C#,操作Excel公共类

我们会经常用到Excel,无论是存还是取，或是导出Excel，收集了一些常用到的Class，Function:

using System.Xml.Xsl;
using System.Xml;
using System.IO;
using System.Data.OleDb;

public class UtilExcel
{
    public static void SetPlainHeaders(HttpResponse response, HttpRequest request, string strFileName)
    {
        response.Clear();
        response.ContentType = "text/plain";
        response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}", strFileName));
        response.ContentEncoding = Encoding.GetEncoding("big5");
    }

    public static void SetHeaders(HttpResponse response, HttpRequest request, string strFileName)
    {
        response.Clear();
        response.ContentType = "application/vnd.ms-excel";
        response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.xls", strFileName));
        response.ContentEncoding = Encoding.GetEncoding("big5");

    }

    public static void ExportPlain(string FileName, string strContent)
    {
        try
        {
            SetPlainHeaders(HttpContext.Current.Response, HttpContext.Current.Request, FileName);
            HttpContext.Current.Response.Write(strContent);
            HttpContext.Current.Response.End();
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }

    public static void ExportExcel(string FileName, string strContent)
    {
        try
        {
            SetHeaders(HttpContext.Current.Response, HttpContext.Current.Request, FileName);
            HttpContext.Current.Response.Write(strContent);
            HttpContext.Current.ApplicationInstance.CompleteRequest();
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }

    public static void ExportExcelWithHtml(DataTable dt, string FileName, List<ColumnInfo> lstHeaders)
    {
        ExportExcel(FileName, GenerateHtml(dt, lstHeaders));
    }

    public static void ExportExcelWithHtml(DataTable dt, string FileName, List<ColumnInfo> lstHeaders, Dictionary<string, int> dicCaption, Dictionary<string, int> dicRowSpan, int leftPad)
    {
        ExportExcel(FileName, GenerateSpecialHtml(dt, lstHeaders, dicCaption, dicRowSpan, leftPad));
    }

    public static void ExportExcelWithGroup(string strGroupField, DataTable dtData, List<ColumnInfo> lstHeaders, string strFileName, List<ColumnInfo> lstSumFields)
    {
        ExportExcel(strFileName, GenerateHtmlWithGroup(strGroupField, dtData, lstHeaders, lstSumFields));
    }

    private static string GenerateSpecialHtml(DataTable dtData, List<ColumnInfo> lstHeaders, Dictionary<string, int> dicCaption, Dictionary<string, int> dicRowSpan, int leftPad)
    {
        Regex reg = new Regex("^0[0-9]+");
        StringBuilder builder = new StringBuilder();
        GenerateHtmlHeader(builder);
        builder.AppendFormat("<tr>");
        for (int i = 0; i < leftPad; i++)
        {
            builder.AppendFormat("<td></td>");
        }
        foreach (string strKey in dicCaption.Keys)
        {
            builder.AppendFormat("<td colspan='{0}'>[{1}]</td>", dicCaption[strKey] + 1, strKey);
        }
        builder.AppendFormat("</tr>");
        GenerateCaption(builder, dtData, lstHeaders.Count);
        GenerateHeader(dtData, builder, lstHeaders, new List<ColumnInfo>());
        int k = 0;
        foreach (DataRow drRow in dtData.Rows)
        {
            k++;
            builder.AppendFormat("<tr>");
            foreach (ColumnInfo col in lstHeaders)
            {
                if (dtData.Columns.Contains(col.ColumnName)
                    && col.IsShow)
                {
                    if (col.ColumnType.ToLower().Equals(Public_ColumnType.BOOLEAN.ToString().ToLower()))
                    {
                        builder.AppendFormat("<td align='center' valign='middle'>{0}</td>",
                            "1".Equals(drRow[col.ColumnName].ToString()) ? "是" : "否");
                    }
                    else if (dicRowSpan.ContainsKey(drRow[col.ColumnName].ToString()))
                    {
                        if (k == 1)
                        {
                            builder.AppendFormat("<td rowspan='{0}' align='center' valign='middle'>{1}</td>", dicRowSpan[drRow[col.ColumnName].ToString()],
                               drRow[col.ColumnName].ToString());
                        }
                        if (k == dicRowSpan[drRow[col.ColumnName].ToString()])
                        {
                            k = 0;
                        }
                    }
                    else
                    {
                        builder.AppendFormat("<td align='center' valign='middle'>{0}</td>", drRow[col.ColumnName].ToString());
                    }
                }
            }
            builder.AppendFormat("</tr>");
        }
        GenerateHtmlFooter(builder);
        return builder.ToString();
    }

    private static string GenerateHtml(DataTable dtData, List<ColumnInfo> lstHeaders)
    {
        StringBuilder builder = new StringBuilder();
        GenerateHtmlHeader(builder);
        GenerateCaption(builder, dtData, lstHeaders.Count);
        GenerateHeader(dtData, builder, lstHeaders, new List<ColumnInfo>());
        GenerateContent(dtData, builder, lstHeaders);
        GenerateHtmlFooter(builder);
        return builder.ToString();
    }

    private static string GenerateHtmlWithGroup(string strGroupField, DataTable dtData, List<ColumnInfo> lstHeaders, List<ColumnInfo> lstSumFields)
    {
        StringBuilder builder = new StringBuilder();
        Regex reg = new Regex("^0[0-9]+");
        GenerateHtmlHeader(builder);
        GenerateCaption(builder, dtData, lstHeaders.Count - 1);
        GenerateHeader(dtData, builder, lstHeaders, new List<ColumnInfo>() { new ColumnInfo() { ColumnName = strGroupField } });
        foreach (ColumnInfo col in lstSumFields)
        {
            dtData.Columns.Add(new DataColumn() { ColumnName = string.Format("Total_{0}_{1}", strGroupField, col.ColumnName), DefaultValue = 0 });
            dtData.Columns.Add(new DataColumn() { ColumnName = string.Format("Total_{0}", col.ColumnName), DefaultValue = 0 });
        }
        string strNextGroupData = string.Empty;
        string strCurrentRowData = string.Empty;
        int intNewLine = 0;
        for (int i = 0; i < dtData.Rows.Count; i++)
        {
            strNextGroupData = string.Empty;
            DataRow drRow = dtData.Rows[i];
            strCurrentRowData = drRow[strGroupField].ToString();
            if (intNewLine == 0)
            {
                builder.AppendFormat("<tr><td>{0}</td></tr>", reg.IsMatch(strCurrentRowData) ? "'" + strCurrentRowData : strCurrentRowData);
            }
            builder.AppendFormat("<tr>");
            foreach (ColumnInfo col in lstHeaders)
            {
                if (!col.ColumnName.Equals(strGroupField))
                {
                    builder.AppendFormat("<td align='center' valign='middle'>{0}</td>", reg.IsMatch(drRow[col.ColumnName].ToString()) ? "'" + drRow[col.ColumnName].ToString() : drRow[col.ColumnName].ToString());
                }
            }
            builder.AppendFormat("</tr>");
            if (intNewLine == 0)
            {
                foreach (ColumnInfo col in lstSumFields)
                {
                    drRow[string.Format("Total_{0}_{1}", strGroupField, col.ColumnName)] = drRow[col.ColumnName].ToString();
                }
            }
            else
            {
                foreach (ColumnInfo col in lstSumFields)
                {
                    drRow[string.Format("Total_{0}_{1}", strGroupField, col.ColumnName)] = Convert.ToDouble(dtData.Rows[i - 1][string.Format("Total_{0}_{1}", strGroupField, col.ColumnName)]) + Convert.ToDouble(drRow[col.ColumnName].ToString());
                }
            }
            if (i == 0)
            {
                foreach (ColumnInfo col in lstSumFields)
                {
                    drRow[string.Format("Total_{0}", col.ColumnName)] = drRow[col.ColumnName].ToString();
                }
            }
            else
            {
                foreach (ColumnInfo col in lstSumFields)
                {
                    drRow[string.Format("Total_{0}", col.ColumnName)] = Convert.ToDouble(dtData.Rows[i - 1][string.Format("Total_{0}", col.ColumnName)]) + Convert.ToDouble(drRow[col.ColumnName].ToString());
                }
            }
            intNewLine++;
            if ((i + 1) < dtData.Rows.Count)
            {
                strNextGroupData = dtData.Rows[i + 1][strGroupField].ToString();
            }
            if (!strCurrentRowData.Equals(strNextGroupData))
            {
                AppendLastGroupLine(lstHeaders, lstSumFields, builder, drRow, strGroupField);
                intNewLine = 0;
            }
        }
        if (dtData.Rows.Count > 0)
        {
            AppendLastTotalLine(lstHeaders, lstSumFields, builder, dtData.Rows[dtData.Rows.Count - 1], strGroupField);
        }
        GenerateHtmlFooter(builder);
        return builder.ToString();
    }

    private static void AppendLastGroupLine(List<ColumnInfo> lstHeaders, List<ColumnInfo> lstSumFields, StringBuilder builder, DataRow drRow, string strGroupField)
    {
        builder.AppendFormat("<tr>");
        for (int i = 0; i < lstHeaders.Count; i++)
        {
            ColumnInfo col = lstHeaders[i];
            if (col.ColumnName.Equals(strGroupField)) continue;
            if (lstSumFields.Contains(col))
            {
                builder.AppendFormat("<td align='center' valign='middle'style=\"color:red;\">{0}</td>", drRow[string.Format("Total_{0}_{1}", strGroupField, col.ColumnName)].ToString());
                drRow[string.Format("Total_{0}_{1}", strGroupField, col.ColumnName)] = 0;
            }
            else
            {
                if (i == 0)
                {
                    builder.AppendFormat("<td>{0}</td>", "小計:");
                }
                else
                {
                    builder.AppendFormat("<td>{0}</td>", string.Empty);
                }
            }
        }
        builder.AppendFormat("</tr>");
    }

    private static void AppendLastTotalLine(List<ColumnInfo> lstHeaders, List<ColumnInfo> lstSumFields, StringBuilder builder, DataRow drRow, string strGroupField)
    {
        builder.AppendFormat("<tr>");
        for (int i = 0; i < lstHeaders.Count; i++)
        {
            ColumnInfo col = lstHeaders[i];
            if (col.ColumnName.Equals(strGroupField)) continue;
            if (lstSumFields.Contains(col))
            {
                builder.AppendFormat("<td align='center' valign='middle'style=\"color:red;\">{0}</td>", drRow[string.Format("Total_{0}", col.ColumnName)].ToString());
            }
            else
            {
                if (i == 0)
                {
                    builder.AppendFormat("<td style=\"color:red;\">{0}</td>", "總計:");
                }
                else
                {
                    builder.AppendFormat("<td>{0}</td>", string.Empty);
                }
            }
        }
        builder.AppendFormat("</tr>");
    }

    public static void GenerateContent(DataTable dtData, StringBuilder builder, List<ColumnInfo> lstHeaders)
    {
        Regex reg = new Regex(@"(^[-0\\+][0-9]+)|(^\d+[-]\d+$)");
        foreach (DataRow drRow in dtData.Rows)
        {
            builder.AppendFormat("<tr>");
            foreach (ColumnInfo col in lstHeaders)
            {
                if (dtData.Columns.Contains(col.ColumnName)
                    && col.IsShow)
                {
                    if (col.ColumnType.ToLower().Equals(Public_ColumnType.BOOLEAN.ToString().ToLower()))
                    {
                        builder.AppendFormat("<td align='center' valign='middle'>{0}</td>",
                            "1".Equals(drRow[col.ColumnName].ToString()) ? "是" : "否");
                    }
                    else
                    {
                        builder.AppendFormat("<td align='center' {0} valign='middle'>{1}</td>",
                            reg.IsMatch(drRow[col.ColumnName].ToString()) ? "style=\"mso-number-format:'\\@';\"" : "",
                            drRow[col.ColumnName].ToString());
                    }
                }
            }
            builder.AppendFormat("</tr>");
        }
    }

    public static void GenerateHtmlHeaderWithoutTable(StringBuilder builder)
    {
        builder.AppendFormat(@"<html><head>
            <!--[if gte mso 9]><xml>
                <x:ExcelWorkbook>
                    <x:ExcelWorksheets>
                        <x:ExcelWorksheet>
                            <x:Name>工作表标题</x:Name>
                            <x:WorksheetOptions>
                                <x:Print>
                                    <x:ValidPrinterInfo />
                                </x:Print>
                            </x:WorksheetOptions>
                        </x:ExcelWorksheet>
                    </x:ExcelWorksheets>
                </x:ExcelWorkbook>
            </xml>
            <![endif]-->
        <meta http-equiv='Content-Type' content='text/html; charset=big5'>
        </head>
        <body>");
    }

    public static void GenerateHtmlHeader(StringBuilder builder)
    {
        builder.AppendFormat(@"<html><head>
            <!--[if gte mso 9]><xml>
                <x:ExcelWorkbook>
                    <x:ExcelWorksheets>
                        <x:ExcelWorksheet>
                            <x:Name>工作表标题</x:Name>
                            <x:WorksheetOptions>
                                <x:Print>
                                    <x:ValidPrinterInfo />
                                </x:Print>
                            </x:WorksheetOptions>
                        </x:ExcelWorksheet>
                    </x:ExcelWorksheets>
                </x:ExcelWorkbook>
            </xml>
            <![endif]-->
        <meta http-equiv='Content-Type' content='text/html; charset=big5'>
        </head>
        <body><table border='1' style='border-collapse:collapse'>");
    }

    public static void GenerateHtmlFooterWithoutTable(StringBuilder builder)
    {
        builder.AppendFormat("</body></html>");
    }

    public static void GenerateHtmlFooter(StringBuilder builder)
    {
        builder.AppendFormat("</table></body></html>");
    }

    public static void GenerateCaption(StringBuilder builder, DataTable dtData, int colSpan)
    {
        if (dtData.ExtendedProperties.ContainsKey("Caption"))
        {
            builder.AppendFormat("<tr><td align='center' valign='middle' colspan='{0}'style=\"font-size:large; color:red;\">{1}</td></tr>", colSpan, dtData.ExtendedProperties["Caption"].ToString());
        }
    }

    public static void GenerateHeader(DataTable dtData, StringBuilder builder, List<ColumnInfo> lstHeaders, List<ColumnInfo> lstExcludes)
    {
        builder.AppendFormat("<tr>");
        foreach (ColumnInfo col in lstHeaders)
        {
            if (dtData.Columns.Contains(col.ColumnName) && col.IsShow)
            {
                if (!lstExcludes.Contains(col))
                {
                    builder.AppendFormat("<td align='center' valign='middle' style=\"mso-number-format:'\\@';\">{0}</td>", col.ColumnDisplayName);
                }
            }
        }
        builder.AppendFormat("</tr>");
    }

    public static void Export(XmlNode xml, string fileName, HttpResponse response, HttpServerUtility server)
    {
        response.Clear();
        response.ContentType = "application/vnd.ms-excel";
        response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.xls", fileName));
        XslCompiledTransform xtExcel = new XslCompiledTransform();
        xtExcel.Load(server.MapPath("Excel.xsl"));
        xtExcel.Transform(xml, null, response.OutputStream);
        response.End();
    }

    public static void ExportExcel(DataTable dt, string strFileName, List<ColumnInfo> lstHeaders)
    {
        if (dt == null || dt.Rows.Count == 0) return;
        HttpResponse response = HttpContext.Current.Response;
        HttpServerUtility server = HttpContext.Current.Server;
        SetHeaders(HttpContext.Current.Response, HttpContext.Current.Request, strFileName);
        XslCompiledTransform xtExcel = new XslCompiledTransform();
        xtExcel.Load(server.MapPath("Excel.xsl"));
        string strJson = UtilJson.DataTableToJson(dt, lstHeaders);
        XmlNode xmlNode = JsonConvert.DeserializeXmlNode("{records:{record:" + strJson + "}}");
        xtExcel.Transform(xmlNode, null, response.OutputStream);
        response.End();
    }

    public static void DataSetToExcel(DataTable dt, string FileName, List<ColumnInfo> lstHeaders)
    {
        try
        {
            SetHeaders(HttpContext.Current.Response, HttpContext.Current.Request, FileName);
            StringBuilder colHeaders = new StringBuilder();
            StringBuilder Is_item = new StringBuilder();
            StringWriter sfw = new StringWriter();
            int i = 0;
            int cl = dt.Columns.Count;
            for (i = 0; i < lstHeaders.Count; i++)
            {
                if (dt.Columns.Contains(lstHeaders[i].ColumnName))
                {
                    colHeaders.Append(lstHeaders[i].ColumnDisplayName.Replace("\n", " ").Replace("\r", " ") + "\t");
                }
            }
            sfw.WriteLine(colHeaders.ToString());
            string strValue = string.Empty;
            string strType = string.Empty;
            Regex reg = new Regex(@"(^0[0-9]+)|(^\d+[-]\d+$)");
            foreach (DataRow row in dt.Rows)
            {
                for (i = 0; i < lstHeaders.Count; i++)
                {
                    if (dt.Columns.Contains(lstHeaders[i].ColumnName.ToString()))
                    {
                        strValue = row[lstHeaders[i].ColumnName].ToString();
                        strType = dt.Columns[lstHeaders[i].ColumnName].DataType.FullName;
                        if (reg.IsMatch(strValue))
                        {
                            Is_item.Append("'" + strValue.Replace("\n", " ").Replace("\r", " ").Replace("\t", " ") + "\t");
                        }
                        else
                        {
                            Is_item.Append(strValue.Replace("\n", " ").Replace("\r", " ").Replace("\t", " ") + "\t");
                        }
                    }
                }
                sfw.WriteLine(Is_item);
                Is_item = new StringBuilder();
            }
            HttpContext.Current.Response.Write(sfw.ToString());
            HttpContext.Current.Response.End();
        }
        catch (Exception e)
        {
            throw e;
        }
    }

    public static void DataSetToExcel(DataSet ds, string FileName, List<ColumnInfo> lstHeaders)
    {
        DataSetToExcel(ds.Tables[0], FileName, lstHeaders);
    }

    public static DataSet GetDataFromExcel(string strExcelFile, string strSql)
    {
        string strConn = string.Format(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='Excel 8.0;HDR=Yes;IMEX=1';", strExcelFile);
        DataSet ds = new DataSet();
        using (OleDbConnection conn = new OleDbConnection(strConn))
        {
            conn.Open();
            using (OleDbDataAdapter adapter = new OleDbDataAdapter(strSql, strConn))
            {
                adapter.Fill(ds);
            }
        }
        return ds;
    }

    public static int ExecuteNonQuery(string strExcelFile, string strSql)
    {
        string strConn = string.Format(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='Excel 8.0;HDR=Yes;IMEX=1';", strExcelFile);
        OleDbCommand cmd = new OleDbCommand();

        using (OleDbConnection conn = new OleDbConnection(strConn))
        {
            if (!conn.State.Equals(ConnectionState.Open))
            {
                conn.Open();
            }
            cmd.Connection = conn;
            cmd.CommandText = strSql;
            cmd.CommandType = CommandType.Text;
            int val = cmd.ExecuteNonQuery();
            cmd.Parameters.Clear();
            return val;
        }
    }
}

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public class UtilExcel

{

public static void SetPlainHeaders(HttpResponse response, HttpRequest request, string strFileName)

{

response.Clear();

response.ContentType = "text/plain";

response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}", strFileName));

response.ContentEncoding = Encoding.GetEncoding("big5");

}

public static void SetHeaders(HttpResponse response, HttpRequest request, string strFileName)

{

response.Clear();

response.ContentType = "application/vnd.ms-excel";

response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.xls", strFileName));

response.ContentEncoding = Encoding.GetEncoding("big5");

}

public static void ExportPlain(string FileName, string strContent)

{

try

{

SetPlainHeaders(HttpContext.Current.Response, HttpContext.Current.Request, FileName);

HttpContext.Current.Response.Write(strContent);

HttpContext.Current.Response.End();

}

catch (Exception ex)

{

throw ex;

}

public static void ExportExcel(string FileName, string strContent)

{

try

{

SetHeaders(HttpContext.Current.Response, HttpContext.Current.Request, FileName);

HttpContext.Current.Response.Write(strContent);

HttpContext.Current.ApplicationInstance.CompleteRequest();

}

catch (Exception ex)

{

throw ex;

}

public static void ExportExcelWithHtml(DataTable dt, string FileName, List<ColumnInfo> lstHeaders)

{

ExportExcel(FileName, GenerateHtml(dt, lstHeaders));

}

public static void ExportExcelWithHtml(DataTable dt, string FileName, List<ColumnInfo> lstHeaders, Dictionary<string, int> dicCaption, Dictionary<string, int> dicRowSpan, int leftPad)

{

ExportExcel(FileName, GenerateSpecialHtml(dt, lstHeaders, dicCaption, dicRowSpan, leftPad));

}

public static void ExportExcelWithGroup(string strGroupField, DataTable dtData, List<ColumnInfo> lstHeaders, string strFileName, List<ColumnInfo> lstSumFields)

{

ExportExcel(strFileName, GenerateHtmlWithGroup(strGroupField, dtData, lstHeaders, lstSumFields));

}

private static string GenerateSpecialHtml(DataTable dtData, List<ColumnInfo> lstHeaders, Dictionary<string, int> dicCaption, Dictionary<string, int> dicRowSpan, int leftPad)

{

Regex reg = new Regex("^0[0-9]+");

StringBuilder builder = new StringBuilder();

GenerateHtmlHeader(builder);

builder.AppendFormat("<tr>");

for (int i = 0; i < leftPad; i++)

{

builder.AppendFormat("<td></td>");

}

foreach (string strKey in dicCaption.Keys)

{

builder.AppendFormat("<td colspan='{0}'>[{1}]</td>", dicCaption[strKey] + 1, strKey);

}

builder.AppendFormat("</tr>");

GenerateCaption(builder, dtData, lstHeaders.Count);

GenerateHeader(dtData, builder, lstHeaders, new List<ColumnInfo>());

int k = 0;

foreach (DataRow drRow in dtData.Rows)

{

k++;

builder.AppendFormat("<tr>");

foreach (ColumnInfo col in lstHeaders)

{

if (dtData.Columns.Contains(col.ColumnName)

&& col.IsShow)

{

if (col.ColumnType.ToLower().Equals(Public_ColumnType.BOOLEAN.ToString().ToLower()))

{

builder.AppendFormat("<td align='center' valign='middle'>{0}</td>",

"1".Equals(drRow[col.ColumnName].ToString()) ? "是" : "否");

}

else if (dicRowSpan.ContainsKey(drRow[col.ColumnName].ToString()))

{

if (k == 1)

{

builder.AppendFormat("<td rowspan='{0}' align='center' valign='middle'>{1}</td>", dicRowSpan[drRow[col.ColumnName].ToString()],

drRow[col.ColumnName].ToString());

}

if (k == dicRowSpan[drRow[col.ColumnName].ToString()])

{

k = 0;

}

else

{

builder.AppendFormat("<td align='center' valign='middle'>{0}</td>", drRow[col.ColumnName].ToString());

}

builder.AppendFormat("</tr>");

}

GenerateHtmlFooter(builder);

return builder.ToString();

}

private static string GenerateHtml(DataTable dtData, List<ColumnInfo> lstHeaders)

{

StringBuilder builder = new StringBuilder();

GenerateHtmlHeader(builder);

GenerateCaption(builder, dtData, lstHeaders.Count);

GenerateHeader(dtData, builder, lstHeaders, new List<ColumnInfo>());

GenerateContent(dtData, builder, lstHeaders);

GenerateHtmlFooter(builder);

return builder.ToString();

}

private static string GenerateHtmlWithGroup(string strGroupField, DataTable dtData, List<ColumnInfo> lstHeaders, List<ColumnInfo> lstSumFields)

{

StringBuilder builder = new StringBuilder();

Regex reg = new Regex("^0[0-9]+");

GenerateHtmlHeader(builder);

GenerateCaption(builder, dtData, lstHeaders.Count - 1);

GenerateHeader(dtData, builder, lstHeaders, new List<ColumnInfo>() { new ColumnInfo() { ColumnName = strGroupField } });

foreach (ColumnInfo col in lstSumFields)

{

dtData.Columns.Add(new DataColumn() { ColumnName = string.Format("Total_{0}_{1}", strGroupField, col.ColumnName), DefaultValue = 0 });

dtData.Columns.Add(new DataColumn() { ColumnName = string.Format("Total_{0}", col.ColumnName), DefaultValue = 0 });

}

string strNextGroupData = string.Empty;

string strCurrentRowData = string.Empty;

int intNewLine = 0;

for (int i = 0; i < dtData.Rows.Count; i++)

{

strNextGroupData = string.Empty;

DataRow drRow = dtData.Rows[i];

strCurrentRowData = drRow[strGroupField].ToString();

if (intNewLine == 0)

{

builder.AppendFormat("<tr><td>{0}</td></tr>", reg.IsMatch(strCurrentRowData) ? "'" + strCurrentRowData : strCurrentRowData);

}

builder.AppendFormat("<tr>");

foreach (ColumnInfo col in lstHeaders)

{

if (!col.ColumnName.Equals(strGroupField))

{

builder.AppendFormat("<td align='center' valign='middle'>{0}</td>", reg.IsMatch(drRow[col.ColumnName].ToString()) ? "'" + drRow[col.ColumnName].ToString() : drRow[col.ColumnName].ToString());

}

builder.AppendFormat("</tr>");

if (intNewLine == 0)

{

foreach (ColumnInfo col in lstSumFields)

{

drRow[string.Format("Total_{0}_{1}", strGroupField, col.ColumnName)] = drRow[col.ColumnName].ToString();

}

else

{

foreach (ColumnInfo col in lstSumFields)

{

drRow[string.Format("Total_{0}_{1}", strGroupField, col.ColumnName)] = Convert.ToDouble(dtData.Rows[i - 1][string.Format("Total_{0}_{1}", strGroupField, col.ColumnName)]) + Convert.ToDouble(drRow[col.ColumnName].ToString());

}

if (i == 0)

{

foreach (ColumnInfo col in lstSumFields)

{

drRow[string.Format("Total_{0}", col.ColumnName)] = drRow[col.ColumnName].ToString();

}

else

{

foreach (ColumnInfo col in lstSumFields)

{

drRow[string.Format("Total_{0}", col.ColumnName)] = Convert.ToDouble(dtData.Rows[i - 1][string.Format("Total_{0}", col.ColumnName)]) + Convert.ToDouble(drRow[col.ColumnName].ToString());

}

intNewLine++;

if ((i + 1) < dtData.Rows.Count)

{

strNextGroupData = dtData.Rows[i + 1][strGroupField].ToString();

}

if (!strCurrentRowData.Equals(strNextGroupData))

{

AppendLastGroupLine(lstHeaders, lstSumFields, builder, drRow, strGroupField);

intNewLine = 0;

}

if (dtData.Rows.Count > 0)

{

AppendLastTotalLine(lstHeaders, lstSumFields, builder, dtData.Rows[dtData.Rows.Count - 1], strGroupField);

}

GenerateHtmlFooter(builder);

return builder.ToString();

}

private static void AppendLastGroupLine(List<ColumnInfo> lstHeaders, List<ColumnInfo> lstSumFields, StringBuilder builder, DataRow drRow, string strGroupField)

{

builder.AppendFormat("<tr>");

for (int i = 0; i < lstHeaders.Count; i++)

{

ColumnInfo col = lstHeaders[i];

if (col.ColumnName.Equals(strGroupField)) continue;

if (lstSumFields.Contains(col))

{

builder.AppendFormat("<td align='center' valign='middle'style=\"color:red;\">{0}</td>", drRow[string.Format("Total_{0}_{1}", strGroupField, col.ColumnName)].ToString());

drRow[string.Format("Total_{0}_{1}", strGroupField, col.ColumnName)] = 0;

}

else

{

if (i == 0)

{

builder.AppendFormat("<td>{0}</td>", "小計:");

}

else

{

builder.AppendFormat("<td>{0}</td>", string.Empty);

}

builder.AppendFormat("</tr>");

}

private static void AppendLastTotalLine(List<ColumnInfo> lstHeaders, List<ColumnInfo> lstSumFields, StringBuilder builder, DataRow drRow, string strGroupField)

{

builder.AppendFormat("<tr>");

for (int i = 0; i < lstHeaders.Count; i++)

{

ColumnInfo col = lstHeaders[i];

if (col.ColumnName.Equals(strGroupField)) continue;

if (lstSumFields.Contains(col))

{

builder.AppendFormat("<td align='center' valign='middle'style=\"color:red;\">{0}</td>", drRow[string.Format("Total_{0}", col.ColumnName)].ToString());

}

else

{

if (i == 0)

{

builder.AppendFormat("<td style=\"color:red;\">{0}</td>", "總計:");

}

else

{

builder.AppendFormat("<td>{0}</td>", string.Empty);

}

builder.AppendFormat("</tr>");

}

public static void GenerateContent(DataTable dtData, StringBuilder builder, List<ColumnInfo> lstHeaders)

{

Regex reg = new Regex(@"(^[-0\\+][0-9]+)|(^\d+[-]\d+$)");

foreach (DataRow drRow in dtData.Rows)

{

builder.AppendFormat("<tr>");

foreach (ColumnInfo col in lstHeaders)

{

if (dtData.Columns.Contains(col.ColumnName)

&& col.IsShow)

{

if (col.ColumnType.ToLower().Equals(Public_ColumnType.BOOLEAN.ToString().ToLower()))

{

builder.AppendFormat("<td align='center' valign='middle'>{0}</td>",

"1".Equals(drRow[col.ColumnName].ToString()) ? "是" : "否");

}

else

{

builder.AppendFormat("<td align='center' {0} valign='middle'>{1}</td>",

reg.IsMatch(drRow[col.ColumnName].ToString()) ? "style=\"mso-number-format:'\\@';\"" : "",

drRow[col.ColumnName].ToString());

}

builder.AppendFormat("</tr>");

}

public static void GenerateHtmlHeaderWithoutTable(StringBuilder builder)

{

builder.AppendFormat(@"<html><head>

<!--[if gte mso 9]><xml>

<x:ExcelWorkbook>

<x:ExcelWorksheets>

<x:ExcelWorksheet>

<x:Name>工作表标题</x:Name>

<x:WorksheetOptions>

<x:Print>

<x:ValidPrinterInfo />

</x:Print>

</x:WorksheetOptions>

</x:ExcelWorksheet>

</x:ExcelWorksheets>

</x:ExcelWorkbook>

</xml>

<![endif]-->

</head>

<body>");

}

public static void GenerateHtmlHeader(StringBuilder builder)

{

builder.AppendFormat(@"<html><head>

<!--[if gte mso 9]><xml>

<x:ExcelWorkbook>

<x:ExcelWorksheets>

<x:ExcelWorksheet>

<x:Name>工作表标题</x:Name>

<x:WorksheetOptions>

<x:Print>

<x:ValidPrinterInfo />

</x:Print>

</x:WorksheetOptions>

</x:ExcelWorksheet>

</x:ExcelWorksheets>

</x:ExcelWorkbook>

</xml>

<![endif]-->

</head>

<body><table border='1' style='border-collapse:collapse'>");

}

public static void GenerateHtmlFooterWithoutTable(StringBuilder builder)

{

builder.AppendFormat("</body></html>");

}

public static void GenerateHtmlFooter(StringBuilder builder)

{

builder.AppendFormat("</table></body></html>");

}

public static void GenerateCaption(StringBuilder builder, DataTable dtData, int colSpan)

{

if (dtData.ExtendedProperties.ContainsKey("Caption"))

{

builder.AppendFormat("<tr><td align='center' valign='middle' colspan='{0}'style=\"font-size:large; color:red;\">{1}</td></tr>", colSpan, dtData.ExtendedProperties["Caption"].ToString());

}

public static void GenerateHeader(DataTable dtData, StringBuilder builder, List<ColumnInfo> lstHeaders, List<ColumnInfo> lstExcludes)

{

builder.AppendFormat("<tr>");

foreach (ColumnInfo col in lstHeaders)

{

if (dtData.Columns.Contains(col.ColumnName) && col.IsShow)

{

if (!lstExcludes.Contains(col))

{

builder.AppendFormat("<td align='center' valign='middle' style=\"mso-number-format:'\\@';\">{0}</td>", col.ColumnDisplayName);

}

builder.AppendFormat("</tr>");

}

public static void Export(XmlNode xml, string fileName, HttpResponse response, HttpServerUtility server)

{

response.Clear();

response.ContentType = "application/vnd.ms-excel";

response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.xls", fileName));

XslCompiledTransform xtExcel = new XslCompiledTransform();

xtExcel.Load(server.MapPath("Excel.xsl"));

xtExcel.Transform(xml, null, response.OutputStream);

response.End();

}

public static void ExportExcel(DataTable dt, string strFileName, List<ColumnInfo> lstHeaders)

{

if (dt == null || dt.Rows.Count == 0) return;

HttpResponse response = HttpContext.Current.Response;

HttpServerUtility server = HttpContext.Current.Server;

SetHeaders(HttpContext.Current.Response, HttpContext.Current.Request, strFileName);

XslCompiledTransform xtExcel = new XslCompiledTransform();

xtExcel.Load(server.MapPath("Excel.xsl"));

string strJson = UtilJson.DataTableToJson(dt, lstHeaders);

XmlNode xmlNode = JsonConvert.DeserializeXmlNode("{records:{record:" + strJson + "}}");

xtExcel.Transform(xmlNode, null, response.OutputStream);

response.End();

}

public static void DataSetToExcel(DataTable dt, string FileName, List<ColumnInfo> lstHeaders)

{

try

{

SetHeaders(HttpContext.Current.Response, HttpContext.Current.Request, FileName);

StringBuilder colHeaders = new StringBuilder();

StringBuilder Is_item = new StringBuilder();

StringWriter sfw = new StringWriter();

int i = 0;

int cl = dt.Columns.Count;

for (i = 0; i < lstHeaders.Count; i++)

{

if (dt.Columns.Contains(lstHeaders[i].ColumnName))

{

colHeaders.Append(lstHeaders[i].ColumnDisplayName.Replace("\n", " ").Replace("\r", " ") + "\t");

}

sfw.WriteLine(colHeaders.ToString());

string strValue = string.Empty;

string strType = string.Empty;

Regex reg = new Regex(@"(^0[0-9]+)|(^\d+[-]\d+$)");

foreach (DataRow row in dt.Rows)

{

for (i = 0; i < lstHeaders.Count; i++)

{

if (dt.Columns.Contains(lstHeaders[i].ColumnName.ToString()))

{

strValue = row[lstHeaders[i].ColumnName].ToString();

strType = dt.Columns[lstHeaders[i].ColumnName].DataType.FullName;

if (reg.IsMatch(strValue))

{

Is_item.Append("'" + strValue.Replace("\n", " ").Replace("\r", " ").Replace("\t", " ") + "\t");

}

else

{

Is_item.Append(strValue.Replace("\n", " ").Replace("\r", " ").Replace("\t", " ") + "\t");

}

sfw.WriteLine(Is_item);

Is_item = new StringBuilder();

}

HttpContext.Current.Response.Write(sfw.ToString());

HttpContext.Current.Response.End();

}

catch (Exception e)

{

throw e;

}

public static void DataSetToExcel(DataSet ds, string FileName, List<ColumnInfo> lstHeaders)

{

DataSetToExcel(ds.Tables[0], FileName, lstHeaders);

}

public static DataSet GetDataFromExcel(string strExcelFile, string strSql)

{

string strConn = string.Format(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='Excel 8.0;HDR=Yes;IMEX=1';", strExcelFile);

DataSet ds = new DataSet();

using (OleDbConnection conn = new OleDbConnection(strConn))

{

conn.Open();

using (OleDbDataAdapter adapter = new OleDbDataAdapter(strSql, strConn))

{

adapter.Fill(ds);

}

return ds;

}

public static int ExecuteNonQuery(string strExcelFile, string strSql)

{

string strConn = string.Format(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='Excel 8.0;HDR=Yes;IMEX=1';", strExcelFile);

OleDbCommand cmd = new OleDbCommand();

using (OleDbConnection conn = new OleDbConnection(strConn))

{

if (!conn.State.Equals(ConnectionState.Open))

{

conn.Open();

}

cmd.Connection = conn;

cmd.CommandText = strSql;

cmd.CommandType = CommandType.Text;

int val = cmd.ExecuteNonQuery();

cmd.Parameters.Clear();

return val;

}

Carl

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