///?<summary>
????????///?從DataSet導出Excel
????????///?</summary>
????????///?<param?name="ds"></param>
????????///?<param?name="headTexts"></param>
????????///?<param?name="fields"></param>
????????///?<param?name="styles">樣式，如果要顯示為字符串，可設置為vnd.ms-excel.numberformat:@</param>
????????///?<param?name="cssNames"></param>
????????public?void?ExportDataSetToExcel(DataSet?ds,?string[]?headTexts,?string[]?fields,?string[]?formats,?string[]?styles,?string?fileName)
????????{
????????????//?檢測參數
????????????if?(ds?==?null?||?ds.Tables.Count?==?0)
????????????{
????????????????Alert("數據源為空！");
????????????????return;
????????????}
????????????if?(headTexts?==?null?||?fields?==?null?||?headTexts.Length?!=?fields.Length?||?headTexts.Length?>?ds.Tables[0].Columns.Count)
????????????{
????????????????Alert("參數與數據源不匹配！");
????????????????return;
????????????}
????????????if?(formats?!=?null)
????????????{
????????????????if?(formats.Length?<?headTexts.Length)
????????????????{
????????????????????string[]?tmp?=?formats;
????????????????????formats?=?new?string[headTexts.Length];
????????????????????tmp.CopyTo(formats,?0);
????????????????????tmp?=?null;
????????????????}
????????????}
????????????if?(styles?!=?null)
????????????{
????????????????if?(styles.Length?<?headTexts.Length)
????????????????{
????????????????????string[]?tmp?=?styles;
????????????????????styles?=?new?string[headTexts.Length];
????????????????????tmp.CopyTo(styles,?0);
????????????????????tmp?=?null;
????????????????}
????????????}

????????????if?(Common.StringUtils.IsNullOrEmpty(fileName))
????????????{
????????????????fileName?=?string.Format("excel{0:yyyyMMdd}.xls",?DateTime.Now);
????????????}

????????????Response.Clear();?
????????????Response.Buffer?=?true;?
????????????Response.Charset?=?"UTF-8";??
????????????Response.AppendHeader("Content-Disposition",?"attachment;filename="?+?fileName);??
????????????Response.ContentEncoding?=?System.Text.Encoding.Default;??
????????????Response.ContentType?=?"application/ms-excel";
????????????this.EnableViewState?=?false;
????????????Response.Write("<table?cellspacing='0'?rules='all'?border='1'?style='border-collapse:collapse;'>");

????????????//?表頭
????????????Response.Write("<thead>");
????????????foreach?(string?headText?in?headTexts)
????????????{
????????????????Response.Write(string.Format("<th>{0}</th>",?headText));
????????????}
????????????Response.Write("</thead>");

????????????foreach?(DataRow?row?in?ds.Tables[0].Rows)
????????????{
????????????????Response.Write("<tr>");
????????????????for?(int?i?=?0;?i?<?headTexts.Length;?++i)
????????????????{
????????????????????Response.Write("<td");
????????????????????if?(styles?!=?null?&&?Common.StringUtils.IsNullOrEmpty(styles[i])?==?false)
????????????????????{
????????????????????????Response.Write(string.Format("?style=\"{0}\"",?styles[i]));
????????????????????}
????????????????????Response.Write(">");
????????????????????if?(formats?!=?null?&&?Common.StringUtils.IsNullOrEmpty(formats[i])?==?false)
????????????????????{
????????????????????????Response.Write(string.Format(formats[i],?row[fields[i]]));
????????????????????}
????????????????????else
????????????????????{
????????????????????????Response.Write(row[fields[i]]);
????????????????????}
????????????????????Response.Write("</td>");
????????????????}
????????????????Response.Write("</tr>");
????????????}
????????????Response.Write("</table>");
????????????Response.End();
????????}

轉載于:https://www.cnblogs.com/ahjxxy/archive/2009/04/01/1427206.html

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