从 GridView 导出到 Excel 无法正确显示波斯语答案

【问题标题】：Exporting from GridView to Excel is not show Persian correctly从 GridView 导出到 Excel 无法正确显示波斯语
【发布时间】：2023-03-07 10:29:01
【问题描述】：

通过 SqlDataSource 绑定 GridView，我写了下面的代码从 GridView 导出到 Excel：

System.IO.StringWriter sw = new System.IO.StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.ContentType = "application/vnd.ms-excel";
Response.AddHeader("Content-Disposition", "attachment;filename=" + FileName);
gvReportPrint.GridLines = GridLines.Both;
gvReportPrint.Font.Name = "'BYekan'";

foreach (GridViewRow row in gvReportPrint.Rows)
{
    row.Cells[2].Attributes.Add("class", "textmode");
}

string style = @"<style> .textmode { mso-number-format:\@; } </style>";
gvReportPrint.HeaderStyle.Font.Bold = true;
Response.Write(style);
gvReportPrint.RenderControl(hw);
Response.Output.Write(sw.ToString());
Response.End();

在从 GridView 导出到 Excel 期间，Unicode 字符无法正确显示，它们显示如下： --> Click this link to show the problem <--

【问题讨论】：

标签： excel sql-server-2008 utf-8 export unicode-string

【解决方案1】：

看来您使用的是asp:GridView，我遇到了同样的问题，使用GridView class 解决了如下问题：

public void ToExcel(DataTable dt, string reportName)
    {
        if (dt.Rows.Count > 0)
        {
            string filename = string.Format("{0}.xls", reportName);

            GridView gv = new GridView();

            gv.DataSource = dt;
            gv.HeaderStyle.BackColor = System.Drawing.Color.FromArgb(0, 119, 179);
            gv.HeaderStyle.ForeColor = System.Drawing.Color.FromArgb(250, 250, 250);
            gv.AlternatingRowStyle.BackColor = System.Drawing.Color.FromArgb(191, 191, 191);
            gv.Font.Name = "Tahoma";
            gv.Font.Size = 10;
            gv.DataBind();

            System.IO.StringWriter sw = new System.IO.StringWriter();
            HtmlTextWriter hw = new HtmlTextWriter(sw);
            HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
            HttpContext.Current.Response.ContentType = "application/vnd.ms-excel";
            HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + filename);
            HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.Unicode;
            HttpContext.Current.Response.BinaryWrite(System.Text.Encoding.Unicode.GetPreamble());

            gv.RenderControl(hw);
            HttpContext.Current.Response.Output.Write(sw.ToString());
            HttpContext.Current.Response.End();
        }
    }

dt 应该是您的 gridview 数据源。

也请看ASP.NET Excel export encoding problem

【讨论】：