C# 导出带有图像的 Gridview 以在自定义图像大小方面表现出色

问题描述

我尝试将 Gridview 导出到包含图像的 excel，代码成功执行，但是 excel 单元格内的图像大小大于单元格的高度和宽度，在与导出部分相关的代码下方。

感谢帮助

 protected void ExportExcel_Click(object sender,EventArgs e)
    {
        Response.Clear();
        Response.Buffer = true;
        response.addheader("content-disposition","attachment;filename=GridViewExport.xls");
        Response.Charset = "";
        Response.ContentType = "application/vnd.ms-excel";
        StringWriter sw = new StringWriter();
        HtmlTextWriter hw = new HtmlTextWriter(sw);
        foreach (TableCell cell in GridView1.HeaderRow.Cells)
        {
            cell.BackColor = GridView1.HeaderStyle.BackColor;
        }
        foreach (GridViewRow row in GridView1.Rows)
        {
            row.BackColor = System.Drawing.Color.White;
            foreach (TableCell cell in row.Cells)
            {
                if (row.RowIndex % 2 == 0)
                {
                    cell.BackColor = GridView1.AlternatingRowStyle.BackColor;
                    cell.Width = 200;
                    cell.Height = 150;
                }
                else
                {
                    cell.BackColor = GridView1.RowStyle.BackColor;
                    cell.Width = 150;
                    cell.Height = 100;
                }
                cell.CssClass = "textmode";
            }
        }
        
        GridView1.RenderControl(hw);
        string style = @"<style> .textmode { mso-number-format:\@; } </style>";
        Response.Write(style);
        Response.Output.Write(sw.ToString());
        Response.Flush();
        Response.End();
    }

解决方法

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