C# 获取DataTable数据导出到Excel

    protected void ExportExcel(System.Data.DataTable dt)
    {
        if (dt == null || dt.Rows.Count == 0) return;
        Microsoft.Office.Interop.Excel.Application xlsxApp = new Application();
        if (xlsxApp == null) return;
        //System.Globalization.CultureInfo CurrentCI = System.Threading.Thread.CurrentThread.CurrentCulture;
        //System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
        Microsoft.Office.Interop.Excel.Workbooks workbooks = xlsxApp.Workbooks;
        Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
        Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];
        Microsoft.Office.Interop.Excel.Range range;
        long totalCount = dt.Rows.Count;
        long rowRead = 0;
        float percent = 0;
        for (int i = 0; i < dt.Columns.Count; i++)
        {
            worksheet.Cells[1, i + 1] = dt.Columns[i].ColumnName;
            range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[1, i + 1];
            range.Interior.ColorIndex = 15;
        }
        for (int r = 0; r < dt.Rows.Count; r++)
        {
            for (int i = 0; i < dt.Columns.Count; i++)
            {
                try
                {
                    worksheet.Cells[r + 2, i + 1] = dt.Rows[r][i].ToString();
                }
                catch (Exception)
                {
                    worksheet.Cells[r + 2, i + 1] = dt.Rows[r][i].ToString().Replace("=", "");
                    throw;
                }
            }
            rowRead++;
            percent = ((float)(100 * rowRead)) / totalCount;
        }
        ////在Excel的指定位置加入图片
        //worksheet.Shapes.AddPicture("C:\Users\mengmeng.zhao\Desktop\1.jpg",
        //    Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoTrue, 100, 200, 200, 300);
        ////在Excel的指定位置加入文本框，和里面的内容.
        //worksheet.Shapes.AddTextEffect(Microsoft.Office.Core.MsoPresetTextEffect.msoTextEffect1,
        //    "123456", "Red", 15, Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoTrue, 150, 200);

        xlsxApp.Visible = true;
    }