DataTable导出成excel

来源：互联网发布：上海数据交易中心知乎编辑：程序博客网时间：2024/06/05 19:36

没完全看懂,直接复制用.

  protected void ExportExcel(DataTable dt)        {            if (dt == null || dt.Rows.Count == 0) return;            Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();            if (xlApp == 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 = xlApp.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;                range.Font.Bold = true;            }            for (int r = 0; r < dt.Rows.Count; r++)            {                for (int i = 0; i < dt.Columns.Count; i++)                {                    worksheet.Cells[r + 2, i + 1] = dt.Rows[r][i].ToString();                }                rowRead++;                percent = ((float)(100 * rowRead)) / totalCount;            }            xlApp.Visible = true;        }

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