本文实例讲述了C#使用winform简单导出Excel的方法。分享给大家供大家参考，具体如下：
using Excel;
在项目中引入Excel.dll
/// <summary>
/// 导出Excel
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnExportExcel_Click( object sender, EventArgs e)
{
DataTable dt = this .dgvWaterTicket.DataSource;
if (dt == null )
{
return ;
}
if (dt.Rows.Count == 0)
{
return ;
}
Excel.Application xlApp = new Excel.Application();
if (xlApp == null )
{
MessageBox.Show( "请确保您的电脑已经安装Excel" , "提示信息" , MessageBoxButtons.OK, MessageBoxIcon.Error);
return ;
}
xlApp.UserControl = true ;
Excel.Workbooks workbooks = xlApp.Workbooks;
//根据模版产生新的workbook //Workbook workbook = workbooks.Add("D:\\aa.xls");
Excel.Workbook workbook = workbooks.Add(Excel.XlWBATemplate.xlWBATWorksheet);
Excel.Worksheet worksheet = (Excel.Worksheet)workbook.Worksheets[1]; //取得sheet1
if (worksheet == null )
{
MessageBox.Show( "请确保您的电脑已经安装Excel" , "提示信息" , MessageBoxButtons.OK, MessageBoxIcon.Error);
return ;
}
try
{
Excel.Range range;
long totalCount = dt.Rows.Count;
long rowRead = 0;
float percent = 0;
worksheet.Cells[1, 1] = frm.Text; //导出的标题
worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, dt.]).MergeCells = true ; //合并单元格---列数
worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 3]).HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter; //居中对齐
worksheet.get_Range(worksheet.Cells[1, 3], worksheet.Cells[1, 3]).ColumnWidth = 15; //列宽
worksheet.get_Range(worksheet.Cells[1, 2], worksheet.Cells[1, 2]).ColumnWidth = 15; //列宽
worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 1]).ColumnWidth = 20; //列宽
//写入字段
for ( int i = 0; i < dt.Columns.Count; i++)
{
worksheet.Cells[2, i + 1] = dt.Columns[i].ColumnName;
range = (Excel.Range)worksheet.Cells[2, i + 1];
range.Interior.ColorIndex = 15;
range.Font.Bold = true ;
}
//写入数值
for ( int r = 0; r < dt.Rows.Count; r++)
{
for ( int i = 0; i < dt.Columns.Count; i++)
{
worksheet.Cells[r + 3, i + 1] = dt.Rows[r][i];
}
rowRead++;
percent = (( float )(100 * rowRead)) / totalCount;
//System.Threading.Thread.Sleep(500);
//如果字的数量过多则自动换行。worksheet.Cells[r+1, 4]为worksheet.Cells[行, 列]
worksheet.get_Range(worksheet.Cells[r + 3, 4], worksheet.Cells[r + 1, 4]).Columns.WrapText = true ; //自动换行
worksheet.get_Range(worksheet.Cells[r + 3, 4], worksheet.Cells[r + 3, 4]).Rows.AutoFit(); //自动加行高
//this.Text = "导出数据[" + percent.ToString("0.00") + "%]...";
}
range = worksheet.get_Range(worksheet.Cells[2, 1], worksheet.Cells[dt.Rows.Count + 2, dt.Columns.Count]);
range.BorderAround(Excel.XlLineStyle.xlContinuous, Excel.XlBorderWeight.xlThin, Excel.XlColorIndex.xlColorIndexAutomatic, null );
range.Borders[Excel.XlBordersIndex.xlInsideHorizontal].ColorIndex = Excel.XlColorIndex.xlColorIndexAutomatic;
range.Borders[Excel.XlBordersIndex.xlInsideHorizontal].LineStyle = Excel.XlLineStyle.xlContinuous;
range.Borders[Excel.XlBordersIndex.xlInsideHorizontal].Weight = Excel.XlBorderWeight.xlThin;
if (dt.Columns.Count > 1)
{
range.Borders[Excel.XlBordersIndex.xlInsideVertical].ColorIndex = Excel.XlColorIndex.xlColorIndexAutomatic;
range.Borders[Excel.XlBordersIndex.xlInsideVertical].LineStyle = Excel.XlLineStyle.xlContinuous;
range.Borders[Excel.XlBordersIndex.xlInsideVertical].Weight = Excel.XlBorderWeight.xlThin;
}
xlApp.Visible = true ;
}
catch
{
MessageBox.Show( "到出Excel失败！" , "提示信息" , MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(worksheet);
System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);
System.Runtime.InteropServices.Marshal.ReleaseComObject(workbooks);
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp);
//KillProcess("Excel");
GC.Collect(); //强行销毁
}
}
希望本文所述对大家C#程序设计有所帮助。
dy("nrwz");
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