导出Excel(摘)
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public void ExportToExcel(string filename, System.Data.DataTable dt)
{
if (dt == null)
{
return;
}
string saveFilename = "";
bool fileSaved = false;
SaveFileDialog saveDialog = new SaveFileDialog();
saveDialog.DefaultExt = "xls";
saveDialog.Filter = "Excel文件|*.xls";
saveDialog.FileName=filename;
saveDialog.ShowDialog();
saveFilename = saveDialog.FileName;
if (saveFilename.IndexOf("") < 0)
return;
Microsoft.Office.Interop.Excel.Application xlApp=new Microsoft.Office.Interop.Excel.Application();
if (xlApp == null)
{
MessageBox.Show("无法创建");
return;
}
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];//取得sheet1
Microsoft.Office.Interop.Excel.Range range;
long totalCount = dt.Rows.Count;
long rowRead = 0;
float percent = 0;
//写入字段
for (int i = 0; i < dt.Columns.Count; i++)
{
Cursor.Current = Cursors.WaitCursor;
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;
}
//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 + 2, i + 1] = "'" + dt.Rows[r][i];
}
rowRead++;
percent = ((float)(100 * rowRead)) / totalCount;
System.Windows.Forms.Application.DoEvents();
}
if (dt.Columns.Count > 1)
{
}
if (saveFilename != "")
{
try
{
workbook.Saved = true;
workbook.SaveCopyAs(saveFilename);
fileSaved = true;
}
catch (Exception ex)
{
fileSaved = false;
MessageBox.Show("导出文件时出错,文件可能正被打开!\n" + ex.Message);
}
}
else
{
fileSaved = false;
}
xlApp.Quit();
GC.Collect();// 行销毁
if (fileSaved && File.Exists(saveFilename)) System.Diagnostics.Process.Start(saveFilename);
MessageBox.Show("导出数据已成功!");
}
{
if (dt == null)
{
return;
}
string saveFilename = "";
bool fileSaved = false;
SaveFileDialog saveDialog = new SaveFileDialog();
saveDialog.DefaultExt = "xls";
saveDialog.Filter = "Excel文件|*.xls";
saveDialog.FileName=filename;
saveDialog.ShowDialog();
saveFilename = saveDialog.FileName;
if (saveFilename.IndexOf("") < 0)
return;
Microsoft.Office.Interop.Excel.Application xlApp=new Microsoft.Office.Interop.Excel.Application();
if (xlApp == null)
{
MessageBox.Show("无法创建");
return;
}
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];//取得sheet1
Microsoft.Office.Interop.Excel.Range range;
long totalCount = dt.Rows.Count;
long rowRead = 0;
float percent = 0;
//写入字段
for (int i = 0; i < dt.Columns.Count; i++)
{
Cursor.Current = Cursors.WaitCursor;
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;
}
//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 + 2, i + 1] = "'" + dt.Rows[r][i];
}
rowRead++;
percent = ((float)(100 * rowRead)) / totalCount;
System.Windows.Forms.Application.DoEvents();
}
if (dt.Columns.Count > 1)
{
}
if (saveFilename != "")
{
try
{
workbook.Saved = true;
workbook.SaveCopyAs(saveFilename);
fileSaved = true;
}
catch (Exception ex)
{
fileSaved = false;
MessageBox.Show("导出文件时出错,文件可能正被打开!\n" + ex.Message);
}
}
else
{
fileSaved = false;
}
xlApp.Quit();
GC.Collect();// 行销毁
if (fileSaved && File.Exists(saveFilename)) System.Diagnostics.Process.Start(saveFilename);
MessageBox.Show("导出数据已成功!");
}
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