多个表 导出EXCEL 代码 （分享）
chinachen
·
2010-02-25
·
via 博客园 - chinachen
多个表 导出EXCEL
public void ExportExcel(DataSet dsExcel)
{
DataSet ds
= dsExcel;
if (ds == null) return;string saveFileName = "";
bool fileSaved = false;
SaveFileDialog saveDialog = new SaveFileDialog();
saveDialog.DefaultExt = "xls";
saveDialog.Filter = "Excel文件|*.xls";
saveDialog.FileName = "招生数据备份";
saveDialog.ShowDialog();
saveFileName = saveDialog.FileName;
if (saveFileName.IndexOf(":") < 0) return; //被点了取消
Excel.Application xlApp = new Excel.Application();if (xlApp == null)
{
MessageBox.Show("无法创建Excel对象，可能您的机子未安装Excel");
return;
} Excel.Workbooks workbooks
= xlApp.Workbooks;
string[] tableName ={ "TB_Dic_ExamArea","TB_Dic_ExamArea_SpecialityKinds","TB_Dic_ExamRoom","TB_Dic_SpecialityFocus","TB_ExamAchievement","TB_SignUpStudents","TB_SignUpStudentsFamilyMember","TB_SignUpStudentsPayFee","TB_SignUpStudentsResume","TB_SignUpStudentsSpeciality","TB_SystemInfo","TB_Users"}; Excel.Workbook workbook
= workbooks.Add(Excel.XlWBATemplate.xlWBATWorksheet);
for (int a = 0; a < 12; a++)
{
Excel.Worksheet newWorksheet;
newWorksheet = (Excel.Worksheet)workbook.Worksheets.Add(System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value);
newWorksheet.Name = tableName[11-a];
}
//
proValue = 0;
for (int b = 0; b < 12; b++)
{ Excel.Worksheet worksheet
= (Excel.Worksheet)workbook.Worksheets[b+1];//取得sheet1
//写入字段
int cellNum = ds.Tables[b].Columns.Count;
for (int i = 0; i < cellNum; i++)
{
worksheet.Cells[1, i + 1] = ds.Tables[b].Columns[i].ColumnName; worksheet.get_Range(worksheet.Cells[
1, 1 + i], worksheet.Cells[1 + ds.Tables[b].Rows.Count, 1 + i]).NumberFormatLocal = "@";
}
//写入数值
int rowNum = ds.Tables[b].Rows.Count;
for (int r = 0; r < rowNum; r++)
{
for (int i = 0; i < cellNum; i++)
{
worksheet.Cells[r + 2, i + 1] = ds.Tables[b].Rows[r][i].ToString();
}
System.Windows.Forms.Application.DoEvents();
}
Excel.Range rg = worksheet.get_Range(worksheet.Cells[2, 2], worksheet.Cells[ds.Tables[b].Rows.Count + 1, 2]);
rg.NumberFormat = "00000000";
proValue++;
progressBar1.PerformStep();
}
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();//强行销毁
if (fileSaved && System.IO.File.Exists(saveFileName)) System.Diagnostics.Process.Start(saveFileName); //打开EXCEL
progressBar1.Value = 0;
}
代码
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