C#將Sql數(shù)據(jù)保存到Excel文件中
發(fā)布日期:2022/10/31 12:38:37 瀏覽量:
public string ExportExcel( DataSet ds,string saveFileName)
{
try
{
if (ds == null)
return "數(shù)據(jù)庫為空";
bool fileSaved = false;
Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
if (xlApp == null)
{
return "無法創(chuàng)建Excel對象,可能您的機子未安裝Excel";
}
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
//寫入字段
for (int i = 0; i < ds.Tables[0].Columns.Count; i++)
{
worksheet.Cells[1, i + 1] = ds.Tables[0].Columns[i].ColumnName;
}
//寫入數(shù)值
for (int r = 0; r < ds.Tables[0].Rows.Count; r++)
{
for (int i = 0; i < ds.Tables[0].Columns.Count; i++)
{
worksheet.Cells[r + 2, i + 1] = ds.Tables[0].Rows[r][i];
}
System.Windows.Forms.Application.DoEvents();
}
worksheet.Columns.EntireColumn.AutoFit();//列寬自適應(yīng)。
if (saveFileName != "")
{
try
{
workbook.Saved = true;
workbook.SaveCopyAs(saveFileName);
fileSaved = true;
}
catch (Exception ex)
{
fileSaved = false;
MessageBox.Show("導(dǎo)出文件時出錯,文件可能正被打開!\n" + ex.Message);
}
}
else
{
fileSaved = false;
}
xlApp.Quit();
GC.Collect();//強行銷毀
if (fileSaved && System.IO.File.Exists(saveFileName)) System.Diagnostics.Process.Start(saveFileName); //打開EXCEL
return "成功保存到Excel";
}
catch (Exception ex)
{
return ex.ToString();
}
}
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