C# winform 中如何导入Excel

Question

如题所述

Answer 1

你是要从excel中导入数据到winform吗？如果是这样，可以这样：引用office11.0组件后， Microsoft.Office.Interop.Excel.Application application; //这是一个客户端
Microsoft.Office.Interop.Excel.Workbooks workbooks; //所有工作薄
Microsoft.Office.Interop.Excel.Worksheet worksheet;//工作表
Microsoft.Office.Interop.Excel.Workbook workbook; //所用到的工作表 void IsRunEX(){ OpenFileDialog openfilediaglog = new OpenFileDialog();
openfilediaglog.Filter = "xls文件|*.xls";
if (openfilediaglog.ShowDialog() == DialogResult.OK)
{
FieldName = openfilediaglog.FileName;
application = new Microsoft.Office.Interop.Excel.Application();
workbooks = application.Workbooks;
workbook = returnworkbook(FieldName, workbooks);
worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Sheets[1]; //选择第一个表
Range range = worksheet.Cells[1, 8] as Range; //这是选择第一行第八列的内容
Range rangee = worksheet.Cells[1, 9] as Range; //这是第一行到九列的内容 string str1=range.Value2.ToString(); string str2=ragee.Value2.ToString(); ................... //你所要做的操作 .................. workbook.Close(Type.Missing, FieldName, Type.Missing);
workbooks.Close(); //退出关闭资源
application.Quit();
}
} private Workbook returnworkbook(string filename,Workbooks works) //这里是打一开一个工作表
{
Microsoft.Office.Interop.Excel.Workbook wk=works.Open(
filename, Type.Missing, Type.Missing,
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,
Type.Missing, Type.Missing);
return wk;
}

Answer 2

准确说是把DataTable导出Excel：通用算法：public static void ExportExcel(DataTable eDataTable)
{
try
{
Excel.ApplicationClass ExcelApp;
ExcelApp = new Excel.ApplicationClass();
Excel.Workbook ExcelBook = ExcelApp.Workbooks.Add(1);
Excel.Worksheet ExcelSheet = (Excel.Worksheet)ExcelBook.Worksheets[1];

ExcelApp.Visible = true;

//写列标题
for (int i = 0; i < eDataTable.Columns.Count; i++)
{
ExcelSheet.Cells[1, i + 1] = eDataTable.Columns[i].ColumnName;
}

//写值
for (int r = 0; r < eDataTable.Rows.Count; r++)
{
for (int i = 0; i < eDataTable.Columns.Count; i++)
{
ExcelSheet.Cells[r + 2, i + 1] = eDataTable.Rows[r][i];
}
}

}
catch (Exception ex)
{
ErrLog.ExcelErr(ex.ToString());
}
finally
{
GC.Collect();
}
}