Question

怎样在C#中把GRIDVIEW的数据导出为EXCEL

Answer 1

给你一个DataGrid的代码：
// 导出列表信息到Excel
public static void gSendGridInfoToExcel(DataGrid GridX)
{
Excel.Application excel= new Excel.ApplicationClass();
Excel._Workbook xBk = excel.Workbooks.Add(true);
Excel._Worksheet xSt = (Excel._Worksheet)xBk.ActiveSheet;
Excel.Range excelCell=null;
try
{

//赋值对象

object[] objarr;

DataTable dtTest=new DataTable();;

int i,j;

int iRows,iCows;

int iVisable;

iVisable=0;

iCows=0;

ArrayList list=new ArrayList();

//如果绑定数据源是DataTable和DataSet,取得行数

if (GridX.DataSource is System.Data.DataSet || GridX.DataSource is System.Data.DataTable)

{

dtTest=(DataTable)GridX.DataSource;

iRows=dtTest.Rows.Count;

}
else if (GridX.DataSource is System.Data.DataView)

{

DataView dvTest=(DataView)GridX.DataSource;

iRows=dvTest.Count;

dtTest=dvTest.Table;

}

//如果是集合取得行数

else

{

System.Collections.CollectionBase ColTest;

ColTest=(System.Collections.CollectionBase)GridX.DataSource;

iRows=ColTest.Count;

}
//如果有TableStyles则根据TableStyles取得(标题行)

if (GridX.TableStyles.Count>0)

{

iCows=GridX.TableStyles[0].GridColumnStyles.Count;

for(i=0;i<iCows;i++)

{

if(GridX.TableStyles[0].GridColumnStyles[i].Width>0)

{

iVisable++;

list.Add(GridX.TableStyles[0].GridColumnStyles[i].HeaderText);

}

}

objarr = new object[iVisable];

objarr=list.ToArray();

excelCell = xSt.get_Range(excel.Cells[1,1],excel.Cells[1,iVisable]);

excelCell.Value2 = objarr;

//数据行

for(i=0;i<iRows;i++)

{

objarr = new object[iVisable];

list.Clear();

for(j=0;j<iCows;j++)

{

if(GridX.TableStyles[0].GridColumnStyles[j].Width>0)

{

list.Add("'"+GridX[i,j].ToString().Replace("\
",""));

}

}

if (list.Equals(System.DBNull.Value))

{

break;

}

objarr=list.ToArray();

excelCell = xSt.get_Range(excel.Cells[i+2,1],excel.Cells[i+2,iVisable]);

excelCell.Value2 = objarr;

}

}

else

{

iCows=dtTest.Columns.Count;

for(i=0;i<iCows;i++)

{

list.Add(dtTest.Columns[i].Caption);

}

objarr = new object[iCows];

objarr=list.ToArray();

excelCell = xSt.get_Range(excel.Cells[1,1],excel.Cells[1,iCows]);

excelCell.Value2 = objarr;

//数据行

for(i=0;i<iRows;i++)

{

objarr = new object[iCows];

list.Clear();

for(j=0;j<iCows;j++)

{

list.Add("'"+GridX[i,j].ToString().Replace("\
",""));

}

if (list.Equals(System.DBNull.Value))

{

break;

}

objarr=list.ToArray();

excelCell = xSt.get_Range(excel.Cells[i+2,1],excel.Cells[i+2,iCows]);

excelCell.Value2 = objarr;

}

}

dtTest.Dispose();

excel.Visible=true;

}
catch (System.Exception e)
{

throw e;
}
finally
{

excelCell=null;

xBk=null;

xSt=null;

excel=null;

GC.Collect();
}

}

}