将DataGrid中CheckBox被选择的行存储到EXcl文件中

#region 獲得要輸出的Excel表 ExcelTable
private DataTable ExcelTable()
{
DataTable newTable = new DataTable();
newTable.Columns.Add(new DataColumn("編號",typeof(string)));
newTable.Columns.Add(new DataColumn("詞目",typeof(string)));
newTable.Columns.Add(new DataColumn("主類目",typeof(string)));
newTable.Columns.Add(new DataColumn("次類目",typeof(string)));
newTable.Columns.Add(new DataColumn("撰稿者",typeof(string)));
newTable.Columns.Add(new DataColumn("附加檔案",typeof(string)));
for(int i=0;i<this.DataGrid1.Items.Count;i++)
{
if(((CheckBox)this.DataGrid1.Items[i].FindControl("oncheck")).Checked)
{
DataRow Dr = newTable.NewRow();
Dr["編號"] = this.DataGrid1.Items[i].Cells[1].Text;
Dr["詞目"] =this.DataGrid1.Items[i].Cells[7].Text;
Dr["主類目"] = this.DataGrid1.Items[i].Cells[3].Text;
Dr["次類目"] = this.DataGrid1.Items[i].Cells[4].Text;
Dr["撰稿者"] = this.DataGrid1.Items[i].Cells[5].Text;
if(this.DataGrid1.Items[i].Cells[8].Text.Trim()!="")
Dr["附加檔案"] = "有附件";
newTable.Rows.Add(Dr);
}
}
return newTable;
}
#endregion

#region 輸出DataTable到Excel表 ToExcel
private void ToExcel(DataTable outTable)
{
Response.Clear();
Response.Buffer= true;
Response.Charset="GB2312";
Response.AppendHeader("Content-Disposition","attachment;filename=FileName.xls");
Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");
Response.ContentType = "application/ms-excel";
this.EnableViewState = false;
System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("zh-tw",true);
System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad);
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
//this.DataGrid1.RenderControl(oHtmlTextWriter);
DataGrid dg = new DataGrid();
dg.DataSource = outTable;
dg.DataBind();
dg.RenderControl(oHtmlTextWriter);
Response.Write(oStringWriter.ToString());
Response.End();
}
#endregion

#region 輸出指定的內容到Excel表
private void OutputExal_Click(object sender, System.EventArgs e)
{
this.ToExcel(this.ExcelTable());
}
#endregion