如何在DropDownList_SelectedIndexChanged事件中获取WebDataGrid单元格值？

Question

我在ASP.NET Page中有GRIDVIEW，并将其转换为infragistics webdata网格。

现在我的网格具有打开文件，复制文件，编辑文件描述，电子邮件文件和删除文件的功能。

它基于文档。

现在假设，如果我采取例如删除文件中的原始代码是：

protected void lbEmailDocument_Click(object sender, CommandEventArgs e) 

    { 

     int index = Int32.Parse(e.CommandArgument.ToString()); 

     Session["strDocumentToAttach"] = ((Label)gvDocuments.Rows[index].Cells[0].FindControl("lblPath")).Text; 

     Session["strSubject"] = "Case Document E-mail (Case # " + lblCaseNumber.Text.Trim() + ")"; 

     Session["strNote"] = "Please find the attached document " + ((Label)gvDocuments.Rows[index].Cells[0].FindControl("lblFileName")).Text; 

     ScriptManager.RegisterStartupScript(Page, this.GetType(), "myPopUp", "<script language='Javascript'>mywin=window.open('Case_Email.aspx?CaseID=" + lblCaseID.Text + "', '', 'location=0,status=0,resizable=1,scrollbars=1,height=920px, width=1250px');mywin.moveTo(0,0);</script>", false); 



     // Response.Redirect("Case_Email.aspx?CaseID=" + lblCaseID.Text); 

    } 

现在，当我改变了：与其Rows[index].Cells[0]我不能访问单元格的值。

请引导我，如何改变它。

实现由你，我给出的代码了以下错误：

Answer 1

我相信你想使用Items，而不是Cells。

此代码假定每个单元格都是模板化的。

protected void lbEmailDocument_Click(object sender, CommandEventArgs e) 

    { 

     int index = Int32.Parse(e.CommandArgument.ToString()); 

     Session["strDocumentToAttach"] = ((Label)gvDocuments.Rows[index].Items[0].FindControl("lblPath")).Text; 

     Session["strSubject"] = "Case Document E-mail (Case # " + lblCaseNumber.Text.Trim() + ")"; 

     Session["strNote"] = "Please find the attached document " + ((Label)gvDocuments.Rows[index].Items[0].FindControl("lblFileName")).Text; 

     ScriptManager.RegisterStartupScript(Page, this.GetType(), "myPopUp", "<script language='Javascript'>mywin=window.open('Case_Email.aspx?CaseID=" + lblCaseID.Text + "', '', 'location=0,status=0,resizable=1,scrollbars=1,height=920px, width=1250px');mywin.moveTo(0,0);</script>", false); 



     // Response.Redirect("Case_Email.aspx?CaseID=" + lblCaseID.Text); 

    } 

但是，如果你正在寻找的值列，那么你需要使用类似下面的代码：

protected void lbEmailDocument_Click(object sender, CommandEventArgs e) 

    { 

     int index = Int32.Parse(e.CommandArgument.ToString()); 

     Session["strDocumentToAttach"] = gvDocuments.Rows[index].Items.FindItemByKey("lblPath").Value; 

     Session["strSubject"] = "Case Document E-mail (Case # " + lblCaseNumber.Text.Trim() + ")"; 

     Session["strNote"] = "Please find the attached document " + gvDocuments.Rows[index].Items.FindItemByKey("lblFileName").Value; 

     ScriptManager.RegisterStartupScript(Page, this.GetType(), "myPopUp", "<script language='Javascript'>mywin=window.open('Case_Email.aspx?CaseID=" + lblCaseID.Text + "', '', 'location=0,status=0,resizable=1,scrollbars=1,height=920px, width=1250px');mywin.moveTo(0,0);</script>", false); 



     // Response.Redirect("Case_Email.aspx?CaseID=" + lblCaseID.Text); 

    }