在另一页上检索datagrid的值 [英] Retrieving values of datagrid on another page

问题描述

我正在尝试将值从一页的gridView传递到另一页的文本框
我写了以下代码
第一页:

I am trying to pass values from gridView of one page to a textbox of another page
I have written following code
On first page:

foreach (GridViewRow row in dgvSearchResults.Rows)
       {
           string name = row.Cells[1].Text;
           string time = row.Cells[2].Text;
           Response.Redirect("EmpDetails.aspx?name=" + name.ToString());
       }

在第二页上:

on second page:

this.txtPatientName.Text = Request.QueryString["name"].ToString();

当我尝试执行此操作时，出现以下错误:

When I am trying this to do,I am getting following error:

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. 
Source Error:
Line 108:     protected void Page_Load(object sender, EventArgs e)
Line 109:     {
Line 110:         this.txtName.Text = Request.QueryString["name"].ToString();
Line 111:     }
Line 112: }

问题出在哪里?

Where is the problem?
What should i need to do to solve this?

推荐答案

在第二页上尝试以下代码:

Try this code on second page:

if (Request.QueryString["name"]!=null && !string.IsNullOrEmpty(Request.QueryString["name"].ToString()))
{
    this.txtName.Text = Request.QueryString["name"].ToString();
}

否则，请在此处浏览一下 [

Or else have a look here[^]

您可以使用跨页发布来访问另一个数据库中的DataGrid值页.看看:
msdn.microsoft.com/en-us/library/ms178139.aspx

You can use Cross-Page Posting to access DataGrid value in another page. Have a look:
msdn.microsoft.com/en-us/library/ms178139.aspx

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