如何使会话Gridview可见 [英] How to make a session Gridview to make visible

问题描述

我有一个会话gridview和一个session数据表。我想在pageload本身上显示会话gridview。不会抛出任何错误或异常。但我无法看到gridview。

这是我的代码：

I have a session gridview and a session datatable. I want to display the session gridview on pageload itself. No error or exception is thrown. But I am unable to see the gridview.
Here is my code:

<asp:GridView ID="grv" runat="server"
               ShowFooter="True" AutoGenerateColumns="False"
               CellPadding="4" ForeColor="#333333"
               GridLines="None" >

protected void Page_Load(object sender, EventArgs e)
  {
DataTable tb = new DataTable();
        tb = (DataTable)Session["ss"];
        GridView gv = new GridView();
        grv = (GridView)Session["gv"];
        grv.DataSource = tb;
        grv.DataBind();
        grv.Visible = true;
   }

数据表'tb'但是有行。

The Datatable 'tb' however has rows.

推荐答案

首先创建会话，假设第一个请求你可以检查'Page.IsPostBack'属性和会话检查if（session [ss]！= null）

First create the session, suppose for the first request you can check 'Page.IsPostBack' property and for session check if(session["ss"] !=null)

protected void Page_Load(object sender, EventArgs e)
{
if(Page.Ispostback)
{
if(session["ss"]!=null && session["gv"]!=null)
{
DataTable tb = new DataTable();
tb = (DataTable)Session["ss"];
GridView gv = new GridView();
grv = (GridView)Session["gv"];
grv.DataSource = tb;
grv.DataBind();
grv.Visible = true;
}
else
Response.write("session is null");
}

经过一个小时的努力，我得到了解决方案，我拿了两页。下面是我的第一页代码背后代码。

After struggling an hour i got the solution I took two pages. below is mine firstPage code behind code.

protected void Page_LoadComplete(object sender, EventArgs e)
        {
            if (!IsPostBack)
                CreateSession();
        }
         protected void Button1_Click(object sender, EventArgs e)
         {
             Response.Redirect("TestAnything.aspx");
         }


        private void CreateSession()
        {

            DataTable tb = GetTable();
            GridView gv = new GridView();
            gv.ID = "MyGrid";
            gv.AutoGenerateColumns = true;
            Session["DataTableSession"] = tb;
            Session["MyGridinSession"] = gv;
        }

和我的第二页即TestAnything.aspx我输入以下代码< br $>

And On My secondpage i.e. TestAnything.aspx I put the following code

protected void Page_Load(object sender, EventArgs e)
 {
     if (!IsPostBack)
         AddGrid();
 }

 private void AddGrid()
 {
 GridView gv=(GridView) Session["MyGridinSession"];
 DataTable tb=(DataTable) Session["DataTableSession"];
 form1.Controls.Add(gv);
 gv.DataSource = tb;
 gv.DataBind();

 }

全部代码技巧在第二页的粗体文本中，您需要将网格控件添加到表单容器....

希望这有助于!!!

in Whole Of the code trick is in bolded text of second page that you need to add your grid control to form container....
Hope This Helps!!!

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