Hey all. I did a search to see if this has already been addressed but I came back empty.

 I have a asp:panel inside of a asp:updatepanel. What I want to do is add controls to it using an async postback. The first time I press the button to add the controls, it works, but after that, nothing.

 Here is my code.

<asp:UpdatePanel RenderMode="Inline" runat='server' ID="pnlAJAX">
<ContentTemplate>
    <asp:Panel runat="server" ID="pnlAKAs" />
</ContentTemplate>
<Triggers>
    <asp:AsyncPostBackTrigger ControlID="btnAddAka" />
</Triggers>
</asp:UpdatePanel>
<br />
<asp:Button runat="server" ID="btnAddAka" Text="+" OnClick="btnAddAka_OnClick" />

    protected void btnAddAka_OnClick(object sender, EventArgs e)
    {
        AddRow();
    }

    void AddRow()
    {
        TextBox txtLastName = new TextBox();
        TextBox txtFirstName = new TextBox();
        TextBox txtMiddleName = new TextBox();

        pnlAKAs.Controls.Add(new LiteralControl("Last Name: "));
        pnlAKAs.Controls.Add(txtLastName);
        pnlAKAs.Controls.Add(new LiteralControl("First Name: "));
        pnlAKAs.Controls.Add(txtFirstName);
        pnlAKAs.Controls.Add(new LiteralControl("Middle Name: "));
        pnlAKAs.Controls.Add(txtMiddleName);
        pnlAKAs.Controls.Add(new LiteralControl("<br />"));
       
    }

Any suggestions would be greatly appreciated 

I got it to work.

 Apparently the Panel "forgets" it's old state when the page is done loading, so I had to use Session variables to perpetuate the controls it had, then add to it.

I know there is a better way, though.
 

how d u slved this plz tell me

Hey all. I did a search to see if this has already been addressed but I came back empty.

 I have a asp:panel inside of a asp:updatepanel. What I want to do is add controls to it using an async postback. The first time I press the button to add the controls, it works, but after that, nothing.

 Here is my code.

<asp:UpdatePanel RenderMode="Inline" runat='server' ID="pnlAJAX">
<ContentTemplate>
    <asp:Panel runat="server" ID="pnlAKAs" />
</ContentTemplate>
<Triggers>
    <asp:AsyncPostBackTrigger ControlID="btnAddAka" />
</Triggers>
</asp:UpdatePanel>
<br />
<asp:Button runat="server" ID="btnAddAka" Text="+" OnClick="btnAddAka_OnClick" />

    protected void btnAddAka_OnClick(object sender, EventArgs e)
    {
        AddRow();
    }

    void AddRow()
    {
        TextBox txtLastName = new TextBox();
        TextBox txtFirstName = new TextBox();
        TextBox txtMiddleName = new TextBox();

        pnlAKAs.Controls.Add(new LiteralControl("Last Name: "));
        pnlAKAs.Controls.Add(txtLastName);
        pnlAKAs.Controls.Add(new LiteralControl("First Name: "));
        pnlAKAs.Controls.Add(txtFirstName);
        pnlAKAs.Controls.Add(new LiteralControl("Middle Name: "));
        pnlAKAs.Controls.Add(txtMiddleName);
        pnlAKAs.Controls.Add(new LiteralControl("<br />"));
       
    }

Any suggestions would be greatly appreciated

I want to keep scrollbar of gridview at the bottom of the scroll bar and my gridview is filled by using timer using ajax update panel and also using  <asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick"  />  so please tell me how to maintain scrollbar positio of gridview at bottom when gridview is filled by using timer