Button event within the update Panel is not Triggering

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Question : I Created a DropDownList, button within update Panel to display the Gridview,but my grid view is not in the update panel when is selecting the item in dropdown/clicking the button the click /index change event is not fired to display the Grid View?

This is my Design:

XML

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="probrand.aspx.cs" Inherits="probrand" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

     <asp:ScriptManager ID="ScriptManager1" runat="server" />
        <asp:UpdatePanel runat="server" id="UpdatePanel" UpdateMode="Always" >
        <Triggers>
            <asp:AsyncPostBackTrigger controlid="Btn_Grid"/>
        </Triggers>
            <ContentTemplate>
            <div>
            <table>
            <tr>
            <td><asp:DropDownList ID="ddlitems"  runat="server" AutoPostBack="true" onselectedindexchanged="ddlitems_SelectedIndexChanged" CausesValidation="false"  ></asp:DropDownList></td>
            <td><asp:Button ID="Btn_Grid" runat="server" onclick="Btn_Grid_Click" Text="Grid" CausesValidation="false"  /></td>
            </tr>
            </table>
            </div>
            </ContentTemplate>
        </asp:UpdatePanel>
       <%--  <asp:ListItem Id="DL1" Text="Lee" runat="server">
        </asp:ListItem>
        <asp:ListItem Id="DL2" Text="Levis" runat="server">
        </asp:ListItem> --%>
        <%--</asp:DropDownList> --%>
        <asp:GridView ID="GRD" runat="server" AutoGenerateColumns="false">
        <Columns>
        <asp:TemplateField HeaderText="Product_ID">
        <ItemTemplate>
        <asp:Label ID="LblProductID" runat="server" Text='<%#Eval("P_id") %>'>
        </asp:Label>
        <asp:TextBox ID="txtProductID" runat="server" Text='<%#Bind("P_id") %>' Visible="false">
        </asp:TextBox>


        </ItemTemplate>
        </asp:TemplateField>

         <asp:TemplateField HeaderText="Product_Name">
        <ItemTemplate>
        <asp:Label ID="LblProductName" runat="server" Text='<%#Bind("Product_Name") %>'>
        </asp:Label>
        <asp:TextBox ID="TxtProductName" runat="server" Text='<%#Bind("Product_Name")%>' Visible="false">
        </asp:TextBox>



        </ItemTemplate>
        </asp:TemplateField>

         <asp:TemplateField HeaderText="Price">
        <ItemTemplate>
        <asp:Label ID="LblPrice" runat="server" Text='<%#Bind("Price") %>'>
        </asp:Label>
        <asp:TextBox ID="TxtPrice" runat="server" Text='<%#Bind("Price") %>' Visible="false">
        </asp:TextBox>

        </ItemTemplate>
        </asp:TemplateField>

         <asp:TemplateField HeaderText="Brand_Name">
        <ItemTemplate>
        <asp:Label ID="LblBrandName" runat="server" Text='<%#Bind("B_Name") %>'>
        </asp:Label>
        <asp:TextBox ID="TxtBrandName" runat="server" Text='<%# Bind("B_Name") %>' Visible="false">
        </asp:TextBox>


        </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Edit">
        <ItemTemplate>
        <asp:Button ID="BtnEdit" runat="server" Text="Edit"  CommandArgument='<%# Bind("P_id") %>' OnCommand="Edit" />
        <asp:Button ID="BtnUpdate" runat="server" Text="Update" CommandArgument='<%# Bind("P_id") %>' OnCommand="Update" />
        <asp:Button ID="BtnCancel" runat="server" Text ="Cancel" CommandArgument='<%# Bind("P_id") %>' OnCommand="Cancel" />
       </ItemTemplate>
        </asp:TemplateField>


        </Columns>
   </asp:GridView>

    </div>
 </form>
</body>
</html>

Posted 10-Jul-14 3:06am

Member 10764362

Updated 10-Jul-14 3:19am

v2

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Comments

CHill60 10-Jul-14 9:07am

Don't put your question into the title, it has been truncated so we don't know what your problem is. Use the Improve Question link (appears when you hover over your post) and put the full question into the post and choose a sensible title

D C P 25-Jul-14 0:50am

Do you want to display gridview on Button Click..?

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