Dropdown inside Gridview

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Hi,
I am using dropdown inside gridview. The dropdown shows item list.
Here I want on selection of item name label display rate for that item.
Please let me know if I need to bind rate label with database actually i have bind dropdown and label both by database then gridview display all item name in dropdown and rate in label but i want when user select item name from dropdown then label rate display respected item rate.

my aspx page is.

XML

 <asp:GridView ID="grd1" runat="server" DataSourceID="SqlDataSource1"
     AutoGenerateColumns="False" DataKeyNames="Product_Id" OnRowDataBound="grd1_RowDataBound">
     <Columns>
         <asp:TemplateField HeaderText="Product_Name" SortExpression="Product_Name">
             <ItemTemplate>
                 <asp:DropDownList ID="DropDownList1" AutoPostBack="true" runat="server" DataSourceID="SqlDataSource2"
                     DataTextField="Product_Name" Width="100px" DataValueField="Product_Id" AppendDataBoundItems="true" SelectedValue='<%# Bind("Product_ID") %>'>
                 </asp:DropDownList>
             </ItemTemplate>
         </asp:TemplateField>
         <asp:BoundField DataField="Product_Rate" SortExpression="Product_Rate" HeaderText="Product_Rate"/>
         <asp:TemplateField HeaderText="Product_Quantity" SortExpression="Product_Quantity">
         <EditItemTemplate>
         <asp:TextBox ID="txtQty" runat="server"/>
         </EditItemTemplate>
         </asp:TemplateField>
         <asp:TemplateField HeaderText="Product_Amount" SortExpression="Product_Amount">
         <ItemTemplate>
         <asp:Label ID="lblAmount" runat="server" />
         </ItemTemplate>
         </asp:TemplateField>
     </Columns>
 </asp:GridView>
 <asp:SqlDataSource ID="SqlDataSource1" runat="server"
     ConnectionString="<%$ ConnectionStrings:chalk_hillConnectionString %>"
     SelectCommand="SELECT [Product_Id],[Product_Name], [Product_Rate]  FROM [Product_Detail]">
 </asp:SqlDataSource>
         <asp:SqlDataSource ID="SqlDataSource2" runat="server"
     ConnectionString="<%$ ConnectionStrings:chalk_hillConnectionString %>"
     SelectCommand="SELECT [Product_Id],[Product_Name] FROM [Product_Detail]">
 </asp:SqlDataSource>
 <tr><td align="center">
  <asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClick="Submit"/>
  <asp:Button ID="Button1" runat="server" Text="Clear" OnClick="Clear"/>
  </td></tr>
 </table>
</center>

Posted 25-Oct-10 19:06pm

call to .net

Updated 25-Oct-10 19:18pm

Ankur^\m/

v2

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chandrashekhar racharla · Answer 1 · 2010-10-25T19:20:00

<div width="" height=""><pre lang="xml"><asp:GridView ID="grd1" runat="server" DataSourceID="SqlDataSource1"
AutoGenerateColumns="False" DataKeyNames="Product_Id" OnRowDataBound="grd1_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="Product_Name" SortExpression="Product_Name">
<ItemTemplate>
<asp:DropDownList ID="DropDownList1" AutoPostBack="true" runat="server" DataSourceID="SqlDataSource2"
DataTextField="Product_Name" Width="100px" DataValueField="Product_Id" AppendDataBoundItems="true" SelectedValue='<%# Bind("Product_ID") %>'>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Product_Rate" SortExpression="Product_Rate" HeaderText="Product_Rate"/>
<asp:TemplateField HeaderText="Product_Quantity" SortExpression="Product_Quantity">
<EditItemTemplate>
<asp:TextBox ID="txtQty" runat="server"/>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Product_Amount" SortExpression="Product_Amount">
<ItemTemplate>
<asp:Label ID="lblAmount" runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView</pre>
></div>

then private void dgvData_CellMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
}

in this event write the code block