Question

I have a DropDownList which is populated using a sqldatasource, i.e., from database and their is a grid view which is populated with another sqldatasource connected to using the value of dropdownlist.

But it does not execute the query dynamically. I want that whenever the value of dropdownlist changes, the grid view should update.
Code please..

Answer 1

ASPX code

<asp:DropDownList id="ddlCountry" AutoPostBack="True" runat="server" OnSelectedIndexChanged="ddlCountry_SelectedIndexChanged" ></asp:DropDownList> 

And CS code

protected void ddlCountry_SelectedIndexChanged(object sender, EventArgs e)
{
  FillYourGridviewHere();
}