Question

I am looking into using only a ddl to run my query, not a ddl and a Button_Click function. I am yet to find what to do. How do I do this?

Answer 1

In your as(p/c)x:

<asp:DropDownList runat='server'                    id='ddl'                   OnSelectedIndexChanged='SelectionChanged'                   AutoPostBack='true'>     <asp:ListItem Text='Page 1' Value='/page1.aspx' />     <asp:ListItem Text='Page 2' Value='/page2.aspx' /> </asp:DropDownList> 

The ‘AutoPostBack’ property tells ASP.NET to wire up a client-side (javascript) command that submits the form as soon as the drop down list changes, instead of waiting for a button click.

And in your codebehind, the event handler we referenced in the ‘OnSelectedIndexChanged’ property will get fired:

protected void SelectionChanged(object sender, EventArgs e) {     Response.Redirect(((DropDownList)sender).SelectedValue); }