Find Control in asp:repeater on button click event
<p>I have a dropdown list inside a asp:repeater item template.
how can I get its value on button click event.</p>

<pre><code>&lt;asp:Repeater runat="server" ID="WorkflowListAfter" onitemcreated="WorkflowListAfterItemCreated"&gt;
    &lt;ItemTemplate&gt;
         &lt;asp:DropDownList ID="ddlWorkflowMembers" runat="server" DataTextField="MemberName" DataValueField="MemberID"&gt;
    &lt;/ItemTemplate&gt;
&lt;/asp:Repeater&gt;

protected DropDownList ddlWorkflowMembers = new DropDownList();
protected void WorkflowListAfterItemCreated(object sender, RepeaterItemEventArgs e)
{
    ddlWorkflowMembers = (DropDownList) e.Item.FindControl("ddlWorkflowMembers");
}
protected void BtnSaveClick(object sender, EventArgs e) {
    if (ddlWorkflowMembers.SelectedItem == null) return;
}
</code></pre>

<p>the code above is working at first time but after postback ddlWorkflowMembers is always null expersion.</p>
