The default value of the .AutoPostBack property on the <ext:Button> has been changed from "true" to "false".In Visual Studio DesignMode, double clicking on the <ext:Button> will automatically wire up the "OnClick" event handler, but as with other postback enabled controls, such as <asp:TextBox>, the developer will now have to explicitly set the .AutoPostBack property to "true".The following sample demonstrates a simple <ext:Button> which post's back to the server.Example
<ext:Button ID="Button1" runat="server" Text="Submit" onclick="Button1_Click" AutoPostBack="true" />
<asp:UpdatePanel ID="UpdatePanel1" runat="server"> <Triggers> <asp:AsyncPostBackTrigger ControlID="Button1" /> </Triggers></asp:UpdatePanel> <ext:Button ID="Button1" runat="server" Text="Submit" onclick="Button1_Click" AutoPostBack="true" />
<script runat="server"> protected void Button1_Click(object sender, AjaxEventArgs e) { this.Window1.Show(); }</script> <ext:Button ID="Button2" runat="server" Text="Submit"> <AjaxEvents> <Click OnEvent="Button1_Click" /> </AjaxEvents></ext:Button>
<ext:Button ID="Button2" runat="server" Text="Submit"> <AjaxEvents> <Click OnEvent="Button1_Click" /> </AjaxEvents></ext:Button>
<ext:Button ID="Button2" runat="server" Text="Submit"> <Listeners> <Click Handler="#{Window1}.show();" /> </Listeners></ext:Button>