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[OPEN] [#1612] gh1567 override causes an exception if a checkbox is show()n before it's rendered

  1. #1

    [OPEN] [#1612] gh1567 override causes an exception if a checkbox is show()n before it's rendered

    Ext.Net version: 4.7.1

    Hello,

    This is a follow-up to https://forums.ext.net/showthread.php?62155. We just upgraded to 4.7.1 to receive the official fix, but we discovered an issue.

    If you have a hidden window with a checkbox, and you show() that checkbox before show()ing the window, an exception is thrown (and the window will remain hidden). Here's a repro:

    <%@ Page Language="C#"  %>
    <%@ Register assembly="Ext.Net" namespace="Ext.Net" tagPrefix="ext" %>
    
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
        <title></title>
    </head>
    <body>
    <form id="form1" runat="server">
        <ext:ResourceManager runat="server" ScriptMode="Debug" />
        <ext:Viewport runat="server">
            <Items>
                <ext:Window runat="server" ID="TestWindow" Hidden="true">
                    <Items>
                        <ext:Checkbox runat="server" ID="TestBox" FieldLabel="I am a checkbox" />
                    </Items>
                </ext:Window>
                <ext:Button runat="server" Text="Open window"
                            OnClientClick="#{TestBox}.setVisible('some condition' !== false); #{TestWindow}.show();"/>
            </Items>
        </ext:Viewport>
    </form>
    </body>
    </html>
    If you click the button you will get an Uncaught TypeError: Cannot read property 'setStyle' of undefined.

    The exception is thrown from the gh1567 override in the following line:
    me.innerWrapEl.setStyle('display', undefined);
    me is the checkbox, and me.innerWrapEl is undefined (presumably because the checkbox hasn't been rendered yet).

    Best regards,
    Raphael
  2. #2
    Hello, @ilogsdev02!

    Thanks for the report and easily reproducible test case!

    We've logged the issue after #1612 in github and will post an update here as soon as we get the fix merged to the code.
    Fabrício Murta
    Developer & Support Expert

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