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[CLOSED] Defaults cannot be overridden

  1. #1
    May 10, 2012, 6:37 PM

    [CLOSED] Defaults cannot be overridden

    Sorry if the title isn't most accurate!

    Basically I am trying the following border layout with defaults for split and collapsible on most regions. Then on the center region, I explicitly set those values to false:

    <%@ Page Language="C#" %>
<!DOCTYPE html>
<html>
    <head>
        <title>Border Layout Example</title>
    </head>
    <body>
        <ext:ResourceManager runat="server" Theme="Gray" />

        <ext:Window runat="server" Layout="Border" Height="200" Width="400" Border="False">
            <Defaults>
                <ext:Parameter Name="split" Value="true" />
                <ext:Parameter Name="collapsible" Value="true" />
            </Defaults>
            <Items>
                <ext:Panel region="West" runat="server" Title="West" Width="100" Weight="10" />
                <ext:Panel region="Center" Split="False" Collapsible="False" Title="Center" runat="server" />
                <ext:Panel region="South" runat="server" Title="South" Height="100" />
            </Items>
        </ext:Window>
    </body>
</html>
    Notice the Center region will have a collapsible tool when it should not. Looking at the generated JavaScript the center region overrides are not being created:

    Ext.create("Ext.window.Window", {
    border: false,
    height: 200,
    hidden: false,
    renderTo: Ext.getBody(),
    width: 400,
    defaults: {
        "split": true,
        "collapsible": true
    },
    items: [{
        width: 100,
        region: "west",
        weight: 10,
        title: "West"
    }, {
        region: "center",
        title: "Center"
    }, {
        height: 100,
        region: "south",
        title: "South"
    }],
    layout: "border"
});
    If I modify the JavaScript directly to add the split: true and collapsible: true to the center region and run it in firebug then it works as expected. If this is possible to fix, that would be great.

    Thanks!
    Last edited by Daniil; May 10, 2012 at 7:35 PM. Reason: [CLOSED]
  2. #2
    May 10, 2012, 7:11 PM
    In markup you can use
    XCollapsible="False"
    X prefix for standard properties forces value rendering (even default)

    For code behind you have to use CustomConfig
  3. #3
    May 10, 2012, 7:28 PM
    Vladimir, many thanks for such a swift response! Much appreciated.

    The suggestion works nicely. Using CustomConfig from code behind makes sense, as it is then just sent down as a regular custom property. I didn't realize the "X" trick via Markup. Neat trick!

    I also just checked, CustomConfig can also be used from markup:

    <ext:Panel region="Center" Title="Center" runat="server">
    <CustomConfig>
        <ext:ConfigItem Name="split" Value="false" Mode="Raw" />
        <ext:ConfigItem Name="collapsible" Value="false" Mode="Raw" />
    </CustomConfig>
</ext:Panel>
    The above seems to work quite nicely too. "X" is probably a lot terser which is nice, and I will try to remember that, while the above is kind of symmetrical with the code-behind (by definition I guess!)

    Still the "X" for standard properties is nice. I will see if I can incorporate that into the book somehow...

    Thanks!
  4. #4
    May 10, 2012, 7:35 PM
    In addition (though, I think, you know it) - declaring any non-existing properties in markup are considered as custom config options.

    Example
    <ext:Panel runat="server" MyProperty="Hello!">
    will produce
    {
    myProperty : 'Hello!' //with the lowercase first letter
}
  5. #5
    May 11, 2012, 9:27 AM
    Hey, I didn't know that... that's great! (Though unfortunately in my production code so much of it is typically done in code-behind - especially the parts where this could come in use! Anyway, good to know!)

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