ASP.NET Splitter - Collapsed panel after postback

Click on the arrow of the splitter separator.
The left panel of the splitter will collapse.
Postback using the "Postback" button. The left panel will remain collapsed.
Click again to expand the left panel back.





The feature also works in horizontal splitter.

Example code

    <obspl:Splitter CollapsePanel="left" id="spl1" runat="server" StyleFolder="styles/default">
        <LeftPanel>
            <Content>
                ... Left Panel content here ...
    ...

VB.NET
spl1.CollapsePanel = VerticalCollapsePanelType.left


C#
spl1.CollapsePanel = VerticalCollapsePanelType.right;


JavaScript
spl1.CollapsePanel("left");
spl1.ExpandPanel("right");

"Perfect! Honestly, you guys make me look brilliant. Your components offer a dynamic, and professionally designed experience for my users. The TreeView has been invaluable to me, huge datasets and enormous hierarchies are a snap. However, when you first introduced the CALLBACK, you rocked my world! Having moved from desktop to web applications, I missed the functionality I used to have. You gave it back - thank you. I can't tell you the number of times I've been asked "How'd you do that?" (even from our tech support and contractors)."

John Cappelletti

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