AJAX :: Accessing CollapsiblePanelExtender Properties In Javascript?
Feb 22, 2010
I have implemented a CollapsiblePanelExtender with a button that collapses/expands a panel. I also have a javascript function that can collapse the expanded panel when a certain condition exists somewhere else on the page.
The problem I am having is when I programatically collapse the panel, the extender is not aware, so the Collapsed property remains false and the CollapsedImage and CollapsedText are not updated. The next time I click the button, the extender is updated to a collapsed state, but nothing happens on the page because the panel was already collapsed. It is just resynchronizing the Collapsed, CollapsedImage, and CollapsedText properties to match the panel's already collapsed state.
Is there a way I can update the Collapsed, CollapsedImage, and CollapsedText properties in javascript to match the actual state of the panel?
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Mar 26, 2010
The CollapsiblePanelExtender looks like this:
<cc1:CollapsiblePanelExtender
ID="CPExtender1"
...
CollapsedImage=" [path to image] "
...
/>
I do not know how to do it this way:
<cc1:CollapsiblePanelExtender
ID="CPExtender1"
...
CollapsedImage=" [method call] "
...
/>
I have tried this:
CollapsedImage="<%# Eval( Namespace.Class.GetHelpImage() ) %>"
That DataBinding does not return the path to the image using a method call so I test the GetHelpImage() method call and learn it does not return the path as text.
I know the path to the image is correct because I can paste the text into the CollapsiblePanelExtender CollapsedImage property and the control will find and display the collapsed image.
// this method call does not return the text for a path
// so I am not even doing this correctly either.
public static string GetHelpImage()
{
return "[known path to image]";
}
// Image to test getting text from GetHelpImage() method call
<asp:Label ID="TestGetImagePathLabel" runat="server"
Text="<%# Eval( GetHelpImage() ) %>"/>
I'm doing this all wrong. Where's a blogged example of how to populate the control using an expression?
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Sep 22, 2010
I have 2 panels in my page with their height is fixed (ex : Panel1.Height = 200px, Panel2.Height = 300px)
I am using CollapsiblePanelExtender to collapse/expand the first Panel by clicking on an ImageButton.
If Panel1 is hidden, change the height of Panel2 = 300 + 200. And if Panel1 is shown, change the height of Panel2 = 300.
How I can do that ?
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Jun 9, 2010
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[URL]
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[code]....
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{
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in DotNetNuke module,i tried CollapsiblePanelExtender, it work fine with FF,it alway explan with IE?
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when i put Collapsible panel extender inside iframe(html control) i get this error: Sys.ArgumentException: Value must not be null for Controls and Behaviors. Parameter name: element iam using VS 2008
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