You can perform expand and collapse in WebExplorerPane. Simply click on the Up/Down arrow at the right most part of ExplorerPane header to Expand and Collapse the ExplorerPane.

In this topic, you will learn how to enable expand/collapse from client-side.

To enable expand/collapse

Drag a HTML button control to the WebForm.

Create ExpandPane() function to implement expand and collapse pane.

JavaScript

Copy Code

function ExpandPane(paneId, buttonId) 
{
   var expPane = ISGetObject("WebExplorerPane1");
   var button = ISGetObject(buttonId);
   var pane = expPane.Panes.GetNamedItem(paneId);

   if (pane.Collapse) 
   {
      pane.DoExpand();     
   }
   else 
   {
      pane.DoCollapse();
   }
}

Trigger ExpandPane() using onclick on HTML button.

<input ID="Button1" type="button" value="button" onclick="ExpandPane('barPictureTasks', 'Button1')"/>
Run the project.

Intersoft WebDesktop Documentation
How-to: Enable Expand/Collapse
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