RadTabStrip control extends the functionality of the toolbox tabControl, so the API for looping through all the controls in a RadTabStrip is a bit different. You can find all the controls in a tab page with the TabItem.ContentPanel.Controls
property, which is a reference to the Panel control holding the controls in a tab page.
Each TabItem has a property named ContentPanel
which is the actual panel that hosts the controls added to that TabItem. To access the controls in a TabItem you can use that property.
The following sample code hides the panel hosting the controls in a TabItem:e.g. tabItem1.ContentPanel.Visible = false;ContentPanel
is inherited from the default System.Windows.Forms.Panel so it supports all of the functionality of the standard panel control.
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the Telerik team