How To Re-Open a Disposed Tab of a TabControl in Winform C#

Altaf Ansari

I have created a huge form with large number of Controls in a TabControl having 20 Tabs.. In run time its using huge memory, and User Objects gets exceeded its limit of 10000 while opening all the tab pages. i want to dispose last used tab each time while changing the tab, but there is a problem we can't reopen a dispose tab..

2 Replies

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Kailash Polai9y ago
Hi,
Reopening disposed class not possible, But you can maintain memory issues by doing so.
First of all, move all controls from each tab to a UserControl, a UserControl for each tab or some usercontrol can be reuse for different tab if your requirement satisfies.
Load each usercontrol when user selects the tab i.e on TabControls Selected event or SelectedIndexChanged event. DO NOT Load all user controls at same time.
You may also dispose the usercontrol of the TabPage when it is hidden or not selected may be in Selected event you can check the index of the tabpage
As at a time one Tab is shown to the user, you can dispose all other usercontrols from each tab which is not shown to the user now.
Hope some percent of your issue may resolve.
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Rajkiran Swain9y ago
https://www.codeproject.com/Questions/1193361/How-to-re-open-a-disposed-tab-of-a-tabcontrol-in-w
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