Hi LINSON THOMACHAN,
Thank you for contacting us. We have the same method in the RadListBox.Items collection
This method accepts a RadListBoxItem instance. If you want to check whether an item has the text that you are looking for, you should create your own method that checks whether the collection contains an item with this text. I hope this will help you.
If you have additional questions, feel free to ask.
the Telerik team
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