should not open automatically when you move the focus to it unless its OpenDropDownOnFocus
property is set to True - please, set it to False in order to prevent it from opening when the control gets focused. If you want to open it as soon as a text is typed inside RadComboBox's TextBox you need to handle the KeyDown
event of the control and set its IsDropDownOpen
property to True:
sender, KeyEventArgs e)
var combo = sender
Please, give a try to the proposed above approaches and let us know if they worked for you.
Hopes this helps.
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