c# - How to programmatically hide the keyboard -

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i have textbox button inside (telerik's radtextbox action configured). when user presses action, progress bas displayed, screen goes dark, , magic happens.

my problem since action doesn't result in textbox losing focus, on-screen keyboard not hidden, , keeps covering half screen.

i programmatically hide on-screen keyboard, don't know how.

just set focus main page:

this.focus();

this focus control doesn't use keyboard , hide keyboard. unfortunately there no api keyboard hide it.


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