xamarin.ios - Modify the Frame of UIButton -

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I am trying to resize a UIButton referenced from the xib file.

This is what I have tried without success: 

  RectangleF frames = actionBtn.Frame; Frame With = 140; Action btn.fr = frames;

What am I doing?

You can not modify an existing RectangleF instead try it 

  RectangleF frame = actionBtn.Frame; Action BTN.frame = new rectangle (frame.x, frameY, 140, frame.height);

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