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I have a text box that I want to set its focus
from inside mouse enter event.

But I failed to do that.

Please any help.

Thank you.

What I have tried:

private void InputTB_MouseEnter(object sender, EventArgs e)
  if (isRunning) return;
    Application.CurrentInputLanguage = InputLanguage.FromCulture(new CultureInfo(en_us));
    InputTB.RightToLeft = System.Windows.Forms.RightToLeft.No;
    Application.CurrentInputLanguage = InputLanguage.FromCulture(new CultureInfo(he_IL));
    InputTB.RightToLeft = System.Windows.Forms.RightToLeft.Yes;
    ActiveControl = InputTB;
    InputTB.TabIndex = 0;
Updated 1-Apr-21 5:15am

1 solution

You are using Windows forms, so I just tried it: two text boxes, both handled by the same event handler:
private void MyTextBoxes_MouseEnter(object sender, EventArgs e)
    if (sender is TextBox tb)
And sure enough, it works: as the mouse moves between them, so does the input focus.

I'd suggest you use the debugger to see if isRunning is set when you don't think it should be.
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Member 13569650 1-Apr-21 12:00pm    
Thank you.

You have helped me indirectly.

Thank you very much.
OriginalGriff 1-Apr-21 12:54pm    
You're welcome!

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