How to expand combo box on focus event?

Private Sub cmbElectLoadPS_gotfocus(ByVal sender As Object, ByVal e As System. EventArgs) Handles cmbElectLoadPS. GotFocus if Not cmbElectLoadPS.

DroppedDown Then cmbElectLoadPS. DroppedDown = True End If End Sub If you need this behavior for all your combo controls is better to create your own implementation Pulic Class CustomComboBox Inherits ComboBox Protected Overrides Sub OnEnter(ByVal e As System. EventArgs) if Not DroppedDown Then DroppedDown = True End If End Sub End Class.

Oh .. add the same value to ComboBox on Mouseup event.. it would do the trick for you :) sthing like : private void comboBox1_Enter(object sender, EventArgs e) { comboBox1. DroppedDown = true; } private void comboBox1_MouseUp(object sender, MouseEventArgs e) { comboBox1. DroppedDown = true; } Not your best solution.. but it would do the trick :).

Its working, but as you said, not the best soln as its showing twice. Is there any better way? – Myth Dec 21 '09 at 6:54.

Create a timer called tmrDropDown (you should create a timer for each ComboBox) and leave its default properties. Add this code: Private Sub cmbBox_GotFocus(ByVal sender As Object, ByVal e As System. EventArgs) Handles cmbBox.

GotFocus tmrDropDown. Enabled = True End Sub And Private Sub tmrDropDown_Tick(ByVal sender As System. Object, ByVal e As System.

EventArgs) Handles tmrDropDown. Tick cmbBox. DroppedDown = True tmrDropDown.

Enabled = False End Sub.

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