In general you don’t have any control on a ComboBox’s Height property, because it is determined automatically by VB depending on the font used for the ComboBox control. If you have a form that contains both TextBox and ComboBox controls, you should ensure that all your single-line TextBox controls are as tall as the ComboBox controls on the same form. The following routine can help you quickly set the Height property of all the single-line TextBox controls on a form:

' change the height of all the single-line TextBox in a formSub SetTextboxHeight(frm As Form, ByVal Height As Single)    Dim ctrl As Control        For Each ctrl In frm.Controls        If TypeOf ctrl Is TextBox Then            If ctrl.MultiLine = False Then                ctrl.Height = Height            End If        End If    NextEnd Sub

For example, if you have a Combo1 control on the Form1 form, you can ensure that all the TextBox control on that form are as tall as the ComboBox control with this line of code:

Private Sub Form_Load()    SetTextboxHeight Me, Combo1.HeightEnd Sub