Combobox - DrawItem and dragging scroll bar problem

See more:

.NETCF

.NET

Hi there. I need some help with drawing items for a ComboBox Control.

For the most part the ComboBox draws just fine. I can scroll up and down and everything is good. The problem is when I drag the scrollbar "thumb" or box to get through the list faster. The items do not display correctly.

The ComboBox is set to DropDownList and OwnerDrawVariable.

I understand the code below is not very meaningful as I could use the windows implementation to draw the items. The program I'm working on displays certain items in bold, so the code below just illustrates the problem I have.

Thanks for your help!!

Public Class Form1<br /><br />    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click<br /><br />        Dim i As Integer<br /><br />        For i = 1 To 200<br />            ComboBox1.Items.Add(i)<br />        Next<br /><br />    End Sub<br /><br />    Private Sub ComboBox1_DrawItem(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles ComboBox1.DrawItem<br /><br />        If e.Index = -1 Then<br />            Exit Sub<br />        End If<br /><br />        e.DrawBackground()<br /><br />        e.Graphics.DrawString(ComboBox1.Items(e.Index).ToString(), e.Font, New SolidBrush(Color.Black), e.Bounds.X, e.Bounds.Y)<br /><br />    End Sub<br /><br />End Class