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<TD CLASS="runninghead" nowrap>Vertragsverwaltung-Klassenbibliothek</TD>
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<H1 class="dtH1"><A NAME="topic_0000000000000C3C"></A>ComboBoxTreeClass.OnDrawItem -Methode</H1>
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<DIV id="nstext" valign="bottom"><!---->
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<PRE class="syntax"><SPAN class="lang">[Visual Basic]
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</SPAN><B>Protected Overrides Sub OnDrawItem( _ <br> ByVal <i>e</i> As <a href="ms-help://MS.NETFrameworkSDKv1.1/cpref/html/frlrfSystemWindowsFormsDrawItemEventArgsClassTopic.htm">DrawItemEventArgs</a> _ <br>)</B></PRE>
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<H4 class="dtH4">Parameter</H4>
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<dl>
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<dt><i>e</i></dt>
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<dd></dd>
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</dl>
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<H4 class="dtH4">Quellcode</H4>
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<pre class="code"><SPAN class="lang">[Visual Basic]</SPAN>
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Protected Overrides Sub OnDrawItem(ByVal e As System.Windows.Forms.DrawItemEventArgs) <br> If e.Index = -1 Then Return <br> <br> ' Draw only the combo edit box <br> If (e.State And DrawItemState.ComboBoxEdit) <> DrawItemState.ComboBoxEdit Then Return <br> <br> Dim ComboBoxSelection As TreeNodeEx <br> <br> Try <br> ComboBoxSelection = CType(Me.Items(e.Index), TreeNodeEx) <br> <br> e.DrawFocusRectangle() <br> e.DrawBackground() <br> <br> Dim TextLeft As Integer = e.Bounds.Left <br> <br> If Not Me.TreeView.ImageList Is Nothing Then <br> Dim ImageIndex As Integer = ComboBoxSelection.TreeNode.SelectedImageIndex <br> If ImageIndex < 0 Then ImageIndex = Me.TreeView.SelectedImageIndex <br> If ImageIndex >= 0 Then <br> Dim IconRectangle As Rectangle <br> <br> If Me.TreeView.ImageList.ImageSize.Height > Me.ItemHeight Then <br> IconRectangle = New Rectangle(e.Bounds.Left + 2, e.Bounds.Top, Me.ItemHeight, Me.ItemHeight) <br> Else <br> IconRectangle = New Rectangle(New Point(e.Bounds.Left + 2, e.Bounds.Top), Me.TreeView.ImageList.ImageSize) <br> End If <br> <br> Me.TreeView.ImageList.Draw(e.Graphics, IconRectangle.Left, IconRectangle.Top, IconRectangle.Width, IconRectangle.Height, ImageIndex) <br> TextLeft = TextLeft + IconRectangle.Width + 2 <br> <br> IconRectangle = Nothing <br> End If <br> End If <br> <br> e.Graphics.DrawString(ComboBoxSelection.TreeNode.Text, Me.Font, New SolidBrush(e.ForeColor), TextLeft, e.Bounds.Top + 2) <br> Catch ex As Exception <br> Throw ex <br> Finally <br> ComboBoxSelection = Nothing <br> MyBase.OnDrawItem(e) <br> End Try <br> End Sub
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</pre>
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<H4 class="dtH4">Forderungen</H4>
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<P><b class="le">Plattformen: </b>Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition</P>
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<H4 class="dtH4">Siehe auch</H4>
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<p>
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<a href="topic_0000000000000C2E.html">ComboBoxTreeClass</a>
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