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Posted 30 May 2010

TIP: Change background of WPF Combobox

, 6 Nov 2012
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How to change the popup zone of a WPF Combobox programmatically without restyling
The Background property will just change the edit and drop arrow area of a WPF Combobox.
To change other colors like popup background and highlight color, you have to add some brushes to the resource dictionary, mapping to the system colors:
var combo = new Combobox(); 
combo.Background = Brushes.Yellow;
combo.Foreground = Brushes.Blue;
combo.Resources.Add(SystemColors.WindowBrushKey, Brushes.Yellow);
combo.Resources.Add(SystemColors.HighlightBrushKey, Brushes.Red);
This is equivalent to XAML code:
<Combobox Background="Yellow" Foreground="Blue">
      <SolidColorBrush x:Key="{x:Static SystemColors.WindowBrushKey}" Color="Yellow" />
      <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Red" />


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Jaime Olivares
Peru Peru

Computer Electronics professional, Software Architect and senior Windows C++ and C# developer with experience in many other programming languages, platforms and application areas including communications, simulation systems, PACS/DICOM (radiology), GIS, 3D graphics and HTML5-based web applications.
Currently intensively working with Visual Studio and TFS.

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Comments and Discussions

QuestionSetting Disabled Background Color Pin
Jacquers5-May-16 3:48
memberJacquers5-May-16 3:48 
GeneralAnd how can i change only the edit part of the Combobox?I t... Pin
Michael Golombiewski20-Jan-12 7:06
memberMichael Golombiewski20-Jan-12 7:06 
GeneralRe: I solved it: TextBox txtbx = (TextBox)comboBox1.Template.Fin... Pin
Michael Golombiewski22-Jan-12 10:41
memberMichael Golombiewski22-Jan-12 10:41 
GeneralRe: I solved it:TextBox txtbx = (TextBox)comboBox1.Template.Fin... Pin
yalenap12-Feb-14 13:23
memberyalenap12-Feb-14 13:23 
GeneralReason for my vote of 1 Bad Pin
gusbrasil10-Aug-10 6:06
membergusbrasil10-Aug-10 6:06 

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