Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I want to customize ComboBox's dropdown items' selection style, like the blue selection rect below:.
This will copy the default template of the ComboBoxItem containers into your XAML markup and you can then edit it as per your requirements. Look for the resources with the x:Keys ComboBoxItem. BackgroundComboBoxItem. Background and change the colour of these. There is no property of the ComboBox that you can simply set to change the selection colour on Windows 8 and later. Learn more. WPF : how to customize ComboBox's dropdown list selecting item style? Ask Question.
Asked 2 years, 10 months ago. Active 2 years, 10 months ago. Viewed 1k times. I want to customize ComboBox's dropdown items' selection style, like the blue selection rect below: but I can't find what kind of style is controlling this item. Oh My Dog.
ASh no it's not work. IsMouseOver will effect on item itself, but mouse-hover style for listing item still exists. Active Oldest Votes. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.
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Community and Moderator guidelines for escalating issues via new response…. Feedback on Q2 Community Roadmap. Technical site integration observational experiment live on Stack Overflow. Dark Mode Beta - help us root out low-contrast and un-converted bits.The ComboBoxEdit control is a dropdown list that supports various operation modes. The editor can load values for its dropdown list from a data field. The actual edit value usually, ID is fetched from a different field.
PopupWidth and PopupBaseEdit. PopupHeight properties. ShowSizeGrip property to true. The size grip allows end-users to change the dropdown size at runtime.
ItemTemplate property to specify the item template. Token and CheckedToken operation modes are inspired by modern mail-clients. These modes support multiple items selection.
ComboBoxEdit can be used standalone or as an in-place editor nested in a container control. The ComboBoxEditSettings class implements the in-place editing functionality. See In-place Editors to learn more. The BaseEdit. EditValueChanged event occurs when the editor's edit value is changed. Handle the LookUpEditBase. PopupContentSelectionChanged event if you need to perform custom actions when another item within the editor's dropdown is selected highlighted. All docs. General Information.
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Controls WinForms. UWP Windows Tools WinForms Skin Editor. WPF Theme Designer. Coded UI Test Extension. Frameworks and Libraries. XPO Profiler. Core Libraries. Controls and Extensions ASP. NET Core Controls.This is because the default template for the ComboBox control differs between the different versions of Windows.
To be able to change the background colour of a ComboBox in a WPF application running on Windows 8, you have to modify its default control template. You could either replace this resource with your own Brush resource:. If you want to change the colour that appears when the mouse pointer is located over a ComboBoxItem you will have to change its default template in the same way that you change the default template for the ComboBox itself. Resources, Application. Resources or a custom ResourceDictionary.
Then it is simply a matter of finding and changing the value of the Color property of the following SolidColorBrush resources:. There are also a bunch of other resources that is used within the ControlTemplate of a ComboBoxItem that you can modify as you wish.
The colours of the currently selected item is for example define by the following resources, all having an x:Key attribute value that starts with ComboBoxItem. Note that if you copy and modify the default ItemContainerStyle according to the procedure mentioned above, you should not define your own inline ItemContainerStyle for the ComboBox.
Instead of doing this, you could just set the values of the Background and BorderBrush properties inside the style resource:. Note that the built-in templates use different resources depending on the current values of various properties. Triggers and MultiDataTriggers in the control template of a control decide which resources that are applied and under which conditions they are applied.
Thank you! I regret this is a mess. So many missing details I cannot figure out. Which having fixed the errors, I tested and found I still could not set the background.
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You are commenting using your Facebook account. Notify me of new comments via email. Magnus Montin. Search for:. Viktor says:. May 23, at Alex says:. August 12, at April 9, at Metal Mario says:. July 2, at Alan Baljeu says:. August 14, at A combobox is a selection control that combines a non-editable textbox and a drop-down listbox that allows users to select an item from a list. It either displays the current selection or is empty if there is no selected item.
Gets a collection of GroupStyle objects that define the appearance of each level of groups. Inherited from ItemsControl. Gets or sets the horizontal alignment characteristics that are applied to a FrameworkElement when it is composed in a layout parent, such as a panel or items control.
Inherited from FrameworkElement. Gets or sets a value that indicates whether the drop-down portion of the ComboBox is currently open. Gets a value that indicates whether the user can edit text in the text box portion of the ComboBox. This property always returns false. Gets or sets a value indicating whether the user can interact with the control. Inherited from Control. Gets or sets the identifying name of the object. Gets or sets the value of the selected item, obtained by using the SelectedValuePath.
Inherited from Selector. Gets or sets an instance Style that is applied for this object during layout and rendering. Gets or sets the vertical alignment characteristics that are applied to a FrameworkElement when it is composed in a parent object such as a panel or items control. Gets or sets an object source used to generate the content of the ItemsControl. Positions child objects and determines a size for a UIElement.
Parent objects that implement custom layout for their child elements should call this method from their layout override implementations to form a recursive layout update.
Inherited from UIElement. Returns the current effective value of a dependency property from a DependencyObject. Inherited from DependencyObject. Returns the index to the item that has the specified, generated container. Returns the local value of a dependency property, if a local value is set. Attaches a binding to a FrameworkElement, using the provided binding object. Sets the local value of a dependency property on a DependencyObject.
Occurs when the input system reports an underlying drag event with this element as the target. Occurs when the input system reports an underlying drag event with this element as the origin. Occurs when the input system reports an underlying drag event with this element as the potential drop target.
Occurs when the input system reports an underlying drop event with this element as the drop target.
Drag two comboboxes and two textboxes from a toolbox and set the following properties in the properties window. Add some more properties combobox items and selection event, as shown in the following XAML code.
When you compile and execute the above code, it will produce the following window. When you select an item, it will be displayed on the textbox. We recommend that you execute the above example code and try some other properties and events of the combobox control. WPF - Combobox Advertisements. Previous Page. Next Page. Inherited from Control 2 BorderThickness Gets or sets the border thickness of a control.This topic describes the styles and templates for the ComboBox control.
You can modify the default ControlTemplate to give the control a unique appearance. For more information, see Create a template for a control. The following table lists the named parts for the ComboBox control. The following table lists the states for the ComboBox control.
The ComboBoxItem control does not have any named parts. The following table lists the states for the ComboBoxItem control. The following example shows how to define a ControlTemplate for the ComboBox control and associated types. For the complete sample, see Styling with ControlTemplates Sample. Skip to main content. Exit focus mode.
Disabled CommonStates The control is disabled. Focused FocusStates The control has focus. Unfocused FocusStates The control does not have focus. Selected SelectionStates The item is currently selected. Unselected SelectionStates The item is not selected. SelectedUnfocused SelectionStates The item is selected, but does not have focus.
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Contains the text of the ComboBox. The mouse pointer is over the ComboBox control. The drop-down for the ComboBox has focus. The control uses the Validation class and the HasError attached property is false. The HasError attached property is true has the control has focus. The HasError attached property is true has the control does not have focus.This is a drop-down list of strings. The user clicks on the box, and the items appear. We set items with ItemsSource. With IsEditable, the ComboBox accepts input text.
We then specify the Loaded and SelectionChanged events. We do not need to know the items at design-time. We assign a List of strings to the ItemsSource. Also: We set the SelectionIndex property to 0. This sets the first element in the List in the ComboBox. Generic; using System. Windows; using System. Controls; using System. A List. Add "Book" ; data. Add "Computer" ; data.
Add "Chair" ; data. Get the ComboBox reference. Assign the ItemsSource to the List. Make the first item selected. Get the ComboBox. Set SelectedItem as Window Title. SelectedItem as string; this. We display the currently selected item in the ComboBox as part of the Window Title. The string could be used in any way in the C code. The ItemsSource is a property on the ComboBox.
How to set DropDownStyle in ComboBox in DataGridView
It can be assigned to any reference object that implements the IEnumerable interface. This includes arrays and Lists. We can set all the items in a single assignment. Property IEnumerable Array Also: We can read in the items from a text file containing strings, and then use those values stored in a List or array as the items.
A ComboBox presents the user with a choice. We populate the ComboBox in various ways. The ItemsSource property is one of the easiest—it receives an IEnumerable collection. And in event handlers SelectionChanged we act on user input. Every person is special and unique. Send bug reports to info dotnetperls.This is pretty good thanks!
Is there a way to change the highlight color inside the drop down? Does the ItemsPresenter needs its own template? For anyone else wanting to edit the highlight color inside the drop down, just override the default for a quick fix.
Add this line at the top with all the brushes:. Very nice and thanks. May I ask, is it possible to change the background and foreground colors of the item selected? I would assume that defaults to 0, but when I attempt to define the columns and assign them to column 0, it craps out on me. I would like a button on the left side of the combobox control, any suggestions? Nice one! This is great. How would one do a IsFocused blur to the border?
That is, to blur the border when the ComboBox has focus. Skip to content. Instantly share code, notes, and snippets. Code Revisions 2 Stars 32 Forks Embed What would you like to do? Embed Embed this gist in your website. Share Copy sharable link for this gist. Learn more about clone URLs. Download ZIP.
ComboBox Styles and Templates
This comment has been minimized. Sign in to view. Copy link Quote reply. Very nice! This is sweet thank you! Nice sollution.
Just what I needed. Thank you very much! Thank you! It is what I need now. Thank you, very nice! This is Awesome.
Thanks for posting this, made my life sooo much easier. Nice, thank you. How would one do I change the font color? How to make ComboBoxItems text align to left or right instead of center? Thanks for ready to work solution. Very nice code