6/12/2023 0 Comments Wpf colorpicker toolkit![]() ((SampleCombo.SelectedItem) as MyData).MyBackColor = new SolidColorBrush(e. The goal of this tutorial is to explain how you can use the AJAX Control Toolkit ColorPicker control extender. It can be attached to any ASP.NET TextBox control. Contains two color gradient images to sample from, and custom palette support. Prepare new brush and assign it to the currently selected items's back color property. ColorPicker is an ASP.NET AJAX extender that provides client-side color-picking functionality with UI in a popup control. Private void ColorPicker_SelectedColorChanged(object sender, RoutedPropert圜hangedEventArgs e) For this, let's use SelectedColorChanged event of color picker in xaml.cs file: Now, what we need to do is - when user changes the color in color picket, we will change the MyBackColor property of selected item's associated MyData object using this new color. For this, we will define the data template for combo box item:Īnd change the combo box to refer this style, and the data list as items source: Now, we need to specify that the selected combo item's background color should be inline with the associated MyData object's MyBackColor property. We are now ready with our sample data and required controls. Void OnPropert圜hanged(string propertyName) Private MyData _selectedData = new MyData() Public partial class MainWindow : Window, INotifyPropert圜hanged Also, we will initialize this list in constructor of xaml: Now, we will be adding one List of MyData objects to xaml.cs file, which we will use as items source of the combo box. Observe that we have implemented INotifyPropert圜hanged interface, which we will be using to notify that some value in referenced object is changed. The Color Picker is an editor that allows a user to pick a color from predefined color palettes. Public event Propert圜hangedEventHandler Propert圜hanged Propert圜hanged(this, new Propert圜hangedEventArgs(propertyName)) If (!string.IsNullOrEmpty(propertyName) & Propert圜hanged != null) 1 Im trying to bind the SelectedColor property of the WPF Extended Toolkit ColorPicker to a DependencyProperty with type SolidColorBrush. void OnPropert圜hanged(string propertyName) MyBackColor = new SolidColorBrush(Colors.Transparent) ![]() Public class MyData : INotifyPropert圜hanged MyBackColor - Solid color brush - the color for this combo item.Name - text to be displayed as combo item.If we want to change the default selected color on application launching, set the value for AutomaticColor property. Let's create one data class - which will have two fields: Here, Yellow color brush is selected in the ColorPickerPalette. Now, we need to bind some data with this combo box. Here is code snippet for adding these controls (with addition text block for usability perspective): To use color picker control, we need to refer the downloaded DLL. Now, add both the controls to application. Add reference to this DLL in our application. Once downloaded, unzip the file - it will extract ''. We will use WPF toolkit for color picker control. We will need to controls for this sample: Today we are going to see how we can change the color of particular Combo box item.
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