绑定命令到ComboBox的SelectionChanged事件 定义命令: 首先,在你的ViewModel中定义一个命令。这通常是通过实现ICommand接口来完成的。 csharp using System; using System.Windows.Input; public class ViewModel { private ICommand _comboBoxSelectionChangedCommand; public ICommand ComboBoxSelectionChangedCommand { get {...
privatevoidComboBox_SelectionChanged(objectsender, SelectionChangedEventArgs e) { e.Handled=true; } 如果采用MVVM模式,在当前页面中添加如下代码(注意不是ViewModel中) <TabControl SelectionChanged="TabControl_OnSelectionChanged"> <i:Interaction.Triggers> <i:EventTrigger EventName="SelectionChanged"> <command:Event...
3.ViewModel public ICommand ComboBoxComputeRuleSelectionChangedCommand { get; private set; } public void InitialCommand() { ComboBoxComputeRuleSelectionChangedCommand = new DelegateCommand(OnComboBoxComputeRuleSelectionChangedCommand); } private void OnComboBoxComputeRuleSelectionChangedCommand() { UpdateResultO...
问在WPF中使用ComboBox更改/添加选择项EN在工作流框架中，我们遵循MVVM模式，所以有模型，视图和ViewModel...
<i:InvokeCommandAction Command="{Binding SelectionChangedCmd}" CommandParameter="{Binding ElementName=cbStatus}" /> </i:EventTrigger> </i:Interaction.Triggers> </ComboBox> </Grid> </UserControl> 1. 2. 3. 4. 5. 6. 7. 8. 9.
问WPF - MVVM: ComboBox值在SelectionChanged之后EN在ViewModel中声明组合框项，并使用属性"Source“将其...
WPF ComboBox绑定SelectionChanged事件 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.
Visibility="{Binding ComboBoxVisibility}" > <i:Interaction.Triggers> <i:EventTrigger EventName="SelectionChanged"> <i:InvokeCommandAction Command="{Binding FamilySelectionChangedCommand}" CommandParameter="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}},Path=DataContext...
ComboBoxitem selection makes TextBoxes enable and disable? Command - Hyperlink Command to handle the double click on a Grid Control CommandParameter pass the name of the control ComoBox SelectionChanged event firing when we changing value of combobox WPF Comparing two observablecollections Compile WPF...
由于ComboBox,ListBox等控件没有实现ICommandSource接口,所以不支持在XAML中进行Command绑定,下面的一段代码就是,对ComboBox实现对ICommandSource接口的实现: publicclassComboBoxWithCommand : ComboBox, ICommandSource {privatestaticEventHandler canExecuteChangedHandler;publicstaticreadonlyDependencyProperty CommandProperty...