WPF MVVM模式下如何将UI窗口变量传参到Viewmodel层
//窗口中绑定ViewModel
<hc:GlowWindow.DataContext>
<viewmodel:MainWindowViewModel />
</hc:GlowWindow.DataContext>
//注册初始化事件
<hc:Interaction.Triggers>
<hc:EventTrigger EventName="Loaded">
<hc:EventToCommand Command="{Binding CmdLoaded}" PassEventArgsToCommand="True"/>
</hc:EventTrigger>
</hc:Interaction.Triggers>
//需要传递到viewmodel层的UI控件
<Border
Grid.Column="1"
Margin="5"
Background="{DynamicResource MainContentForegroundDrawingBrush}">
<Grid x:Name="MainContent">
</Grid>
</Border>
//需要传递到viewmodel层的UI控件
<hc:Drawer
Name="DrawerSourceCode"
Dock="Right"
MaskCanClose="True"
ShowMode="Push">
<hc:ScrollViewer Width="700">
<avalonEdit:TextEditor
Name="TextContainer"
Margin="5"
FontFamily="Consolas"
FontSize="10pt"
IsReadOnly="True"
ShowLineNumbers="True"
SyntaxHighlighting="C#" />
</hc:ScrollViewer>
</hc:Drawer>
// 控件
private Grid MainContent;
private TextEditor TextContainer;
/// <summary>
/// 关联控件 通过Lazy关键字 实现延迟初始化
/// </summary>
public RelayCommand<RoutedEventArgs> CmdLoaded => new Lazy<RelayCommand<RoutedEventArgs>>(() => new RelayCommand<RoutedEventArgs>(Loaded)).Value;
private void Loaded(RoutedEventArgs e)
{
MainContent = (e.Source as MainWindow).MainContent;
TextContainer = (e.Source as MainWindow).TextContainer;
}
原文地址:https://blog.csdn.net/baidu_24565387/article/details/134715380
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