WPF 事件实现MVVM中的Command绑定
2020-12-18 21:32
标签：public ati key ble wpf href hand 需要 pac 1. 在ViewModel中弹出消息提示框，需要添加下面的代码块： 在ViewModel中的调用方式是： 2. 将鼠标双击事件绑定到ViewModel中的 ShowRowDetails 的方式是： 注意: 在xaml 代码中的命令带Command后缀，在ViewModel中不需要。 完整实例下载 WPF 事件实现MVVM中的Command绑定 标签：public ati key ble wpf href hand 需要 pac 原文地址：https://www.cnblogs.com/runningRain/p/13926951.html dxmvvm:Interaction.Behaviors>
dx:DXMessageBoxService />
dxmvvm:Interaction.Behaviors>
public virtual void ShowRowDetails(SampleData obj)
{
MessageBoxService.Show(obj.ToString(), "Row Details");
}
dxmvvm:Interaction.Behaviors>
dxmvvm:EventToCommand EventName="MouseDoubleClick"
Command="{Binding ShowRowDetailsCommand}"
PassEventArgsToCommand="True">
dxmvvm:EventToCommand.EventArgsConverter>
dx:EventArgsToDataRowConverter/>
dxmvvm:EventToCommand.EventArgsConverter>
dxmvvm:EventToCommand>
dxmvvm:Interaction.Behaviors>
UserControl x:Class="EventToCommandExample.Views.MainView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:dx="http://schemas.devexpress.com/winfx/2008/xaml/core"
xmlns:dxg="http://schemas.devexpress.com/winfx/2008/xaml/grid"
xmlns:dxb="http://schemas.devexpress.com/winfx/2008/xaml/bars"
xmlns:dxmvvm="http://schemas.devexpress.com/winfx/2008/xaml/mvvm"
xmlns:ViewModels="clr-namespace:EventToCommandExample.ViewModels"
xmlns:localConverters="clr-namespace:EventToCommandExample.Converters"
mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="600"
DataContext="{dxmvvm:ViewModelSource Type={x:Type ViewModels:MainViewModel}}">
dxmvvm:Interaction.Behaviors>
dx:DXMessageBoxService />
dxmvvm:Interaction.Behaviors>
Grid>
Grid.Resources>
localConverters:ReviewResultRowBackColorConverter x:Key="reviewResultRowBackColorConverter">localConverters:ReviewResultRowBackColorConverter>
localConverters:String2BoolConverter x:Key="string2BoolConverter">localConverters:String2BoolConverter>
Style x:Key="optimizedRowStyle" TargetType="{x:Type dxg:RowControl}">
Setter Property="Background" Value="{Binding Row.Mandatory, Converter={StaticResource reviewResultRowBackColorConverter}}"/>
Style>
Style x:Key="barButtonItemStyle" TargetType="dxb:BarButtonItem">
Style.Triggers>
DataTrigger Binding="{Binding Row.Row.Mandatory,Converter={StaticResource string2BoolConverter}}" Value="false">
Setter Property="IsVisible" Value="False"/>
DataTrigger>
Style.Triggers>
Style>
Grid.Resources>
Grid.RowDefinitions>
RowDefinition/>
RowDefinition Height="Auto"/>
Grid.RowDefinitions>
dx:DXTabControl>
dxmvvm:Interaction.Behaviors>
dxmvvm:EventToCommand EventName="SelectionChanged"
Command="{Binding SelectedTabIndexChangedCommand}"
PassEventArgsToCommand="True">
dxmvvm:EventToCommand>
dxmvvm:Interaction.Behaviors>
dx:DXTabItem Header="Test">
dxg:GridControl ItemsSource="{Binding GridData}" AutoGenerateColumns="AddNew">
dxg:GridControl.Columns>
dxg:GridColumn Header="ID" FieldName="ID">dxg:GridColumn>
dxg:GridColumn Header="Text" FieldName="Text">dxg:GridColumn>
dxg:GridColumn Header="Value" FieldName="Value">dxg:GridColumn>
dxg:GridColumn Header="Mandatory" FieldName="Mandatory">dxg:GridColumn>
dxg:GridControl.Columns>
dxg:GridControl.View>
dxg:TableView x:Name="tvTable" RowStyle="{StaticResource optimizedRowStyle}">
dxg:TableView.RowCellMenuCustomizations>
dxb:BarButtonItem Content="DB Owner"
Command="{Binding Path=(dxg:DataControlBase.ActiveView).DataContext.SetTableDataHeaderCommand, RelativeSource={RelativeSource Self}}"
CommandParameter="{Binding ElementName=tvTable, Path=FocusedRowHandle}"
dxb:BarManager.ShowGlyphsInPopupMenus="False"
Style="{StaticResource barButtonItemStyle}">
dxb:BarButtonItem>
dxb:BarButtonItem Content="Table Name" IsVisible="{Binding Row.Row.Mandatory,Converter={StaticResource string2BoolConverter}}"
Command="{Binding Path=(dxg:DataControlBase.ActiveView).DataContext.SetTableDataHeaderCommand, RelativeSource={RelativeSource Self}}"
CommandParameter="{Binding ElementName=tvTable, Path=FocusedRowHandle}">
dxb:BarButtonItem>
dxb:BarButtonItem Content="DataHeader"
Command="{Binding Path=(dxg:DataControlBase.ActiveView).DataContext.SetTableDataHeaderCommand, RelativeSource={RelativeSource Self}}"
CommandParameter="{Binding ElementName=tvTable, Path=FocusedRowHandle}">
dxb:BarButtonItem>
dxb:BarButtonItem Content="DataBegin"
Command="{Binding Path=(dxg:DataControlBase.ActiveView).DataContext.SetTableDataBeginCommand, RelativeSource={RelativeSource Self}}"
CommandParameter="{Binding ElementName=tvTable, Path=FocusedRowHandle}">
dxb:BarButtonItem>
dxg:TableView.RowCellMenuCustomizations>
dxmvvm:Interaction.Behaviors>
dxmvvm:EventToCommand EventName="MouseDoubleClick"
Command="{Binding ShowRowDetailsCommand}"
PassEventArgsToCommand="True">
dxmvvm:EventToCommand.EventArgsConverter>
dx:EventArgsToDataRowConverter/>
dxmvvm:EventToCommand.EventArgsConverter>
dxmvvm:EventToCommand>
dxmvvm:Interaction.Behaviors>
dxg:TableView>
dxg:GridControl.View>
dxg:GridControl>
dx:DXTabItem>
dx:DXTabItem Header="Testtab">
dxg:GridControl ItemsSource="{Binding GridData}" AutoGenerateColumns="AddNew">
dxg:GridControl.View>
dxg:TableView>
dxmvvm:Interaction.Behaviors>
dxmvvm:EventToCommand EventName="MouseDoubleClick"
Command="{Binding ShowRowDetailsCommand}"
PassEventArgsToCommand="True">
dxmvvm:EventToCommand.EventArgsConverter>
dx:EventArgsToDataRowConverter/>
dxmvvm:EventToCommand.EventArgsConverter>
dxmvvm:EventToCommand>
dxmvvm:Interaction.Behaviors>
dxg:TableView>
dxg:GridControl.View>
dxg:GridControl>
dx:DXTabItem>
dx:DXTabControl>
Grid>
UserControl>
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文章标题：WPF 事件实现MVVM中的Command绑定
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