WPF GridControl Command 的时候 传我需要的参数

如果不使用MVVM。直接调用GridControl 事件 取当前单击某一列的值。

如果在MVVM中那么则使用Command 。通过Command传递参数等 就比以往的直接调用事件复杂。。

需求：

在点击  GridConrol的时候 下面值跟着变化。。主要是通过鼠标 RowDoubleClick 和键盘 Enter 时 调用Command

MVVM：

  <UserControl.Resources>
        <!--数据模板-->
        <DataTemplate x:Key="RowDetailTemplate">
            <GroupBox Grid.Row="3" Header="用户基本信息">
                <Grid >
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="300*" />
                        <ColumnDefinition Width="300*" />
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="37*" />
                        <RowDefinition Height="46*" />
                        <RowDefinition Height="44*" />
                    </Grid.RowDefinitions>
                    <TextBlock Height="23" HorizontalAlignment="Left" Margin="7,8,0,0"  Text="用户编号:" VerticalAlignment="Top" />
                    <TextBlock Grid.Column="1" Height="23" HorizontalAlignment="Left"  Text="用户名称:" VerticalAlignment="Center" />
                    <TextBlock Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="7,19,0,0"  Text="用户角色:" VerticalAlignment="Top" />
                    <TextBlock Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="199,18,0,0"  Text="用户性别:" VerticalAlignment="Top" />
                    <TextBlock Grid.Column="1" Grid.Row="1" Height="23" HorizontalAlignment="Left"  Text="用户年龄:" VerticalAlignment="Center" />
                    <!--绑定相关的字段-->
                    <dxe:TextEdit Height="23" Text="{Binding Path=UserCode}" HorizontalAlignment="Left" Margin="64,5,0,0" VerticalAlignment="Top" Width="120" />
                    <dxe:TextEdit Grid.Column="1" Text="{Binding Path=UserName}" Height="23" HorizontalAlignment="Left" Margin="67,6,0,0"  VerticalAlignment="Top" Width="120" />
                    <dxe:TextEdit Grid.Row="1" Height="23" Text="{Binding Path=UserRole}" HorizontalAlignment="Left" Margin="64,19,0,0" VerticalAlignment="Top" Width="120" />
                    <dxe:ComboBoxEdit Grid.Row="1" Text="{Binding Path=UserGender}" Height="23" HorizontalAlignment="Left" Margin="256,18,0,0" Name="comboBox1" VerticalAlignment="Top" Width="65">
                        <dxe:ComboBoxEditItem Content="男" />
                        <dxe:ComboBoxEditItem Content="女" />
                    </dxe:ComboBoxEdit>
                    <dxe:TextEdit Grid.Column="1" Text="{Binding Path=UserAge}" Grid.Row="1" Height="23" HorizontalAlignment="Right" Margin="0,0,207,0"  VerticalAlignment="Center" Width="120" />
                    <Button Content="新增" Grid.Row="2" Grid.ColumnSpan="2" Height="23" HorizontalAlignment="Center" Name="btnSave" Margin="-250,0,0,0" VerticalAlignment="Center" Width="75" />
                    <Button Content="删除" Grid.Row="2"  Grid.ColumnSpan="2" Height="23" HorizontalAlignment="Center" Margin="90,0,0,0"  Name="btnDelete" VerticalAlignment="Center" Width="75" />
                    <Button Content="取消" Grid.Row="2" Grid.ColumnSpan="2" Height="23" HorizontalAlignment="Center"  Name="btnCancel" Margin="260,0,0,0" VerticalAlignment="Center" Width="75" />
                    <Button Content="保存"  Height="23" HorizontalAlignment="Center" Grid.ColumnSpan="2" Margin="-80,0,0,0" Name="button2" VerticalAlignment="Center" Width="75" Grid.Row="2" />
                </Grid>
            </GroupBox>
        </DataTemplate>
    </UserControl.Resources>
    <Grid >
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="250*" />
            <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <!--用于显示 标题或导航菜单-->
        <ContentControl Content="{Binding Navigator.View}" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch" VerticalAlignment="Stretch" />
        <!--检索-->
        <Border BorderBrush="Silver" BorderThickness="1" Height="51"  Name="border1"  Grid.Row="1">
            <StackPanel Orientation="Horizontal">
                <Label Content="用户信息:"  VerticalAlignment="Center" HorizontalAlignment="Left" />
                <dxe:TextEdit Height="23" Name="textBox1" Width="245" VerticalAlignment="Center"/>
                <Button Content="检索" Margin="20,0,0,0" Height="23" HorizontalAlignment="Left" Command="{Binding SelectButtonCommand}" VerticalAlignment="Center" Width="75" />
            </StackPanel>
        </Border>
        <!--数据列表-->
        <dxg:GridControl  Grid.Row="2" Name="UsersDataGrid" ItemsSource="{Binding Data.Rats}">
            <dxg:GridControl.Columns>
                <dxg:GridColumn  Header="用户编号" FieldName="UserCode"/>
                <dxg:GridColumn  Header="用户名称" FieldName="UserName"/>
                <dxg:GridColumn  Header="用户角色" FieldName="UserRole"/>
                <dxg:GridColumn  Header="用户姓别" FieldName="UserGender"/>
                <dxg:GridColumn  Header="用户年龄" FieldName="UserAge" />
            </dxg:GridControl.Columns>
            <dxg:GridControl.View>
                <dxg:TableView Name="View" AutoWidth="True" AllowPerPixelScrolling="True" ShowGroupPanel="False" AllowFilterEditor="False" ShowGroupedColumns="True"
                        BestFitMode="Smart" BestFitArea="All" ShowHorizontalLines="False" AllowEditing="False" NavigationStyle="Row" AllowHorizontalScrollingVirtualization="False" FadeSelectionOnLostFocus="False"
                        ShowIndicator="False" >
                    <interactivity:Interaction.Triggers>
                        <interactivity:EventTrigger EventName="KeyDown">
                            <helpers:KeyEventAction Key="Enter" Command="{Binding ShowDataGridCommand}" CommandParameter="{Binding ElementName=View,Path=FocusedRow}"/>
                        </interactivity:EventTrigger>
                        <interactivity:EventTrigger EventName="RowDoubleClick">
                            <interactivity:InvokeCommandAction  Command="{ Binding ShowDataGridCommand}" CommandParameter="{Binding ElementName=View, Path=FocusedRow}"/>
                        </interactivity:EventTrigger>
                    </interactivity:Interaction.Triggers>
                    </dxg:TableView>
            </dxg:GridControl.View>
        </dxg:GridControl>
        <!--显示定义的数据模板-->
        <ContentPresenter Grid.Row="3" Content="{Binding Path=View.FocusedRowData.Row, ElementName=UsersDataGrid}" ContentTemplate="{StaticResource RowDetailTemplate}" HorizontalAlignment="Stretch"/>
    </Grid>

public class UserManageView : ModuleWithNavigator
    {
        public UserManageView()
        {
            Title = "用户管理";
        }

        #region  Command

        private void GridCellClick(object sender)
        {

        }

        protected override void InitializeCommands()
        {
            ShowDataGridCommand = new SimpleActionCommand(GridCellClick);
            SelectButtonCommand = new SimpleActionCommand(ButtonCommand);
        }
        public ICommand ShowDataGridCommand { get; private set; }
        public ICommand SelectButtonCommand { get; private set; }
        void ButtonCommand(object sender)
        {
            if (sender == null)
                return;
            string value = sender.ToString();
            switch (value)
            {
                case "Add":
                    DXMessageBox.Show(value, "Caption", MessageBoxButton.OK, MessageBoxImage.Information);
                    break;
                case "Edit":
                    DXMessageBox.Show(value, "Caption", MessageBoxButton.OK, MessageBoxImage.Information);
                    break;
                case "Delete":
                    DXMessageBox.Show(value, "Caption", MessageBoxButton.OK, MessageBoxImage.Information);
                    break;
                case "Check":
                    DXMessageBox.Show(value, "Caption", MessageBoxButton.OK, MessageBoxImage.Information);
                    break;
                case "Print":
                    DXMessageBox.Show(value, "Caption", MessageBoxButton.OK, MessageBoxImage.Information);
                    break;
            }
        }

        #endregion
    }

在这里做个备注、、、