在单击一行数据网格中的按钮时，隐藏另一行上的按钮

Question

我有一个 DataGrid，每行 DataGrid 包含四个按钮。

我的屏幕是这样的。假设我单击添加的开始按钮，然后我希望隐藏其他行上的所有按钮，例如删除、更新和删除，直到我单击添加的完成按钮并在处理完成后从 DataGrid 中删除该添加行。

我的其他功能工作正常，但唯一的问题是我点击添加行然后其他行上的其他按钮也是可点击的，所以我想隐藏它。

请帮我解决这个问题

 <DataGrid Grid.Row="3" Grid.ColumnSpan="2" Name="gridview" Background="#b5d2fc" IsReadOnly="True" ItemsSource="{Binding}" HorizontalScrollBarVisibility="Auto"
         SelectionMode="Single" SelectionUnit="FullRow" VerticalScrollBarVisibility="Auto" Loaded="gridview_Loaded"
        CanUserDeleteRows="False" CanUserAddRows="False" CanUserResizeRows="False"  VerticalAlignment="Top"  AutoGenerateColumns="False">
        <DataGrid.Columns>
            <DataGridTextColumn MaxWidth="155" Width="155" Binding="{Binding [Task]}" Header="Name"  />
            <DataGridTemplateColumn MaxWidth="30" MinWidth="30">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <Button x:Name="Start" Content="Play" Click="Button_Click" IsEnabled="{Binding IsEnableButton, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" VerticalAlignment="Top" Foreground="Black" Background="White"  Height="25"  Width="30" />
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn >
            <DataGridTemplateColumn MaxWidth="30" MinWidth="30">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <Button x:Name="Pause" Content="Pause" Click="Button_Click" IsEnabled="{Binding IsEnableButton, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" VerticalAlignment="Top" Foreground="Black" Background="White"  Height="25"  Width="30" />
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
            <DataGridTemplateColumn MaxWidth="30" MinWidth="30">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <Button x:Name="Stop" Content="Stop"   Foreground="Black" Click="Button_Click" IsEnabled="{Binding IsEnableButton, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" VerticalAlignment="Top" Background="White" Height="25"  Width="30" />
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
            <DataGridTemplateColumn MaxWidth="30" MinWidth="30">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <Button x:Name="Finish" Content="Finish"   Foreground="Black" Click="Button_Click" IsEnabled="{Binding IsEnableButton, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" VerticalAlignment="Top" Background="White" Height="25"  Width="30" />
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
        </DataGrid.Columns>
    </DataGrid>

这是我的 xmal 代码

Answer 1

您可以通过在按钮控件中绑定 IsEnabled 属性来实现。

xaml sn-p:

<DataGrid Name="MyGrid"  AutoGenerateColumns="False" Loaded="MyGrid_Loaded" Height="250"  >
<DataGrid.Columns>
    <DataGridTextColumn Header="Name" Binding="{Binding Name}" />
    <DataGridTemplateColumn Header="B1">
        <DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <Button Content="Start" x:Name="Play" Click="Button_Click" IsEnabled="{Binding IsEnableButton, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" Height="20" Width="80"/>
            </DataTemplate>
        </DataGridTemplateColumn.CellTemplate>
    </DataGridTemplateColumn>
    <DataGridTemplateColumn Header="B2">
        <DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <Button Content="Pause"  x:Name="Pause" Click="Button_Click" IsEnabled="{Binding IsEnableButton, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" Height="20" Width="80"/>
            </DataTemplate>
        </DataGridTemplateColumn.CellTemplate>
    </DataGridTemplateColumn>
    <DataGridTemplateColumn Header="B3">
        <DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <Button Content="Stop"  x:Name="Stop" Click="Button_Click" IsEnabled="{Binding IsEnableButton, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" Height="20" Width="80"/>
            </DataTemplate>
        </DataGridTemplateColumn.CellTemplate>
    </DataGridTemplateColumn>
    <DataGridTemplateColumn Header="B4">
        <DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <Button Content="Finish"  x:Name="Finish" Click="Button_Click" IsEnabled="{Binding IsEnableButton, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" Height="20" Width="80"/>
            </DataTemplate>
        </DataGridTemplateColumn.CellTemplate>
    </DataGridTemplateColumn>
</DataGrid.Columns>

xaml.cs

                public partial class MainWindow : Window
                {
                    List<TestEnableButton> objtestEnableButton = new List<TestEnableButton>();        
                    public MainWindow()
                    {
                        InitializeComponent();
                        this.DataContext = this;
                    }
                    private void MyGrid_Loaded(object sender, RoutedEventArgs e)
                    {
                        objtestEnableButton.Add(new TestEnableButton("A1", true, false));
                        objtestEnableButton.Add(new TestEnableButton("A2", true, false));
                        objtestEnableButton.Add(new TestEnableButton("A3", true, false));
                        objtestEnableButton.Add(new TestEnableButton("A4", true, false));
                        MyGrid.ItemsSource = objtestEnableButton;
                    }

                    bool butFlg = false;
                    private void Button_Click(object sender, RoutedEventArgs e)
                    {
                        var getButtonName = (sender as Button).Name;
                        var currentItem = MyGrid.CurrentItem as TestEnableButton;
                        foreach(var items in objtestEnableButton)
                        {
                            if (items.Name == currentItem.Name)
                            {
                                if (getButtonName == "Play")
                                {
                                    MessageBox.Show("Let's enjoy music...!)");
                                    butFlg = false;
                                }
                                else if (getButtonName == "Pause")
                                {
                                    MessageBox.Show("Pause the music for few minutes...!)"); butFlg = false;
                                }
                                else if (getButtonName == "Stop")
                                {
                                    MessageBox.Show("Stop the music...!)"); butFlg = false;
                                }
                                else if (getButtonName == "Finish")
                                {
                                    MessageBox.Show("End...!)");                        
                                    items.IsCheckFinish = true;
                                    butFlg = true;
                                }
                            }
                            else
                            {
                                items.IsEnableButton = false;
                            }
                        }

                        if (butFlg)
                        {
                            var itemsCollection = objtestEnableButton.RemoveAll(x => x.IsCheckFinish == true);
                            objtestEnableButton.ForEach(x => x.IsEnableButton = true);
                            MyGrid.ItemsSource = null;
                            MyGrid.ItemsSource = objtestEnableButton;
                        }            
                    }
                }
                public class TestEnableButton : INotifyPropertyChanged
                {
                    private string _name;
                    public string Name
                    {
                        get { return _name; }
                        set
                        {
                            _name = value;
                            OnPropertyChanged("Name");
                        }
                    }

                    private bool _IsEnableButton;
                    public bool IsEnableButton
                    {
                        get { return _IsEnableButton; }
                        set
                        {
                            _IsEnableButton = value;
                            OnPropertyChanged("IsEnableButton");
                        }
                    }

                    private bool _IsCheckFinish;
                    public bool IsCheckFinish
                    {
                        get { return _IsCheckFinish; }
                        set
                        {
                            _IsCheckFinish = value;
                            OnPropertyChanged("IsCheckFinish");
                        }
                    }
                    public TestEnableButton(string name, bool isB, bool isCheck)
                    {
                        Name = name;
                        IsEnableButton = isB;
                        IsCheckFinish = isCheck;
                    }

                    public event PropertyChangedEventHandler PropertyChanged;
                    public void OnPropertyChanged(string propertyName)
                    {
                        if (PropertyChanged != null)
                        {
                            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
                        }
                    }
                }