WPF中DataGrid实现多选框功能

1. 效果图

2. Model建立

cs 复制代码

public class RstModelCheck : ObservableObject
{
    //为了显示Head1和Head2.而且View中绑定属性而非字段，否则不能显示。
    public string? Name { get; set; }    
    public bool PlatenAll 
    {
        get => _platenAll;
        set
        {
            SetProperty(ref _platenAll, value);
            PlatenA = value;
            PlatenB = value;
            PlatenC = value;
            PlatenD = value;
        }
    }
    public bool PlatenA 
    {
        get => _platenA;
        set => SetProperty(ref _platenA, value);
    }
    public bool PlatenB
    {
        get => _platenB;
        set => SetProperty(ref _platenB, value);
    }
    public bool PlatenC
    {
        get => _platenC;
        set => SetProperty(ref _platenC, value);
    }
    public bool PlatenD
    {
        get => _platenD;
        set => SetProperty(ref _platenD, value);
    }

    private bool _platenAll;
    private bool _platenA;
    private bool _platenB;
    private bool _platenC;
    private bool _platenD;

    public RstModelCheck(string name)
    {
        this.Name = name;
    }
}

3. ViewModel编写

cs 复制代码

public ObservableCollection<RstModelCheck> IsCheckRstModel
{
    get => _isCheckRstModel;
    set => SetProperty(ref _isCheckRstModel, value);
}
private ObservableCollection<RstModelCheck> _isCheckRstModel = new();

//构造函数中添加：
IsCheckRstModel.Add(new RstModelCheck("Head1"));
IsCheckRstModel.Add(new RstModelCheck("Head2"));

4. View中Xaml编写

cs 复制代码

<DataGrid ItemsSource="{Binding IsCheckRstModel}" AutoGenerateColumns="False" SelectionUnit="Cell" ColumnHeaderHeight="20">
    <DataGrid.Columns>
        <DataGridTextColumn Header="Platen" Binding="{Binding Name}" IsReadOnly="True" CanUserSort="False" Selector.IsSelected="False"/>
        <DataGridCheckBoxColumn Header="AllSet" Binding="{Binding Path=PlatenAll,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" CanUserSort="False"/>
        <DataGridCheckBoxColumn Header="A" Binding="{Binding PlatenA}" CanUserSort="False"/>
        <DataGridCheckBoxColumn Header="B" Binding="{Binding PlatenB}" CanUserSort="False"/>
        <DataGridCheckBoxColumn Header="C" Binding="{Binding PlatenC}" CanUserSort="False"/>
        <DataGridCheckBoxColumn Header="D" Binding="{Binding PlatenD}" CanUserSort="False"/>
    </DataGrid.Columns>
</DataGrid>