Question

我有一个数据网格，项目来源中的一个项目是bool变量。

datagrid将bool转换为复选框。

我想知道如何添加事件复选框，点击数据网格内的复选框？

这是我的代码：

public class FilterMcode
{
    private bool cb;

    public bool Cb
    {
        get { return cb; }
        set { cb = value; }
    }
    private string mcode;

    public string Mcode
    {
        get { return mcode; }
        set { mcode = value; }
    }

    private string structureName;

    public string StructureName
    {
        get { return structureName; }
        set { structureName = value; }
    }

    public FilterMcode()
    {
        cb = true;
        structureName = "";
        mcode = "";
    }
}

public class Main ()
{
    private  List<FilterMcode> _qf;

    update void updateDataGrid()
    {
            DataGridCommands.ItemsSource = _qf;
            DataGridCommands.Items.Refresh();

    // calling check box click????
    }
}

Answer 1

使用INotifyPropertyChanged，然后每次选中复选框时，CB属性都会更新。

喜欢那样：

/// <summary>
/// implements the INotifyPropertyChanged (.net 4.5)
/// </summary>
public class BaseObservableObject : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;

    protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
    {
        var handler = PropertyChanged;
        if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
    }

    protected virtual void OnPropertyChanged<T>(Expression<Func<T>> raiser)
    {
        var propName = ((MemberExpression)raiser.Body).Member.Name;
        OnPropertyChanged(propName);
    }

    protected bool Set<T>(ref T field, T value, [CallerMemberName] string name = null)
    {
        if (!EqualityComparer<T>.Default.Equals(field, value))
        {
            field = value;
            OnPropertyChanged(name);
            return true;
        }
        return false;
    }
}

public class FilterMcode:BaseObservableObject
{
    private bool cb;

    public bool Cb
    {
        get { return cb; }
        set
        {
            cb = value;
            OnPropertyChanged();
        }
    }
    private string mcode;

    public string Mcode
    {
        get { return mcode; }
        set
        {
            mcode = value;
            OnPropertyChanged();
        }
    }

    private string structureName;

    public string StructureName
    {
        get { return structureName; }
        set
        {
            structureName = value;
            OnPropertyChanged();
        }
    }

    public FilterMcode()
    {
        cb = true;
        structureName = "";
        mcode = "";
    }
}

然后以下一种方式更改您的主要课程

public class Main
{
    private List<FilterMcode> _qf;

    public void updateDataGrid()
    {
        _qf.ForEach(mcode => mcode.PropertyChanged += McodeOnPropertyChanged);
        DataGridCommands.ItemsSource = _qf;
        DataGridCommands.Items.Refresh();

        // calling check box click????
    }

    private void McodeOnPropertyChanged(object sender, PropertyChangedEventArgs args)
    {
        if(args.PropertyName != "Cb" ) return;
        //Add your logic here
    }
}

这是获得所需内容的简单方法。有许多向下：

您必须取消订阅活动。
这不是使用wpf的MVVM方式。

的问候。

在datagrid wpf中调用选定的checbox方法

1 个答案: