mvvm绑定checkbox wpf_WPF的MVVM模式给ComboBox绑定数据和读取

在网上找到类似的代码：

XAML文件

对应的ViewModel文件

public classLocationRoad

{public int ID { set; get; }public string Code { set; get; }public string Info { set; get; }

}/当ComboBox选中项更改时发生///privateLocationRoad _selectLocation;publicLocationRoad SelectLocation

{get{return this._selectLocation;

}set{this._selectLocation =value;if (this.PropertyChanged != null)

PropertyChanged(this, new PropertyChangedEventArgs("SelectLocation"));

}

}private ObservableCollection _locationRoad = null;publicObservableCollection LocationSource

{get{if (this._locationRoad == null)

{this._locationRoad = newObservableCollection() {new LocationRoad() { ID = 1, Code = "NGQ", Info = "南岗区"},new LocationRoad() { ID = 2, Code = "DLQ", Info = "道里区"},new LocationRoad() { ID = 3, Code = "DWQ", Info = "道外区"},new LocationRoad() { ID = 4, Code = "PFQ", Info = "平房区"},new LocationRoad() { ID = 5, Code = "XFQ", Info = "香坊区"},

};

}return this._locationRoad;

}set{this._locationRoad =value;if (this.PropertyChanged != null)

PropertyChanged(this, new PropertyChangedEventArgs("LocationSource"));

}

}

如果要进行双向绑定或其他的绑定方式，只要更改上面binging块中的Mode方式就可以了。一般用不到吧？

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我根据上面的代码，做了一点修改

SelectedItem="{Binding CbClientTypeSelectedItem}" MinWidth="70">

对应的ViewModel代码

publicCustomNodeItem _CbClientTypeSelectedItem;publicCustomNodeItem CbClientTypeSelectedItem

{get { return_CbClientTypeSelectedItem; }set{

_CbClientTypeSelectedItem=value;//if (SelectCallBack != null)//{//SelectCallBack(value);//}

NotifyOfPropertyChange();

}

}private List_CbClientType;public ListCbClientType

{get { return_CbClientType; }set{

_CbClientType=value;if (value != null && value.Count > 0 && CbClientTypeSelectedItem == null)

{

CbClientTypeSelectedItem=value.First();

}

NotifyOfPropertyChange();

}

}//在按钮的事件中获取选择项

public voidBtnTest()

{string msg =CbClientTypeSelectedItem.Descript;

MessageBox.Show(msg);

}

说明：这个应用在Caliburn.Micro中使用的