WPF——ComboBox控件怎么绑定数据

Posted 2023-04-11

一个是Value，一个是Text我现在只会绑一个Text。怎么才能把它的索引也绑上。

参考技术A 把要帮定的值先从数据库里读出来，再放到集合里 循环读取就可以了

Wpf的comboBox怎么绑定数据？

Wpf的comboBox怎么绑定数据？数据是从数据库读取出来的，显示的是类别的名称，点击提交时提交的是类别的ID，这要怎么做？

WPF中提供了数据绑定的功能，操作起来很方便，集合类的控件几乎都可以用数据源来进行数据的绑定，下面操作一下下拉列表框控件ComboBox控件的数据绑定操作。
要绑定到ComboBox控件的自定义类:
public class LocationRoad

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

建立数据源，就将此数据集合当作数据源绑定到ComboBox:
///
/// 当ComboBox选中项更改时发生
///
private LocationRoad _selectLocation;
public LocationRoad SelectLocation

get

return this._selectLocation;

set

this._selectLocation = value;
if (this.PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs("SelectLocation"));



private ObservableCollection _locationRoad = null;

public ObservableCollection LocationSource

get

if (this._locationRoad == null)

this._locationRoad = new ObservableCollection()
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"));

参考技术A 把要帮定的值先从数据库里读出来，再放到集合里 循环读取就可以了
求采纳为满意回答。 参考技术B <ComboBox Name="fooBarComboBox" 
          ItemsSource="Binding Path=ExampleEnumsWithCaptions" 
          DisplayMemberPath="Value" 
          SelectedValuePath="Key"
          SelectedValue="Binding Path=ExampleProperty, Mode=TwoWay" >