我是一些应用程序,我想将一些文本框和chekcBox绑定到Dictionary(Enum,string)的值字段.这是可能的,我该怎么做？
在xaml代码中我有这样的东西 – 它用于字典,字符串作为键,但它无法正确绑定到枚举键
<dxe:TextEdit EditValue="{Binding Properties[PrimaryAddress],Mode=TwoWay}" />
<dxe:TextEdit EditValue="{Binding Properties[SecondaryAddress],Mode=TwoWay}" />
<dxe:CheckEdit EditValue="{Binding Properties[UsePrimaryAddress],Mode=TwoWay}" />
..这就是我在Enum中所拥有的
public enum MyEnum
{
PrimaryAddress,SecondaryAddress,UsePrimaryAddress
}
在viewmodel字典中定义为：
public Dictionary<MyEnum,string> Properties
我找到了具有枚举值的comboBox解决方案,但这不适用于我的情况.
有什么建议？
解决方法
您必须在绑定表达式中为索引器的参数设置适当的类型.
查看型号：
public enum Property
{
PrimaryAddress,UsePrimaryAddress
}
public class viewmodel
{
public viewmodel()
{
Properties = new Dictionary<Property,object>
{
{ Property.PrimaryAddress,"123" },{ Property.SecondaryAddress,"456" },{ Property.UsePrimaryAddress,true }
};
}
public Dictionary<Property,object> Properties { get; private set; }
}
XAML：
<Window x:Class="WpfApplication5.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplication5"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBox Grid.Row="0" Text="{Binding Path=Properties[(local:Property)PrimaryAddress]}"/>
<TextBox Grid.Row="1" Text="{Binding Path=Properties[(local:Property)SecondaryAddress]}"/>
<CheckBox Grid.Row="2" IsChecked="{Binding Path=Properties[(local:Property)UsePrimaryAddress]}"/>
</Grid>
</Window>
代码隐藏：
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
DataContext = new viewmodel();
}
}
有关详细信息,请参阅“Binding Path Syntax”.
