如何为 WPF RadioButton 创建布尔到字符串转换器？
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How do I create a Boolean to String Converter for a WPF RadioButton?
提问by Bob.
I have a DataGridColumn which represents whether an entry is the primary display value, but the value is stored in the database as "Y" or "N".
我有一个 DataGridColumn，它表示一个条目是否是主要显示值，但该值在数据库中存储为“Y”或“N”。
<Window.Resources>
<local:BoolToPrimaryConverter x:Key="BoolToPrimaryConverter" />
</Window.Resources>
<DataGrid Name="NamingDatagrid" AutoGenerateColumns="False" ItemsSource="{Binding EntityReferences, Mode=TwoWay}"
CanUserAddRows="False">
<DataGrid.Columns>
<DataGridTextColumn Header="Convention" Binding="{Binding ReferenceType}"/>
<DataGridTextColumn Header="Value" Binding="{Binding ReferenceValue}" />
<DataGridTemplateColumn Header="Primary" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<RadioButton GroupName="Prime" IsChecked="{Binding Primary, Mode=TwoWay, Converter={StaticResource BoolToPrimaryConverter}, UpdateSourceTrigger=PropertyChanged}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
Boolean to String Converter
布尔到字符串转换器
class BoolToPrimaryConverter : IValueConverter {
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) {
return ((value as string).Equals("Y")) ? true : false;
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) {
return (bool)value ? "Y" : "N";
}
}
Even though the Converter is set, it is never called (checked with debugger). Is there something I am missing that I need to get this working?
即使设置了 Converter，它也不会被调用（用调试器检查）。有什么我需要让它工作的东西吗？
Edit: Added the Class where Primary comes from.
编辑：添加了主要来自的类。
[Serializable]
[EdmEntityType(NamespaceName = "cContainer", Name = "LUREFFORMAT")]
[DataContract(IsReference = true)]
public class LUREFFORMAT : EntityObject {
public LUREFFORMAT();
[DataMember]
[EdmScalarProperty(EntityKeyProperty = false, IsNullable = false)]
public short DISPLAYORDER { get; set; }
[DataMember]
[EdmScalarProperty(EntityKeyProperty = false, IsNullable = false)]
public short ENABLED { get; set; }
[DataMember]
[EdmScalarProperty(EntityKeyProperty = true, IsNullable = false)]
public long ID { get; set; }
[EdmScalarProperty(EntityKeyProperty = false, IsNullable = false)]
[DataMember]
public string ISUNIQUE { get; set; }
[DataMember]
[XmlIgnore]
[EdmRelationshipNavigationProperty("cContainer", "FK_REFS_REFFORMATID", "REFS")]
[SoapIgnore]
public EntityCollection<PLATFORMREFS> REFS { get; set; }
[EdmScalarProperty(EntityKeyProperty = false, IsNullable = false)]
[DataMember]
public string PRIMARY { get; set; }
[DataMember]
[EdmScalarProperty(EntityKeyProperty = false, IsNullable = false)]
public string REFFORMAT { get; set; }
public static LUREFFORMAT CreateLUREFFORMAT(long id, string rEFFORMAT, string pRIMARY, string iSUNIQUE, short dISPLAYORDER, short eNABLED);
}
Edit 2: Added EntityRefs property
编辑 2：添加 EntityRefs 属性
public EntityCollection<PLATFORMREFS> EntityRefs {
get {
return entityRefs;
}
set {
entityRefs = value;
OnPropertyChanged("EntityRefs");
}
}
采纳答案by kmatyaszek
@Bob so if it the same, change binding from Primary to upper case PRIMARY, and also PRIMARY is a value in LUREFFORMAT and cannot be accessed directly, just point from the LUREFFORMAT class.
@Bob 因此，如果相同，请将绑定从 Primary 更改为大写 PRIMARY，而且 PRIMARY 是 LUREFFORMAT 中的一个值，无法直接访问，只需从 LUREFFORMAT 类中指向即可。
<DataTemplate>
<RadioButton GroupName="Prime" IsChecked="{Binding LUREFFORMAT.PRIMARY, Mode=TwoWay, Converter={StaticResource BoolToPrimaryConverter}, UpdateSourceTrigger=PropertyChanged}" />
</DataTemplate>
