I have a custom control with a TextBlock inside it:
<Style TargetType="{x:Type local:CustControl}">
<Setter Property="T开发者_如何学运维emplate">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:CustControl}">
<Border Background="Blue"
Height="26"
Width="26" Margin="1">
<TextBlock x:Name="PART_CustNo"
FontSize="10"
Text="{Binding Source=CustControl,Path=CustNo}"
Background="PaleGreen"
Height="24"
Width="24"
Foreground="Black">
</TextBlock>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
And this Custom control has a dependency property:
public class CustControl : Control
{
static CustControl()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(CustControl), new FrameworkPropertyMetadata(typeof(CustControl)));
}
public readonly static DependencyProperty CustNoProperty = DependencyProperty.Register("CustNo", typeof(string), typeof(CustControl), new PropertyMetadata(""));
public string CustNo
{
get { return (string)GetValue(CustNoProperty); }
set { SetValue(CustNoProperty, value); }
}
}
I want the value of "CustNo" property be transfered in "Text" property of TextBlock in each instance of the Custom Control. But my:
Text="{Binding Source=CustControl,Path=CustNo}"
isn't working.
Isn't working also with Path=CustNoProperty:
Text="{Binding Source=CustControl,Path=CustNoProperty}"
You need a TemplateBinding, like
<TextBlock
Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=CustNo}" />
Try the answers to this SO question. I think you'll want the third example. ie:
{Binding Path=CustNo, RelativeSource={RelativeSource TemplatedParent}}
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