WPF：使用TemplateBinding將整數繫結到TextBlock

我在WPF中有一個自定義控制元件.在這裡我有一個型別為int的DependencyProperty.在自定義控制元件的模板中,我有一個TextBlock,我想在TextBlock中顯示整數的值.但我不能讓它上班.

我正在使用TemplateBinding.如果我使用相同的程式碼,但將DependencyProperty的型別更改為字串,那麼它可以正常工作.但我真的希望它是一個整數,我的應用程式的其餘部分工作.

我該怎麼做？

我已經編寫了簡化的程式碼來顯示問題.首先定製控制元件：

public class MyCustomControl : Control
{
static MyCustomControl()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(MyCustomControl), new FrameworkPropertyMetadata(typeof(MyCustomControl)));

MyIntegerProperty = DependencyProperty.Register("MyInteger", typeof(int), typeof(MyCustomControl), new FrameworkPropertyMetadata(0));
}


public int MyInteger
{
get
{
return (int)GetValue(MyCustomControl.MyIntegerProperty);
}
set
{
SetValue(MyCustomControl.MyIntegerProperty, value);
}
}
public static readonly DependencyProperty MyIntegerProperty;
}

這是我的預設模板：

<Style TargetType="{x:Type local:MyCustomControl}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:MyCustomControl}">
<Border BorderThickness="1" CornerRadius="4" BorderBrush="Black" Background="Azure">
<StackPanel Orientation="Vertical">
<TextBlock Text="{TemplateBinding MyInteger}" HorizontalAlignment="Center" />
</StackPanel>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

使用方法：

<Window x:Class="CustomControlBinding.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:CustomControlBinding"
Title="MainWindow" Height="350" Width="525">
<Grid>
<local:MyCustomControl Width="100" Height="100" MyInteger="456" />
</Grid>

我究竟做錯了什麼？

謝謝//大衛

<TextBlock Text="{Binding MyInteger, RelativeSource={RelativeSource TemplatedParent}}" HorizontalAlignment="Center" />

根據ofollow,noindex" target="_blank">this thread ,這是TemplateBinding的一個限制：

TemplateBinding is a lightweight“binding”, it doesn’t support somefeatures of traditional Binding, suchas automatically type conversion usingthe known type converters associatedwith the target property