如何在 Windows 8.1 的 ContentPresenter 中使用模板选择器 [英] How to use template selector within a ContentPresenter in Windows 8.1
问题描述
我有一个 Windows 8.1 应用程序.我需要根据某个值选择不同的模板.为此,我在带有静态资源模板选择器的 xaml 中使用 ContentPresenter.
I have a Windows 8.1 application. I have a requirement of selecting different templates based on a certain value. For this purpose I'm using ContentPresenter in the xaml with a Static Resource TemplateSelector.
这是我在 xaml 资源中的数据模板和模板选择器
Here's my datatemplates and templateselector in xaml resources
<DataTemplate x:Key="template1">
<TextBox Text="Temp 1" />
</DataTemplate>
<DataTemplate x:Key="template2">
<TextBox Text="Temp 2" />
</DataTemplate>
<DataTemplate x:Key="template3">
<TextBox Text="Temp 3" />
</DataTemplate>
<template:BalanceTypesTemplateSelector x:Key="MySelector"
Template1="{StaticResource template1}"
Template2="{StaticResource template2}"
Template3="{StaticResource template3}" />
这是我的 ContentPresenter XAML
Here's my ContentPresenter XAML
<ContentPresenter ContentTemplateSelector="{StaticResource MySelector}"
Content="{Binding MyData}" />
这是我的模板选择器代码
Here's my Template Selector Code
public class BalanceTypesTemplateSelector : DataTemplateSelector
{
public DataTemplate Template1 { get; set; }
public DataTemplate Template2 { get; set; }
public DataTemplate Template3 { get; set; }
protected override DataTemplate SelectTemplateCore(object item)
{
var type = item.ToString();
switch (type)
{
case "t1":
return Template1;
case "t2":
return Template1;
case "t3":
return Template3;
default:
throw new NotSupportedException();
}
}
return null;
}
}
但它根本没有碰到模板选择器代码.绑定的字符串在我运行应用程序时直接显示在显示屏上.
But it's not hitting the templateselector code at all. The string that is bound is directly displayed on the display when I run the app.
如果有人指出我正确的方向,我会很高兴.提前致谢.
I would be glad if some one point me in the right direction. Thanks in Advance.
推荐答案
使用 ContentControl 而不是 ContentPresenter 对我有用.感谢@KaiBrummund 对我的问题发表评论.
Using ContentControl instead of ContentPresenter is working for me. Thanks @KaiBrummund for his comment on my question.
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