由网友(宠儿)分享简介：，我已经实现结合到不同的标签，不同的视图模型的多标签选项用一个简单的DataTemplate结合一个视图模型到视图。Based on the MVVM example by Josh Smith, I have implemented the multi tab option which binds to a d...

，我已经实现结合到不同的标签，不同的视图模型的多标签选项 用一个简单的DataTemplate结合一个视图模型到视图。

Based on the MVVM example by Josh Smith, I have implemented the multi tab option which binds to a different tab to a different view model using a simple datatemplate that binds a viewmodel to a view.

 <DataTemplate  DataType="{x:Type fixtureVM:SearchViewModel}">
    <SearchVw:SearchView/>
</DataTemplate>

这是我遇到的问题是，当我切换选项卡，然后再切换回来，在文本框中的值消失。当我在文本框中的文本绑定到一个值，在视图模型它不会消失。这是好的，我可以克服这一点，但我有另外一个问题，例如用在网格滚动条消失，一旦标签已失去焦点的位置。

The issue that I'm having, is when I switch tabs and then switch back again, the value in the textbox disappears. When I bind the Text in the textbox to a value in the ViewModel it does not disappear. This is fine, and I can overcome this but I am having another issue for example with the position of the scroll bar in a grid disappearing once the tab has lost focus.

为什么值消失？我假设它是清理资源WPF子系统的任务！？我怎样才能避免这种情况？我也觉得它可能会放慢我的应用程序。

Why is the value disappearing? I'm assuming it is a WPF sub system task that cleans up resources!? how can I avoid this? I also feel it might be slowing down my app.

推荐答案

下面是创建的TabControl的一个子类的解决方案。

Here is a solution that creates a subclass of the TabControl.

http://eric.burke.name/dotnetmania/2009/ 4月26日/ 28年9月22日