如何使用PRISM从wpf mvvm中的一个页面导航到另一个xaml页面

问题描述

你好，任何人都可以给出任何例子

Hi can anyone give any example

推荐答案

private Page _PageToNavigate;
public Page PageToNavigate
{
   get { return _PageToNavigate; }
   set { _PageToNavigate = value; OnPropertyChanged("PageToNavigate"); }
}

并将此属性绑定到视图中的Frame的Content属性，例如，

And bind this property to Frame's Content property in your view like,

<frame x:name="Browser" content="{Binding PageToNavigate}" xmlns:x="#unknown" />

现在，您只需要指定要导航到 PageToNavigate 属性。它定义了 OnPropertyChanged ，因此无论在何处使用此属性，都会使用当前指定的值（即页面）更新它。

Now, you just need to assign the page which you want to navigate to the PageToNavigate property. It has OnPropertyChanged defined, so wherever this property is used, everywhere it gets updated with the currently assigned value (i.e., page).

In Views (We have a Commands.cs file that contains all of these):

public static RoutedCommand NavigateHelp = new RoutedCommand();
In the Page contstructor, you can connect the two:

CommandBindings.Add(new CommandBinding(Commands.NavigateHelp, NavigateHelpExecute));
NavigateHelpExecute can be in the code behind (which is what we do), hook into a ViewModel event handler, or whatever. The beauty of this is that you can disable other navigation like so:

CommandBindings.Add(new CommandBinding(NavigationCommands.Refresh, null));

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