带有点击事件的 XamlReader
我在我的 WPF 项目中使用 XamlReader。它有效（我的参考）
我当前的示例Xaml是这样的：
<Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" Width="800" Height="600">
<Button Name="Test1" Content="Test1" Width="357" Height="88" Margin="14,417,0,0" ></Button>
<Button Name="Test2" Content="Test2" Width="357" Height="88" Margin="14,529,0,0" ></Button>
</Grid>
并添加按钮的单击事件，如下所示：
button = LogicalTreeHelper.FindLogicalNode(rootObject, "Test1") as Button ;
button.Click += new RoutedEventHandler(Button1_Click);
是否可以这样编写xaml？
<Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" Width="800" Height="600">
<Button Name="Test1" Content="Test1" ... Click="Button1_Click"></Button>
<Button Name="Test2" Content="Test2" ... Click="Button2_Click"></Button>
</Grid>
I am using XamlReader in my WPF project. And it works (My reference)
My current sample Xaml is like that:
<Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" Width="800" Height="600">
<Button Name="Test1" Content="Test1" Width="357" Height="88" Margin="14,417,0,0" ></Button>
<Button Name="Test2" Content="Test2" Width="357" Height="88" Margin="14,529,0,0" ></Button>
</Grid>
and adding button's click event like this:
button = LogicalTreeHelper.FindLogicalNode(rootObject, "Test1") as Button ;
button.Click += new RoutedEventHandler(Button1_Click);
Is it possible to write xaml like this?
<Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" Width="800" Height="600">
<Button Name="Test1" Content="Test1" ... Click="Button1_Click"></Button>
<Button Name="Test2" Content="Test2" ... Click="Button2_Click"></Button>
</Grid>
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XamlReader.Load在其中附加eventHandlers。因此，请使用此技术将eventHandlers动态附加到它。1- 编写不带
eventHandlers的 Xaml 字符串 - 但编写这些控件的 Name 属性。2- 使用
XamlReader.Load(str);加载字符串3- 然后从中加载 DataTemplate 的内容。 using
Grid template = ((Grid)(dt.LoadContent()));注意：这里
Grid是DataTemplate中的父控件。4- 按名称找到要附加事件处理程序的控件。
Button img = (Button)template.FindName("MyButtonInDataTemplate");我希望它有帮助。
XamlReader.Loadnot allowed to attacheventHandlersin it. so use this technique to dynamically attach theeventHandlersto it.1- Write your Xaml string without
eventHandlers-But write the Name property of those Controls.2- Load the string with
XamlReader.Load(str);3- Then load the content of DataTemplate from it. using
Grid template = ((Grid)(dt.LoadContent()));Note: here
Gridis the parent Control inDataTemplate.4- Find the Control by Name you want to attach the Event Handler.
Button img = (Button)template.FindName("MyButtonInDataTemplate");I hope it helps.
不可以。您无法使用原始 XAML 在运行时保存事件或加载事件。这是 XAML 序列化的限制，因为序列化的 XAML 是独立的，这意味着每个资源都应该在原始 XAML 中加载，而事件的代码逻辑则不然。点击此处了解更多信息
No. You can't save events or load them at run-time using raw XAML. It's a limitation of XAML Serialization, as serialized XAML is self-contained, means every resource should be in raw XAML to load and event's code logic is not . Read more here