如何在动态数据模板中添加处理程序
我成功地在后面的代码中声明了一个数据模板，如下所示：
private static DataTemplate CreateTemplate(string sortMemberPath, HorizontalAlignment horzAlignment)
{
const string xamlFormat
=
"<DataTemplate xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\" >"
+ "<StackPanel > "
+ " <TextBlock Margin=\"2,0\" VerticalAlignment=\"Center\" HorizontalAlignment=\"_HALIGNMENT_\" "
+
" Text=\"hello there\"> "
+ " </TextBlock> "
+ "</StackPanel>"
+ "</DataTemplate>";
return (DataTemplate) XamlReader.Load(xamlReturned);
}
但现在我想通过更改以下行来添加大小更改处理程序：
+ "<StackPanel > "
我
+ "<StackPanel SizeChanged="SizeChangedHandler" > "
在后面的代码中声明了方法“SizeChangedHandler”。当控件尝试在运行时加载时，这会导致 xaml 解析错误。我怀疑它找不到处理程序“SizeChangedHandler”。我怎样才能指定这个处理程序，以便 xaml 解析器满意。
I am successfully declaring a data template in a code behind as follows:
private static DataTemplate CreateTemplate(string sortMemberPath, HorizontalAlignment horzAlignment)
{
const string xamlFormat
=
"<DataTemplate xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\" >"
+ "<StackPanel > "
+ " <TextBlock Margin=\"2,0\" VerticalAlignment=\"Center\" HorizontalAlignment=\"_HALIGNMENT_\" "
+
" Text=\"hello there\"> "
+ " </TextBlock> "
+ "</StackPanel>"
+ "</DataTemplate>";
return (DataTemplate) XamlReader.Load(xamlReturned);
}
But now I want to add a size changed handler by changing the line:
+ "<StackPanel > "
to
+ "<StackPanel SizeChanged="SizeChangedHandler" > "
I have the method "SizeChangedHandler" declared in the code behind. This results in a xaml parse error when the control attempts to load at runtime. I suspect that it can't find the handler "SizeChangedHandler". How can I specify this handler so that the xaml parser is happy.
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您可以尝试类似的操作：
编辑：
好的，对于 Silverlight，您可以尝试使用 LoadContent 方法返回 DataTemplate 和可以附加事件的 UIElement。抱歉，我没有准备好 VS 来测试它是否可以工作。
You could try something like:
Edit:
Ok, for Silverlight you could try with the LoadContent method of the DataTemplate that returns and UIElement to which you can atach the event. Sorry I don't have VS ready to test and see if it works atm.