Let's assume that I've got XAML representing a Grid with some children in it, each child is a different control, with a x:Name. How do I "get" those controls from code by name ?
+1
A:
Each control with an x:Name has a field created for it in the partial class that gets created for the XAML. This field has an internal accessibility. Hence from code with in the "code-behind" cs (why do I hate that term?) you can simply use the control name directly in code to access it.
AnthonyWJones
2009-08-16 21:19:14
Would you be so kind and elaborate that?
Maciek
2009-08-17 05:30:47
I think he means, if you have x:Name="MyNamedControl". Once you compile it, the Reference.g file will automatically have it availble so you can just type this.MyNamedControl
Paully
2009-08-22 01:22:59
But if you are doing templating, this won't happen and you should use FindName
Paully
2009-08-22 01:23:45
+2
A:
If the code that you are writing is in the code-behind file for the xaml file, then Visual Studio should automatically generate member variables containing references to any named elements in the xaml file. So if you have a Button with x:Name="myButton", you can access this button via this.myButton.
If you want to reference a named element from somewhere other than the code-behind file, you can call FindName on the element to the named element, e.g.:
Button myButton = myGrid.FindName("myButton") as Button;
where myGrid is a reference to the Grid in question.
KeithMahoney
2009-08-17 06:28:18
woot! this works. I found an alternative which is a bit more complex but works as well :private Button myButtnon;foreach(FrameWorkElement fe in myGrid.Children){ if(fe.GetType() == typeof(Button) myButton = fe as Button;}
Maciek
2009-08-17 07:26:20
Note that myButton would be a field with internal accessibility hence even from code outside the code-behind file you can access it without resorting to FindName.
AnthonyWJones
2009-08-17 11:43:31