当元素位于DataTemplate中时，如何在WPF中生成多个计时器？

Question

How can I manage to access objects in Code Behind from Window.Resources?

Follow-up:

Actually, I'm trying to generate multiple timers. How can I properly to do it in WPF if my elements are inside a DataTemplate?

Answer 1

To find control inside template/datatemplate use FindName method.

http://msdn.microsoft.com/en-us/library/system.windows.frameworktemplate.findname.aspx

EDIT:

Or you could use class and TwoWay binding to set text or whatever you need.

class MyCustomTimer : INotifyPropertyChanged
{
    string title { get; set; }
    DispatcherTimer timer { get; set; }
    ...
}

Bind in template with TwoWay binding:

<TextBox Text={Binding title, Mode=TwoWay} />

Add class to listview:

this.listview.items.add(new MyCustomTimer(...));

And then access values in datatemplate like:

MyCustomTimer item0 = this.listview.Items[0] as MyCustomTimer;

item0.title = "This is text";

Answer 2

As i can think for it. no you can't access the elements inside aa datatemplate. A DataTemplate is just a representation /xaml view of the managed object. so if you have something which is useful to you. I recommend you to use the Custom control and create some TemplateParts for it. by this way you can get the template part from the code .

Other thing you can do is use the VisualTreehelper class this will give you the parents and childs from the elements.