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templates in silverlight

Posted on 2008-06-20
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Last Modified: 2013-11-12
Hi,

Can someone clarify what templates are in silverlight .net  as I am getting confused with what i have got.
These 3 objects do what

ContentTemplate property
ContentControl
 DataTemplate.
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Question by:jagguy
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6 Comments
 
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Expert Comment

by:adler77
ID: 21836345
Templates are used to help when you want to skin and reuse controls. A ControlTemplate is defined in XAML as a resource so that your control can style itself based on that template. For instance, I needed a tab-type control in beta 1, and since there wasn't a tab control yet, I used a template to make radio buttons look like tabs. All I had to do was write some XAML to make it look the way I wanted, and Silverlight handled the rest because internally, since they were radio buttons, I still had access to all of the methods and events that radio buttons get. If I clicked on one tab, the others would automatically become disabled, and so forth.

DataTemplate/ItemTemplate is very useful for controls that access data, like DataGrid or ListBox. Inside your control (lets say ListBox) you would create an ItemTemplate and define how you want things to look for one item. You could databind an image URI to an Image control, a name field to a TextBlock, and add a "Delete" button all at once, and then Silverlight will use that template for as many items that get bound to that list.

For a great example of the DataTemplate/ItemTemplate see ScottGu's Digg example (http://weblogs.asp.net/scottgu/archive/2008/02/22/first-look-at-silverlight-2.aspx). It was made for beta 1, though, so it may not build anymore with beta 2 but at least his tutorial and code will go a long way. For great info on styling controls, see Karen Corby's blog. Start here (http://scorbs.com/2008/06/11/parts-states-model-with-visualstatemanager-part-1-of/) if you like.
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Author Comment

by:jagguy
ID: 21836401
thankyou I  will look over what you said
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Author Comment

by:jagguy
ID: 21845676
I am not understanding how to use contentControl or why you need it. Why have it?

You can display data styled is that the idea?

 It is hard finding a simple example  on this but can someone give me a small code snipper to see it working in .net?
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adler77 earned 500 total points
ID: 21862313
The page for it is here: http://msdn.microsoft.com/en-us/library/system.windows.controls.contentcontrol(VS.95).aspx

Really, it has little to no use when building a Silverlight project. It is a base class that other controls are built from, so you generally use them instead. You probably wouldn't ever use a ContentControl itself.
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Author Comment

by:jagguy
ID: 21864192
i guess if  i was to build my own controls then i see a use but your right , I mean why bother having this control in silverlight?
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