how to populate an explicitely loaded DataTemplate?

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Lloyd Dupont - 24 Jul 2007 03:34 GMT

I am working on some drag and drop code.
When some data is moved over a target which accept it I want to show a data
preview.

For this I attempt to create an UIElement with the default DataTemplate.
Problem is, I don't know how to setup the UIElement returned by the
DataTemplate! (i.e. setup it binding correctly)

===== pseudo code: =======
IDataObject ido = ......;
object data = ido.GetData("some key");
FrameworkElement target = sender as FrameworkElement;
DataTemplate dt = target.FindResource(data.GetType()) as DataTemplate;
UIElement ui = dt.LoadContent() as UIElement;

// NOW HOW DO I SET UP DATA BINDING?
ui.....= .....
==================

PS: I do need to get the UIElement, as I measure it to position it
relatively to the mouse position.

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Laurent Bugnion, MVP - 28 Jul 2007 21:23 GMT

Hi,

> I am working on some drag and drop code.
> When some data is moved over a target which accept it I want to show a
[quoted text clipped - 17 lines]
> PS: I do need to get the UIElement, as I measure it to position it
> relatively to the mouse position.

Databinding in code is done using the Binding class:
http://msdn2.microsoft.com/en-us/library/system.windows.data.binding.aspx

There is an example here:
http://msdn2.microsoft.com/en-us/library/ms742863.aspx

Is that what you're after?

HTH,
Laurent

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Laurent Bugnion [MVP ASP.NET]
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Lloyd Dupont - 30 Jul 2007 00:56 GMT

> Databinding in code is done using the Binding class:
> http://msdn2.microsoft.com/en-us/library/system.windows.data.binding.aspx
[quoted text clipped - 3 lines]
>
> Is that what you're after?

Not really, but....

1. thanks for answering
2. I found what I need:

--- get the data ---
IDataObject ido = ......;
object data = ido.GetData("some key");

--- show it with the default template ---
ContentControl c = new ContentControl();
c.Content = data;

c.Content could be anything, unlike what the documentation states (UIElement
or string)

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Laurent Bugnion, MVP - 30 Jul 2007 08:54 GMT

Hi,

> --- get the data ---
> IDataObject ido = ......;
[quoted text clipped - 6 lines]
> c.Content could be anything, unlike what the documentation states
> (UIElement or string)

I just understood what you were trying to do!! Sorry for not getting it
faster :-)

Laurent

Signature

Laurent Bugnion [MVP ASP.NET]
Software engineering, Blog: http://www.galasoft.ch
PhotoAlbum: http://www.galasoft.ch/pictures
Support children in Calcutta: http://www.calcutta-espoir.ch

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Lloyd Dupont - 30 Jul 2007 14:12 GMT

> I just understood what you were trying to do!! Sorry for not getting it
> faster :-)

No worries!
My explanations might have been confusing I admit.... ;-)

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how to populate an explicitely loaded DataTemplate?

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