Hi, I'm having a problem with that event when a column is out of margins. When event fires, cell.Control is null.
I need to access data from a custom control inside cell when cell is selected, but also i need to know what cells are selected because user can select multiple cells.
Problem comes using left and right arrows keys, and cell is out of the visible area.
I don't want to lose the navigation with keys between cells.
How can i solve this?
I've attached an example to clarify.And I'm working with XamGrid 11.1.20111.2115.
Thanks in advance.Adrian.
Ok... I figured out how to disable XamGrid Virtualization...
http://help.infragistics.com/NetAdvantage/Silverlight/2011.2/CLR4.0/?page=SL_xamGrid_Virtualization.html
On that link says:
Disabling Virtualization
Virtualization is always on when you set the Height and Width properties of xamGrid or its containing element. If xamGrid does not have a width set, that is, if the control does not have a width and its parent container allows its width to be infinite then xamGrid will not virtualize cells during horizontal scrolling. An example is if xamGrid was inside a horizontal Stack Panel or a Scroll Viewer. Similarly, if the control has no height, such as when it is in a vertical Stack Panel or Scroll Viewer with no height, xamGrid will not virtualize cells and rows during vertical scrolling.
So i put the xamgrid inside a scrollviewer.That solve my problem.
Thank you again Nikolay.You can close this thread.
Thanks for answer Nikolay.
I didn't know about virtualization, i will read it.
I have an Entity with many properties binded to every row and a custom control within in a template column for each cell. That custom control process many properties of the entity and exposes results to dependency properties.I need to read those dependency properties when a cell (or cells) is selected.
In the example i've attached, i've simplified the template column to just a textblock.
Is there a way to deactivate virtualization?
Thank you.
Hi,
This behaviour that you see, the .Control being null is expected. This happens because when a cell is out of view it's being virtualized. You can read more about the virtualization of the XamGrid in this article - http://help.infragistics.com/NetAdvantage/Silverlight/2011.2/CLR4.0/?page=SL_xamGrid_Virtualization.html
If you need to access the value of the cell you can use Value property of the cell.
HTH