Further to Jo's answer, yes, the article link he has pointed you to does not give you the exact answer that you want however it does show you how to animate. The same principle applies. You need to take that and write the code or use the answer and do the research.
So, use Google Search and look for pointers, like:
*
wpf change size animation[
^]
*
wpf datagrid add row animation[
^]
* and so on ...
UPDATE
As I mentioned above, you need to do your research.
My
other answer today[
^] that you accepted had a link to the
DataGrid
default template[
^]. If you study it, you will see that all of the items are managed in the
ItemsControl
template. So I did a quick google search:
wpf animate add to items panel[
^]
Which found this article:
WPF ItemsControl with animation on insert – asimplify – aSimplify[
^]
Now, this is not for the
DataGrid however the same principle applies. Without trying, I would think that you would just need to change the animation direction and the code should work.