http://stackoverflow.com/questions/26136593/infragistics-datagrid-when-edit-text-hide
Thanks for help.
Hello Jean-Pascal,
I am just checking if you require any further assistance on the matter.
Sincerely,
Krasimir, MCPD
Developer Support Supervisor - XAML
Infragistics
www.infragistics.com/support
Thank you for your post. I have been looking into the behavior that you are getting and it is possible to be caused by a style without a key for TextBox. The XamTextEditor uses a TextBox in it and if you have a style without key that is setting the Margin of the TextBox, this style will affect the TextBox inside the XamTextEditor and to shift the TextBox to appear as in the screenshots that you have attached. I have created a sample application that uses the xaml form yourpost and if I add a style for the TextBox that sets the Margin, in the Resources of the Window, I am getting the same appearance as you described.
In order to override this behavior you can create a new style for the TextBox that resets the Margin to 0 and add it in the Resources of the XamDataGrid. This way, you will override the other style that is causing the issue.
Please let me know if you need any further assistance on the matter.