Hello Christian Muggli,
Everything seems ok in your code. You can feed the ImageColumn with bytes array and it should work OK . Without having the code of your project I may only guess what causes the trouble but here are some thoughts :
The problem may be in the asynchronous nature of the service - the data may come a bit later when the column is already initialized . This can be easily checked - for your mediator class please inherit and implement the INotifyPropertyChanged
interface. This way RadGridView will sense any on-the-fly changes and will update the ui (e.g. if data comes a bit later ) .
If this does not solve the problem I may be in help the following ways :
1. You can open a support ticket and send me you project so I can try fix it for you. ( any content/code will be treated as confidential).
2. If 1. is not applicable , you may just paste me as much relevant code as possible here so I can try to resemble the problem here.
the Telerik team
Watch a video
on how to optimize your support resource searches and check out more tips
on the blogs.
Follow the status of features or bugs in PITS
and vote for them to affect their priority.