Hi Alin, 

Sorry for the delayed response. 

Do you have a sample that shows this issue that i can look at?

Thanks,
-SteveZ

Hello,

Yes, the tooltip is always displaying - no problem in here, but I don't have any binding issues in my output window for this case. I just don't receive the value from the model itself (as I mentioned I have a DP and a callback method with a breakpoint set) through binding, if I use a custom user control in the tooltips template. Is this an issue? Thanks

Hi, 

I'm not really sure, whats happening from what you're describing. 

Is the tooltip displaying at all? If so, when you're debugging, are there any binding error messages being displayed in the output window when you display the tooltip over a cell?

-SteveZ

Thanks again, I believe I'm on the right track using Tooltips as mentioned in your link as I'm using v10.2 of the controls, but I've got an issue with the tooltips when using a custom template for the tooltip that is UserControl and I hope you can help me out.

For example, I have a Usercontrol named DisplayUser in which I have a dependency property named UserID. Now, setting this control in a datatemplate for the Column's TooltipContentTemplate has no effect on my bound UserID property (I was expecting to get in the propertychanged callback method for the DP when hovering a cell):
<DataTemplate>
           <local:DisplayUser UserID="{Binding ID}"/>
</DataTemplate>.

I set a breakpoint in the prop changed callback of the DP, but it doesn't get there (only in the constructor of this class when I hover the cell). I need somehow to retrieve the bound property's value (in my case ID's value from the model) whenever it shows the tooltip as I am doing some calculations with this value. If I use a simple textblock/label, of course I get the content of the tootlip displayed correctly, but not in the case of a custom UserContorl I made. Can you help me out with this one?