NullReference exception when resizing node in Diagram View

[Steve McWilliams]

I took over a project recently that opens up a diagram view on components in our system, so I am not that familiar with how Diagram works.

It appears that after we upgraded from Syncfusion 10.304.0.43  to version 13.4.0.58, that we started getting a Null Reference exception when resizing a node by dragging one of its corners. It happens in UpdateLabelSize() method.

We are now using version 15.7.0.40, but error still occurs.

We did not change any code on our side.

Is there a known fix for this issue ? Do I have to change something on my side in a resize event ?

I've attached some images and the error trace to show what happens.

Attachment: DiagramResize_9af8085d.zip

[Ranjitha Amirthalingam]

Hi Steve, 

 

Thanks for contacting Syncfusion support. 

 

We have analyzed from the provided screenshot that you have overridden the Node template. We have made changes in the Node template in the newer version. This causes an exception at your end since you have used the older template. We have provided our newest Node template. Please refer to the template from the below link. 

 

Link: http://www.syncfusion.com/downloads/support/forum/132856/ze/Node_Template913543474 

 

 

Could you please share your template? So that we will modify the template with respect to the new template. 

 

Regards, 

Ranjitha A. 

[Steve McWilliams]

That code is so different from what I had, I wasn't sure what templates on my side were even relevant.

I attached the XAML files that had template code. Don't think they probably all need changing.

Attachment: DiagramXaml_b826c6d8.zip

[Ranjitha Amirthalingam]

Hi Steve, 

 

We have confirmed that the reported issue “Exception occurs while resize the Node “as an issue and a support incident has been created under your account to track the status of this issue. Please log on to our support website to check for further updates. 

 

https://www.syncfusion.com/account/login?ReturnUrl=/support/directtrac/incidents 

 

Regards, 

Ranjitha A.