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Issue with some namespaces in the assembly Syncfusion.Diagram.Base (ESSENTIAL studio version10.4.0.71)

Thread ID:





106819 Jan 28,2013 09:54 AM UTC Jan 31,2013 11:46 AM UTC WinForms 1
Tags: Diagram
Santhosh A V
Asked On January 28, 2013 09:54 AM UTC

Hi all,
We are new to this website & usage of SYNCFUSION products.We have a C#.NET project (a fairly old project ) which uses Syncfusion Assemblies (version now we want to use the latest version i.e.

We downloaded the installer for the latest Essential studio & installed it using an 30-day Evaluation key..Few projects got compiled succesfully & in one of projects it throwing the following three errors..& we couldn't proceed further to compile other projects bcoz of  linear & circular dependencies b/w the projects.

  • The type or namespace name 'NodeCollectionEventArgs' could not be found (are you missing a using directive or an assembly reference?)
  •  The type or namespace name 'PropertyEventArgs' could not be found (are you missing a using directive or an assembly reference?)
  •  The type or namespace name 'MoveEventArgs' could not be found (are you missing a using directive or an assembly reference?)

But we didn't face this issue with this same project when we compiled it using Syncfusion Essential Studio assemblies.We came to know that the above mentioned TYPES belong to the namespace SYNCFUSION.WINDOWS.FORMS.DIAGRAM which is a part of SYNCFUSION.DIAGRAM.BASE.dll.

We used the reflector to open SYNCFUSION.DIAGRAM.BASE.dll & then opened the SYNCFUSION.WINDOWS.FORMS.DIAGRAM namespace & there we found that the above mentioned types are not present , which was there in version of essential studio.(we opened the assemblies in reflector to compare & cross-check)

So , plz let us know in which new version release these types were removed or replaced , bcoz we went through the release notes of the latest version (i.e10.4.0.71) & also the release notes of the previous versions , but couldn't find any information regarding the above types.

So,kindly help us by giving some useful suggestions on how to solve this issue so that we could in future switch over to the latest version of the syncfusion essential studio at the earliest.

Note:At present we just downloaded the evaluation vesrion of just to check how projects work with new essential studio assemblies.


Santhosh A V

Amsath Ali M [Syncfusion]
Replied On January 31, 2013 11:46 AM UTC

Hi Santhosh,

Thanks for using Syncfusion products.

Since we have made several API changes to make diagram more stable and maintainable, and the new version of diagram provides more usability and supportability, we suggest you to refer the following migration documents and make the appropriate changes where it is needed.

The migration document can be downloaded from the below link.
http://www.syncfusion.com/downloads/Support/DirectTrac/101068/Migration Document1346943129.zip

Please follow the procedure in the above migration documents and let me know if it helps.

To know more about the usage of Diagram classes and properties, please visit our below online documentation link:


Please let us know if you have any queries.

Amsath Ali. M



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