Hi Kess,
You can combine the Syncfusion assemblies in to a single assembly as you mentioned using the ILMerge.
But while doing so, you need to include the Syncfusion.Core in the project reference along with the merged assembly in the application(though you have used the Syncfusion.Core in the merged assembly). This is because the Syncfusion.Core has the licensing code to use the Syncfusion controls.
Only then, if you are using any Syncfusion controls with the help of any of the merged assemblies, then the licensing script will be executed and your application will be licensed for that Syncfusion control. Once you include the Syncfusion.Core and run the project, you will get a Licensing error message. Follow the last four steps in the below KB.
http://www.syncfusion.com/support/kb/studio/Default.aspx?ToDo=view&questId=35If the licensing error comes every time, you can refer the KB from the beginning. Please refer to this
image for how the Solution Explorer in my sample looks like.
Please try this and let me know if this helps.
Regards,
Nanda