Posted 13 March 2023, 9:38 pm EST
Hi,
Apologies for the delay in response. In the older versions, the C1FlexGrid control worked with only the C1.Win.C1FlexGrid.dll assembly referenced. But in the latest version, it also requires a reference to the C1.Win.dll assembly in the project. Therefore, please make sure to add a reference to this assembly from the location C:\Program Files (x86)\ComponentOne\WinForms Edition\bin\v4.8 in your system
Also, the System.ComponentModel.ISupportInitialize is defined in the System assembly, and therefore, make sure that your project contains a reference to this assembly as well.
If the issue persists, please create a sample project and drag-drop the C1FlexGrid control to see if you still face the issue. If yes, please share the sample project. If not, please share a stripped-down version of your project, so we can investigate further and assist you better.
Best Regards,
Kartik