CheckedListBox2 InvalidOperationException

CheckedListBox2 InvalidOperationException

Posted by: davidmorr on 5 October 2017, 8:22 am EST

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  davidmorr

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  Posted 5 October 2017, 8:22 am EST

  I created a new VB.NET 2015 project with no code. Added a CheckedListBox2 control and edited the control to contain the months of the year. I compiled and ran but received an InvalidOperationException error. I’m attaching the source code and a text file that contains the full details of the error. I set this to .Net Framework 2.0 and referencing C1.Win.C1Input.2 Version 2.0.20163.212. I’m looking for the control that is like a drop down combo list with check boxes beside the items. I tried on newer Framework versions to no avail.C1SpecialControl2.zip

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  meenakshi.singh

  

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  Posted 6 October 2017, 3:10 am EST

  Hi David!

  As mentioned on the corresponding case in SupportOne, you can meet your requirements of a control with checkbox by using C1DropDownControl, creating a custom form (inheriting DropDownForm) and setting it to C1DropDownControl’s DropDownForm.

  Regards,
  
  Meenakshi