[Solved] Dynamically created detail table columns disappear when expanding another row

[DJ]

Hello there,

I am binding the detail table to a dynamic object so I don't have any sense of what columns are going to appear so I have implemented this through dynamic columns on the grid's DetailTableDataBind method before I bind it to the datasource. This worked fine and all the columns are created accordingly but when I select/expand another row, all my dynamic columns (on the previously selected row) disappears. I have tried creating the columns on the ItemDataBound method as well but to no avail. Any thoughts?

Thanks,
DJ 

[Viktor Tachev]

Hello,

Based on the description you provided it would be hard to point you to the reason for the issue. Could you send a runnable project where the problem is observed? This would enable us to better understand the scenario you have and provide you with the best possible solution. You could open a formal support ticket and send the project as attachment or you could share the code in this thread as a code block.

I am looking forward to your reply.

Regards,
Viktor Tachev
Telerik

[DJ]

I found the cause of the issue - the grid does not save the columns in the viewstate if there isn't any explicit column definitions for it. I fixed it by explicitly defining columns on the markup and just toggling the display property appropriately.