Issue while calling MultiColumnComboBoxElement.ShowPopup() method

[Surya]

Hi,

 As my Multi-Column combo box  contains huge(records in  lakhs) data , i am binding Corresponding data on enter key ,after typing  data in Multi-Column combo box control .
After binding data ,i am  calling MultiColumnComboBoxElement.ShowPopup()  method then i am getting error, i am unable to reproduce this issue every time.
Even i am unable to capture scenario. 
Please see attached image ,check if you people can do any help for me .

Thanks.

[Stefan]

Hello Surya,

Thank you for writing.

I was not able to reproduce the error on my end too, so I cannot determine what causes it. If you manage to get a reproducible case, do not hesitate to get back to me with it. 

Meanwhile, what I can suggest is to use the DataBindingComplete event for your ShowPopup() call and see if this works for you.

I hope this helps. 

Greetings,
Stefan
the Telerik team