Remove all columns

[Mike]

I'd like to remove all columns from my grid at run-time and completely rebuild it. I can't do:

            foreach (var column in GridQueue.Columns)
            {
                GridQueue.MasterGridViewTemplate.Columns.Remove(column);
            }

because the Remove changes the iteration and it throws "Collection was modified; enumeration operation may not execute."

Suggestions? thanks.

-John
 

[Nick]

Hi John,

Thank you for contacting us. Have you tried that:

GridQueue.MasterGridViewTemplate.Columns.Clear()

Greetings,
Nick
the Telerik team

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[Carlitos]

I have wanted only to remove one column and not all of them and faced this problem. The way to fix this was by doing a ToList() in the foreach like so: 

foreach (var column in GridQueue.Columns.ToList())
{
    GridQueue.MasterGridViewTemplate.Columns.Remove(column);
}

Hope it helps others. 

 

Carlitos

[Dimitar]

Hello Carlitos,

Thanks for sharing this with the community. More information can be found in the following post: c# - How to remove elements from a generic list while iterating over it?

If you have any questions, please do not hesitate to contact us.

Regards,
Dimitar
Telerik by Progress