[CLOSED] Gridpanel columns move with locked = true

[PoloTheMonk]

Hi,
on loading page I need to move column programmatically.
The code that I use is this

grid.ColumnModel.Move(0, 10)

(move columns with index 0 to position 10)

all work fine, but if in my page there is one or more columns with Locked="True"
I get this error

You have to set widget's ID to call its methods (widget - Ext.Net.GridHeaderContainer)
System.Exception: You have to set widget's ID to call its methods (widget - Ext.Net.GridHeaderContainer)

The problem occours every time that I move a locked column or a non locked column.
Is there a smart solution?

I've tryed to set all columns to Locked="False", move, and reset it to Locked="True" but the new error is this

Uncaught TypeError: Cannot read property 'move' of undefined

Thanks in advance
Polo