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Making Columns Read Only by Column ID

re making a column read only below

You can define onEdit event and block edit operation for necessary column, it will work for all excells, including checkboxes

mygrid.attacEvent("onEditCell",function(stage,rid,cind){
if (cind==CHECKBOX_COLUMN) return false;
});

I need to be able to do this by referring to the ColumnID rather then the Index -how do I, I have tried various way but with no luck, just think I am missing something in the syntax.

Scott

There is a getColumnId function which is reverse of getColIndexById and returns id by index
 
mygrid.attachEvent("onEditCell",function(stage,rid,cind){
    if (this.getColumnId(cind)==COLUMN_ID) return false;
});

where COLUMN_ID - id of column in question