jqGrid cell in edit mode only for inline add

Question

How can I enable one column to be editable only if it's in a new row? This column must be read-only in existing rows when in edit mode.

The editable attribute works for new and existing rows.

Answer 1

What is the type of editing are you using? Form editing or inline editing?

If it is form editing you can use beforeShowForm event to hide the non-editable fields from the edit form.

beforeShowForm:function(formid)
{
 id="#tr_"+columnName(as given in column model);
 $(id, form).hide();
}

you need to make the hidden fields visible in add form again by using the same event

beforeShowForm:function(formid)
 {
  id="#tr_"+columnName(as given in column model);
  $(id, form).show();
 }

If it is inline editing before calling editRow, set editable flag to false

$('#gridId').jqGrid('setColProp',columnName,{editable: false}); 

and after editRow was over reset the editable flag to true to make editable for newly added rows

$('#gridId').jqGrid('setColProp',columnName,{editable: true}); 

Hope it helps....