LOCAL oCol as column, oGrid as grid
Grid::refresh
this.RecordSource = ''

this.columncount = -1	&& Remove all columns

this.Columncount = FCOUNT()	&& Create new default columns
for each oCol in this.Columns
	oCol.removeobject('TextBox1')
	oCol.addobject('TextBoxCustom1','cTextBoxCustom')
ENDFOR

this.RecordSource = ALIAS()