func init
	if(isdef("DataGrid"))
		warning(this.name + ' - manager does not defined')
	else
		this.grid = sys.get_undef_manager("DataGrid")
		if(linked("doGetCell") and linked("Value"))
			sys.add_var(this.name, 'Object')
		end
		if(linked("onError"))
			this.setfield('ex', 'ex' + this.id)
		end
	end
end

func make_value(data)
	return(this.grid + '[' + d("ColumnIndex") + ', ' + d("RowIndex") + '].Value')
end

func doGetCell(data)
	if(len(this.grid))
		linked("onError") ? blk.println('try {').inc() : ''
			if(linked("Value"))
				blk.println(this.codename, ' = ', make_value(data), ';')
				event("onValue", this.codename)
			else
				event("onValue", make_value(data))
			end
			event("onCell", this.grid + '[' + d("ColumnIndex") + ', ' + d("RowIndex") + ']')
		if(linked("onError"))
			blk.dec().println('} catch(Exception ', this.ex, ') {').inc()
				event("onError", this.ex + '.Message')
			blk.dec().println('}')
		end
	end
end

func doSetCell(data)
	if(len(this.grid))
		linked("onError") ? blk.println('try {').inc() : ''
			dt = d("Data")
			blk.println(this.grid, '[', d("ColumnIndex"), ', ', d("RowIndex"), '].Value', ' = ', dt, ';')
		if(linked("onError"))
			blk.dec().println('} catch(Exception ', this.ex, ') {').inc()
				event("onError", this.ex + '.Message')
			blk.dec().println('}')
		end
	end
end

func Value
	if(linked("doGetCell"))
		return(this.codename)
	else
		return(make_value())
	end
end