Dev TreeList 某一列进行格式化显示

private void treeList1_GetNodeDisplayValue(object sender, GetNodeDisplayValueEventArgs e)
        {
            if (e.Column.FieldName == "State")
            {
                if (Convert.ToString(e.Value) == "0")
                {
                    e.Value = "是";
                }
                if (Convert.ToString(e.Value) == "1")
                {
                    e.Value = "否";
                }
            }
            if (e.Column.FieldName == "Position")
            {
                if (Convert.ToString(e.Value) == "0")
                {
                    e.Value = "项目经理";
                }
                if (Convert.ToString(e.Value) == "1")
                {
                    e.Value = "项目成员";
                }
            }
        }