webgrid 添加行是不允许相同

webgrid操作 

js

function Save() {
            var grid = igtbl_getGridById("dgList");
            var rows = igtbl_getGridById("dgList").Rows;
          
           // grid.getActiveCells();
            //var hTbl = grid.GetRootTable().getElement();
            //var rows = hTbl.rows;
          
            for (var i = 0; i < rows.length; i++) {
                var row_i = rows.getRow(i).getCellFromKey("STANDARD_TYPE_NAME").getValue();
                for (var j = i + 1; j < rows.length; j++) {
                    var row_j = rows.getRow(j).getCellFromKey("STANDARD_TYPE_NAME").getValue();
                    if (row_i==row_j)
                    {
                        alert('第'+(i+1)+ '行与第'+ (j+1)+ '行相同');
                        return false;
                    }
                    
                        
                }
            }
            alert('保存成功');
            return true;
        }

protected void btnSave_Click(object sender, EventArgs e)
        {
            DataSet staType = dal.STANDARD_TYPE_MANAGE_LIST();
            for (int i = 0; i < this.dgList.Rows.Count; i++)
            {
                if (this.dgList.Rows[i].Cells.FromKey("STANDARD_TYPE_ID") == null || this.dgList.Rows[i].Cells.FromKey("STANDARD_TYPE_ID").Text == null)
                {
                    for (int j = 0; j < staType.Tables[0].Rows.Count; j++)
                    {
                        if (dgList.Rows[i].Cells.FromKey("STANDARD_TYPE_NAME").Text == staType.Tables[0].Rows[j]["STANDARD_TYPE_NAME"].ToString())
                        {
                            dgList.Rows[i].Cells.Clear();
                        }
                    }

                }
            }
            for (int i = 0; i < this.dgList.Rows.Count; i++)
            {
             
                if (this.dgList.Rows[i].Cells.FromKey("STANDARD_TYPE_ID") == null || this.dgList.Rows[i].Cells.FromKey("STANDARD_TYPE_ID").Text == null)
                {
                    if (this.dgList.Rows[i].Cells.FromKey("STANDARD_TYPE_NAME").Text != null)
                    {
                        int out_id = -1;
                        dal.STANDARD_TYPE_ADD(this.dgList.Rows[i].Cells.FromKey("STANDARD_TYPE_NAME").Text, out out_id);
                    }
                }
                else
                {
                    
                    

                    dal.STANDARD_TYPE_UPDATE(Int32.Parse(this.dgList.Rows[i].Cells.FromKey("STANDARD_TYPE_ID").Text), this.dgList.Rows[i].Cells.FromKey("STANDARD_TYPE_NAME").Text);
                }
            }
            string[] str = this.txtDeldg.Text.Split('$');
            for (int j = 0; j < str.Length; j++)
            {
                if (str[j].Trim().Length > 0)
                {
                    dal.STANDARD_TYPE_DEL(Int32.Parse(str[j]));
                }
            }
            BindData();
            //ETime.Web.JavascriptHelper.MessageBox(this, "保存成功");
            Response.Write("<script>window.returnValue=1;window.open=null;window.close();</script>");
        }