GridView 循环判断是否有重复,并循环保存

Class2 cl2 = new Class2();
        string temp = "";
        for (int i = 0; i < GridView1.Rows.Count; i++)
        {
            if (((TextBox)GridView1.Rows[i].FindControl("textbox1")).Text.ToString().Trim() == "")
            {
                Response.Write("<script>alert('" + Convert.ToString(GridView1.Rows[i].RowIndex) + "+行不能空11')</script>");
                return;               
            }
            else
            {

                temp = ((TextBox)GridView1.Rows[i].FindControl("textbox1")).Text.ToString().Trim();
                //tempindex = Convert.ToString(GridView1.Rows[i].RowIndex);
                for (int j = i + 1; j < GridView1.Rows.Count; j++)
                {
                    if (temp.Equals(((TextBox)GridView1.Rows[j].FindControl("textbox1")).Text.ToString().Trim()))
                    {
                        Response.Write("<script>alert('" + (i + 1) + "与" + (j + 1) + "行重名')</script>");
                        return;
                    }
                }
                for (int ii = 0; ii <= GridView1.Rows.Count - 1; ii++)
                {   //cl2.updatefolder(string user, string name, string nameid)
                    cl2.updatefolder(id, ((TextBox)GridView1.Rows[ii].FindControl("textbox1")).Text.ToString().Trim(),GridView1.DataKeys[GridView1.Rows[ii].RowIndex].Value.ToString()); //

                }
            }
        }
       
        this.GridView1.DataSource = cl2.favoriteFolder(id);
        this.GridView1.DataKeyNames = new string[] { "folderid" };
        this.GridView1.Columns[0].Visible = false;
        this.GridView1.DataBind();