SharePoint CMAL方式处理的 增，删，查，改

 SPContext.Current.Web.Lists["UserInfo"]：获取网站的List,名称是：UserInfo

 userlist.AddItem():添加数据到List里

 user.Update():将数据保存到List里，更新的List里的数据

 GetItemById：获取当前行的ID

 query.Query (XML的方式条件):过滤查询条件

增

  protected void bt_SaveClick(object sender, EventArgs e)
        {
            SPList userlist = SPContext.Current.Web.Lists["UserInfo"];
            SPListItem user = userlist.AddItem();
            user["Title"] = this.tx_Title.Text;
            user["UserName"]  = this.tx_UserName.Text;
            user["Gender"] = this.tx_Gender.Text;
            user["Tell"]  = this.tx_tell.Text;
            user["Adress"]  = this.tx_adress.Text;
            user.Update();
           
            base.Response.Redirect("UserInfoList.aspx");
        }

删

   protected void bt_DeleteClick(object sender, EventArgs e)
        {
            using (Site9527EntitiesDataContext dataContext = new Site9527EntitiesDataContext(SPContext.Current.Web.Url))
            {
                SPList userList = SPContext.Current.Web.Lists["UserInfo"];
                SPListItem user = userList.GetItemById(Convert.ToInt32(tx_Del.Text));
                user.Delete();
            }
            tx_Del.Text = "";
            bt_SelectClick(sender, e);
        }

查

  public void bt_SelectClick(object sender, EventArgs e)
        {
            StringBuilder html = new StringBuilder();
            SPList userList = SPContext.Current.Web.Lists["UserInfo"];
            SPListItemCollection users = null;
            if (!string.IsNullOrEmpty(tb_UserName.Text))
            {
                SPQuery query = new SPQuery();
                query.Query = "<Where><Contains><FieldRef Name='UserName' /><Value Type='Text'>" + tb_UserName.Text + "</Value></Contains></Where>";
                users = userList.GetItems(query);
            }
            else
            {
                users = userList.Items;
            }

            foreach (SPListItem user in users)
            {
                html.Append("<tr>");
                html.Append("<td>" + user.Title);
                html.Append("</td>");
                html.Append("<td>" + ConvertoString(user["UserName"]));
                html.Append("</td>");
                html.Append("<td>" + ConvertoString(user["Gender"]));
                html.Append("</td>");
                html.Append("<td>" + ConvertoString(user["Tell"]));
                html.Append("</td>");
                html.Append("<td>" + ConvertoString(user["Adress"]));
                html.Append("</td>");
                html.Append("<td>" + ConvertoString(user["ApprovalStatue"]));
                html.Append("</td>");
                html.Append("<td>" + ConvertoString(user["ApprovalBy"]));
                html.Append("</td>");
                html.Append("<td><a  id='a_update' onclick='Update(" + user.ID.ToString() + ")'>更新</a>  <a  id='a_delete' onclick='Delete(" + user.ID.ToString() + ")'>删除</a>");
                html.Append("</td>");
                html.Append("</tr>");
            }
}

改

  protected void bt_SaveClick(object sender, EventArgs e)
        {
            SPList userlist = SPContext.Current.Web.Lists["UserInfo"];
            SPListItem user = userlist.GetItemById(Convert.ToInt32(Request.QueryString["ID"]));
            user["Title"] = this.tx_Title.Text;
            user["UserName"] = this.tx_UserName.Text;
            user["Gender"] = this.tx_Gender.Text;
            user["Tell"] = this.tx_tell.Text;
            user["Adress"] = this.tx_adress.Text;
            user.Update();
            
            base.Response.Redirect("UserInfoList.aspx");
        }