Button1.Attributes.Add() 方法小结



//首先要在PageLoad()事件中注册属性
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Button1.Attributes.Add("onclick", "return checkSame()");//为Button1添加onclick()事件 ,Button为服务器控件
        }//注意:checkSame()这是一个写在aspx面页的js函数,必须有返回值,为:true 或 false
    }

//接着写Button1的onclick事件,如果刚才的checkSame()返回为true则招行下面的事件,否则不执行

    protected void Button1_Click(object sender, ImageClickEventArgs e)
    {
        SqlParameter[] Params = new SqlParameter[2];
        Params[0] = dbs.MakeInParams("@uid", SqlDbType.VarChar, 10, Session["Uid"].ToString());
        Params[1] = dbs.MakeOutParms("@Upwd", SqlDbType.VarChar, 10);
        if (dbs.ExecuteNonQuery(CommandType.StoredProcedure, "selectPwd", Params) > 0)
        {
            string userPwd = Params[1].Value.ToString();
            if (userPwd != this.old_pwd.Text)
            {
                Response.Write("<script>alert('原始密码错误!')</script>");
            }
            else
            {
              
            }
        }
        else
        {
            ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('操作失败!')</script>");
        }

    }

//呵呵。。再写一个js试例吧
      function checkSame()
    {
      var Obj1=document.getElementById ("new_pwd").value;
      var Obj2=document.getElementById ("re_new_pwd").value;
     
      if(Obj1!=Obj2)
       {
          alert("两次密码输入不一致!");
          document.getElementById("new_pwd").focus();
          return false;
       }
       else
       {
         return true;
       }
    }
原文地址:https://www.cnblogs.com/ahjesus/p/1998646.html