[2008/07/16]code

一品梅 2008-07-16 08:31:20

MyVote.cs

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;



/// <summary>

/// Summary description for Class1

/// </summary>

/// 

namespace MyVote

{

    public class Voting : WebControl,INamingContainer 

    {

        private string voteNumber;

        private int iStarCount = 3;

        private string overImageUrl;

        private string outImageUrl;



        private ImageButton im;



        public event EventHandler Click;





        public string VoteCount

        {

            get { return voteNumber; }

            set { voteNumber = value; }

        }



        public string MouseOver_ImagePath

        {

            get { return overImageUrl; }

            set { overImageUrl = value; }

        }





        public string MouseOut_ImagePath

        {

            get { return outImageUrl; }

            set { outImageUrl = value; }

        }



        public int StarCount

        {

            get { return iStarCount; }

            set { iStarCount = value; }

        }



        protected override bool  OnBubbleEvent(object source, EventArgs e)

        {



            if (e is CommandEventArgs)

            {

                CommandEventArgs ce = (CommandEventArgs)e;

                if (ce.CommandName == "Click")

                {

                    VoteCount  = ce.CommandArgument.ToString();

                   

                    OnClick(ce);



                }



            }

            return true;

        }



        protected virtual void OnClick(EventArgs e)

        {

            if (Click != null)

            {

                Click(this, e);

            }

        }



      

        protected override void CreateChildControls()

        {

           

                  for (int i = 1; i < StarCount + 1; i++)

                    {

                        im = new ImageButton();



                        im.ImageUrl = MouseOut_ImagePath ;



                        im.Attributes.Add("onmouseover", "this.src='" + MouseOver_ImagePath + "';");

                        im.Attributes.Add("onmouseout", "this.src='" + MouseOut_ImagePath + "';");

                        im.AlternateText = i.ToString();

                        im.ID = "but" + i.ToString();

                        im.CommandName = "Click";

                        im.CommandArgument = i.ToString();

                        Controls.Add(im);

                        

                    }

                }

            }

        }

rating.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="rating.aspx.cs" Inherits="rating" %>

<%@ Register TagPrefix="MyBar" Namespace="MyVote" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">



<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

    <title>Untitled Page</title>

    

   

</head>

<body>

    <form id="form1" runat="server">

         <br />

        <strong><span style="font-size: 14pt; font-family: Verdana">Rating Control</span></strong><br />

        <br />

   <br />

    <MyBar:voting runat=server id="RatingCtrl" width="100px"  StarCount="5" MouseOut_ImagePath="star.jpg" MouseOver_ImagePath="starover.jpg" OnClick="RatingCtrl_Click" >

       

    </MyBar:voting>



    <div id="kd">

         <br />

        <br />

        <br />

         <asp:Label ID="lbllabel" runat="server"></asp:Label> 

       

       </div>

     

  

    </form>

</body>

</html>

rating.aspx.cs

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;



public partial class rating : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

              

    }





    protected void RatingCtrl_Click(object sender, EventArgs e)

    {

        lbllabel.Text ="Your Rate this : "+ RatingCtrl.VoteCount+ " Star";

    }

}

...全文

141 16 打赏收藏转发到动态举报

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gimse7en 2008-07-17

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mark

一品梅 2008-07-17

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[Quote=引用 4 楼 findcaiyzh 的回复:]
是要大家jf吗？
[/Quote]
是请大家回答问题的.

hongqi162 2008-07-17

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[Quote=引用 4 楼 findcaiyzh 的回复:]
是要大家jf吗？
[/Quote]

宝_爸 2008-07-17

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是要大家jf吗？

JeffChung 2008-07-17

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[Quote=引用 15 楼 tiancaolin 的回复:]
不懂，关注下
[/Quote]

datahandler2 2008-07-17

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不懂，关注下

一品梅 2008-07-17

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千万不要沉下去，请看1，2楼的疑问，谢谢大家了，看看是不是等价于RaiseBubbleEvent实现，能写出相应等价代码出来么？不胜感激.

一品梅 2008-07-17

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大师们帮帮忙解惑啊，分不够明日卯时再加.

一品梅 2008-07-17

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[Quote=引用 10 楼 bollton 的回复:]
OnBubbleEvent是控件内包含的控件向外层控件作事件冒泡
RaisePostBackEvent要写Javascript事件回发代码的
[/Quote]
是RaiseBubbleEvent
2楼所说，能仔细地看看并解释一下疑惑吗？

yigeming 2008-07-17

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bollton 2008-07-17

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OnBubbleEvent是控件内包含的控件向外层控件作事件冒泡
RaisePostBackEvent要写Javascript事件回发代码的

jl_lsj 2008-07-17

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不懂帮顶

一品梅 2008-07-16

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为什么不用RaiseBubbleEvent事件来传递到上层控件相同注册事件中呢，是不是等价于：
protected override bool OnBubbleEvent(object source, EventArgs e)
{

if (e is CommandEventArgs)
{
CommandEventArgs ce = (CommandEventArgs)e;
if (ce.CommandName == "Click")
{
VoteCount = ce.CommandArgument.ToString();

OnClick(ce);

}

}
return true;
}

protected virtual void OnClick(EventArgs e)
{
if (Click != null)
{
Click(this, e);
}
}

一品梅 2008-07-16