ASP.NET 实现站内信功能（点对点发送，管理员群发）

　　正好这段时间在研究这个功能，还是得感谢这位大神，没有他的引路，我就不可能把站内信做出来。

http://www.cnblogs.com/grenet/archive/2010/03/08/1680655.html

　　哈哈，再次感谢。

　　我们先来说说单点传送站内信，所谓的单点传送，就是用户与用户之间的短信发送，这里的用户可以是一个人，也可以是多个人，

上面的文章大家如果看了的话，想必有一个疑问，就是用户的阅读状态怎么定义？

我这里给大家一种解决方案，再建立一张表，也就是说，建立一张用户阅读状态表，因为每个用户的阅读状态都是不同的，如果照上面的方法，

肯定是不行的，一个人改变了状态，另外的人也改变了。

上面的是我建立的3张表，具体的SQL如下，包含注释

--短信表
create table cms_message
(
id varchar(50) primary key, 
senduserid varchar(50), --发送用户的ID
recuserid varchar(50),    --接收用户的ID
messageid varchar(50), --短信ID
Msgstatus varchar(10)   --查看状态（是否被查询）

)

--短信内容表
create table cms_messagetext
(
idc varchar(50) primary key,
messagetext text,   --站内信内容
pdate varchar(50)  --站内信发送时间
)

--阅读状态表
create table cms_message_read
(
uniqueid varchar(50) primary key,
idm varchar(50) ,--和MESSAGEID相同
userid varchar(50), --用户ID
flag varchar(5) --阅读状态：0未读，1：已读，2：删除
)

大家也许会问一个问题，你已经在阅读状态表里定义了阅读状态，为什么还要短信表里再定义一次呢？这个其实是有用的，尤其是在发件箱功能里要标记自己的信件的时候，稍后会提到哦。

先让大家来看看主界面。

其中有发件箱，未读信息和已读消息。

发件箱的功能就是查看自己已经发送的信件，未读和已读信息就是表示自己是否已经点击过短信。

下面给大家来看一下发送短信的界面。

下面是普通的点对点发送。

下面是短信群发的界面，我这里的群发是选择发送给某个用户组。

 

我先把代码都放出来，然后我们再来慢慢分析。

其中有用到公司的框架，大家知道意思就行，没必要过分纠结。

这是发送短信的窗口的代码

<%@ Page Language="C#" MasterPageFile="~/Core/Public/WebControls/Main.master" AutoEventWireup="true" CodeFile="AdminSend.aspx.cs" Inherits="MsgSend_AdminSend" %>

<asp:Content ID="cssContent" ContentPlaceHolderID="cssContent" runat="server">
<style type="text/css">

    .Row
    {
        width:100%;
        border-bottom:1px solid #BBE9FF;
        font-size:12px;
        font-family:宋体;
        height:30px;
    }
    
    .Row .Caption
    {
        float:left;
        width:80px;
        text-align:left;
        padding-left:20px;
        padding-top:8px;
    }
    
    .Row .Data
    {
        float:left;
        text-align:left;
        padding-top:2px;
        width:317px;
    }
    
    .Row .Validate
    {
        float:left;
        color:red;
        padding-top:8px;
    }
    
    .Row .Data .Field
    {
        width:256px;
        float:left;
    }
    
    .Row .Data .Select
    {
        float:left;
        padding-left:1px;
        padding-top:1px;
    }
    
    .Bottom
    {
        width:100%;
        height:40px;
        border-bottom:1px solid #BBE9FF;
        font-size:12px;
        font-family:宋体;
    }
    
    .Bottom .Button
    {
        margin-top:5px;
        float:right;
        text-align:left;
        padding-right:10px;
    }

</style>
</asp:Content>

<asp:Content ID="bodyContent" ContentPlaceHolderID="bodyContent" runat="server">
    
    
    <div class="Row">
        <div class="Caption">收件人&nbsp;&nbsp;&nbsp;&nbsp;：</div>
        <div class="Data"> <asp:TextBox runat="server" ID="recieveid" style="width:311px;height:17px;"></asp:TextBox>
            <%--下拉列表，仅仅用户管理员可用--%>
            <asp:DropDownList runat="server" ID="ddlUserGroup"></asp:DropDownList>

        </div>
        <div class="Validate">&nbsp;*</div>
    </div>


    

        <div class="Row" id="divMemo">
            <div class="Caption">内容&nbsp;&nbsp;&nbsp;&nbsp;：</div>
            <div class="Data"> <asp:TextBox TextMode="MultiLine" runat="server" ID="msgText" style="width:311px;"></asp:TextBox></div>
            <div class="Validate">&nbsp;*</div>
        </div>


    <div class="Bottom">
    <div class="Button">
         <asp:Button ID="sendMsg" runat="server" Text="发送" OnClick="sendMsg_Click" CssClass="buttonblue_100_27" OnClientClick="return ValidateEmpty();" />&nbsp;
        <asp:Button ID="cancel" runat="server" Text="取消" CssClass="buttonblue_100_27" OnClientClick="return winClose()" />
    </div>
</div>


    
   
</asp:Content>

<asp:Content runat="server" ID="jsContent" ContentPlaceHolderID="jsContent">
        <script type="text/javascript">
        $( document ).load( function()
        {
            var bottom = $( "#divMemo" );
            bottom.height( $( document.body ).height() - 120 - 15 );
            bottom.children().eq( 0 ).css( "margin-top" , 70 );
            bottom.children().eq( 1 ).height( bottom.height() - 15 );
            bottom.children().eq( 1 ).children().eq( 0 ).height( bottom.children().eq( 1 ).height() );
        }
    );
            //内容判断不能为空
        function ValidateEmpty()
        {
            if($("#<%=this.msgText.ClientID%>").val()=="")
            {
                alert("请输入短信内容");
                return false;
            }

            else {
                return true;
            }
           
        }


        </script>
</asp:Content>

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

public partial class MsgSend_AdminSend :cs.Common.Web.BasePage
{
    protected void Page_Load(object sender, EventArgs e)
    {


            //如果是查询信件的话
            if (Request["id"] != null && Request["id"] != "")
            {
                //recieveid.Visible = false; //如果是单纯的查询信件的话，隐去接收人
                recieveid.Enabled = false;
                DataSet setRequest = this.DataManager.Fill("select * from cms_message a,cms_messagetext b  where a.messageid=b.idc and a.id='" +Request["id"]+ "'");

                foreach(DataRow row in setRequest.Tables[0].Rows)
                {
                    msgText.Text= row["messagetext"].ToString(); //短信内容
                    sendMsg.Text = row["recuserid"].ToString();  //接收人
            
                }
                msgText.Enabled = false;
                sendMsg.Enabled = false;
                ddlUserGroup.Visible = false;

            }
            ddlUserGroup.Visible = false;
             //群发短信
            if (Request["group"] == "yes"&&!IsPostBack)
            {
                recieveid.Visible = false;
                ddlUserGroup.Visible = true; //显示下拉
               
                //绑定数据
                //不为顶级栏目
                DataSet set = this.DataManager.Fill("select * from t_sys_org where orgid!='Org_05d1a0697fbf4559afcf4914f9'");
                ddlUserGroup.DataSource = set; //数据源
                ddlUserGroup.DataTextField = "name";
                ddlUserGroup.DataValueField = "orgid";
                ddlUserGroup.DataBind();

            }

           
        
    }

    //发送短信
    //分为群发和点对点发送，如果下拉列里面的值为NULL，就是点对点发送，否则为短信群发

    protected void sendMsg_Click(object sender, EventArgs e)
    {

        //点对点发送 
        if (ddlUserGroup.SelectedItem == null)
        {



            bool suc_Insert = false;
            bool suc_InsertText = false;

            string id = Guid.NewGuid().ToString(); //新产生的ID
            string currentId = cms.Web.AppContext.CuurentUser.ID; //当前用户的ID
            string recieveId = this.recieveid.Text; //收信人ID

            string messageId = Guid.NewGuid().ToString(); //信件ID
            string messageStatus = "0"; //0：未读，1：已读,2:删除
            string pdate = DateTime.Now.ToString(); //站内信发送时间
            string messagetext = this.msgText.Text; //信件内容

            //发送短信的SQL其实是在数据库里插入3条记录而已，删除是假删除。
            //插入cms_message的SQL
            string sqlInsert = "insert into cms_message values('" + id + "','" + currentId + "','" + recieveId + "','" + messageId + "','" + messageStatus + "')";

            //插入cms_messagetext表的SQL
            string sqlInsertText = "insert into cms_messagetext values ('" + messageId + "','" + messagetext + "','" + pdate + "')";



            if (!userIsExists(recieveId))
            {
                cs.Common.Web.AjaxServer.Msg("用户名不存在，请检查用户名！如有多个用户名，请用英文逗号分隔！", "");
            }

            else
            {
                //插入2张表
                suc_Insert = this.DataManager.Execute(sqlInsert);
                suc_InsertText = this.DataManager.Execute(sqlInsertText);



                //插入cms_message_read 阅读状态表的记录，因为这里要遍历插入的人，所以要用循环

                string[] recIds = recieveId.Split(',');

                for (int i = 0; i < recIds.Length; i++)
                {
                    string uniqueId = Guid.NewGuid().ToString();  //新建一个不重复的ID
                    string sqlInsertStatus = "insert into cms_message_read values('" + uniqueId + "','" + messageId + "','" + recIds[i] + "','" + messageStatus + "')";


                    this.DataManager.Execute(sqlInsertStatus);

                }
                //yangliweng,baojunyi,cgb,clj





                if (suc_Insert && suc_InsertText)
                {

                    cs.Common.Web.AjaxServer.Msg("发送成功！", "return winClose();");
                }
                else
                {
                    cs.Common.Web.AjaxServer.Msg("发送失败！", "return winClose()");

                }
            }
        }
            //群发
        else {
            bool suc_Insert = false;
            bool suc_InsertText = false;

            string id = Guid.NewGuid().ToString(); //新产生的ID
            string currentId = cms.Web.AppContext.CuurentUser.ID; //当前用户的ID
           

            string messageId = Guid.NewGuid().ToString(); //信件ID
            string messageStatus = "0"; //0：未读，1：已读,2:删除
            string pdate = DateTime.Now.ToString(); //站内信发送时间
            string messagetext = this.msgText.Text; //信件内容

            string recieveId = "";//收信人ID
            string orgId = ddlUserGroup.SelectedValue;  //选中的部门的ID

            DataSet setUserByOrgId = this.DataManager.Fill("select * from t_sys_user where orgid='"+orgId+"'");

            foreach (DataRow Row in setUserByOrgId.Tables[0].Rows)
            {
               recieveId+=","+ Row["id"].ToString();
            
            }
            recieveId = recieveId.Substring(1); //截取字符串

            //Response.Write(recieveId);

            //发送短信的SQL其实是在数据库里插入3条记录而已，删除是假删除。
            //插入cms_message的SQL
            string sqlInsert = "insert into cms_message values('" + id + "','" + currentId + "','" + recieveId + "','" + messageId + "','" + messageStatus + "')";

            //插入cms_messagetext表的SQL
            string sqlInsertText = "insert into cms_messagetext values ('" + messageId + "','" + messagetext + "','" + pdate + "')";



            if (!userIsExists(recieveId))
            {
                cs.Common.Web.AjaxServer.Msg("用户名不存在，请检查用户名！如有多个用户名，请用英文逗号分隔！", "");
            }

            else
            {
                //插入2张表
                suc_Insert = this.DataManager.Execute(sqlInsert);
                suc_InsertText = this.DataManager.Execute(sqlInsertText);



                //插入cms_message_read 阅读状态表的记录，因为这里要遍历插入的人，所以要用循环

                string[] recIds = recieveId.Split(',');

                for (int i = 0; i < recIds.Length; i++)
                {
                    string uniqueId = Guid.NewGuid().ToString();  //新建一个不重复的ID
                    string sqlInsertStatus = "insert into cms_message_read values('" + uniqueId + "','" + messageId + "','" + recIds[i] + "','" + messageStatus + "')";


                    this.DataManager.Execute(sqlInsertStatus);

                }
                //yangliweng,baojunyi,cgb,clj





                if (suc_Insert && suc_InsertText)
                {

                    cs.Common.Web.AjaxServer.Msg("发送成功！", "return winClose()");
                }
                else
                {
                    cs.Common.Web.AjaxServer.Msg("发送失败！", "return winClose()");

                }
            }

        
        }


    }

    //判断用户是否存在
    public bool userIsExists(String ids)
    {

        string[] idSplit = ids.Split(',');

        int len = idSplit.Length;
        string newStr=""; //新的存放IDS的地方
        for (int i = 0; i < idSplit.Length; i++)
        {
            newStr += ",'" + idSplit[i] + "'";
        
        }


        DataSet setUsers = this.DataManager.Fill("select * from T_SYS_USER where id in(" + newStr.Substring(1) + ")");

        int setLen = setUsers.Tables[0].Rows.Count;

        if (setLen < len)
        {
            return false;
        }

        else
        {
            return true;
        }

    
    }
}

这是显示短信的代码

<%@ Page Language="C#" MasterPageFile="~/Core/Public/WebControls/Main.master" AutoEventWireup="true" CodeFile="Send.aspx.cs" Inherits="MsgSend_Send" %>
<%@ Register Src="~/Core/Public/WebControls/GridTable.ascx" TagName="GridTable" TagPrefix="cms"%>
<%@ Register Src="~/Core/public/WebControls/TabControl.ascx" TagName="TabControl" TagPrefix="u1" %> 


<asp:Content ID="bodyContent" ContentPlaceHolderID="bodyContent" runat="server">



    <div style="margin:10px;">
<%--            <div id="div1" style="width:200px;float:left;">
            <u2:ChannelTree ID="TopicTree1" runat="server" />
        </div>--%>
    <div style="margin-left:10px;"  id="divTab">
           <u1:TabControl ID="TabControl1" runat="server"/>
        </div>
        </div>


   <%--发件箱--%>
    <div  style="display:none;padding-left:10px;padding-top:10px;" id="Content1">
            <%--树和TAB--%>

        <div style="height:30px;width:100%;margin-top:5px">
        <asp:Button runat="server" ID="addMsg" CssClass="buttonwhite_100_27" Text="新增短信" OnClientClick="WinOpen_()" />
         <asp:Button runat="server" ID="delMsg_Send" CssClass="buttonwhite_100_27" Text="批量删除" OnClick="delMsg_Send_Method" OnClientClick=" return DelSendBox()" />
         <asp:Button runat="server" ID="groupSend" CssClass="buttonwhite_100_27" Text="短信群发" OnClientClick="WinOpen_Group()" />

    </div>


    <div style="width:100%">
        <cms:GridTable id="gridReceive" runat="server">
        </cms:GridTable>
    </div>
    
</div> 

        <%--收件箱--未读信息--%>
<div  style="display:none;padding-left:10px;padding-top:10px;" id="Content3">
    <div style="height:30px;width:100%;margin-top:5px">
    <asp:Button runat="server" ID="Button2" CssClass="buttonwhite_100_27" Text="批量删除" OnClick="delMsg_UnRead" OnClientClick="return DelUnread()" />
    </div>
    <div style="width:100%">
        <cms:GridTable id="GridTableUnread" runat="server">
        </cms:GridTable>
    </div>
</div>

    <%--收件箱--已读信息--%>
<div  style="display:none;padding-left:10px;padding-top:10px;" id="Content2">
    <div style="height:30px;width:100%;margin-top:5px">
    <asp:Button runat="server" ID="Button1" CssClass="buttonwhite_100_27" Text="批量删除" OnClick="delMsg_Read" OnClientClick="return DelRead()" />
    </div>
    <div style="width:100%">
        <cms:GridTable id="gridProcess" runat="server">
        </cms:GridTable>
    </div>
</div>

    <asp:HiddenField runat="server" ID="ids" />
    <asp:HiddenField runat="server" ID="idsUser" />
    <asp:HiddenField runat="server" ID="txtIDS" />
</asp:Content>


<asp:Content ID="jsContent" ContentPlaceHolderID="jsContent" runat="server">

    <script type="text/javascript">

        
        //打开新增短信的窗口
        function WinOpen_()
        {
            return winOpen( 450 , 370 , "新增短信" , "MsgSend/AdminSend.aspx" );
        }

        //打开新增短信的窗口 --带参数,里面写代码是把状态由未读改为已读
        function winOpens(id)
        {
            //return winOpen( 450 , 370 , "新增短信" , "MsgSend/AdminSend.aspx?id="+id );
         
            <%
        //更新状态表
        bool flag = this.DataManager.Execute("update cms_message_read set flag=1 where idm='" + ids.Value + "' and userid='" + idsUser.Value + "'");
            // Response.Write(flag);
            %>

           window.showModalDialog( "AdminSend.aspx?id="+id ,"查询短信","dialogWidth=450px;dialogHeight=370px");
        }

        //删除：发件箱
        function DelSendBox()
        {
            var s = doSelect( "<%=this.gridReceive.ClientID%>" );
                if( s == "" )
                {
                    alert( "请选择要删除的信息！" );
                    return false;
                }
                //alert(s);
                $( "#<%=this.txtIDS.ClientID%>" ).val( s );
        return confirm( "你确定要删除这些信息？" );
        }

        //删除：未读信息
        function DelUnread()
        {
            var s = doSelect( "<%=this.GridTableUnread.ClientID%>" );
            if( s == "" )
            {
                alert( "请选择要删除的信息！" );
                return false;
            }
            //alert(s);
            $( "#<%=this.txtIDS.ClientID%>" ).val( s );
                return confirm( "你确定要删除这些信息？" );
        }

        //删除：已读信息
        function DelRead()
        {
            var s = doSelect( "<%=this.gridProcess.ClientID%>" );
            if( s == "" )
            {
                alert( "请选择要删除的信息！" );
                return false;
            }
            //alert(s);
            $( "#<%=this.txtIDS.ClientID%>" ).val( s );
            return confirm( "你确定要删除这些信息？" );
        }

        //打开短信群发窗口
        function WinOpen_Group()
        {
            return winOpen( 450 , 370 , "短信群发" , "MsgSend/AdminSend.aspx?group=yes" );
        
        }


        $( document ).load( function()
        {
            var rowCount  = 0;
            var rowHeight = 0;
            var subHeight = 15;
            var other     = 0;
            var bottom = $( "#divTab" );
            bottom.height( $( document.body ).height() - subHeight - rowHeight * rowCount - other );
            <%=this.TabControl1.ClientID%>.MarginLeft  = 20;
                <%=this.TabControl1.ClientID%>.MarginRight = 20;
                <%=this.TabControl1.ClientID%>.OnSize( bottom.height() - 5 );
        
                $( "#<%=this.TabControl1.ClientID%>" ).height( bottom.height()  ); 
            }
    );    

    </script>

</asp:Content>

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;
using Powerise.EIP.Intercourse;

public partial class MsgSend_Send : cs.Common.Web.BasePage
{
    protected void Page_Load(object sender, EventArgs e)
    {
        cs.Common.Web.TabPage tp1 = new cs.Common.Web.TabPage();
        tp1.Title = "发件箱";
        tp1.ContentID = "Content1";
        cs.Common.Web.TabPage tp2 = new cs.Common.Web.TabPage();

        cs.Common.Web.TabPage tp3 = new cs.Common.Web.TabPage();
        tp3.Title = "未读信息";
        tp3.ContentID = "Content3";

        tp2.Title = "已读信息";
        tp2.ContentID = "Content2";
        this.TabControl1.TabPages.Add(tp1);
        this.TabControl1.TabPages.Add(tp3);
        this.TabControl1.TabPages.Add(tp2);
        this.bindScreen(); //绑定未读信息和已读新
        if (!IsPostBack)
        {
            //this.addMsg.Attributes.Add("onclick", "return winOpen_()");

            if (cms.Web.AppContext.CuurentUser.ID != "administrator")
            {
                this.groupSend.Visible = false;  //管理员可见群发短信按钮
            }
            this.LoadData(); //载入数据

        }

        else
        {
            //this.LoadData();
        
        }
      
       
        
        
    }

    //发件箱
    private void BuildSendBox()
    {
        GridTableStyle gts = new GridTableStyle();

        //id字段
        GridTableColumn id = new GridTableColumn();
        id.DataField = "id";
        gts.KeyColumns.Add(id);

        //发送人ID
        GridTableColumn sendUserid = new GridTableColumn();
        sendUserid.DataField = "senduserid";
        sendUserid.HeaderText = "发送人ID";
        gts.Columns.Add(sendUserid);
       // sendUserid.Visible = false;


        //接收人ID
        GridTableColumn recuserid = new GridTableColumn();
        recuserid.DataField = "recuserid";
        recuserid.HeaderText = "接收人ID";
        recuserid.ItemHorizontalAlign = HorizontalAlign.Left;
       // recuserid.Width = Unit.Parse("50%");
        gts.Columns.Add(recuserid);

        //信件ID
        GridTableColumn messageid = new GridTableColumn();
        messageid.DataField = "messageid";
        messageid.HeaderText = "信件ID";
        //messageid.Width = Unit.Parse("20%");
        messageid.ItemHorizontalAlign = HorizontalAlign.Right;
        gts.Columns.Add(messageid);
        messageid.Visible = false;
        

        //是否未读
        GridTableColumn msgstatus = new GridTableColumn();
        msgstatus.DataField = "msgstatus";
        msgstatus.HeaderText = "是否未读";
        msgstatus.ItemHorizontalAlign = HorizontalAlign.Center;
        gts.Columns.Add(msgstatus);
        msgstatus.Visible = false;

        //短消息内容
        GridTableColumn messagetext = new GridTableColumn();
        messagetext.DataField = "messagetext";
        messagetext.HeaderText = "短信内容";
        messagetext.ItemHorizontalAlign = HorizontalAlign.Center;
        gts.Columns.Add(messagetext);

        this.gridReceive.GridTableStyle = gts;
        this.gridReceive.GridTableStyle.IsShowCheckBox = false;
        this.gridReceive.GridView.RowDataBound += new GridViewRowEventHandler(GridView_RowDataBound); //绑定GRIDVIEW
    }

    protected void GridView_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            string id = DataBinder.Eval(e.Row.DataItem, "id").ToString();
            e.Row.Cells[2].Text = "<a href=\"javascript:winOpens('" + id + "');\">" + "<font color=blue>" + e.Row.Cells[2].Text + "</font></a>";
           // e.Row.Cells[2].Text = "<a href=\"javascript:winOpens('" + id + "');\" >" + e.Row.Cells[2].Text + "</a>";
        }
    }


    //已读信件
    private void BuildRead()
    {
        GridTableStyle gts = new GridTableStyle();

        //id字段
        GridTableColumn id = new GridTableColumn();
        id.DataField = "id";
        gts.KeyColumns.Add(id);

        //发送人ID
        GridTableColumn sendUserid = new GridTableColumn();
        sendUserid.DataField = "senduserid";
        sendUserid.HeaderText = "发送人ID";
        gts.Columns.Add(sendUserid);
        // sendUserid.Visible = false;


        //接收人ID
        GridTableColumn recuserid = new GridTableColumn();
        recuserid.DataField = "recuserid";
        recuserid.HeaderText = "接收人ID";
        recuserid.ItemHorizontalAlign = HorizontalAlign.Left;
        // recuserid.Width = Unit.Parse("50%");
        gts.Columns.Add(recuserid);
        recuserid.Visible = false;

        //信件ID
        GridTableColumn messageid = new GridTableColumn();
        messageid.DataField = "messageid";
        messageid.HeaderText = "信件ID";
        //messageid.Width = Unit.Parse("20%");
        messageid.ItemHorizontalAlign = HorizontalAlign.Right;
        gts.Columns.Add(messageid);

        //是否未读
        GridTableColumn msgstatus = new GridTableColumn();
        msgstatus.DataField = "msgstatus";
        msgstatus.HeaderText = "是否未读";
        msgstatus.ItemHorizontalAlign = HorizontalAlign.Center;
        gts.Columns.Add(msgstatus);

        //短消息内容
        GridTableColumn messagetext = new GridTableColumn();
        messagetext.DataField = "messagetext";
        messagetext.HeaderText = "短信内容";
        messagetext.ItemHorizontalAlign = HorizontalAlign.Center;
        gts.Columns.Add(messagetext);

        this.gridProcess.GridTableStyle = gts;
        this.gridProcess.GridTableStyle.IsShowCheckBox = false;
        this.gridProcess.GridView.RowDataBound += new GridViewRowEventHandler(ProcessGridView_RowDataBound); //绑定GRIDVIEW
    }

    

    protected void ProcessGridView_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            //string mailId = DataBinder.Eval(e.Row.DataItem, "emailId").ToString();
            //e.Row.Cells[3].Text = "<a href=\"javascript:mailLook('" + mailId + "');\" >" + e.Row.Cells[3].Text + "</a>";
        }
    }
    //未读信息

  
    private void BuildUnRead()
    {
        GridTableStyle gts = new GridTableStyle();

        //id字段
        GridTableColumn id = new GridTableColumn();
        id.DataField = "id";
        gts.KeyColumns.Add(id);

        //发送人ID
        GridTableColumn sendUserid = new GridTableColumn();
        sendUserid.DataField = "senduserid";
        sendUserid.HeaderText = "发送人ID";
        gts.Columns.Add(sendUserid);
        // sendUserid.Visible = false;


        //接收人ID
        GridTableColumn recuserid = new GridTableColumn();
        recuserid.DataField = "recuserid";
        recuserid.HeaderText = "接收人ID";
        recuserid.ItemHorizontalAlign = HorizontalAlign.Left;
        // recuserid.Width = Unit.Parse("50%");
        gts.Columns.Add(recuserid);
        recuserid.Visible = false;

        //信件ID
        GridTableColumn messageid = new GridTableColumn();
        messageid.DataField = "messageid";
        messageid.HeaderText = "信件ID";
        //messageid.Width = Unit.Parse("20%");
        messageid.ItemHorizontalAlign = HorizontalAlign.Right;
        gts.Columns.Add(messageid);
        messageid.Visible = false;

        //是否未读
        GridTableColumn msgstatus = new GridTableColumn();
        msgstatus.DataField = "msgstatus";
        msgstatus.HeaderText = "是否未读";
        msgstatus.ItemHorizontalAlign = HorizontalAlign.Center;
        gts.Columns.Add(msgstatus);

        //短消息内容
        GridTableColumn messagetext = new GridTableColumn();
        messagetext.DataField = "messagetext";
        messagetext.HeaderText = "短信内容";
        messagetext.ItemHorizontalAlign = HorizontalAlign.Center;
        gts.Columns.Add(messagetext);

        this.GridTableUnread.GridTableStyle = gts;
        this.GridTableUnread.GridTableStyle.IsShowCheckBox = false;
        this.GridTableUnread.GridView.RowDataBound += new GridViewRowEventHandler(Unread_RowDataBound); //绑定GRIDVIEW
    }


    protected void Unread_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            string id = DataBinder.Eval(e.Row.DataItem, "messageid").ToString(); //信件ID

            ids.Value = id; //把messageid抛到隐藏域里面去
            idsUser.Value = cms.Web.AppContext.CuurentUser.ID; //获取当前用户的ID，然后进行判断这条短信是不是属于这个用户
            e.Row.Cells[2].Text = "<a  href='#' onclick=\"winOpens('" + id + "');\" >"+"<font color=blue>" + e.Row.Cells[2].Text + "</font></a>";
        }
    
    }

    //绑定GRIDVIEW的界面
    public void bindScreen()
    {
        this.BuildSendBox(); //发件箱
        this.BuildUnRead();//未读信息
        this.BuildRead(); //已读信息

    }

    //载入数据
    public void LoadData()
    {
        //发件箱
        DataSet set = this.DataManager.Fill("select * from cms_message a,cms_messagetext b  where a.messageid=b.idc and a.msgstatus!=2 and a.senduserid='" + cms.Web.AppContext.CuurentUser.ID + "'");
        if (set!=null)
        {
            this.gridReceive.DataSource = set;
            this.gridReceive.DataBind();
        }

        //未读
        DataSet setUnread = this.DataManager.Fill("select * from cms_message a,cms_messagetext b,cms_message_read c  where a.messageid=b.idc and c.idm=b.idc and c.flag=0 and c.userid='"+cms.Web.AppContext.CuurentUser.ID+"'");

        if (setUnread != null&&setUnread.Tables.Count>0)
        {

            //这种方法也可行，暂时注释掉
            foreach (DataRow row in setUnread.Tables[0].Rows)
            {
                string recUserid = row["recuserid"].ToString(); //接收用户ID
                string userId = cms.Web.AppContext.CuurentUser.ID;

                //Response.Write(recUserid.Length);
                //Response.Write("baojunyi".IndexOf(userId));
                //Response.Write(userId.Length);
                //Response.Write(recUserid.Equals(userId));

                if (recUserid.IndexOf(cms.Web.AppContext.CuurentUser.ID)>=0) //如果本用户ID在RECUSERID里面的话，就绑定
                {
                    this.GridTableUnread.DataSource = setUnread;
                    this.GridTableUnread.DataBind();
                }
            
            }

            //this.GridTableUnread.DataSource = setUnread;
            //this.GridTableUnread.DataBind();
        }

        //已处理信件


        DataSet set2 = this.DataManager.Fill("select * from cms_message a,cms_messagetext b,cms_message_read c  where a.messageid=b.idc and c.idm=b.idc and c.flag=1 and c.userid='" + cms.Web.AppContext.CuurentUser.ID + "'");
        if (set2!=null)
        {
            //这种方法也可行，暂时注释掉
            foreach (DataRow row in set2.Tables[0].Rows)
            {
                string recUserid = row["recuserid"].ToString(); //接收用户ID
                string userId = cms.Web.AppContext.CuurentUser.ID;

                //Response.Write(recUserid.Length);
                //Response.Write("baojunyi".IndexOf(userId));
                //Response.Write(userId.Length);
                //Response.Write(recUserid.Equals(userId));

                if (recUserid.IndexOf(cms.Web.AppContext.CuurentUser.ID) >= 0) //如果本用户ID在RECUSERID里面的话，就绑定
                {
                    this.gridProcess.DataSource = set2;
                    this.gridProcess.DataBind();
                }

            }

            //this.gridProcess.DataSource = set2;
            //this.gridProcess.DataBind();
        }

    }

    //发件箱删除方法(假删)
    protected void delMsg_Send_Method(object sender,EventArgs e)
    { 
        //删除语句
       //string sqlDel="update"
        string[] ids = this.txtIDS.Value.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);

        for(int i =0;i<ids.Length;i++)
        {
          
           string delSql = "update cms_message set msgstatus=2 where id='"+ ids[i]+"'";
           this.DataManager.Execute(delSql);
        }
       
    
    }
    //未读信息删除方法(假删)
    protected void delMsg_UnRead(object sender,EventArgs e)
    {
        string[] ids = this.txtIDS.Value.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);

        //方法：先是找到对应的的一张表的ID，然后根据用户名找到第三张表对应的UniqueID,根据UNIQUEID进行UPDATE操作
        //第一张表：cms_message ，第三张表：cms_message_read
        string ids_Package = "";

        for (int i = 0; i < ids.Length; i++)
        {
            ids_Package += ",'" + ids[i] + "'";
        
        }

        DataSet setUnread_Dels = this.DataManager.Fill("select c.uniqueid from cms_message a,cms_messagetext b,cms_message_read c  where a.messageid=b.idc and c.idm=b.idc and c.flag=0 and c.userid='" + cms.Web.AppContext.CuurentUser.ID + "' and a.id in("+ids_Package.Substring(1)+")");

        foreach (DataRow Row in setUnread_Dels.Tables[0].Rows)
        { 
            //更新数据库
            string update_Sql = "update cms_message_read set flag=2 where uniqueid='" + Row["uniqueid"].ToString() + "'";
            this.DataManager.Execute(update_Sql);
        
        }
    }

    protected void delMsg_Read(object sender, EventArgs e)
    {
        string[] ids = this.txtIDS.Value.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);

        //方法：先是找到对应的的一张表的ID，然后根据用户名找到第三张表对应的UniqueID,根据UNIQUEID进行UPDATE操作
        //第一张表：cms_message ，第三张表：cms_message_read
        string ids_Package = "";

        for (int i = 0; i < ids.Length; i++)
        {
            ids_Package += ",'" + ids[i] + "'";

        }

        DataSet setUnread_Dels = this.DataManager.Fill("select c.uniqueid from cms_message a,cms_messagetext b,cms_message_read c  where a.messageid=b.idc and c.idm=b.idc and c.flag=1 and c.userid='" + cms.Web.AppContext.CuurentUser.ID + "' and a.id in(" + ids_Package.Substring(1) + ")");

        foreach (DataRow Row in setUnread_Dels.Tables[0].Rows)
        {
            //更新数据库
            string update_Sql = "update cms_message_read set flag=2 where uniqueid='" + Row["uniqueid"].ToString() + "'";
            this.DataManager.Execute(update_Sql);

        }
    
    }



}

 

下面我们就来详细解释一下代码，首先我们要知道一件事情，就是：我给很多人发了同一条信息，然后有的人看过了，有的人没有看，所以就有不同的状态，

而这种不同的状态，是以一个用户名+短信ID来确定的一个唯一的值。

明白这点就好办了。而删除也不是真正的删除，而是改变阅读的状态，让它查询不到。

还有一点大家要注意，就是怎么实现：点一下短信，让短信变成已读，这个问题困扰了我很久，因为这个链接是在GRIDVIEW里面。

我们其实只要用这个链接的ONCLICK事件，然后跳到前台，从前台去改变数据库里的值就行了。

如下：

  function winOpens(id)
        {
            //return winOpen( 450 , 370 , "新增短信" , "MsgSend/AdminSend.aspx?id="+id );
         
            <%
        //更新状态表
        bool flag = this.DataManager.Execute("update cms_message_read set flag=1 where idm='" + ids.Value + "' and userid='" + idsUser.Value + "'");
            // Response.Write(flag);
            %>

           window.showModalDialog( "AdminSend.aspx?id="+id ,"查询短信","dialogWidth=450px;dialogHeight=370px");
        }

这样就OK了。

还有一点大家要注意一下，就是发件箱的删除功能和未读已读是2个不同的概念，因为发件箱里查询到的是自己的信息，

而未读，已读，是在状态表里存放的状态，这就是为什么发件箱里面也要有一个阅读状态的列，其作用就是：判断是否删除（假删）。

而要改变未读，已读里的状态，先要找到状态表里的ID，ID怎么找，找唯一项，唯一项，就是短信ID+用户名的组合。

如下。

    //未读信息删除方法(假删)
    protected void delMsg_UnRead(object sender,EventArgs e)
    {
        string[] ids = this.txtIDS.Value.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);

        //方法：先是找到对应的的一张表的ID，然后根据用户名找到第三张表对应的UniqueID,根据UNIQUEID进行UPDATE操作
        //第一张表：cms_message ，第三张表：cms_message_read
        string ids_Package = "";

        for (int i = 0; i < ids.Length; i++)
        {
            ids_Package += ",'" + ids[i] + "'";
        
        }

        DataSet setUnread_Dels = this.DataManager.Fill("select c.uniqueid from cms_message a,cms_messagetext b,cms_message_read c  where a.messageid=b.idc and c.idm=b.idc and c.flag=0 and c.userid='" + cms.Web.AppContext.CuurentUser.ID + "' and a.id in("+ids_Package.Substring(1)+")");

        foreach (DataRow Row in setUnread_Dels.Tables[0].Rows)
        { 
            //更新数据库
            string update_Sql = "update cms_message_read set flag=2 where uniqueid='" + Row["uniqueid"].ToString() + "'";
            this.DataManager.Execute(update_Sql);
        
        }
    }

　　站内信关键是思路上的问题，其实并不是很难。