reply.aspx 浏览贴子内容及回复

作者： unknow

2) reply.aspx : The topic viewing and replying page

<%@ Page Language="C#" EnableSessionState="False" Debug="True" %>
<%@ Import Namespace="System" %>
<%@ Assembly Name="System.Data" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.ADO" %>
<html><head>
<title>Post New Topic.</title>
<%-- These are the imported assemblies and namespaces needed --%>
<script Language="C#" runat="server">
  DataSet ds ,rs;
  DataRow dr ;
  string postid ;
  public void Page_Load(object sender , EventArgs e)
  {
     //Check if the page is Post Back
     if(!Page.IsPostBack)
    {
       //Get the postid from the Query string
       postid = Request.Params["postid"] ;
       if(postid!=null)
      {
         //Database connection string. Change the path to the database file if you have some other path where
         //you are saving your Database file
         string strConn=@"Provider=Microsoft.Jet.OLEDB.4.0 ;Data Source="+Server.MapPath(".\\db\\board.mdb") ;
         //Make a connection to the Database
         ADOConnection myConn = new ADOConnection(strConn) ;
         //string to select the records from the newpost table
         string strCon ="SELECT subject, name, email, message ,date  FROM newpost WHERE postid="+postid ;
          //set a ADODataSetCommand
         ADODataSetCommand myCommand =new ADODataSetCommand(strCon,myConn);
         ds = new DataSet();
         //Don@#t ever forget to open the Connection
         myConn.Open();
         //Fill the DataSet
         myCommand.FillDataSet(ds,"newpost") ;
         //Get the Row at position @#0@# and store it in a DataRow object
         //Why row at position @#0@# ? Since there can only be one record with the given postid remember !!
         //Why put into a DataRow ? Its easy to access data from a DataRow
         dr = ds.Tables["newpost"].Rows[0] ;
         //Get the "subject" from the DataRow and set it up in the post reply form@#s subject field
         subject.Text="Re:"+dr["subject"].ToString() ;
         //Select the replies to the post from the reply table
         strCon ="SELECT name , email, subject, message ,date FROM reply WHERE postid="+postid ;
         //Make a new ADODataSetCommand and DataSet for the reply table
         ADODataSetCommand myCommand2 =new ADODataSetCommand(strCon,myConn);
         rs = new DataSet() ;
         //fill the DataSet
         myCommand2.FillDataSet(rs, "reply") ;
         //Code to update the "views" field for the newpost Table
         //Select the views field from the table for a given postid
         strCon ="SELECT views FROM newpost WHERE postid = "+postid ;
         //Make a ADOCommand here since we want a ADODataReader later
         ADOCommand vicomm = new ADOCommand(strCon, myConn) ;
         ADODataReader reader ;
         //execute the statement and create a ADODataReader
         vicomm.Execute(out reader) ;
         //Read the First record (there can only be one record remember !)
         reader.Read() ;
         //Get a "Int32" value from the first Column (we have one column in the reader, check the select statement above)
         int i = reader.GetInt32(0) ;
         //Increase the views count
         i++ ;
         reader.Close() ;
         //Update the newpost table with the new views value
         strCon ="UPDATE newpost SET views = "+i+" WHERE (postid= "+postid+")" ;
         //since we are using the same ADOCOmmand object for this statement too to set the CommandText property
         vicomm.CommandText = strCon ;
         //Since this statement will result in no output we use "ExecuteNonQuery()" method
         vicomm.ExecuteNonQuery() ;
         //close the connection
         myConn.Close();
      }
    }
  }
   // This method is called when the submit button is clicked
   public void Submit_Click(Object sender, EventArgs e)
   {
       //Get the postid
       postid = Request.Params["postid"] ;

       //proceed only if all the required fields are filled-in
       if(Page.IsValid&&name.Text!=""&&subject.Text!=""&&email.Text!=""){
         DateTime now = DateTime.Now ;
         errmess.Text="" ;
        //We have to call the postmessage.aspx page with a query to post the data to the Database.
        //Hence we have to first build the custom query from the Data posted by the user
        //also since we are using a query we have to encode the data into UTF8 format
         string req = "name="+ System.Web.HttpUtility.UrlEncodeToString(name.Text, System.Text.Encoding.UTF8);
        req+="&&email="+ System.Web.HttpUtility.UrlEncodeToString(email.Text, System.Text.Encoding.UTF8);
        req+="&&subject="+System.Web.HttpUtility.UrlEncodeToString(subject.Text, System.Text.Encoding.UTF8);
req+="&&ip="+System.Web.HttpUtility.UrlEncodeToString(Request.UserHostAddress.ToString(), System.Text.Encoding.UTF8);
        req+="&&date="+ System.Web.HttpUtility.UrlEncodeToString(now.ToString(), System.Text.Encoding.UTF8);
        req+="&&message="+ System.Web.HttpUtility.UrlEncodeToString(message.Text, System.Text.Encoding.UTF8);
        //Encode "no" to indicate that the post is not a new post but its a reply to a earlier message
        req+="&&newpost="+ System.Web.HttpUtility.UrlEncodeToString("no", System.Text.Encoding.UTF8);
        req+="&&previd="+ System.Web.HttpUtility.UrlEncodeToString(postid, System.Text.Encoding.UTF8);
         //Call the postmessage page with our custom query
         Page.Navigate("postmessage.aspx?" + req);
       }
       else
       {
          errmess.Text="Fill in all the Required Fields !" ;
        }
    }
</script>
<LINK href="mystyle.css" type=text/css rel=stylesheet></head>
<body topmargin="0" leftmargin="0" rightmargin="0" marginwidth="0" marginheight="0">
<%-- Include a header file @#header.inc@# --%>

<br>
<div align=center>
<table border=0 width=80% cellspacing=2>
<tr class=fohead><th width=20%>Author Name</th>
<th width=80%>Message</th></tr>
<%-- Below I am encapsulating the email of the author over the name of the author
so that when you click on the author a e-mail gets sent to him
Also I am geting the DateTime from the DataBase and Displaying the Date and Time separately --%>
<tr class=folight><td rowspan=2 align="center"><%= "<a href=mailto:"+dr["email"]+">"+dr["name"]+"</a>" %><br>
<font size=1><%= dr["date"].ToString().ToDateTime().ToShortDateString()  %><br>
<%= dr["date"].ToString().ToDateTime().ToShortTimeString() %></font>
</td>
<td><b>Subject: </b><%=dr["subject"] %></td></tr>
<tr class=folight>
<td><pre><%=dr["message"] %></pre> </td>
</tr>
<%-- Get all the replies to the Original post and show them --%>
<% int no = rs.Tables["reply"].Rows.Count ;
   if(no>0)
   {
      for(int j=0 ;j<no ; j++)
      {
          DataRow rd = rs.Tables["reply"].Rows[j] ;
%>
<tr class=fodark>
<td align="center"><%="<a href=mailto:"+rd["email"]+">"+rd["name"]+"</a>" %><br>
<font size=1><%= rd["date"].ToString().ToDateTime().ToShortDateString()  %><br>
<%= rd["date"].ToString().ToDateTime().ToShortTimeString() %></font>
</td>
<td><pre><%=rd["message"] %></pre> </td>
</tr>
<%
        }
    }
%>
</table>
</div>
<h3 align="center" class="fodark"><a href=forum.aspx>Click Here</a> to go to back to Forum.
<br>Reply to the Above Post.</h3>
<br>
<asp:label id="errmess" text="" style="COLOR:#ff0000" runat="server" />
<form runat="server">
<table border="0"  width="80%" align="center">
<tr >
<td class="fohead" colspan=2><b>Reply to the Post</b></td>
</tr>
<tr class="folight" >
<td>Name :</td>
<td ><asp:textbox text="" id="name" runat="server" />   <font color=#ff0000>*</font></td>
</tr>
<tr class="folight">
<td>E-Mail :</td>
<td><asp:textbox text="" id="email" runat="server"/>   <font color=#ff0000>*</font></td>
</tr>
<tr class="folight">
<td> Subject:</td>
<td><asp:textbox test="" id="subject" width=200 runat="server"/>   <font color=#ff0000>*</font>
</td></tr>
<tr class="folight">
<td>Message :</td>
<td>
<asp:TextBox id=message runat="server"
Columns="30" Rows="15" TextMode="MultiLine"></asp:TextBox></td>
</tr>
<tr class=folight>
<td colspan=2>
<asp:Button class=fodark id=write onClick=Submit_Click runat="server" Text="Submit"></asp:Button></td></tr>
</table>
</form><br>
<br>
</body></html>

返回顶部

下一篇：postmessage.aspx 上贴保存 >>