Topic: SG: An add_user page to study for you Steve (Read 1382 times)

toasty0 · « **on:** June 04, 2005, 11:09:32 pm »

<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Web.Security" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<%@ Import Namespace="System.Data" %>
<%@ Page language="c#" Codebehind="AddUser.aspx.cs" AutoEventWireup="false" Inherits="PW_Test.AddUser" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
   <HEAD>
      <title>AddUser</title>
      <script runat="server">
private void Page_load(Object Src, EventArgs e)
{

String email = Request.QueryString["UserEmail"];

if(null != email)
UserEmail.Value=email;
}

private void AddUser_Click(Object sender, EventArgs e)
{
if( !Page.IsValid)
{
Msg.Text="Some required fields are invalid.";
return;
}

DataSet ds=new DataSet();

String userFile= ".../users.xml";

FileStream fs = new FileStream(Server.MapPath(userFile), FileMode.Open, FileAccess.Read);
StreamReader reader= new StreamReader(fs);
ds.ReadXml(reader);
fs.Close();

string hashedpwd=FormsAuthentication.HashPasswordForStoringInConfigFile(UserPass.Value, "SHA1");
DataRow newUser=ds.Tables[0].NewRow();
newUser["UserEmail"]=UserEmail.Value;
newUser["UserPassword"]=hashedpwd;
ds.Tables[0].Rows.Add(newUser);
ds.AcceptChanges();

fs= new FileStream(Server.MapPath(userFile),FileMode.Create,
FileAccess.Write|FileAccess.Read);
StreamWriter writer = new StreamWriter(fs);
ds.WriteXml(writer);
writer.Close();
fs.Close();

Response.Redirect(".../Default.aspx");
}
      </script>
      <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
      <meta name="CODE_LANGUAGE" Content="C#">
      <meta name="vs_defaultClientScript" content="JavaScript">
      <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
   </HEAD>
   <body MS_POSITIONING="GridLayout">
      <form id="Form1" method="post" runat="server">
         <div style="BACKGROUND:#ccccff">
            <h3><font face="Verdana">Add New User</font></h3>
         </div>
         <table>
            <tr>
               <td>Name</td>
               <td><input id="UserEmail" type="text" runat="server"></td>
               <td><asp:RequiredFieldValidator ControlToValidate="UserEmail" Display="Static" ErrorMessage="*" runat="server" id="RequiredFieldValidator1" />
               </td>
               <td>
                  <asp:RegularExpressionValidator ID="RegexValidator" ControlToValidate="UserEmail" ValidateExpression="^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-)+\.)+))
					([a-zA-Z](2,4)|[0-9]{1,3})(\]?)$"
                     EnableClientScript="False" Display="Static" ErrorMessage="*" runat="server" />
               </td>
            </tr>
            <tr>
               <td>Password</td>
               <td><input id="UserPass" type="password" runat="server"></td>
               <td><asp:RequiredFieldValidator ControlToValidate="UserPass" Display="Static" ErrorMessage="*" Runat="server" id="RequiredFieldValidator2" /></td>
            </tr>
            <tr>
               <td>Persistant Forms</td>
               <td><asp:CheckBox ID="persist" Runat="server" AutoPostBack="True" /></td>
            </tr>
         </table>
         <input type="submit" onserverclick="AddUser_Click" value="Add User" runat="server"><p>
            <asp:Label ID="Msg" ForeColor="red" Font-Name="Verdana" Font-Size="10" Runat="server" />
      </form>
      </P>
   </body>
</HTML>

Sirgod · « **Reply #1 on:** June 05, 2005, 12:39:18 am »

Wow that's alot of code for just adding a user to a web Page/Forum. Is there an easier way to do this? Or is finding out part of this weeks leason Plan?

I have got to get my head back into this. I can somewhat follow the stuff now, But i could never right anything off the top of my head like you and others here can.

Stephen

toasty0 · « **Reply #2 on:** June 05, 2005, 09:52:29 am »

Some of that code is for page/control rendering .

The following is the code that adds the user:

<script runat="server">
private void Page_load(Object Src, EventArgs e)
{

String email = Request.QueryString["UserEmail"];

if(null != email)
UserEmail.Value=email;
}

private void AddUser_Click(Object sender, EventArgs e)
{
if( !Page.IsValid)
{
Msg.Text="Some required fields are invalid.";
return;
}

DataSet ds=new DataSet();

String userFile= ".../users.xml";

FileStream fs = new FileStream(Server.MapPath(userFile), FileMode.Open, FileAccess.Read);
StreamReader reader= new StreamReader(fs);
ds.ReadXml(reader);
fs.Close();

string hashedpwd=FormsAuthentication.HashPasswordForStoringInConfigFile(UserPass.Value, "SHA1");
DataRow newUser=ds.Tables[0].NewRow();
newUser["UserEmail"]=UserEmail.Value;
newUser["UserPassword"]=hashedpwd;
ds.Tables[0].Rows.Add(newUser);
ds.AcceptChanges();

fs= new FileStream(Server.MapPath(userFile),FileMode.Create,
FileAccess.Write|FileAccess.Read);
StreamWriter writer = new StreamWriter(fs);
ds.WriteXml(writer);
writer.Close();
fs.Close();

Response.Redirect(".../Default.aspx");
}
</script>

The following is the HTML that is rendered on the client machine by their browser except where you see the directive 'runat=server'.

<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<div style="BACKGROUND:#ccccff">
<h3><font face="Verdana">Add New User</font></h3>
</div>
<table>
<tr>
<td>Name</td>
<td><input id="UserEmail" type="text" runat="server"></td>
<td><asp:RequiredFieldValidator ControlToValidate="UserEmail" Display="Static" ErrorMessage="*" runat="server" id="RequiredFieldValidator1" />
</td>
<td>
<asp:RegularExpressionValidator ID="RegexValidator" ControlToValidate="UserEmail" ValidateExpression="^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-)+\.)+))
					([a-zA-Z](2,4)|[0-9]{1,3})(\]?)$"
EnableClientScript="False" Display="Static" ErrorMessage="*" runat="server" />
</td>
</tr>
<tr>
<td>Password</td>
<td><input id="UserPass" type="password" runat="server"></td>
<td><asp:RequiredFieldValidator ControlToValidate="UserPass" Display="Static" ErrorMessage="*" Runat="server" id="RequiredFieldValidator2" /></td>
</tr>
<tr>
<td>Persistant Forms</td>
<td><asp:CheckBox ID="persist" Runat="server" AutoPostBack="True" /></td>
</tr>
</table>
<input type="submit" onserverclick="AddUser_Click" value="Add User" runat="server"><p>
<asp:Label ID="Msg" ForeColor="red" Font-Name="Verdana" Font-Size="10" Runat="server" />
</form>
</P>
</body>
</HTML>

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