MembershipUser.UserName Property


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Gets the logon name of the membership user.

Namespace:   System.Web.Security
Assembly:  System.Web.ApplicationServices (in System.Web.ApplicationServices.dll)

public virtual string UserName { get; }

Property Value

Type: System.String

The logon name of the membership user.

A membership user's UserName is used in conjunction with the membership user's password to authenticate the membership user.

The UserName of a MembershipUser identifies a unique user for each application that uses Membership for authentication. An application is identified by the membership ApplicationName. The same user name can be used in multiple applications for different users. Alternatively, a single user name can be used to identify a user for multiple applications, provided the applications are configured with the same ApplicationName.

You can retrieve a MembershipUser object for a membership user by passing the user name to one of the overloads of the GetUser method, or as a member of a MembershipUserCollection returned from the GetAllUsers, FindUsersByName, or FindUsersByEmail method.

You can retrieve the user name for a membership user if the e-mail address for the user is known, by using the GetUserNameByEmail method.

The following code example binds the UserName property of all the membership users in an application to a ListBox control and uses labels to show specific membership information for a selected user name.

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Security" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<script runat="server">

MembershipUserCollection users;

public void Page_Load()
  users = Membership.GetAllUsers();

  if (!IsPostBack)
    // Bind users to ListBox.
    UsersListBox.DataSource = users;

  // If a user is selected, show the properties for the selected user.

  if (UsersListBox.SelectedItem != null)
    MembershipUser u = users[UsersListBox.SelectedItem.Value];

    EmailLabel.Text = u.Email;
    IsOnlineLabel.Text = u.IsOnline.ToString();
    LastLoginDateLabel.Text = u.LastLoginDate.ToString();
    CreationDateLabel.Text = u.CreationDate.ToString();
    LastActivityDateLabel.Text = u.LastActivityDate.ToString();

<html xmlns="" >
<title>Sample: View User Information</title>

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

  <h3>View User Information</h3>

  <table border="0" cellspacing="4">
      <td valign="top">
        <asp:ListBox id="UsersListBox" DataTextField="Username" 
                     Rows="8" AutoPostBack="true" runat="server" />
      <td valign="top">
        <table border="0" cellpadding="2" cellspacing="0">
           <td><asp:Label runat="server" id="EmailLabel" /></td>
           <td>Is Online?:</td>
           <td><asp:Label runat="server" id="IsOnlineLabel" /></td>
           <td><asp:Label runat="server" id="LastLoginDateLabel" /></td>
           <td><asp:Label runat="server" id="CreationDateLabel" /></td>
           <td><asp:Label runat="server" id="LastActivityDateLabel" /></td>



.NET Framework
Available since 2.0
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