Membership.GetUser Method (String)

Gets the information from the data source for the specified membership user.

Namespace: System.Web.Security
Assembly: System.Web (in system.web.dll)

public static MembershipUser GetUser (
	string username
)
public static MembershipUser GetUser (
	String username
)
public static function GetUser (
	username : String
) : MembershipUser
Not applicable.

Parameters

username

The name of the user to retrieve.

Return Value

A MembershipUser object representing the specified user.

Exception typeCondition

ArgumentException

username contains a comma (,).

ArgumentNullException

username is a null reference (Nothing in Visual Basic).

The GetUser method retrieves the user information from the data source and creates a MembershipUser object populated with the returned data. If you use one of the GetUser overloads that does not take a username parameter, GetUser returns the information for the current logged-on membership user. The current logged-on membership user is identified by the Name of the user in the current HttpContext.

You can also specify whether you want GetUser to update the last-activity date/time stamp for the user being retrieved with the userIsOnline parameter. Of the GetUser overloads that do not take a userIsOnline parameter, Membership.GetUser implicitly updates the last-activity date/time stamp for the user. Membership.GetUser and GetUser do not.

The following code example uses the GetUser method to return a MembershipUser object for the current logged-on user and updates the e-mail address for the user.

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Security" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

MembershipUser u;

public void Page_Load(object sender, EventArgs args)
{
  u = Membership.GetUser(User.Identity.Name);

  if (!IsPostBack)
  {
    EmailTextBox.Text = u.Email; 
  }
}

public void UpdateEmailButton_OnClick(object sender, EventArgs args)
{
  try
  {
    u.Email = EmailTextBox.Text;

    Membership.UpdateUser(u);
  
    Msg.Text = "User e-mail updated.";
  }
  catch (System.Configuration.Provider.ProviderException e)
  {
    Msg.Text = e.Message;
  }
}

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Sample: Update User E-Mail</title>
</head>
<body>

<form id="form1" runat="server">
  <h3>Update E-Mail Address for <%=User.Identity.Name%></h3>

  <asp:Label id="Msg" ForeColor="maroon" runat="server" /><br />

  <table cellpadding="3" border="0">
    <tr>
      <td>E-mail Address:</td>
      <td><asp:TextBox id="EmailTextBox" MaxLength="128" Columns="30" runat="server" /></td>
      <td><asp:RequiredFieldValidator id="EmailRequiredValidator" runat="server"
                                    ControlToValidate="EmailTextBox" ForeColor="red"
                                    Display="Static" ErrorMessage="Required" /></td>
    </tr>
    <tr>
      <td></td>
      <td><asp:Button id="UpdateEmailButton" 
                      Text="Update E-mail" 
                      OnClick="UpdateEmailButton_OnClick" 
                      runat="server" /></td>
    </tr>
  </table>
</form>

</body>
</html>

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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