.NET Framework Class Library
Membership.GetUser Method (String)

Note: This method is new in the .NET Framework version 2.0.

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

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

Syntax

Visual Basic (Declaration)
Public Shared Function GetUser ( _
    username As String _
) As MembershipUser
Visual Basic (Usage)
Dim username As String
Dim returnValue As MembershipUser

returnValue = Membership.GetUser(username)
C#
public static MembershipUser GetUser (
    string username
)
C++
public:
static MembershipUser^ GetUser (
    String^ username
)
J#
public static MembershipUser GetUser (
    String username
)
JScript
public static function GetUser (
    username : String
) : MembershipUser

Parameters

username

The name of the user to retrieve.

Return Value

A MembershipUser object representing the specified user.
Exceptions

Exception typeCondition

ArgumentException

username contains a comma (,).

ArgumentNullException

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

Remarks

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.

Example

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.

Visual Basic
<%@ Page Language="vb" %>
<%@ Import Namespace="System.Web.Security" %>
<script runat="server">

Dim u As MembershipUser

Public Sub Page_Load(sender As Object, args As EventArgs)

  u = Membership.GetUser(User.Identity.Name)

  If Not IsPostBack Then EmailTextBox.Text = u.Email

End Sub

Public Sub UpdateEmailButton_OnClick(sender As Object, args As EventArgs)

  Try
    u.Email = EmailTextBox.Text

    Membership.UpdateUser(u)
  
    Msg.Text = "User e-mail updated."
  Catch e As System.Configuration.Provider.ProviderException
    Msg.Text = e.Message
  End Try

End Sub

</script>
<html>
<head>
<title>Sample: Update User E-Mail</title>
</head>
<body>

<form 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>
C#
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Security" %>
<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>
<head>
<title>Sample: Update User E-Mail</title>
</head>
<body>

<form 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>
Platforms

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

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

Version Information

.NET Framework

Supported in: 2.0
See Also

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