Membership.FindUsersByName Method (String)

Gets a collection of membership users where the user name contains the specified user name to match.

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

'Declaration
Public Shared Function FindUsersByName ( _
	usernameToMatch As String _
) As MembershipUserCollection
'Usage
Dim usernameToMatch As String
Dim returnValue As MembershipUserCollection

returnValue = Membership.FindUsersByName(usernameToMatch)
public static MembershipUserCollection FindUsersByName (
	String usernameToMatch
)
public static function FindUsersByName (
	usernameToMatch : String
) : MembershipUserCollection
Not applicable.

Parameters

usernameToMatch

The user name to search for.

Return Value

A MembershipUserCollection that contains all users that match the usernameToMatch parameter. Leading and trailing spaces are trimmed from the usernameToMatch parameter value.

Exception typeCondition

ArgumentException

usernameToMatch is an empty string.

ArgumentNullException

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

FindUsersByName returns a list of membership users where the user name matches the supplied usernameToMatch for the configured applicationName.

The SqlMembershipProvider performs its search using a LIKE clause against the usernameToMatch parameter. Any wildcards that are supported by SQL Server in LIKE clauses can be used in the usernameToMatch parameter value.

Leading and trailing spaces are trimmed from all parameter values.

The following code example uses the FindUsersByName method to retrieve membership user information from the membership database based on user input and displays the results in pages of data.

Security noteSecurity Note:

This example contains a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview (Visual Studio).

<%@ Page Language="VB" %>
<%@ 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">

Public Sub GoButton_OnClick(sender As Object, args As EventArgs)
  UserGrid.DataSource = Membership.FindUsersByName(UsernameTextBox.Text)
  UserGrid.DataBind()
End Sub

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Sample: Find Users</title>
</head>
<body>

<form id="form1" runat="server">
  <h3>User List</h3>

  Username to Search for: 
    <asp:TextBox id="UsernameTextBox" runat="server" />
    <asp:Button id="GoButton" Text=" Go " OnClick="GoButton_OnClick" runat="server" /><br />

  <asp:DataGrid id="UserGrid" runat="server"
                CellPadding="2" CellSpacing="1"
                Gridlines="Both">
    <HeaderStyle BackColor="darkblue" ForeColor="white" />
  </asp:DataGrid>

</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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