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MembershipProvider.GetUserNameByEmail Method

Gets the user name associated with the specified e-mail address.

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

public abstract string GetUserNameByEmail (
	string email
)
public abstract String GetUserNameByEmail (
	String email
)
public abstract function GetUserNameByEmail (
	email : String
) : String
Not applicable.

Parameters

email

The e-mail address to search for.

Return Value

The user name associated with the specified e-mail address. If no match is found, return a null reference (Nothing in Visual Basic).

Takes, as input, an e-mail address and returns the first user name from the data source where the e-mail address matches the supplied email parameter value.

If no user name is found with a matching e-mail address, a null reference (Nothing in Visual Basic) is returned.

If multiple user names are found that match a particular e-mail address, only the first user name found should be returned. You can implement a custom mechanism for ensuring a unique e-mail address for each user name such as the RequiresUniqueEmail property supported by the SqlMembershipProvider provider.

For an example of a MembershipProvider implementation, see Implementing a Profile Provider.

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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