Visual Guard Class Library Documentation
Visual Guard API Reference
Novalys.VisualGuard.Security.Membership
VGMembershipInstance Class
VGMembershipInstance Methods
AddActiveDirectoryEntity Method
AddActiveDirectoryGroup Method
AddActiveDirectoryUser Method
AddDBUser Method
AddFederatedUser Method
AddWindowsAccount Method
ApproveUser Method
ChangePassword Method
ChangePasswordByAnswer Method
ChangePasswordQuestionAndAnswer Method
CreateActiveDirectoryUser Method
CreateCustomUser Method
CreateUser Method
CreateUserForCurrentApplication Method
DeleteUser Method
DeleteUserById Method
DeleteWindowsAccount Method
DisapproveUser Method
DuplicateDBUser Method
DuplicateVGUser Method
DuplicateWindowAccountUser Method
FindInactiveUsersByLastActivityDate Method
FindUsersByAuthenticationMode Method
FindUsersByEmail Method
FindUsersByFirstName Method
FindUsersByLastName Method
FindUsersByName Method
FindUsersByProfileAttributeValue Method
FindUsersByState Method
FindUsersInAdfsServer Method
FindUsersInApplication Method
FindUsersWithoutApplications Method
ForcePassword Method
GetAllAuthenticationModeUsed Method
GetAllIdentitiesModulesUsed Method
GetAllUsers Method
GetChangePasswordIdentifier Method
GetPassword Method
GetPasswordQuestion Method
GetPrincipalCount Method
GetRecentUsers Method
GetUser Method
GetUserByEmail Method
GetUserById Method
GetUserIdByEmail Method
GetUserNameByEmail Method
GetWindowsAccount Method
GrantMembershipPermission Method
LockUser Method
ResetPassword Method
RevokeMembershipPermission Method
UnlockUser Method
UpdateUser Method
ValidateUser Method
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VGMembershipInstanceGetUserNameByEmail Method

Gets a user name where the e-mail address for the user matches the specified e-mail address.

Namespace:  Novalys.VisualGuard.Security.Membership
Assembly:  Novalys.VisualGuard.Security (in Novalys.VisualGuard.Security.dll) Version: 2019.1.831.19 (2019.1.0831.19)
Syntax
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public string GetUserNameByEmail(
	string emailToMatch
)

Parameters

emailToMatch
Type: SystemString
The e-mail address to search for.

Return Value

Type: String
The user name where the e-mail address for the user matches the specified e-mail address. If no match is found, a null reference (Nothing in Visual Basic) is returned.
Exceptions
ExceptionCondition
ArgumentNullExceptionemailToMatch is null.
ArgumentExceptionemailToMatch is empty or longer than 64 characters after trimming.
Remarks

GetUserNameByEmail can be used to retrieve the user name for a membership user in the case where a user does not know their user name, but does know their e-mail address. If more than one user in the data store has the same e-mail address, the first user name encountered is returned.

Leading and trailing spaces are trimmed from all parameter values.
See Also