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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VGMembershipInstanceValidateUser Method

Verifies that the supplied user name and password are valid.

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 bool ValidateUser(
	string username,
	string password
)

Parameters

username
Type: SystemString
The name of the user to be validated.
password
Type: SystemString
The password for the specified user.

Return Value

Type: Boolean
true if the supplied user name and password are valid; otherwise, false.
Exceptions
ExceptionCondition
ArgumentNullExceptionusername or password is null.
ArgumentExceptionusername is empty or contains invalid chars ('\', '/', '?', '*', '%', ';', ''', '"', ':', '|', '[', ']', '+', '=', ',').

or

user or password is longer than 64 characters.
VGConfigurationExceptionThe configuration file is not valid

or

A problem occurs during the connection to the repository.

or

The version of the repository or the version of the permissions is not supported by the application.
NotSupportedException

the repository does not support the VisualGuard or Database mode.

Remarks
This method do not change the current user managed by Visual Guard. You must use the Authenticate(String, String, VGAuthenticationMode) method to change the current user.

This method will update the number of invalid password attempts and can lock out the user if the password is invalid.

See Also