This method indicates whether the specified role name exists in the database.

Declaration

// C#
public override bool RoleExists(string roleName);

Parameters

• roleName

  The role name being searched for in the database.

Return Value

Returns true if the role name exists; otherwise, returns false.

Exceptions

ArgumentNullException - The roleName parameter is null

OracleException - An Oracle-related error has occurred.

ArgumentException - The roleName parameter is an empty string, contains a comma, or is longer than 256 characters.