protected override bool OnServerSideEvaluate()
{
String username = GetControlValidationValue("UserLoginId");
String originalUsername = ((HiddenField) FindControl("OriginalUserLoginId")).Value;
if (String.IsNullOrEmpty(username))
{
ErrorMessage = ValidationErrors.UsernameCannotBeEmpty;
return false;
}
var controller = new UserManagementController();
if (controller.ExistsUsername(username) && !username.Equals(originalUsername))
{
ErrorMessage = String.Format(ValidationErrors.UsernameAlreadyExists, username);
return false;
}
return true;
}
public ValidationResult ValidateUsername(string username, string originalUsername)
{
// This web service in turns call a WCF service which resides on the same or different systems.
ValidationResult result = new ValidationResult();
if (String.IsNullOrEmpty(username))
{
result.Success = false;
result.ErrorCode = -1;
result.ErrorText = ValidationErrors.UserIDCannotBeEmpty;
return result;
}
UserManagementController controller = new UserManagementController();
if (controller.ExistsUsername(username) && !username.Equals(originalUsername))
{
result.Success = false;
result.ErrorCode = -1;
result.ErrorText = String.Format(ValidationErrors.UsernameAlreadyExists, username);
return result;
} else
{
result.Success = true;
}
return result;
}