public bool ValidateUser()
{
bool register = true;
tblFirst_Name_Error.Text = RegexValidation.Name_Check(txtFirst_Name.Text);
register = tblFirst_Name_Error.Text != "" ? false : register;
tblLast_Name_Error.Text = RegexValidation.Name_Check(txtLast_Name.Text);
register = tblLast_Name_Error.Text != "" ? false : register;
tblMobile_Error.Text = RegexValidation.Check_Mobile(txtMobile_Number.Text);
register = tblMobile_Error.Text != "" ? false : register;
tblPassword_Error.Text = RegexValidation.Check_Password(txtPassword.Password);
register = tblPassword_Error.Text != "" ? false : register;
tblConfirmPassword_Error.Text = txtPassword.Password != txtConfirm_Password.Password ? "Passwords do not match" : "";
register = tblConfirmPassword_Error.Text != "" ? false : register;
tblState_Error.Text = cbState.SelectedIndex < 0 ? "State not selected" : "";
register = tblState_Error.Text != "" ? false : register;
tblCity_Error.Text = cbCity.IsEnabled == false || cbCity.SelectedIndex < 0 ? "City not selected" : "";
register = tblCity_Error.Text != "" ? false : register;
tblArea_Error.Text = cbArea.IsEnabled == false || cbArea.SelectedIndex < 0 ? "Area not selected" : "";
register = tblArea_Error.Text != "" ? false : register;
tblEmail_Error.Text = RegexValidation.Check_Email(txtEmail.Text);
register = tblEmail_Error.Text != "" ? false : register;
return(register);
}