private void ImportData()
 {
     try
     {
         using (DBAuditDataContext dc = new DBAuditDataContext())
         {
             if (ComboUserName.Text != "")
             {
                 string strFirstName = null;
                 string strLastName  = null;
                 string strAddress   = null;
                 string strTelephone = null;
                 string strUserName  = null;
                 int?   intGroupId   = null;
                 string strGroup     = null;
                 int?   intDisabled  = null;
                 int?   intLocked    = null;
                 string strNotes     = null;
                 dc.ProSelectUser(ComboUserName.Text, ref strFirstName, ref strLastName, ref strAddress,
                                  ref strTelephone, ref strUserName, ref intGroupId, ref intDisabled, ref intLocked,
                                  ref strNotes);
                 TxtFirstName.Text = strFirstName;
                 TxtLastName.Text  = strLastName;
                 TxtAddress.Text   = strAddress;
                 TxtTelephone.Text = strTelephone;
                 TxtUserName.Text  = strUserName;
                 dc.ProGetGroupByID(intGroupId, ref strGroup);
                 ComboUserGroups.Text  = strGroup;
                 CheckDisabled.Checked = intDisabled == 1;
                 CheckLocked.Checked   = intLocked == 1;
                 TxtNotes.Text         = strNotes;
             }
             else
             {
                 TxtFirstName.Text     = "";
                 TxtLastName.Text      = "";
                 TxtAddress.Text       = "";
                 TxtTelephone.Text     = "";
                 TxtUserName.Text      = "";
                 TxtPassword.Text      = "";
                 ComboUserGroups.Text  = "";
                 CheckDisabled.Checked = false;
                 CheckLocked.Checked   = false;
             }
         }
     }
     catch (NullReferenceException)
     {
     }
     catch (InvalidOperationException)
     {
         TxtFirstName.Text     = "";
         TxtLastName.Text      = "";
         TxtAddress.Text       = "";
         TxtTelephone.Text     = "";
         TxtUserName.Text      = "";
         TxtPassword.Text      = "";
         ComboUserGroups.Text  = "";
         CheckDisabled.Checked = false;
         CheckLocked.Checked   = false;
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message);
     }
 }