private void btnAddMeasure_Click(object sender, RoutedEventArgs e)
 {
     CategorysManager mc=new  CategorysManager();
     ProductMeasure m = new ProductMeasure
     {
         ProMeasureType = MeasureTxtBox.Text,
         ProMeasureUnit = DescriptionTxtBox.Text
     };
     mc.AddMeasure(m);
        // CategorysManager.NewestMeasure = m;
     DialogResult = true;
     Close();
 }