But this functionality only allows user to enable\disable summaries manually. In fact my requirement is to make visible\unvisible additional summary row under specific circumstances.

Yes it worked very well!

But in my case requirement was satisfied with simple manipulating SummaryDisplayArea property:

FieldSettings.SummaryDisplayArea = SummaryDisplayAreas.None

Thank you very much for your help!

Hello,

Did this approach work for you?  Please let me know if you have further questions.

Thanks,

Before attempting a custom dependency property, I just want to check with you whether a more simplistic approach might work; namely to store the collection of SummaryDefinitions in a variable so it can be cleared from and restored to the FieldLayout as needed.

The attached sample demonstrates this approach.  It works in this simple case with a single FieldLayout. 

if (xamDataGrid1.FieldLayouts[0].SummaryDefinitions.Count > 0)
      {
          this.xamDataGrid1.FieldLayouts[0].SummaryDefinitions.Clear();
       }
      else
       {
            foreach (SummaryDefinition def in SummColl)
            {
               this.xamDataGrid1.FieldLayouts[0].SummaryDefinitions.Add(def);
             }
        }

Hello,

I am not sure if you can create a custom DependencyProperty for the SummaryDefinitions property in order to bind to it....or if that indeed is the best route to pursue.  I will research this further and reply back here in the next couple of days when I have more information.

Thanks,

Hello cero,

Thank you for clarifying the situation.  I have forwarded your post on to Developer Support.  They should be able to provide you with the requested information.

Elizabeth Albert
Localization Engineer