Greetings
I want to replace an existing diagram with a new one based on a new dataset. I'm able to eliminate the nodes, but the connectors remain which confuses the new diagram. I want to know how I can clear out the diagram ready for a new set of data. I've tried the following so far:
Connectors = new Connector[] { };
Nodes = new Node[] { };
Also tried setting to null and also tried calling:
LayoutManager.Layout.UpdateLayout();
However none of this worked, it only clears out the nodes not the connectors. I'm currently running v.11.3.0.30.
Thanks
Garry Mc
Hi Garry,
Sorry about the inconvenience
caused.
The reported issue “Connectors
Collection does not update visually while reassigning with another collection”
is confirmed as a defect and we have logged an issue report to fix this. This
fix will be available in our upcoming WinRT service pack release.
Workaround:
Instead of using array, please use ObservableCollection<T> for
populating the Nodes and Connector properties of SfDiagram.it will resolve the issue
with clearing Connector Collection by using Clear () method before assigning new
set of data.
We have created a
simple sample to represent this workaround. Please refer to the sample from the
attachment.
Please let us know if
you need any further assistance.
Regards,
Ramya
Thanks for the prompt turn around!! The workaround has solved my issue, so many thanks!
SideNote
I have found that the documentation for the Diagram control is somewhat lacking. As an example, I see there's a ViewModel option however I don't see ANY documentation on how its to be used. The control has a lot of potential but with the lack of documentation its hard to take advantage of.
Hi Garry,
Thank you for the
feedback.
We have a set of
ViewModel classes, but these are classes just implemented from corresponding
interfaces (Example: NodeViewModel implemented INode). Except for
INotifyPropertyChanged, these classes do not have any logic/implementation.
These are just utility classes, just to reduce the time/work of creating a new
one in application side for customers.
All kind of objects
Views (Node), ViewModels (NodeViewModel), Interfaces (INode) have the same set
of properties, so it is not necessary to explain separately for each kind.
A detailed explanation
about adding and rendering a UI and Non-UI element and explained in the below
link. Here we have explained how to use ViewModel and how corresponding views
are created, and how can you override with custom views. Please refer to the link.
Link: http://help.syncfusion.com/UG/winrt/Documents/rendering.htm
Please let us know if
you need any further assistance.
Regards,
Ramya