Drag/Drop RadChart.DataSeries

[Dan]

I have an application that has 2 charts, where each chart definition is "StackedBarSeriesDefinition". 

What I would like to be able to do is drag one of the dataseries from one chart to the other chart, and vice versa.  Is this possible?

Thanks,
Dan

[Miroslav]

Hello Dan,

I am attaching an example application where I have implemented DragDrop between two charts. Is this what you needed? The example shows how this is done with 2 Charts, but you can easily see how this can be done for more.

Here is a screen:




On a side note, I could not think of a scenario where this kind of DragDrop can be used. Could you please share what scenario does this support?

Kind regards,
Miroslav
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.

[Dan]

Extremely helpful.  I really appreciate including the sample solution as well.  Much appreciated!

Dan

[Dan]

I attached zip code works great, but i when i changed my references to point to the "RadControls for Silverlight Q1 2009" assemblies, the code will not compile.

The following code will not compile:

 

 

RadDragAndDropManager.AddDragQueryHandler(leftChart, OnDragQuery);

 

 

RadDragAndDropManager.AddDragInfoHandler(leftChart, OnDragInfo);

 

 

RadDragAndDropManager.AddDragQueryHandler(rightChart, OnDragQuery);

 

 

RadDragAndDropManager.AddDragInfoHandler(rightChart, OnDragInfo);

I searched the forums on "AddDragQueryHandle" looking for a suggested work around and could not find anything.  any suggestions?

Thanks,
Dan

 

[Miroslav]

Hello Dan,

Yes, there is an easy workaround. These static methods were added to DragDrop with the port to WPF because this is a standard pattern  in WPF when creating routed events and they also appeared in Silverlight for code compatibility.

In SL and in WPF you can replace it with the following equivalent:

leftChart.AddHandler(RadDragAndDropManager.DragQueryEvent, new
EventHandler<DragDropQueryEventArgs>(OnDragQuery));

Similarly for the other events. Just make sure that you have this using, because AddHandler is an extension method:

using Telerik.Windows;

Do come back to us if you have more questions or feedback,
All the best,
Miroslav
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.

[Dan]

Thanks, worked great.

[Carlos Sesma]

I'd like to see an example of this drag drop functionality in combination with a chart using a list as datasource like this example
205794_stackedbarchart
could you please give some advice on how to accomplish this please?

in my case i need at least 2 charts having multiple series. and every time i try to enable dragdrop it does not work. the series just dont drag.

regards.

[Carlos Sesma]

I figured it out by my self, thank you.

[PEIYANG]

How to drag the line in  the chart?not two chart,just one chart!