How to embed a usercontrol

GoDiagram (6 and previous)
1

Hi,
Awesome product, but I’ve got a real winner of a question. I would like to essentially create a windows user control and “embed” it within a node. My goal is to have access to windows control functionality as well as the inherent capabilities of a node. For example, I would like to create a small user control with several buttons on it. I then want to have several ports. This user control I would like to use as a node and “connect” it to other similar nodes by creating edges between the ports. In trolling through your documentation, I believe that inheriting from the GoObject class is the way to go.

Is what I am trying to do within the capabilities of GoDiagram.Net? And if so, am I on the right track?

Thanks!

2

Basically, you just need to use the GoControl class. GoControl inherits from GoObject, so it has all the properties that any GoObject has but has the “appearance” of a WinForms Control.

Here are a few examples that make use of GoControl:

ControlGroup.cs demonstrates how to provide a “border” around a Control by having a GoRectangle be slightly larger than the GoControl, both GoObjects being children of a group. ControlGroup.cs (1.8 KB)

PropertyGridNode.cs does something similar, but it assumes the Control to be shown is a PropertyGrid. Initially the PropertyGrid is showing the properties of the PropertyGridNode itself. PropertyGridNode.cs (4.4 KB)

BrowserBalloon.cs inherits from GoBalloon to show a WebBrowser control instead of a plain GoText label. (The WebBrowser control is new in .NET 2.0.) The following screenshot shows our home page inside the balloon. BrowserBalloon.cs (2.7 KB)

3

Sweet! Thanks for the quick response.

4

I tried to use this example in my code in different scenario, say, when user hover a node the program will popup this BrowserBalloon. Something like this:

void OnHoverOverObject(object sender, GoObjectEventArgs e)
{

         if (e.GoObject.ParentNode != null)
        {
             Doc.Balloon = new BrowserBalloon();
             Doc.Balloon.Anchor = node;
             Doc.Balloon.Position = BalloonPosition(node.Position, node.Size);
             Doc.Add(Doc.Balloon);
        }

}

The balloon shows up, but the browser content is not. The result is like this.

I notices that the document I am working on has 3 layers. Does that have something to do with this?

Thanks

5

Never mind. my mistake.