Httphandlers issue

[George H]

I not sure how to get this to work (5.1 Diagram, asp.net 2). The httphandlers doesn't work with: "Could not load type 'Syncfusion.Web.Forms.Diagram.DiagramRenderHandler' from assembly 'Syncfusion.diagram.web'."

I've added the 5 dll to /bin, made a reference to them. I've tried build/rebuild, removed and re-added to bin, etc.

I have my app running with a different diagram comp and would like to see how your's works before I make final decision.

What am I missing to make it run.

Second question, can a node link back to itself (self-reference).

Thanks.

[J.Nagarajan]

Hi Kaiser,

The diagram web control uses a custom HTTP handler for processing client requests for rendering the diagram image on to the web page. Open the application's configuration file (the web.config) and add the declarative for a HTTP handler that maps incoming rendering requests to the Essential Diagram handler. Please add the below line into your web.config file.(before closing the system.web tag)






I have attached the web config file for v.5.1.0.51. Please refer to it and let me know if you have any questions.

http://www.syncfusion.com/Support/user/uploads/web_43f85041.zip

Please let me know if the above details are helpful to you.

Thanks,
Nagaraj

[George H]

Thanks, that fixed it. Those are different handlers from the downloaded docs.

Are the handlers referencing the dlls in the /bin or GAC? I need to have them reference the /bin dlls if that's not the case.

About the other question...can a node link back to itself?

[Melba Winshia]

Hi Kaiser,

Thank you for the update.

Issue 1: (Are the handlers referencing the dlls in the /bin or GAC)
-------

The handlers refer the dlls in the GAC.

Issue 2: (can a node link back to itself)
-------

Yes. A node can link back to itself by using the below code snippet.

[C#]

SplineNode line = new SplineNode(nodeRectHost.PinPoint, nodeRectHost.PinPoint, new PointF(35, 150));
Decorator decor = line.HeadDecorator;
decor.DecoratorShape = DecoratorShape.FilledFancyArrow;
decor.Size = new SizeF(12, 9);
decor.FillStyle.Color = Color.MidnightBlue;
decor.LineStyle.LineColor = Color.MidnightBlue;
this.DiagramWebControl1.Model.AppendChild(line);

//Connect the port.
nodeRectHost.Ports[1].TryConnect(line.HeadEndPoint);
nodeRectHost.Ports[2].TryConnect(line.TailEndPoint);

Please try running the above sample and let me know if this helps.

http://websamples.syncfusion.com/samples/Diagram.Web/5.1.0.51/67247/main.htm

Please try this and let me know if this helps.

Thanks,
Melba

[Melba Winshia]

Hi Kaiser,

Thank you for the update.

Issue 1: (Are the handlers referencing the dlls in the /bin or GAC)
-------

The handlers refer the dlls in the GAC.

Issue 2: (can a node link back to itself)
-------

Yes. A node can link back to itself by using the below code snippet.

[C#]

SplineNode line = new SplineNode(nodeRectHost.PinPoint, nodeRectHost.PinPoint, new PointF(35, 150));
Decorator decor = line.HeadDecorator;
decor.DecoratorShape = DecoratorShape.FilledFancyArrow;
decor.Size = new SizeF(12, 9);
decor.FillStyle.Color = Color.MidnightBlue;
decor.LineStyle.LineColor = Color.MidnightBlue;
this.DiagramWebControl1.Model.AppendChild(line);

//Connect the port.
nodeRectHost.Ports[1].TryConnect(line.HeadEndPoint);
nodeRectHost.Ports[2].TryConnect(line.TailEndPoint);

Please try running the above sample and let me know if this helps.

http://websamples.syncfusion.com/samples/Diagram.Web/5.1.0.51/67247/main.htm

Please try this and let me know if this helps.

Thanks,
Melba

[George H]

Thanks. So what happens if the dlls can not be loaded into the GAC on a remote server?

[Melba Winshia]

Hi,

Thank you for the update.

The Syncfusion assemblies need to be in the bin folder that is beside the aspx files while deploying. You can refer the below link to get more details regarding deploying Essential Studio for ASP.NET.

http://www2.syncfusion.com/ug/Default.aspx##Essential%20Studio.chm/StartedBase/DeployingEssentialStudioForASPNET.html
http://www.syncfusion.com/Support/user/uploads/webdeploy_8b7da45e.pdf

Please let me know if you have any other question.

Thanks,
Melba