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coding rocks

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Anchor pattern changes while loading
Aug 18th, 2011 at 4:38am
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Hi,
while loading the saved diagram , anchor behavior change to normal position.
As I applied anchor pattern also but its not showing the same while loading it from file.
  
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Stoyo
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Re: Anchor pattern changes while loading
Reply #1 - Aug 18th, 2011 at 5:29am
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Hi,

What do you mean by "change to normal position"? If you are using custom AnchorPattern objects and they are not loaded, make sure you create them with the constructor that takes an id argument. AnchorPatterns are saved only by id, and you should have them already defined when  loading the diagram file next time.

I hope that helps,
Stoyan
  
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coding rocks

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Re: Anchor pattern changes while loading
Reply #2 - Aug 18th, 2011 at 1:11pm
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Hi,
"Change to normal position" means Link Cascading style is not shown.

Code
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 diagram.LinkStyle = LinkStyle.Cascading;
 diagram.LinkSegments = 3;

like this I am creating linkstyle, and
loading diagram in this way :
Code
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 diagram.LoadFromString(xml);


Now tell me what I need to do?
  
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Stoyo
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Re: Anchor pattern changes while loading
Reply #3 - Aug 18th, 2011 at 2:56pm
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Do you mean that loading a file changes the LinkStyle property to Polyline? LinkStyle is saved too when you call SaveToXml, so if you load an older file created before you started using Cascading links, LinkStyle will revert to Polyline. In such case, you will have to reset the property to Cascading after calling LoadFromXml.

I hope that helps,
Stoyan
  
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coding rocks

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Re: Anchor pattern changes while loading
Reply #4 - Sep 7th, 2011 at 9:54am
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Hi
How to reset the property to Cascading after calling LoadFromXml ?
  
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Stoyo
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Re: Anchor pattern changes while loading
Reply #5 - Sep 7th, 2011 at 9:59am
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Like this:

Code
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diagram.LoadFromString(xml);
diagram.LinkStyle = LinkStyle.Cascading;


Diagram.LinkStyle is a default value for new links. If you need to change the style of existing links after loading a file, you will have to loop over them:

Code
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diagram.LoadFromString(xml);
diagram.LinkStyle = LinkStyle.Cascading;
foreach (DiagramLink link in diagram.Links)
	link.Style = LinkStyle.Cascading;


I hope that helps,
Stoyan
  
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coding rocks

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Re: Anchor pattern changes while loading
Reply #6 - Sep 8th, 2011 at 4:51am
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I really dont know where I am wrong but still its not working for me

This is how I am doing in my application

Code
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Diagram.RegisterItemClass(typeof(ChartNode), "classNodeId", 1);
string xml = e.Result; //e.result is coming from DB

 if (xml.Length > 0)
 ddtarget.LoadFromString(xml);

 ddtarget.LinkStyle = LinkStyle.Cascading;
 ddtarget.LinkSegments = 3;


Can you please provide one sample zip code for this where we save & load for same Link style?

Thanks
  
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Stoyo
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Re: Anchor pattern changes while loading
Reply #7 - Sep 8th, 2011 at 10:17am
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Could you explain more clearly what the problem is? Are you saying that the loaded links don't have the same link.Style as when they were saved?
  
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coding rocks

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Re: Anchor pattern changes while loading
Reply #8 - Sep 8th, 2011 at 11:00am
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Yes, when I save the diagram Link style is Cascading



but if it loads from DB then Link style change
  
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Re: Anchor pattern changes while loading
Reply #9 - Sep 8th, 2011 at 11:20am
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Could you email the saved xml file to support@mindfusion.eu?
  
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Re: Anchor pattern changes while loading
Reply #10 - Sep 8th, 2011 at 12:14pm
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I have send you an email with xml file please check & let me know


Thanks
  
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Re: Anchor pattern changes while loading
Reply #11 - Sep 8th, 2011 at 3:15pm
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This is what we got:


Does it look different from what you saved in the file? The links shapes correspond exactly to the point coordinates that are saved in the file. It seems you are using a custom node type registered as "classNodeId", which our developer replaced with ShapeNodes in order to load the file. Does your custom type override the CreateConnectionPoint method by any chance?
  
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Re: Anchor pattern changes while loading
Reply #12 - Sep 9th, 2011 at 5:02am
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Hi
Yes diagram looks same.
My custom class not overriding CreateConnectionPoint method. Please tell me how to use it.
Also If I remove my custom class then with shapeNode what I need to do?


Thanks for Support 8)
  
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Re: Anchor pattern changes while loading
Reply #13 - Sep 9th, 2011 at 6:52am
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Hi,

Check your code then, there should be some assignments to the links' Style or ControlPoints that change them to straight lines after calling LoadFromXml. If you think the problem is in LoadFromXml, try to reproduce it in a test project and email it to us for our developer to investigate.

Stoyan
  
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