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Drill down and custom properties database persistence

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91541 Nov 23,2009 03:07 PM UTC Nov 26,2009 04:33 PM UTC WinForms 2
Tags: Diagram
Domenico Mozzone
Asked On November 23, 2009 03:07 PM UTC

Good morning,
I’m evaluating Syncfusion winforms diagram library.
I have some requisites that I could not verify looking at documents and samples.
1. I need to implement a top down diagram structure. The behavior is similar to drill down example. Expanding a node I need to navigate to another diagram persisted on file system or database. Could you help me to understand how to do it?
2. I would like to use diagrams to implement a graphical data input. My idea is to create custom shapes with custom properties, and bind such properties to existing database tables. Have you an example to solve a problem like this?
Thank you very much
Domenico Mozzone

Domenico Mozzone
Replied On November 26, 2009 03:18 PM UTC

Thank you Dinesh.
Meanwhile I focused my requisites. As I have an sql database with “nodes” and “connectors” tables I tried in vain to save a custom Symbol (derived by your Syncfusion sample CustomSymbol_2008) into Nodes table. I tried different ways but I did not succeeded in finding the correct way to:
1. Create an sql database table to save custom symbols
2. To extend custom symbol in order to be persisted (I’m using a LINQ to SQL Datacontext)
So my new questions are:
- How can I save (and read into a diagram) custom symbols, with custom properties, to sql database table?
- How can I customize the behavior and properties of a symbol designed with the Essential Diagram symbol designer by subclassifying it at application level? The custom symbol example provided with Syncfusione demo seems to do such, reading explanation, but looking at code I can’t understand how the task is performed: it seems that the custom symbol is build using only code, not subclassifying it using a symbol designer Essential Diagram symbol designer.
These points are key features for my application.
Have a nice day

Dinesh M [Syncfusion]
Replied On November 26, 2009 04:33 PM UTC

Hi Domenico,

Since the same question has been posted in forum provided in the link below, we will follow up further in there.




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