Offset of custom connectors doesn't work after graphSource.Clear()

1 posts, 0 answers
  1. Jackey
    Jackey avatar
    71 posts
    Member since:
    Oct 2014

    Posted 11 Apr 2015 Link to this post

    Hi team,

    In order to make my problem clear, I would list what I've done currently.

    1. I am using MVVM, so I have view models of nodes, links and a graph source. All these implementations follow the guideline of RadDiagram MVVM. And it works fine.

    2. Then I want to define some custom connectors. According to this thread, I manage to add custom connectors to my digram.

    3. The solution of that thread mentioned above is using a attached property. And I also have a requirement: I need to remove or add nodes runtime. So I have following codes


    if (this._graphSource == null)
        this._graphSource = new LineGraph();
    return this._graphSource;

    And when my application starts up for the first time, the offsets of the custom connectors work properly. However, when I add or remove nodes, the above if statement wouldn't be executed, it would clear all the nodes existed, and re-populate the graph again. However, the offsets don't take effect now. Removing the if statement, then the offset works no matter I add or delete nodes.

    The key is I don't want to create the LineGraph object each time I delete or add nodes. 

    Hope make myself clear.

    Best Regards,


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