问DGML:如何启用自定义图表的“转到定义”？

EN

void GotoDefinition(
    IServiceProvider serviceProvider, 
    SourceInfo source)
{
    IVsUIHierarchy hierarchy;
    uint itemId;
    IVsWindowFrame windowFrame;
    IVsTextView view;

    VsShellUtilities.OpenDocument(
        serviceProvider,
        source.Filename,
        Guid.Empty,
        out hierarchy,
        out itemId,
        out windowFrame,
        out view);

    if (view != null)
    {
        int line, column;
        int pos = source.TextRange.Start;
        if (view.GetLineAndColumn(pos, out line, out column) == VSConstants.S_OK)
        {
            view.SetCaretPos(line, column);
            view.CenterLines(line, 1);
        }
    }
}

class SourceInfo
{
    public string Filename { get; set; }

    public TextRange TextRange { get; set; }
}