Question

我正在创建一个visio图，但需要检查现有的形状是否已连接。我用3种不同的方法编写了一种方法来确定这一点。我找不到任何形状方法直接这样做。这就是我想出来的。我更喜欢第三种方法，因为它不涉及迭代。还有其他建议吗？

private bool  ShapesAreConnected(Visio.Shape shape1, Visio.Shape shape2)
    {  
     // in Visio our 2 shapes will each be connected to a connector, not to each other
     // so we need to see if theyare both connected to the same connector

       bool Connected = false;
        // since we are pinning the connector to each shape, we only need to check
        // the fromshapes attribute on each shape
        Visio.Connects shape1FromConnects = shape1.FromConnects;
        Visio.Connects shape2FromConnects = shape2.FromConnects;

        foreach (Visio.Shape connect in shape1FromConnects)
        {
            // first method
            // for each shape shape 1 is connected to, see if shape2 is connected 
            var shape = from Visio.Shape cs in shape2FromConnects where cs == connect select cs;
            if (shape.FirstOrDefault() != null) Connected = true;

            // second method, convert shape2's connected shapes to an IEnumerable and
            // see if it contains any shape1 shapes  
            IEnumerable<Visio.Shape> shapesasie = (IEnumerable<Visio.Shape>)shape2FromConnects;


            if (shapesasie.Contains(connect))
            {
                return true;
            }
        }

        return Connected;

        //third method
       //convert both to IEnumerable and check if they intersect
        IEnumerable<Visio.Shape> shapes1asie = (IEnumerable<Visio.Shape>)shape1FromConnects;
        IEnumerable<Visio.Shape> shapes2asie = (IEnumerable<Visio.Shape>)shape2FromConnects;
        var shapes = shapes1asie.Intersect(shapes2asie);
        if (shapes.Count() > 0) { return true; }
        else { return false; }

    }

Answer 1

如果您使用的是Visio 2010，请查看Connectivity API

来自Visio MSDN博客的链接 http://blogs.msdn.com/b/visio/archive/2009/09/22/the-visio-2010-connectivity-api.aspx

作为参考，StackOverflow上还有一个相关的问题 Shape connectors in Visio

Visio - 检查形状是否已连接

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