SharpMap 类型转换 - WPF

Question

我想在 SharpMap 框中显示一个 shapefile .shp，我写了这段代码：

    public partial class Details : UserControl
    {
        public Details()
        {
            InitializeComponent();

            SharpMap.Layers.VectorLayer vlay = new SharpMap.Layers.VectorLayer("States");
            string path = @"D:\Studies\file.shp";
            SharpMap.Map myMap = new SharpMap.Map(new System.Drawing.Size(500, 250));
            vlay=new SharpMap.Data.Providers.ShapeFile(path);
            MapBox.Map.Layers.Add(vlay);
            MapBox.Map.ZoomToExtents();

        }
    }

它没有运行，它显示：

SharpMap.Data.Providers.ShapeFile可以转换成SharpMap.Layers.VectorLayer

我该怎么办？

Answer 1

分配 vlay.DataSource，就像 Clemens 说的：

 SharpMap.Layers.VectorLayer vlay = new SharpMap.Layers.VectorLayer("States");
 string path = @"D:\Studies\file.shp";
 vlay.DataSource = new SharpMap.Data.Providers.ShapeFile(path);
 MapBox.Map.Layers.Add(vlay);
 MapBox.Map.ZoomToExtents();
 MapBox.Refresh();