AE基础(2)

 //添加图层文件
        private void addLayerFile()
        {
            System.Windows.Forms.OpenFileDialog openFileDialog;
            openFileDialog = new OpenFileDialog();
            openFileDialog.Title = "打开图层文件";
            openFileDialog.Filter = "map documents(*.lyr)|*.lyr";
            openFileDialog.ShowDialog();
            string filePath = openFileDialog.FileName;
            try
            {
                axMapControl1.AddLayerFromFile(filePath);
            }
            catch (Exception e)
            {
                MessageBox.Show("添加图层失败！！！" + e.ToString());
            }
        }
        //添加shape文件
        private void addShapeFile()
        {
            System.Windows.Forms.OpenFileDialog openFileDialog;
            openFileDialog = new OpenFileDialog();
            openFileDialog.Title = "打开图层文件";
            openFileDialog.Filter = "map documents(*.shp)|*.shp";
            openFileDialog.ShowDialog();
         
            try
            {   
                FileInfo fileInfo = new FileInfo(openFileDialog.FileName);
                string path = openFileDialog.FileName.Substring(0, openFileDialog.FileName.Length - fileInfo.Name.Length);
                axMapControl1.AddShapeFile(path, fileInfo.Name);
            }
            catch (Exception e)
            {
                MessageBox.Show("添加图层失败！！！" + e.ToString());
            }
        }
        //删除图层
        private void deleteLayer()
        {
            try
            {
                //删除地图中所有图层
                for (int i = axMapControl1.LayerCount - 1; i >= 0; i--)
                {
                    axMapControl1.DeleteLayer(i);
                }
            }
            catch (Exception e)
            {
                MessageBox.Show("删除图层失败！！！" + e.ToString());
            }
        }
        //移动图层
        private void moveLayer()
        {
            if (axMapControl1.LayerCount > 0)
            {
                try
                {
                    //将最下层图层文件移动到最上层
                    axMapControl1.MoveLayerTo(axMapControl1.LayerCount - 1, 0);
                }
                catch (Exception e)
                {
                    MessageBox.Show("移动图层失败！！！" + e.ToString());
                }
            }
        }