TreeView添加图片

实现方式一：

通过代码方式实现如下所示：

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private string FilePath = Application.StartupPath + "\\Images\\";            Image img = new Bitmap(FilePath + "one.ico");          Image img1 = new Bitmap(FilePath + "two.ico");          ImageList imgs = new ImageList();          imgs.Images.Add(img);          imgs.Images.Add(img1);          this.tvTest.ImageList = imgs;            TreeNode node = new TreeNode();          node.Text = "Root";          this.tvTest.Nodes.Add(node);          node.ImageIndex = 0;          node.SelectedImageIndex = 0;            TreeNode node1 = new TreeNode();          node1.Text = "root001";          TreeNode node2 = new TreeNode();          node2.Text = "root002";          node.Nodes.Add(node1);          node.Nodes.Add(node2);          this.tvTest.ExpandAll();          node1.ImageIndex =1;          node1.SelectedImageIndex = 1;          node2.ImageIndex = 1;          node2.SelectedImageIndex = 1;

实现方式二：

通过绑定ImageList控件实现，如下所示：

操作步骤：第一步，工具箱中拖动ImageList控件；第二步，ImageList控件Images属性添加图片集合；第三步，TreeView控件绑定ImageList属性；

第四步，代码如下所示：

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TreeNode node = new TreeNode(); node.Text = "Root"; this.tvTest.Nodes.Add(node); node.ImageIndex = 0; node.SelectedImageIndex = 0;   TreeNode node1 = new TreeNode(); node1.Text = "root001"; TreeNode node2 = new TreeNode(); node2.Text = "root002"; node.Nodes.Add(node1); node.Nodes.Add(node2); this.tvTest.ExpandAll(); node1.ImageIndex =1; node1.SelectedImageIndex = 1; node2.ImageIndex = 1; node2.SelectedImageIndex = 1;

运行效果如下：