如何做一个带有Image的TreeView,直接继承TreeView然后加上ImageList的试过不行,WinForm下的

Question

rt

Answer 1

imagelist设置好以后,记得把treeview的treenode的imageindex什么的给设置好应该可以的.

Answer 2

public class MyTreeView:TreeView
    {
        private System.ComponentModel.IContainer components;        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            System.Windows.Forms.ImageList imageList1;
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(YqunTreeView));
            imageList1 = new System.Windows.Forms.ImageList(this.components);
            this.SuspendLayout();
            // 
            // imageList1
            // 
            imageList1.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList1.ImageStream")));
            imageList1.TransparentColor = System.Drawing.Color.Transparent;
            imageList1.Images.SetKeyName(0, "color1.ico");
            imageList1.Images.SetKeyName(1, "color2.ico");
            imageList1.Images.SetKeyName(2, "color3.ico");
            // 
            // YqunTreeView
            // 
            this.ImageIndex = 0;
            this.ImageList = imageList1;
            this.LineColor = System.Drawing.Color.Black;
            this.SelectedImageIndex = 0;
            this.ResumeLayout(false);        }
        
    }
为什么不显示图片

Answer 3

你查看以下imagelist是否正确生成