注意采用了两个treeListColumn,一个用来展示名称,一个用来展示编码.这样的好处在于作品名维护的时候,可以调用编码,而不需要重新匹配对比了.下面是完整的代码. using System;

using System.Drawing;

using System. Collections;

using System.ComponentModel;

using System.Windows.Forms;

namespace WindowsApplication1

{

    /** <summary>

    /// typemanage 的摘要说明。

    /// </summary>

    public class typemanage : System.Windows.Forms.Form

     {

        private DevExpress.XtraEditors.TextEdit textEdit1;

        private DevExpress.XtraTreeList.TreeList treeList1;

        private DevExpress.XtraTreeList.Columns.TreeListColumn treeListColumn1;

        private DevExpress.XtraEditors.Repository.RepositoryItemTextEdit repositoryItemTextEdit1;

        private DevExpress.XtraEditors.SimpleButton simpleButton1;

        private DevExpress.XtraEditors.SimpleButton simpleButton2;

        private DevExpress.XtraEditors.SimpleButton simpleButton3;

        private System.Windows.Forms.Label label1;

        int nodeid=0;

        DevExpress.XtraTreeList.Nodes.TreeListNode deletenode;

        private DevExpress.XtraTreeList.Columns.TreeListColumn treeListColumn2;

        private DevExpress.XtraEditors.Repository.RepositoryItemTextEdit repositoryItemTextEdit2;

        private System.Windows.Forms.Label label2;

        private DevExpress.XtraEditors.TextEdit textEdit2;

        /** <summary>

        /// 必需的设计器变量。

        /// </summary>

        private System.ComponentModel.Container components = null;

        public typemanage()

         {

            //

            // Windows 窗体设计器支持所必需的

            //

            InitializeComponent();

            //

            // TODO: 在 InitializeComponent 调用后添加任何构造函数代码

            //

        }

        /** <summary>

        /// 清理所有正在使用的资源。

        /// </summary>

        protected override void Dispose( bool disposing )

         {

            if( disposing )

             {

                if(components != null)

                 {

                    components.Dispose();

                }

            }

            base.Dispose( disposing );

        }

        Windows 窗体设计器生成的代码#region Windows 窗体设计器生成的代码

        /** <summary>

        /// 设计器支持所需的方法 - 不要使用代码编辑器修改

        /// 此方法的内容。

        /// </summary>

        private void InitializeComponent()

         {

            this.textEdit1 = new DevExpress.XtraEditors.TextEdit();

            this.treeList1 = new DevExpress.XtraTreeList.TreeList();

            this.treeListColumn1 = new DevExpress.XtraTreeList.Columns.TreeListColumn();

            this.repositoryItemTextEdit1 = new DevExpress.XtraEditors.Repository.RepositoryItemTextEdit();

            this.simpleButton1 = new DevExpress.XtraEditors.SimpleButton();

            this.simpleButton2 = new DevExpress.XtraEditors.SimpleButton();

            this.simpleButton3 = new DevExpress.XtraEditors.SimpleButton();

            this.label1 = new System.Windows.Forms.Label();

            this.treeListColumn2 = new DevExpress.XtraTreeList.Columns.TreeListColumn();

            this.repositoryItemTextEdit2 = new DevExpress.XtraEditors.Repository.RepositoryItemTextEdit();

            this.label2 = new System.Windows.Forms.Label();

            this.textEdit2 = new DevExpress.XtraEditors.TextEdit();

            ((System.ComponentModel.ISupportInitialize)(this.textEdit1.Properties)).BeginInit();

            ((System.ComponentModel.ISupportInitialize)(this.treeList1)).BeginInit();

            ((System.ComponentModel.ISupportInitialize)(this.repositoryItemTextEdit1)).BeginInit();

            ((System.ComponentModel.ISupportInitialize)(this.repositoryItemTextEdit2)).BeginInit();

            ((System.ComponentModel.ISupportInitialize)(this.textEdit2.Properties)).BeginInit();

            this.SuspendLayout();

            // 

            // textEdit1

            // 

            this.textEdit1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));

            this.textEdit1.EditValue = "新增1";

            this.textEdit1.Location = new System.Drawing.Point(88, 248);

            this.textEdit1.Name = "textEdit1";

            this.textEdit1.Size = new System.Drawing.Size(128, 21);

            this.textEdit1.TabIndex = 12;

            // 

            // treeList1

            // 

            this.treeList1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 

                | System.Windows.Forms.AnchorStyles.Right)));

            this.treeList1.Columns.AddRange(new DevExpress.XtraTreeList.Columns.TreeListColumn[]  {

                                                                                                     this.treeListColumn1,

                                                                                                     this.treeListColumn2});

            this.treeList1.Location = new System.Drawing.Point(224, 16);

            this.treeList1.Name = "treeList1";

            this.treeList1.BeginUnboundLoad();

            this.treeList1.AppendNode(new object[]  {

                                                       "型材",

                                                       "01"}, -1);

            this.treeList1.AppendNode(new object[]  {

                                                       "门窗五金",

                                                       "02"}, -1);

            this.treeList1.AppendNode(new object[]  {

                                                       "辅料",

                                                       "03"}, -1);

            this.treeList1.AppendNode(new object[]  {

                                                       "中空玻璃用料",

                                                       "04"}, -1);

            this.treeList1.EndUnboundLoad();

            this.treeList1.RepositoryItems.AddRange(new DevExpress.XtraEditors.Repository.RepositoryItem[]  {

                                                                                                               this.repositoryItemTextEdit1,

                                                                                                               this.repositoryItemTextEdit2});

            this.treeList1.Size = new System.Drawing.Size(264, 264);

            this.treeList1.Styles.AddReplace("Preview", new DevExpress.Utils.ViewStyle("Preview", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, true, false, DevExpress.Utils.HorzAlignment.Near, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(255))), System.Drawing.Color.FromArgb(((System.Byte)(10)), ((System.Byte)(36)), ((System.Byte)(106)))));

            this.treeList1.Styles.AddReplace("FooterPanel", new DevExpress.Utils.ViewStyle("FooterPanel", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Far, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(212)), ((System.Byte)(208)), ((System.Byte)(200))), System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(0)))));

            this.treeList1.Styles.AddReplace("GroupButton", new DevExpress.Utils.ViewStyle("GroupButton", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(252)), ((System.Byte)(248)), ((System.Byte)(240))), System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(0)))));

            this.treeList1.Styles.AddReplace("EvenRow", new DevExpress.Utils.ViewStyle("EvenRow", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(212)), ((System.Byte)(208)), ((System.Byte)(200))), System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(0)))));

            this.treeList1.Styles.AddReplace("TreeLine", new DevExpress.Utils.ViewStyle("TreeLine", "TreeList", new System.Drawing.Font("Microsoft Sans Serif", 8F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(255))), System.Drawing.Color.FromArgb(((System.Byte)(128)), ((System.Byte)(128)), ((System.Byte)(128)))));

            this.treeList1.Styles.AddReplace("PressedColumn", new DevExpress.Utils.ViewStyle("PressedColumn", "TreeList", new System.Drawing.Font("Tahoma", 10F, System.Drawing.FontStyle.Bold), "HeaderPanel", ((DevExpress.Utils.StyleOptions)(((DevExpress.Utils.StyleOptions.StyleEnabled | DevExpress.Utils.StyleOptions.UseBackColor) 

                | DevExpress.Utils.StyleOptions.UseForeColor))), true, false, false, DevExpress.Utils.HorzAlignment.Near, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(10)), ((System.Byte)(36)), ((System.Byte)(106))), System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(255)))));

            this.treeList1.Styles.AddReplace("HideSelectionRow", new DevExpress.Utils.ViewStyle("HideSelectionRow", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", ((DevExpress.Utils.StyleOptions)((((((DevExpress.Utils.StyleOptions.StyleEnabled | DevExpress.Utils.StyleOptions.UseBackColor) 

                | DevExpress.Utils.StyleOptions.UseDrawFocusRect) 

                | DevExpress.Utils.StyleOptions.UseFont) 

                | DevExpress.Utils.StyleOptions.UseForeColor) 

                | DevExpress.Utils.StyleOptions.UseImage))), true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(128)), ((System.Byte)(128)), ((System.Byte)(128))), System.Drawing.Color.FromArgb(((System.Byte)(212)), ((System.Byte)(208)), ((System.Byte)(200)))));

            this.treeList1.Styles.AddReplace("GroupFooter", new DevExpress.Utils.ViewStyle("GroupFooter", "TreeList", new System.Drawing.Font("Tahoma", 8F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Far, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(222)), ((System.Byte)(218)), ((System.Byte)(210))), System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(0)))));

            this.treeList1.Styles.AddReplace("HorzLine", new DevExpress.Utils.ViewStyle("HorzLine", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(212)), ((System.Byte)(208)), ((System.Byte)(200))), System.Drawing.Color.FromArgb(((System.Byte)(128)), ((System.Byte)(128)), ((System.Byte)(128)))));

            this.treeList1.Styles.AddReplace("HeaderPanel", new DevExpress.Utils.ViewStyle("HeaderPanel", "TreeList", new System.Drawing.Font("Tahoma", 10F, System.Drawing.FontStyle.Bold), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Near, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(212)), ((System.Byte)(208)), ((System.Byte)(200))), System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(0)))));

            this.treeList1.Styles.AddReplace("Empty", new DevExpress.Utils.ViewStyle("Empty", "TreeList", new System.Drawing.Font("Microsoft Sans Serif", 8F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(232)), ((System.Byte)(228)), ((System.Byte)(220))), System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(255)))));

            this.treeList1.Styles.AddReplace("VertLine", new DevExpress.Utils.ViewStyle("VertLine", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Near, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(212)), ((System.Byte)(208)), ((System.Byte)(200))), System.Drawing.Color.FromArgb(((System.Byte)(128)), ((System.Byte)(128)), ((System.Byte)(128)))));

            this.treeList1.Styles.AddReplace("FocusedCell", new DevExpress.Utils.ViewStyle("FocusedCell", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", ((DevExpress.Utils.StyleOptions)((((((DevExpress.Utils.StyleOptions.StyleEnabled | DevExpress.Utils.StyleOptions.UseBackColor) 

                | DevExpress.Utils.StyleOptions.UseDrawFocusRect) 

                | DevExpress.Utils.StyleOptions.UseFont) 

                | DevExpress.Utils.StyleOptions.UseForeColor) 

                | DevExpress.Utils.StyleOptions.UseImage))), true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(225))), System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(0)))));

            this.treeList1.Styles.AddReplace("OddRow", new DevExpress.Utils.ViewStyle("OddRow", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(255))), System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(0)))));

            this.treeList1.Styles.AddReplace("SelectedRow", new DevExpress.Utils.ViewStyle("SelectedRow", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", ((DevExpress.Utils.StyleOptions)((((((DevExpress.Utils.StyleOptions.StyleEnabled | DevExpress.Utils.StyleOptions.UseBackColor) 

                | DevExpress.Utils.StyleOptions.UseDrawFocusRect) 

                | DevExpress.Utils.StyleOptions.UseFont) 

                | DevExpress.Utils.StyleOptions.UseForeColor) 

                | DevExpress.Utils.StyleOptions.UseImage))), true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(20)), ((System.Byte)(46)), ((System.Byte)(116))), System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(255)))));

            this.treeList1.Styles.AddReplace("FocusedRow", new DevExpress.Utils.ViewStyle("FocusedRow", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", ((DevExpress.Utils.StyleOptions)((((((DevExpress.Utils.StyleOptions.StyleEnabled | DevExpress.Utils.StyleOptions.UseBackColor) 

                | DevExpress.Utils.StyleOptions.UseDrawFocusRect) 

                | DevExpress.Utils.StyleOptions.UseFont) 

                | DevExpress.Utils.StyleOptions.UseForeColor) 

                | DevExpress.Utils.StyleOptions.UseImage))), true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(10)), ((System.Byte)(36)), ((System.Byte)(106))), System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(255)))));

            this.treeList1.Styles.AddReplace("Row", new DevExpress.Utils.ViewStyle("Row", "TreeList", new System.Drawing.Font("Tahoma", 10F), "", DevExpress.Utils.StyleOptions.StyleEnabled, true, false, false, DevExpress.Utils.HorzAlignment.Default, DevExpress.Utils.VertAlignment.Center, null, System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(255))), System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(0)))));

            this.treeList1.TabIndex = 23;

            this.treeList1.Text = "类型维护";

            this.treeList1.FocusedNodeChanged += new DevExpress.XtraTreeList.FocusedNodeChangedEventHandler(this.treeList1_FocusedNodeChanged);

            this.treeList1.AfterFocusNode += new DevExpress.XtraTreeList.NodeEventHandler(this.treeList1_AfterFocusNode);

            // 

            // treeListColumn1

            // 

            this.treeListColumn1.Caption = "类型维护----绿城铝业";

            this.treeListColumn1.ColumnEdit = this.repositoryItemTextEdit1;

            this.treeListColumn1.FieldName = "类型维护----绿城铝业";

            this.treeListColumn1.Name = "treeListColumn1";

            this.treeListColumn1.VisibleIndex = 0;

            // 

            // repositoryItemTextEdit1

            // 

            this.repositoryItemTextEdit1.AutoHeight = false;

            this.repositoryItemTextEdit1.Name = "repositoryItemTextEdit1";

            // 

            // simpleButton1

            // 

            this.simpleButton1.ButtonStyle = DevExpress.XtraEditors.Controls.BorderStyles.Office2003;

            this.simpleButton1.Location = new System.Drawing.Point(40, 24);

            this.simpleButton1.Name = "simpleButton1";

            this.simpleButton1.TabIndex = 27;

            this.simpleButton1.Text = " 新增根";

            this.simpleButton1.Click += new System.EventHandler(this.simpleButton1_Click);

            // 

            // simpleButton2

            // 

            this.simpleButton2.ButtonStyle = DevExpress.XtraEditors.Controls.BorderStyles.Office2003;

            this.simpleButton2.Location = new System.Drawing.Point(40, 128);

            this.simpleButton2.Name = "simpleButton2";

            this.simpleButton2.TabIndex = 28;

            this.simpleButton2.Text = "删除节点";

            this.simpleButton2.Click += new System.EventHandler(this.simpleButton2_Click);

            // 

            // simpleButton3

            // 

            this.simpleButton3.ButtonStyle = DevExpress.XtraEditors.Controls.BorderStyles.Office2003;

            this.simpleButton3.Location = new System.Drawing.Point(40, 80);

            this.simpleButton3.Name = "simpleButton3";

            this.simpleButton3.TabIndex = 30;

            this.simpleButton3.Text = " 新增子极";

            this.simpleButton3.Click += new System.EventHandler(this.simpleButton3_Click);

            // 

            // label1

            // 

            this.label1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));

            this.label1.Location = new System.Drawing.Point(8, 256);

            this.label1.Name = "label1";

            this.label1.Size = new System.Drawing.Size(80, 16);

            this.label1.TabIndex = 31;

            this.label1.Text = "新增节点名称";

            // 

            // treeListColumn2

            // 

            this.treeListColumn2.Caption = "对应编码";

            this.treeListColumn2.ColumnEdit = this.repositoryItemTextEdit2;

            this.treeListColumn2.FieldName = "treeListColumn2";

            this.treeListColumn2.Name = "treeListColumn2";

            this.treeListColumn2.VisibleIndex = 1;

            // 

            // repositoryItemTextEdit2

            // 

            this.repositoryItemTextEdit2.AutoHeight = false;

            this.repositoryItemTextEdit2.Name = "repositoryItemTextEdit2";

            // 

            // label2

            // 

            this.label2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));

            this.label2.Location = new System.Drawing.Point(8, 288);

            this.label2.Name = "label2";

            this.label2.Size = new System.Drawing.Size(80, 16);

            this.label2.TabIndex = 33;

            this.label2.Text = "节点对应代码";

            // 

            // textEdit2

            // 

            this.textEdit2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));

            this.textEdit2.EditValue = "05";

            this.textEdit2.Location = new System.Drawing.Point(88, 280);

            this.textEdit2.Name = "textEdit2";

            this.textEdit2.Size = new System.Drawing.Size(128, 21);

            this.textEdit2.TabIndex = 32;

            // 

            // typemanage

            // 

            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

            this.ClientSize = new System.Drawing.Size(496, 333);

            this.Controls.Add(this.label2);

            this.Controls.Add(this.textEdit2);

            this.Controls.Add(this.label1);

            this.Controls.Add(this.simpleButton3);

            this.Controls.Add(this.simpleButton2);

            this.Controls.Add(this.simpleButton1);

            this.Controls.Add(this.treeList1);

            this.Controls.Add(this.textEdit1);

            this.Name = "typemanage";

            this.Text = "类型管理";

            ((System.ComponentModel.ISupportInitialize)(this.textEdit1.Properties)).EndInit();

            ((System.ComponentModel.ISupportInitialize)(this.treeList1)).EndInit();

            ((System.ComponentModel.ISupportInitialize)(this.repositoryItemTextEdit1)).EndInit();

            ((System.ComponentModel.ISupportInitialize)(this.repositoryItemTextEdit2)).EndInit();

            ((System.ComponentModel.ISupportInitialize)(this.textEdit2.Properties)).EndInit();

            this.ResumeLayout(false);

        }

        #endregion

        private void simpleButton1_Click(object sender, System.EventArgs e)

         {

            if(textEdit1.Text.Trim()==""||textEdit2.Text.Trim()=="")

             {

                MessageBox.Show("请输入对应名称及编码!","错误",MessageBoxButtons.OK,MessageBoxIcon.Warning);

                return;

            }

            this.treeList1.AppendNode(new object[]  {this.textEdit1.Text,textEdit2.Text},-1);

        //            newnode.

        //            this.treeList1.Nodes[0].Nodes.Add(newnode);

       }

        private void treeList1_FocusedNodeChanged(object sender, DevExpress.XtraTreeList.FocusedNodeChangedEventArgs e)

         {

            MessageBox.Show(e.Node.Level.ToString());

            MessageBox.Show(e.Node.Id.ToString());

            MessageBox.Show(e.Node.GetDisplayText(0));

        }

        private void treeList1_AfterFocusNode(object sender, DevExpress.XtraTreeList.NodeEventArgs e)

         {

            nodeid=e.Node.Id;

            deletenode=e.Node;

        }

        private void simpleButton3_Click(object sender, System.EventArgs e)

         {

            if(textEdit1.Text.Trim()==""||textEdit2.Text.Trim()=="")

             {

                MessageBox.Show("请输入对应名称及编码!","错误",MessageBoxButtons.OK,MessageBoxIcon.Warning);

                return;

            }

            this.treeList1.AppendNode(new object[]  {this.textEdit1.Text,textEdit2.Text},nodeid);

        }

        private void simpleButton2_Click(object sender, System.EventArgs e)

         {

//            MessageBox.Show(nodeid.ToString());

            this.treeList1.DeleteNode(deletenode);

        }

    }

}