[Serializable]

    public class TreeNodeModel

    {

        private Image _nodePic;

        /// <summary>

        /// 设置图标

        /// </summary>

        public Image NodelPic

        {

            get { return _nodePic; }

            set { _nodePic = value; }

        }

        /// <summary>

        /// 设置名称

        /// </summary>

        public string NodeText { get; set; }

        private List<TreeNodeModel> _nodes = new List<TreeNodeModel>();

        /// <summary>

        /// 子节点

        /// </summary>

        public List<TreeNodeModel> Nodes

        {

            get { return _nodes; }

            set { _nodes = value; }

        }

        /// <summary>

        /// 数据源

        /// </summary>

        public object DataSource { get; set; }

        private Color m_NodeBackgroundColor = Color.Empty;

        /// <summary>

        /// 背景颜色(默认白色)

        /// </summary>

        public Color NodeBackgroundColor

        {

            get { return m_NodeBackgroundColor; }

            set { m_NodeBackgroundColor = value; }

        }

        private bool m_canExpand = true;

        /// <summary>

        /// 是否可展开

        /// </summary>

        public bool CanExpand

        {

            get { return m_canExpand; }

            set

            {

                m_canExpand = value;

            }

        }

        private int? _nodeHeight = null;

        /// <summary>

        /// 节点高度

        /// </summary>

        public int? NodeHeight

        {

            get { return _nodeHeight; }

            set { _nodeHeight = value; }

        }

        private bool _isEventClick = true;

        /// <summary>

        /// 是否触发点击事件

        /// </summary>

        public bool IsEventClick

        {

            get { return _isEventClick; }

            set { _isEventClick = value; }

        }

        private Color nodeForeColor=Color.Empty;

        /// <summary>

        /// 字体颜色

        /// </summary>

        public Color NodeForeColor

        {

            get { return nodeForeColor; }

            set { nodeForeColor = value; }

        }

    }

 partial class UCTreeViewNode

    {

        /// <summary>

        /// 必需的设计器变量。

        /// </summary>

        private System.ComponentModel.IContainer components = null;

        /// <summary>

        /// 清理所有正在使用的资源。

        /// </summary>

        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>

        protected override void Dispose(bool disposing)

        {

            if (disposing && (components != null))

            {

                components.Dispose();

            }

            base.Dispose(disposing);

        }

        #region 组件设计器生成的代码

        /// <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.lblName = new Km.Controls.Static.LabelEx();

            this.lblUpDownPic = new Km.Controls.Static.LabelEx();

            this.panNodePic = new Km.Controls.ExPanel.PanelEx();

            this.panPic = new Km.Controls.ExPanel.PanelEx();

            this.panPadding = new Km.Controls.ExPanel.PanelEx();

            this.panNodePic.SuspendLayout();

            this.SuspendLayout();

            //

            // lblName

            //

            this.lblName.BackColor = System.Drawing.Color.Transparent;

            this.lblName.Dock = System.Windows.Forms.DockStyle.Fill;

            this.lblName.Font = new System.Drawing.Font("微软雅黑", 16F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)()));

            this.lblName.ForeColor = System.Drawing.Color.Silver;

            this.lblName.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft;

            this.lblName.Location = new System.Drawing.Point(, );

            this.lblName.Name = "lblName";

            this.lblName.Size = new System.Drawing.Size(, );

            this.lblName.TabIndex = ;

            this.lblName.Text = "系统设置";

            this.lblName.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;

            //

            // lblUpDownPic

            //

            this.lblUpDownPic.Anchor = System.Windows.Forms.AnchorStyles.Right;

            this.lblUpDownPic.BackColor = System.Drawing.Color.Transparent;

            this.lblUpDownPic.Image = global::Km.Controls.Properties.Resources.下翻;

            this.lblUpDownPic.Location = new System.Drawing.Point(, );

            this.lblUpDownPic.Name = "lblUpDownPic";

            this.lblUpDownPic.Size = new System.Drawing.Size(, );

            this.lblUpDownPic.TabIndex = ;

            //

            // panNodePic

            //

            this.panNodePic.BackColor = System.Drawing.Color.Transparent;

            this.panNodePic.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Center;

            this.panNodePic.BottomborderStyleColor = System.Drawing.Color.Empty;

            this.panNodePic.BottomborderStyleSize = ;

            this.panNodePic.BottomborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            this.panNodePic.ContainerPanel = null;

            this.panNodePic.Controls.Add(this.panPic);

            this.panNodePic.Dock = System.Windows.Forms.DockStyle.Left;

            this.panNodePic.IsSelected = false;

            this.panNodePic.LeftborderStyleColor = System.Drawing.Color.Empty;

            this.panNodePic.LeftborderStyleSize = ;

            this.panNodePic.LeftborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            this.panNodePic.Location = new System.Drawing.Point(, );

            this.panNodePic.Name = "panNodePic";

            this.panNodePic.Radius = ;

            this.panNodePic.Redraw = false;

            this.panNodePic.RightborderStyleColor = System.Drawing.Color.Empty;

            this.panNodePic.RightborderStyleSize = ;

            this.panNodePic.RightborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            this.panNodePic.Size = new System.Drawing.Size(, );

            this.panNodePic.TabIndex = ;

            this.panNodePic.TopborderStyleColor = System.Drawing.Color.Empty;

            this.panNodePic.TopborderStyleSize = ;

            this.panNodePic.TopborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            //

            // panPic

            //

            this.panPic.BackgroundImage = global::Km.Controls.Properties.Resources.table_cell_bg1;

            this.panPic.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Zoom;

            this.panPic.BottomborderStyleColor = System.Drawing.Color.Empty;

            this.panPic.BottomborderStyleSize = ;

            this.panPic.BottomborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            this.panPic.ContainerPanel = null;

            this.panPic.IsSelected = false;

            this.panPic.LeftborderStyleColor = System.Drawing.Color.Empty;

            this.panPic.LeftborderStyleSize = ;

            this.panPic.LeftborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            this.panPic.Location = new System.Drawing.Point(, );

            this.panPic.Name = "panPic";

            this.panPic.Radius = ;

            this.panPic.Redraw = false;

            this.panPic.RightborderStyleColor = System.Drawing.Color.Empty;

            this.panPic.RightborderStyleSize = ;

            this.panPic.RightborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            this.panPic.Size = new System.Drawing.Size(, );

            this.panPic.TabIndex = ;

            this.panPic.TopborderStyleColor = System.Drawing.Color.Empty;

            this.panPic.TopborderStyleSize = ;

            this.panPic.TopborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            //

            // panPadding

            //

            this.panPadding.BackColor = System.Drawing.Color.Transparent;

            this.panPadding.BottomborderStyleColor = System.Drawing.Color.Empty;

            this.panPadding.BottomborderStyleSize = ;

            this.panPadding.BottomborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            this.panPadding.ContainerPanel = null;

            this.panPadding.Dock = System.Windows.Forms.DockStyle.Left;

            this.panPadding.IsSelected = false;

            this.panPadding.LeftborderStyleColor = System.Drawing.Color.Empty;

            this.panPadding.LeftborderStyleSize = ;

            this.panPadding.LeftborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            this.panPadding.Location = new System.Drawing.Point(, );

            this.panPadding.Name = "panPadding";

            this.panPadding.Radius = ;

            this.panPadding.Redraw = false;

            this.panPadding.RightborderStyleColor = System.Drawing.Color.Empty;

            this.panPadding.RightborderStyleSize = ;

            this.panPadding.RightborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            this.panPadding.Size = new System.Drawing.Size(, );

            this.panPadding.TabIndex = ;

            this.panPadding.TopborderStyleColor = System.Drawing.Color.Empty;

            this.panPadding.TopborderStyleSize = ;

            this.panPadding.TopborderStyleType = System.Windows.Forms.ButtonBorderStyle.None;

            //

            // UCTreeViewNode

            //

            this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 20F);

            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

            this.BackColor = System.Drawing.Color.Transparent;

            this.BottomborderStyleColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));

            this.BottomborderStyleSize = ;

            this.BottomborderStyleType = System.Windows.Forms.ButtonBorderStyle.Solid;

            this.Controls.Add(this.lblUpDownPic);

            this.Controls.Add(this.lblName);

            this.Controls.Add(this.panNodePic);

            this.Controls.Add(this.panPadding);

            this.Name = "UCTreeViewNode";

            this.RectColor = System.Drawing.Color.Red;

            this.Redraw = true;

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

            this.panNodePic.ResumeLayout(false);

            this.ResumeLayout(false);

        }

        #endregion

        private Static.LabelEx lblName;

        private Static.LabelEx lblUpDownPic;

        private ExPanel.PanelEx panNodePic;

        private ExPanel.PanelEx panPic;

        private ExPanel.PanelEx panPadding;

    }

 public partial class UCTreeViewNode : UCBase

    {

        #region 属性

        private int _nodeHeight = ;

        /// <summary>

        /// 节点高度

        /// </summary>

        public int NodeHeight

        {

            get { return _nodeHeight; }

            set { _nodeHeight = value; }

        }

        private bool _isBrotherSingleExpanded = true;

        /// <summary>

        /// 兄弟节点是否仅有一个为展开状态

        /// </summary>

        public bool IsBrotherSingleExpanded

        {

            get { return _isBrotherSingleExpanded; }

            set { _isBrotherSingleExpanded = value; }

        }

        private Image _downPic = Properties.Resources.下翻;

        /// <summary>

        /// 下翻图标

        /// </summary>

        public Image DownPic

        {

            get { return _downPic; }

            set

            {

                _downPic = value;

                lblUpDownPic.Image = value;

            }

        }

        private Image _upPic = Properties.Resources.上翻;

        /// <summary>

        /// 上翻图标

        /// </summary>

        public Image UpPic

        {

            get { return _upPic; }

            set { _upPic = value; }

        }

        private Color m_NodeBackgroundColor = Color.White;

        /// <summary>

        /// 背景颜色

        /// </summary>

        public Color NodeBackgroundColor

        {

            get { return m_NodeBackgroundColor; }

            set

            {

                m_NodeBackgroundColor = value;

                this.BackColor = value;

            }

        }

        private bool m_isExpanded = false;

        /// <summary>

        /// 是否已展开

        /// </summary>

        public bool IsExpanded

        {

            get { return m_isExpanded; }

            private set { m_isExpanded = value; }

        }

        private bool m_canExpand = false;

        /// <summary>

        /// 是否可展开

        /// </summary>

        public bool CanExpand

        {

            get { return m_canExpand; }

            set

            {

                m_canExpand = value;

                lblUpDownPic.Visible = value;

            }

        }

        private TreeNodeModel m_source;

        /// <summary>

        /// 数据源

        /// </summary>

        public TreeNodeModel Source

        {

            get { return m_source; }

            set

            {

                m_source = value;

                NodelPic = value.NodelPic;

                NodeText = value.NodeText;

                if (value.NodeBackgroundColor != Color.Empty)

                    NodeBackgroundColor = value.NodeBackgroundColor;

                CanExpand = value.CanExpand;

                if (value.Nodes.Count > )

                {

                    lblUpDownPic.Visible = true;

                }

                else

                {

                    lblUpDownPic.Visible = false;

                }

            }

        }

        private string m_nodeText;

        /// <summary>

        /// 标题文字

        /// </summary>

        public string NodeText

        {

            get { return m_nodeText; }

            set

            {

                m_nodeText = value;

                lblName.Text = value;

            }

        }

        private int m_nodeLeftPadding = ;

        /// <summary>

        ///

        /// </summary>

        public int NodeLeftPadding

        {

            get { return m_nodeLeftPadding; }

            set

            {

                m_nodeLeftPadding = value;

                panPadding.Width = value;

            }

        }

        private Image _nodePic;

        /// <summary>

        /// 设置图标

        /// </summary>

        public Image NodelPic

        {

            get { return _nodePic; }

            set

            {

                _nodePic = value;

                panPic.BackgroundImage = value;

            }

        }

        private List<UCTreeViewNode> m_nodes = new List<UCTreeViewNode>();

        /// <summary>

        /// 子节点

        /// </summary>

        public List<UCTreeViewNode> Nodes

        {

            get { return m_nodes; }

            set { m_nodes = value; }

        }

        private UCTreeViewNode m_parentNode;

        /// <summary>

        /// 父节点

        /// </summary>

        public UCTreeViewNode ParentNode

        {

            get { return m_parentNode; }

            set { m_parentNode = value; }

        }

        private Color _nodeForeColor = Color.Silver;

        /// <summary>

        /// 字体颜色

        /// </summary>

        public Color NodeForeColor

        {

            get { return _nodeForeColor; }

            set

            {

                _nodeForeColor = value;

                lblName.ForeColor = value;

            }

        }

        private bool _isShowSplitLine = false;

        /// <summary>

        /// 是否显示分割线

        /// </summary>

        public bool IsShowSplitLine

        {

            get { return _isShowSplitLine; }

            set

            {

                _isShowSplitLine = value;

                base.Redraw = value;

            }

        }

        private Color _splitLineColor= Color.FromArgb(, , );

        /// <summary>

        /// 分割线颜色

        /// </summary>

        public Color SplitLineColor

        {

            get { return _splitLineColor; }

            set

            {

                _splitLineColor = value;

                base.BottomborderStyleColor = value;

            }

        }

        /// <summary>

        /// 点击节点事件

        /// </summary>

        public event EventHandler NodeMouseDown;

        #endregion

        public UCTreeViewNode()

        {

            InitializeComponent();

            lblName.MouseDown += Node_MouseDown;

            lblUpDownPic.MouseDown += Node_MouseDown;

        }

        void Node_MouseDown(object sender, MouseEventArgs e)

        {

            if (NodeMouseDown != null && Source.IsEventClick)

            {

                NodeMouseDown(this, e);

            }

            Expanded(!IsExpanded);

        }

        /// <summary>

        /// 功能描述:展开节点

        /// 作　　者:

        /// 创建日期:2018-06-26 17:53:45

        /// 任务编号:

        /// </summary>

        public void Expanded(bool blnExpanded = true)

        {

            if (CanExpand)

            {

                if (Nodes.Count > )

                {

                    foreach (var item in Nodes)

                    {

                        // item.Visible = blnExpanded;

                        if (blnExpanded)

                        {

                            item.Height = _nodeHeight;

                        }

                        else

                        {

                            item.Height = ;

                            item.ExpandedAll(false);

                        }

                    }

                    IsExpanded = blnExpanded;

                    if (blnExpanded)

                    {

                        lblUpDownPic.Image = UpPic;

                        if (_isBrotherSingleExpanded)

                        {

                            //兄弟节点仅展开一个时，关闭其他节点

                            foreach (var item in ParentNode.Nodes)

                            {

                                if (item == this)

                                    continue;

                                item.ExpandedAll(false);

                            }

                        }

                    }

                    else

                    {

                        lblUpDownPic.Image = DownPic;

                    }

                }

            }

        }

        /// <summary>

        /// 功能描述:展开所有子节点

        /// 作　　者:

        /// 创建日期:2018-06-26 17:53:45

        /// 任务编号:

        /// </summary>

        public void ExpandedAll(bool blnExpanded = true)

        {

            if (CanExpand && (!_isBrotherSingleExpanded || !blnExpanded))

            {

                foreach (var item in Nodes)

                {

                    //item.Visible = blnExpanded;

                    if (blnExpanded)

                    {

                        item.Height = _nodeHeight;

                    }

                    else

                    {

                        item.Height = ;

                    }

                    item.ExpandedAll(blnExpanded);

                }

                if (Nodes.Count > )

                {

                    IsExpanded = blnExpanded;

                    if (blnExpanded)

                    {

                        lblUpDownPic.Image = UpPic;

                    }

                    else

                    {

                        lblUpDownPic.Image = DownPic;

                    }

                }

            }

        }

    }

 protected override void OnPaint(PaintEventArgs e)

        {

            if (_redraw && !_isShowRect)

            {

                e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;

                ControlPaint.DrawBorder(e.Graphics,

                                  this.ClientRectangle,

                                 _leftborderStyleColor,//7f9db9

                                  _leftborderStyleSize,

                                   _leftborderStyleType,

                                  _topborderStyleColor,//7f9db9

                                   _topborderStyleSize,

                                   _topborderStyleType,

                                 _rightborderStyleColor,//7f9db9

                                  _rightborderStyleSize,

                                  _rightborderStyleType,

                                 _bottomborderStyleColor,//7f9db9

                                  _bottomborderStyleSize,

                                   _bottomborderStyleType);

            }

            base.OnPaint(e);

        }

 partial class UCTreeView

    {

        /// <summary>

        /// 必需的设计器变量。

        /// </summary>

        private System.ComponentModel.IContainer components = null;

        /// <summary>

        /// 清理所有正在使用的资源。

        /// </summary>

        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>

        protected override void Dispose(bool disposing)

        {

            if (disposing && (components != null))

            {

                components.Dispose();

            }

            base.Dispose(disposing);

        }

        #region 组件设计器生成的代码

        /// <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.panSources = new System.Windows.Forms.FlowLayoutPanel();

            this.SuspendLayout();

            //

            // panSources

            //

            this.panSources.BackColor = System.Drawing.Color.Transparent;

            this.panSources.Dock = System.Windows.Forms.DockStyle.Fill;

            this.panSources.Location = new System.Drawing.Point(, );

            this.panSources.Name = "panSources";

            this.panSources.Size = new System.Drawing.Size(, );

            this.panSources.TabIndex = ;

            //

            // UCTreeView

            //

            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;

            this.BackColor = System.Drawing.Color.White;

            this.Controls.Add(this.panSources);

            this.Name = "UCTreeView";

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

            this.Resize += new System.EventHandler(this.UCTreeView_Resize);

            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.FlowLayoutPanel panSources;

    }

 public partial class UCTreeView : UserControl

    {

        #region 属性

        private bool _isBrotherSingleExpanded = true;

        /// <summary>

        /// 兄弟节点是否仅有一个为展开状态

        /// </summary>

        [Description("兄弟节点是否仅有一个为展开状态"), Category("自定义属性")]

        public bool IsBrotherSingleExpanded

        {

            get { return _isBrotherSingleExpanded; }

            set { _isBrotherSingleExpanded = value; }

        }

        private List<TreeNodeModel> _dataSource;

        /// <summary>

        /// 数据源

        /// </summary>

        public List<TreeNodeModel> DataSource

        {

            get { return _dataSource; }

            set

            {

                _dataSource = value;

                RefreshTree();

            }

        }

        private Image _nodeDownPic = Properties.Resources.下翻;

        /// <summary>

        /// 下翻图标

        /// </summary>

        [Description("下翻图标"), Category("自定义属性")]

        public Image NodeDownPic

        {

            get { return _nodeDownPic; }

            set { _nodeDownPic = value; }

        }

        private Image _nodeUpPic = Properties.Resources.上翻;

        /// <summary>

        /// 上翻图标

        /// </summary>

        [Description("上翻图标"), Category("自定义属性")]

        public Image NodeUpPic

        {

            get { return _nodeUpPic; }

            set { _nodeUpPic = value; }

        }

        private Color _nodeBackgroundColor = Color.White;

        /// <summary>

        /// 节点背景颜色(如果数据源中设置了指定节点背景颜色，则优先使用数据源中的背景颜色)

        /// </summary>

        [Description("节点背景颜色(如果数据源中设置了指定节点背景颜色，则优先使用数据源中的背景颜色)"), Category("自定义属性")]

        public Color NodeBackgroundColor

        {

            get { return _nodeBackgroundColor; }

            set { _nodeBackgroundColor = value; }

        }

        private int _nodeHeight = ;

        /// <summary>

        /// 节点高度(如果数据源中设置了指定节点高度，则优先使用数据源中的高度)

        /// </summary>

        [Description("节点高度(如果数据源中设置了指定节点高度，则优先使用数据源中的高度)"), Category("自定义属性")]

        public int NodeHeight

        {

            get { return _nodeHeight; }

            set { _nodeHeight = value; }

        }

        private int _nodeLeftPadding = ;

        /// <summary>

        /// 子节点与父节点间偏移距离

        /// </summary>

        [Description("子节点与父节点间偏移距离"), Category("自定义属性")]

        public int NodeLeftPadding

        {

            get { return _nodeLeftPadding; }

            set { _nodeLeftPadding = value; }

        }

        private Color _nodeForeColor = Color.Silver;

        /// <summary>

        /// 子节点字体颜色(如果数据源中设置了指定节点字体颜色，则优先使用数据源中的字体颜色)

        /// </summary>

        [Description("子节点字体颜色(如果数据源中设置了指定节点字体颜色，则优先使用数据源中的字体颜色)"), Category("自定义属性")]

        public Color NodeForeColor

        {

            get { return _nodeForeColor; }

            set { _nodeForeColor = value; }

        }

        private bool _nodeIsShowSplitLine = false;

        /// <summary>

        /// 是否显示分割线

        /// </summary>

        [Description("节点是否显示分割线"), Category("自定义属性")]

        public bool NodeIsShowSplitLine

        {

            get { return _nodeIsShowSplitLine; }

            set

            {

                _nodeIsShowSplitLine = value;

            }

        }

        private Color _nodeSplitLineColor = Color.FromArgb(, , );

        /// <summary>

        /// 分割线颜色

        /// </summary>

        [Description("节点分割线颜色"), Category("自定义属性")]

        public Color NodeSplitLineColor

        {

            get { return _nodeSplitLineColor; }

            set

            {

                _nodeSplitLineColor = value;

            }

        }

        #endregion

        /// <summary>

        /// 节点点击事件

        /// </summary>

        [Description("节点点击事件"), Category("自定义")]

        public event EventHandler NodeMouseDown;

        /// <summary>

        /// 功能描述:构造函数

        /// 作　　者:

        /// 创建日期:2018-06-26 16:58:51

        /// 任务编号:

        /// </summary>

        public UCTreeView()

        {

            InitializeComponent();

        }

        /// <summary>

        /// 功能描述:刷新列表

        /// 作　　者:

        /// 创建日期:2018-06-26 16:58:39

        /// 任务编号:

        /// </summary>

        public void RefreshTree()

        {

            this.panSources.Controls.Clear();

            if (_dataSource == null || _dataSource.Count <= )

            {

                return;

            }

            int intTabIndex = ;

            UCTreeViewNode nodeBase = new UCTreeViewNode();

            nodeBase.Tag = ;

            LoadNode(nodeBase, _dataSource, ref intTabIndex, true);

        }

        /// <summary>

        /// 功能描述:加载节点

        /// 作　　者:

        /// 创建日期:2018-06-27 09:37:45

        /// 任务编号:

        /// </summary>

        /// <param name="parentNode">parentNode</param>

        /// <param name="lstNodes">lstNodes</param>

        /// <param name="intTabIndex">intTabIndex</param>

        /// <param name="blnVisible">blnVisible</param>

        private void LoadNode(

            UCTreeViewNode parentNode,

            List<TreeNodeModel> lstNodes,

            ref int intTabIndex,

            bool blnVisible = false)

        {

            for (int i = ; i < lstNodes.Count; i++)

            {

                var item = lstNodes[i];

                UCTreeViewNode node = new UCTreeViewNode();

                node.IsShowSplitLine = _nodeIsShowSplitLine;

                node.SplitLineColor = _nodeSplitLineColor;

                node.Tag = parentNode.Tag.ToIntExt() + ;

                node.ParentNode = parentNode;

                node.UpPic = _nodeUpPic;

                node.DownPic = _nodeDownPic;

                node.Margin = new System.Windows.Forms.Padding();

                node.NodeLeftPadding = _nodeLeftPadding * parentNode.Tag.ToIntExt();

                node.NodeMouseDown += node_NodeMouseDown;

                node.Anchor = AnchorStyles.Left | AnchorStyles.Right;

                node.Size = new System.Drawing.Size(this.Width, blnVisible ? (item.NodeHeight.HasValue ? item.NodeHeight.Value : _nodeHeight) : );

                node.NodeBackgroundColor = _nodeBackgroundColor;

                node.NodeForeColor = item.NodeForeColor == Color.Empty ? _nodeForeColor : item.NodeForeColor;

                node.TabIndex = ++intTabIndex;

                node.IsBrotherSingleExpanded = _isBrotherSingleExpanded;

                node.NodeHeight = (item.NodeHeight.HasValue ? item.NodeHeight.Value : _nodeHeight);

                parentNode.Nodes.Add(node);

                this.panSources.Controls.Add(node);

                Console.WriteLine(item.NodeText);

                if (item.Nodes != null && item.Nodes.Count > )

                {

                    LoadNode(node, item.Nodes, ref intTabIndex, false);

                }

                node.Source = item;

            }

        }

        /// <summary>

        /// 功能描述:节点点击事件

        /// 作　　者:

        /// 创建日期:2018-06-27 09:31:44

        /// 任务编号:

        /// </summary>

        /// <param name="sender">sender</param>

        /// <param name="e">e</param>

        void node_NodeMouseDown(object sender, EventArgs e)

        {

            if (NodeMouseDown != null)

            {

                NodeMouseDown(sender, e);

            }

        }

        /// <summary>

        /// 改变大小时改变子项宽度，防止流控件横向显示多个

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void UCTreeView_Resize(object sender, EventArgs e)

        {

            this.SuspendLayout();

            for (int i = this.panSources.Controls.Count-; i >=; i--)

            {

                   this.panSources.Controls[i].Width = this.Width;

            }

            this.ResumeLayout(false);

        }

    }

 private void TestTreeView_Load(object sender, EventArgs e)

        {

            List<TreeNodeModel> lst = new List<TreeNodeModel>();

            for (int i = ; i < ; i++)

            {

                TreeNodeModel node = new TreeNodeModel()

                {

                    CanExpand = true,

                    DataSource = i,

                    NodeBackgroundColor = Color.FromArgb(, , ),

                    NodeText = string.Format("节点{0}", i),

                    NodelPic = Properties.Resources.Exit

                };

                for (int j = ; j < ; j++)

                {

                    TreeNodeModel node2 = new TreeNodeModel()

                    {

                        CanExpand = true,

                        DataSource = j,

                        NodeForeColor = Color.Black,

                        NodelPic = Properties.Resources.add,

                        NodeText = string.Format("节点{0}-{1}", i, j)

                    };

                    for (int k = ; k < ; k++)

                    {

                        TreeNodeModel node3 = new TreeNodeModel()

                        {

                            CanExpand = true,

                            DataSource = k,

                            NodeForeColor = Color.Black,

                            NodeText = string.Format("节点{0}-{1}-{2}", i, j, k)

                        };

                        node2.Nodes.Add(node3);

                    }

                    node.Nodes.Add(node2);

                }

                lst.Add(node);

            }

            this.ucTreeView1.DataSource = lst;

        }

        private void ucTreeView1_NodeMouseDown(object sender, EventArgs e)

        {

            UCTreeViewNode node = sender as UCTreeViewNode;

            TreeNodeModel model = node.Source;

        }