带有CheckBox的TreeList

Design代码

partialclassForm1

   {

       ///<summary>

       ///必需的设计器变量。

       ///</summary>

       privateSystem.ComponentModel.IContainercomponents = null;

 

       ///<summary>

       ///清理所有正在使用的资源。

       ///</summary>

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

       protectedoverridevoidDispose(bool disposing)

       {

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

           {

               components.Dispose();

           }

           base.Dispose(disposing);

       }

 

       #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>

       privatevoidInitializeComponent()

       {

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

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

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

           this.treeListColumn3=new DevExpress.XtraTreeList.Columns.TreeListColumn();

           this.treeListColumn4=new DevExpress.XtraTreeList.Columns.TreeListColumn();

           this.button1=new System.Windows.Forms.Button();

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

           this.SuspendLayout();

           //

           //treeList1

           //

           this.treeList1.Columns.AddRange(newDevExpress.XtraTreeList.Columns.TreeListColumn[]{

           this.treeListColumn1,

           this.treeListColumn2,

           this.treeListColumn3,

           this.treeListColumn4});

           this.treeList1.Location=new System.Drawing.Point(2, 2);

           this.treeList1.Name="treeList1";

           this.treeList1.OptionsBehavior.Editable=false;

           this.treeList1.OptionsMenu.EnableColumnMenu=false;

           this.treeList1.OptionsView.ShowCheckBoxes=true;

           this.treeList1.OptionsView.ShowIndicator=false;

           this.treeList1.Size=new System.Drawing.Size(301, 377);

           this.treeList1.TabIndex= 0;

           this.treeList1.AfterCheckNode+=new DevExpress.XtraTreeList.NodeEventHandler(this.treeList1_AfterCheckNode);

           //

           //treeListColumn1

           //

           this.treeListColumn1.Caption="权限列表";

           this.treeListColumn1.FieldName="treeListColumn1";

           this.treeListColumn1.MinWidth= 32;

           this.treeListColumn1.Name="treeListColumn1";

           this.treeListColumn1.Visible=true;

           this.treeListColumn1.VisibleIndex= 0;

           this.treeListColumn1.Width= 91;

           //

           //treeListColumn2

           //

           this.treeListColumn2.Caption="treeListColumn2";

           this.treeListColumn2.FieldName="treeListColumn2";

           this.treeListColumn2.Name="treeListColumn2";

           //

           //treeListColumn3

           //

           this.treeListColumn3.Caption="treeListColumn3";

           this.treeListColumn3.FieldName="treeListColumn3";

           this.treeListColumn3.Name="treeListColumn3";

           //

           //treeListColumn4

           //

           this.treeListColumn4.Caption="treeListColumn4";

           this.treeListColumn4.FieldName="treeListColumn4";

           this.treeListColumn4.Name="treeListColumn4";

           //

           //button1

           //

           this.button1.Location=new System.Drawing.Point(218, 385);

           this.button1.Name="button1";

           this.button1.Size=new System.Drawing.Size(75, 23);

           this.button1.TabIndex= 1;

           this.button1.Text="确定";

           this.button1.UseVisualStyleBackColor=true;

           this.button1.Click+=new System.EventHandler(this.button1_Click);

           //

           //Form1

           //

           this.AutoScaleDimensions=new System.Drawing.SizeF(6F, 12F);

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

           this.ClientSize=new System.Drawing.Size(305, 417);

           this.Controls.Add(this.button1);

           this.Controls.Add(this.treeList1);

           this.Name="Form1";

           this.Text="Form1";

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

           this.ResumeLayout(false);

 

       }

 

       #endregion

 

       privateDevExpress.XtraTreeList.TreeListtreeList1;

       privateDevExpress.XtraTreeList.Columns.TreeListColumntreeListColumn1;

       privateDevExpress.XtraTreeList.Columns.TreeListColumntreeListColumn2;

       privateDevExpress.XtraTreeList.Columns.TreeListColumntreeListColumn3;

       privateDevExpress.XtraTreeList.Columns.TreeListColumntreeListColumn4;

       privateSystem.Windows.Forms.Button button1;

   }

CS代码

publicpartialclassForm1 : Form

   {

       ///<summary>

       ///所有权限

       ///</summary>

       privateList<Privilege>listPrivilege = newList<Privilege>();

 

       ///<summary>

       ///默认的权限

       ///</summary>

       privateList<Privilege>listPrivilegeMoRen = newList<Privilege>();

 

       publicForm1()

       {

           InitializeComponent();

           InitPrivilege();

           InitTreeList();

       }

 

       privatevoidInitPrivilege()

       {

           listPrivilege.Add(newPrivilege { PrivilegeId = 10001, PrivilegeName = "管理", ParentPrivlegeId = 1, MenuLevel = 1 });

           listPrivilege.Add(newPrivilege { PrivilegeId = 10002, PrivilegeName = "系统", ParentPrivlegeId = 2, MenuLevel = 1 });

           listPrivilege.Add(newPrivilege { PrivilegeId = 10003, PrivilegeName = "用户管理", ParentPrivlegeId = 1, MenuLevel = 2 });

           listPrivilege.Add(newPrivilege { PrivilegeId = 10004, PrivilegeName = "修改密码", ParentPrivlegeId = 1, MenuLevel = 2 });

           listPrivilege.Add(newPrivilege { PrivilegeId = 10005, PrivilegeName = "登录", ParentPrivlegeId = 2, MenuLevel = 2 });

           listPrivilege.Add(newPrivilege { PrivilegeId = 10006, PrivilegeName = "文件下载", ParentPrivlegeId = 2, MenuLevel = 2 });

 

           listPrivilegeMoRen.Add(newPrivilege { PrivilegeId = 10001, PrivilegeName = "管理", ParentPrivlegeId = 1, MenuLevel = 1 });

           listPrivilegeMoRen.Add(newPrivilege { PrivilegeId = 10003, PrivilegeName = "用户管理", ParentPrivlegeId = 1, MenuLevel = 2 });

           listPrivilegeMoRen.Add(newPrivilege { PrivilegeId = 10004, PrivilegeName = "修改密码", ParentPrivlegeId = 1, MenuLevel = 2 });

       }

 

       privatevoidInitTreeList()

       {

           List<Privilege>listRoot = listPrivilege.Where(p => p.MenuLevel == 1).ToList();

           //加载所有的根节点

           foreach(Privilege pri inlistRoot)

           {

               this.treeList1.AppendNode(newobject[]{ pri.PrivilegeName, pri.ParentPrivlegeId, pri.PrivilegeId, pri }, -1);

           }

           List<Privilege>listOne = listPrivilege.Where(p => p.MenuLevel == 2).ToList();

 

           //加载一级子节点

           foreach(Privilege pri inlistOne)

           {

               for (inti = 0; i < treeList1.Nodes.Count; i++)

               {

                   int int_parentId = pri.ParentPrivlegeId;

                   if (int_parentId == (int)(treeList1.Nodes[i].GetValue(this.treeListColumn2)))

                   {

                       this.treeList1.AppendNode(newobject[]{ pri.PrivilegeName, pri.ParentPrivlegeId, pri.PrivilegeId, pri },treeList1.Nodes[i].Id);

                   }

               }

           }

           //将所有的树形节点展开

           this.treeList1.ExpandAll();

 

           foreach(TreeListNode t inthis.treeList1.Nodes)

           {

               if(t !=null)

               {

                   SetNodeChecked(t, listPrivilegeMoRen);

               }

           }

       }

 

       privatevoidtreeList1_AfterCheckNode(object sender,DevExpress.XtraTreeList.NodeEventArgs e)

       {

           if(e.Node ==null)

           {return;}

           //选中父节点，其下的所有子节点都被选中

           if(e.Node.CheckState ==CheckState.Checked)

           {

               if (e.Node.HasChildren)

               {

                   CheckNode(e.Node);

               }

               if (e.Node.ParentNode != null)

               {

                   if (e.Node.ParentNode.CheckState != CheckState.Checked)

                   {

                       e.Node.ParentNode.CheckState= CheckState.Checked;

                       SetParentNodeChecked(e.Node.ParentNode);

                   }

               }

           }

           if(e.Node.CheckState ==CheckState.Unchecked)

           {

               if (e.Node.ParentNode != null)

               {

                   //判断一下该父节点下的子节点是否都已经处于非选中状态

                   if(IsAllChildrenUnChecked(e.Node.ParentNode))

                   {

                       e.Node.ParentNode.CheckState =CheckState.Unchecked;

                   }

               }

               //m_role.PrivilegesList.Remove(((Privilege)e.Node.GetValue(this.pri)));

           }

           //取消父节点，其下的所有子节点都是处于非选中状态

           if(e.Node.CheckState ==CheckState.Unchecked)

           {

               if(e.Node.HasChildren)

               {

                   ClearNode(e.Node);

               }

           }

           if(e.Node.CheckState ==CheckState.Checked)

           {

               //m_role.PrivilegesList.Add(((Privilege)e.Node.GetValue(this.pri)));

           }

       }

 

       privateboolIsAllChildrenUnChecked(TreeListNode tnode)

       {

           foreach(TreeListNode cNode intnode.Nodes)

           {

               if (cNode.CheckState != CheckState.Unchecked)

               {

                   returnfalse;

               }

           }

           returntrue;

       }

 

       privatevoidClearNode(TreeListNode node)

       {

           foreach(TreeListNode cNode innode.Nodes)

           {

               if (cNode != null)

               {

                   cNode.CheckState =CheckState.Unchecked;

               }

               if (cNode.HasChildren)

               {

                   ClearNode(cNode);

               }

           }

       }

 

       //如果点击了父节点，则相应的子节点全部被选中

       privatevoidCheckNode(DevExpress.XtraTreeList.Nodes.TreeListNodenode)

       {

           foreach(TreeListNode cNode innode.Nodes)

           {

               if (cNode != null)

               {

                   if (cNode.CheckState == CheckState.Unchecked)

                   {

                       cNode.CheckState = CheckState.Checked;

                       //m_role.PrivilegesList.Add(((Privilege)cNode.GetValue(this.pri)));

                   }

               }

               if (cNode.HasChildren)

               {

                   CheckNode(cNode);

               }

           }

       }

 

       privatevoidSetNodeChecked(TreeListNode node, List<Privilege> listP)

       {

           if(listP !=null)

           {

               if (node != null)

               {

                   for (inti = 0; i < listP.Count; i++)

                   {

                       if(listP[i] !=null && (int)node.GetValue(this.treeListColumn3)== listP[i].PrivilegeId)

                       {

                           node.CheckState = CheckState.Checked;

                           SetParentNodeChecked(node);

                       }

                   }

                   foreach (TreeListNodetnodein node.Nodes)

                   {

                       SetNodeChecked(tnode,listP);

                   }

 

               }

               if (node == null)

                   return;

           }

       }

 

       //如果选中子节点，则相应的父节点都被选中

       privatevoidSetParentNodeChecked(TreeListNode node)

       {

           try

           {

               if (node.ParentNode != null)

               {

                   if (node.ParentNode.CheckState == CheckState.Unchecked)

                   {

                       node.ParentNode.CheckState =CheckState.Checked;

                       //m_role.PrivilegesList.Add(((Privilege)node.GetValue(this.pri)));

                   }

                   SetParentNodeChecked(node.ParentNode);

               }

               if (node.ParentNode == null)

                   return;

           }

           catch(Exception)

           {

           }

       }

 

       classPrivilege

       {

           ///<summary>

           ///权限ID

           ///</summary>

           publicintPrivilegeId { get;set;}

 

           ///<summary>

           ///权限名称

           ///</summary>

           publicstringPrivilegeName { get;set;}

 

           ///<summary>

           ///父节点

           ///</summary>

           publicintParentPrivlegeId { get;set;}

 

           ///<summary>

           ///菜单级别

           ///</summary>

           publicintMenuLevel { get;set;}

       }

 

       privatevoidbutton1_Click(object sender, EventArgse)

       {

           List<int>listRolePrivelege = newList<int>();

           foreach(TreeListNode tnode inthis.treeList1.Nodes)

           {

               GetAllPrivelege(tnode, listRolePrivelege);

           }

       }

 

       //递归树，找出所有的选中权限

       publicvoidGetAllPrivelege(TreeListNode tnode, List<int>listRolePrivelege)

       {

           if(tnode !=null)

           {

               if (tnode.CheckState == CheckState.Checked)

               {

                   listRolePrivelege.Add((int)tnode.GetValue(this.treeListColumn3));

               }

               foreach (TreeListNodenodein tnode.Nodes)

               {

                   GetAllPrivelege(node, listRolePrivelege);

               }

           }

           else

           {

               return;

           }

       }

   }