一个简单的权限分配设计

  效果：

         

数据库表的设计：

                   

  //绑定父节点
        private void loadTreeList()
        {
            string strLoginName = LoginID;
            Right_treeView.Nodes.Clear();
            DataTable dt = foun.GetAllList().Tables[0];
            DataTable dtName = auth.GetList(" User_ID='" + strLoginName+"'").Tables[0];
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                TreeNode node = new TreeNode();
                node.Tag = dt.Rows[i]["Foundation_ID"].ToString();
                node.Text = dt.Rows[i]["Foundation_Name"].ToString();
                Right_treeView.Nodes.Add(node);

                for (int j = 0; j < dtName.Rows.Count; j++)
                {
                    string sTag = node.Tag.ToString();
                    if (sTag == dtName.Rows[j]["User_ID"].ToString())  //查看是否有选择
                    {
                        node.Checked = true;
                    }
                }

                InitTree(Right_treeView.Nodes[i].Nodes, node.Tag.ToString(), strLoginName);
            }
        }
        //绑定子节点
        private void InitTree(TreeNodeCollection Nds, String strFid, String strRose)
        {
            DataTable dt = sysfun.GetList("Foundation_ID=" + strFid).Tables[0];
            DataTable dtName = auth.GetList(" User_ID='" + strRose + "'").Tables[0];

            TreeNode tmpNd;
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                tmpNd = new TreeNode();
                //菜单
                tmpNd.Text = dt.Rows[i]["Sysfunction_Name"].ToString();
                //id
                tmpNd.Tag = dt.Rows[i]["Sysfunction_ID"].ToString();

                Nds.Add(tmpNd);

                for (int j = 0; j < dtName.Rows.Count; j++)
                {
                    string sTag = tmpNd.Tag.ToString();
                    if (sTag == dtName.Rows[j]["Sysfunction_ID"].ToString())
                    {
                        tmpNd.Checked = true;
                    }

                }
            }
        }

        private void Right_treeView_AfterCheck(object sender, TreeViewEventArgs e)
        {
            if (e.Action != TreeViewAction.Unknown)
            {
                CheckAllChildNodes(e.Node, e.Node.Checked);
                //选中父节点 
                bool bol = true;
                if (e.Node.Parent != null)
                {
                    for (int i = 0; i < e.Node.Parent.Nodes.Count; i++)
                    {
                        if (!e.Node.Parent.Nodes[i].Checked)
                            bol = false;
                    }
                    e.Node.Parent.Checked = bol;
                }
            }
        }

        public void CheckAllChildNodes(TreeNode treeNode, bool nodeChecked)
        {
            foreach (TreeNode node in treeNode.Nodes)
            {
                node.Checked = nodeChecked;
                if (node.Nodes.Count > 0)
                {
                    this.CheckAllChildNodes(node, nodeChecked);
                }
            }
        }

        private void Right_treeView_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
        {
            Right_treeView.SelectedNode = e.Node;
            if (e.Node.Bounds.Contains(e.Location))
            {
                if (!e.Node.IsExpanded)
                {
                    e.Node.Expand();
                }
                else
                {
                    e.Node.Collapse();
                }
            }
        }

        private void CheckChild(TreeNode node)
        {
            if (node.Nodes.Count != 0)
            {
                DataTable dt = sysfun.GetList("Foundation_ID=" + node.Tag.ToString()).Tables[0]; ;
                DataTable dtName = auth.GetList(" User_ID=" + LoginID).Tables[0];
         
                if (node.Parent == null)
                {
                    foreach (TreeNode item in node.Nodes)
                    {
                        //问题？？？
                        item.Checked = node.Checked;
                        //CheckChild(item);

                    }
                }
            }
        }
        private void CheckParent(TreeNode node)
        {
            if (node.Parent != null)
            {
                int count = 0;
                foreach (TreeNode item in node.Parent.Nodes)
                {
                    if (item.Checked)
                    {
                        count++;
                    }
                }

                node.Parent.Checked = (count == node.Parent.Nodes.Count);
                CheckParent(node.Parent);
            }
        }

        private void Right_treeView_NodeMouseHover(object sender, TreeNodeMouseHoverEventArgs e)
        {
            Cursor = Cursors.Hand;
        }

        private void Right_treeView_MouseMove(object sender, MouseEventArgs e)
        {
            TreeNode node = Right_treeView.GetNodeAt(e.X, e.Y);
            if (node == null)
            {
                Cursor = Cursors.Default;
            }
        }

        //保存
        private void button1_Click(object sender, EventArgs e)
        {
            List<string> list = new List<string>();
            string str = Right_treeView.SelectedNode.ToString();
            foreach (TreeNode tnode in this.Right_treeView.Nodes)
            {
                if (tnode.Checked)
                {
                    list.Add(tnode.Tag.ToString());
                }
                foreach (TreeNode trnode in tnode.Nodes)
                {
                    if (trnode.Checked)
                    {
                        list.Add(trnode.Tag.ToString());
                    }
                }
            }
            if (list.Count == 0)
            {
                MessageBox.Show("请选择权限!");
                return;
            }
            auth.DeleteforName(LoginID);
            Authority authModel = new Authority();
            for (int i = 0; i < list.Count; i++)
            {
                authModel.Sysfunction_ID = int.Parse(list[i]);
                authModel.User_ID = LoginID;
                auth.Add(authModel);
            }
            MessageBox.Show("保存成功！");
            msg.AddModel(HelpeMess.userID, "员工表导出成功", "员工表导出");
            this.Close();
        }

public  class UserRight
    {
      static AuthorityBLL authbll = new AuthorityBLL();
        public static bool CheckAuthority(string userNo, string authorityNum)
        {
          DataTable  ds= authbll.GetList(string.Format("User_ID='{0}' AND Sysfunction_ID={1}", userNo, authorityNum)).Tables[0];
            if (ds!= null)
            {
                if (ds.Rows.Count < 1)
                {
                    MessageBox.Show("对不起,你没有此权限!", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                    return false;
                }
                else
                    return true;
            }
            else
            {
                MessageBox.Show("对不起你没有此权限!", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                return false;
            }
        }
    }