• 我刚做的一个TreeView的CheckBox进行选中插入数据库,从数据库中读取数据后让CheckBox勾选的代码!


        #region 绑定角色
        /// <summary>
        /// 绑定权限信息
        /// </summary>
        protected void BindgvRoles()
        {
            string sql = "select * from GM_FileKind";
            DataTable dt = OADBHelper.GetDataTable(sql);
            this.gvRoles.DataSource = dt;
            this.DataBind();
        }
        #endregion


        #region TreeView 表员工表的显示至TreeView控件
        /// <summary>
        /// Tree绑定
        /// </summary>
        public void BindTree()
        {
            this.tvUsers.Nodes.Clear();
            string sql = "select * from Accounts_UserDepartment";
            DataView dv = OADBHelper.GetDataTable(sql).DefaultView;
            //dv.RowFilter = "Kind=0";
            foreach (DataRowView drv in dv)
            {
                TreeNode tn = new TreeNode();
                tn.Text = drv["Dept"].ToString();
                tn.Value = drv["AutoID"].ToString();
                //tn.NavigateUrl = drv["KURL"].ToString();
                tn.SelectAction = TreeNodeSelectAction.Expand;
                tn.Expanded = false;
                this.tvUsers.Nodes.Add(tn);
                addChildNodes(tn);
            }
        }


        /// <summary>
        /// 绑定子节点
        /// </summary>
        /// <param name="tn"></param>
        public void addChildNodes(TreeNode tn)
        {
            string sql = "select UserID,RealName from Accounts_Users where Dept='" + tn.Text + "'";
            DataView dv = OADBHelper.GetDataTable(sql).DefaultView;
            foreach (DataRowView drv in dv)
            {
                TreeNode childtn = new TreeNode();
                childtn.Text = drv["RealName"].ToString();
                childtn.Value = drv["UserID"].ToString();
                //childtn.NavigateUrl = drv["KURL"].ToString();
                childtn.Expanded = false;
                tn.ChildNodes.Add(childtn);
                addChildNodes(childtn);
            }
        }

        #endregion


        #region 从数据库中读取数据,然后勾选根节点的相应的CheckBox
        /// <summary>
        /// 从数据库中读取数据,然后勾选根节点的相应的CheckBox
        /// </summary>
        /// <param name="RoleId"></param>
        protected void BindTreeRoot(int RoleId, TreeNodeCollection treenode)
        {
            string sql = "";
            foreach (TreeNode nodes in treenode)
            {
                if (nodes.ChildNodes.Count > 0)
                {
                    //查找所有权限的人的部门Id
                    sql = "select Distinct[DepId] from GM_Roles where FKId=" + RoleId;

                    DataView dv = OADBHelper.GetDataTable(sql).DefaultView;

                    foreach (DataRowView drv in dv)
                    {

                        foreach (TreeNode node in treenode)
                        {

                            if (drv["DepId"].ToString() == node.Value.ToString())
                            {
                                node.Checked = true;
                            }

                            BindTreeRoot(RoleId, node.ChildNodes);
                        }
                    }
                }
                else
                {
                    //根据角色ID得到相应的的员工ID
                    sql = "select UserID from GM_Roles where FKId='" + RoleId + "'";

                    DataView dv = OADBHelper.GetDataTable(sql).DefaultView;

                    foreach (DataRowView drv in dv)
                    {

                        foreach (TreeNode node in treenode)
                        {

                            if (drv["UserID"].ToString() == node.Value.ToString())
                            {
                                node.Checked = true;
                            }

                            BindTreeRoot(RoleId, node.ChildNodes);
                        }
                    }
                }

            }
        }
        #endregion


        #region 设置权限
        /// <summary>
        /// 设置权限
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void lkbtnModify_Command(object sender, CommandEventArgs e)
        {
            int Id = Convert.ToInt32(e.CommandArgument.ToString());

            ViewState["RoleId"] = Id;

            BindTree();

            string sql = "select FKName from GM_FileKind where FKId=" + Id;

            lblRoles.Text = OADBHelper.GetString(sql);

            BindTreeRoot(Id, this.tvUsers.Nodes);
        }
        #endregion


        #region  权限设置操作
        /// <summary>
        /// 权限设置操作
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void btnModify_Click(object sender, EventArgs e)
        {
            if (this.lblRoles.Text == "没有选择角色")
            {
                Response.Write("<script>alert('请选择一个角色名称!');</script>");
            }
            else
            {
                int RoleId = Convert.ToInt32(ViewState["RoleId"].ToString());

                string sql = "select UserId from UserId where FKId=" + RoleId;

                DeleteRoles(Convert.ToInt32(ViewState["RoleId"].ToString()));

                this.GetCheckBoxChecked(this.tvUsers.Nodes);

                Response.Write("<script>alert('角色设置成功!');</script>");

            }
        }
        #endregion

        #region  添加选定的人到角色表(checkbox选中的,插入数据库)

        /// <summary>
        /// 选择要添加的角色
        /// </summary>
        /// <param name="treeNode"></param>
        private void GetCheckBoxChecked(TreeNodeCollection treeNode)
        {
            foreach (TreeNode node in treeNode)
            {
                if (node.Checked)
                {

                    if (node.ChildNodes.Count == 0)
                    {
                        //执行保存   
                        int UserId = Convert.ToInt32(node.Value.ToString());

                        InertRoleMember(Convert.ToInt32(ViewState["RoleId"].ToString()), UserId, Convert.ToInt32(ViewState["DepatId"].ToString()));

                        this.GetCheckBoxChecked(node.ChildNodes);
                    }
                    else
                    {

                        ViewState["DepatId"] = node.Value.ToString();

                        GetCheckBoxChecked(node.ChildNodes);

                    }

                }
                else
                {
                    if (node.ChildNodes.Count > 0)
                    {
                        this.GetCheckBoxChecked(node.ChildNodes);
                    }
                }
            }
        }
        #endregion

        #region 通过部门ID得到所有的人员Id
        /// <summary>
        /// 通过部门ID得到所有的人员Id
        /// </summary>
        /// <param name="DeptId"></param>
        /// <returns></returns>
        protected int GetUserIdByDeptId(int DeptId)
        {
            string strSql = "select Dept from Accounts_UserDepartment where AutoID=" + DeptId;

            string DeptName = OADBHelper.GetString(strSql);  //得到部门名称

            strSql = "select UserID from Accounts_Users where Dept='" + DeptName + "'";

            int UserId = Convert.ToInt32(OADBHelper.GetString(strSql));

            return UserId;
        }
        #endregion

        #region 根据选中的节点设置相应的权限人到数据库
        /// <summary>
        /// 根据选中的节点设置相应的权限人
        /// </summary>
        /// <param name="classId"></param>
        /// <param name="RoleId"></param>
        protected void InertRoleMember(int FKId, int UserId,int DeptId)
        {
            string sql = @"insert into GM_Roles(FKId,UserId,DepId)values('" + FKId + "','" + UserId + "','" + DeptId + "')";
            OADBHelper.GetInt(sql);
        }
        #endregion

        #region 根据角色Id删除相应的权限
        /// <summary>
        /// 根据角色Id删除相应的权限
        /// </summary>
        /// <param name="RoleId"></param>
        protected void DeleteRoles(int RoleId)
        {
            string sql = @"delete from GM_Roles where FKId=" + RoleId;
            OADBHelper.GetInt(sql);
        }
        #endregion

        #region C#复选框的操作
        /// <summary>
        /// 复选框改变时的操作
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void tvUsers_TreeNodeCheckChanged(object sender, TreeNodeEventArgs e)
        {
            SetChildChecked(e.Node);
        }

        /// <summary>

        /// 根据父节点情况来选择子节点

        /// </summary>

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

        private void SetChildChecked(TreeNode parentNode)
        {
            foreach (TreeNode node in parentNode.ChildNodes)
            {
                node.Checked = parentNode.Checked;
                if (node.ChildNodes.Count > 0)
                {
                    SetChildChecked(node);
                }
            }
        }
        #endregion

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  • 原文地址:https://www.cnblogs.com/12go/p/2155581.html
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