C#Winform菜鸟驿站管理系统-快递信息管理界面多条件查询实现方法

1，具体的页面设计如下，

2， 关于下拉框数据填充实现，站点选择代码实现如下，因为站点加载在很多界面需要用到，所以把加载站点的方法独立出来如下；

 /// 

        /// 加载站点下拉框
        /// 
        /// 
        public static void LoadCboStations(ComboBox cboStations, StationBLL statBLL)
        {
            List stationList01 = statBLL.GetCboStationList();
            stationList01.Insert(0, new StationInfo()
            {
                StationId=0,
                StationName= "请选择站点"
            });
            cboStations.DisplayMember = "StationName";
            cboStations.ValueMember = "StationId";
            cboStations.DataSource = stationList01;
        }

 3，在快递信息管理页面调用加载站点的方法，然后在页面初始化的调用LoadCboStations 该方法

 /// 

        /// 加载站点下拉框
        /// 
        private void LoadCboStations()
        {
            FormUtility.LoadCboStations(cboStations, stationBLL);
        }

 4，快递状态和 取件方式 数据绑定如下；

5，点击查询按钮事件代码如下

/// 

        /// 查询
        /// 
        /// 
        /// 
        private void btnFind_Click(object sender, EventArgs e)
        {
            FindExpressList();
        }

6，FindExpressList 具体实现方法如下

 private void FindExpressList()
        {
            string keywords = txtkeywords.Text.Trim();
            string expType = tvExpTypes.SelectedNode.Text;//选择节点的文本
            if (expType == "快递类别")
                expType = "";
            int stationId = cboStations.SelectedValue.GetInt();
            string expState = cboStates.Text.Trim();
            if (expState == "全部")
                expState = "";
            string pickWay = cboPickWays.Text.Trim();
            if (pickWay == "全部")
                pickWay = "";
            string expNumber = txtExpNo.Text.Trim();
            string receiver = txtReceiver.Text.Trim();
            string recPhone = txtRecPhone.Text.Trim();
            bool showDel = chkShowDel.Checked;
            int startIndex = uPager1.StartIndex;//当页的开始索引
            int pageSize = uPager1.PageSize;//每页记录数
            dgvExpressList.AutoGenerateColumns = false;
            PageModel pageModel = expressBLL.FindExpressList(keywords, expType, stationId, expState, expNumber, receiver, recPhone, pickWay, showDel, startIndex, pageSize);
            if (pageModel.TotalCount > 0)
            {
                dgvExpressList.DataSource = pageModel.PageList;
                uPager1.Record = pageModel.TotalCount;
                uPager1.Enabled = true;
            }
            else
            {
                dgvExpressList.DataSource = null;
                uPager1.Enabled = false;
            }
            SetActBtnsVisible(showDel);

        }

7，左侧类别节点加载，在页面初始化调用

/// 

        /// 类别节点树加载
        /// 
        private void LoadTvExpTypes()
        {
            List expTypeList = expressTypeBLL.GetCboExpTypes(1);
            TreeNode rootNode = new TreeNode() { Name = "0", Text = "快递类别" };
            tvExpTypes.Nodes.Add(rootNode);
            //递归加载节点
            AddTvNode(expTypeList, rootNode, 0);
            tvExpTypes.ExpandAll();
        }

8，页面初始化

 9， DAL层如何实现多条件查询以及分页实现代码如下

 /// 

        /// 分页查询快递列表
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        public PageModel FindExpressList(string keywords, string expType, int stationId, string expState, string expNumber, string receiver, string receivePhone, string pickWay, int isDeleted, int startIndex, int pageSize)
        {
            string strWhere = $"IsDeleted={isDeleted}";
            if (!string.IsNullOrEmpty(keywords))
            {
                strWhere += " and (ExpNumber like @keywords  or SendAddress  like @keywords or ReceiveAddress   like @keywords  or ExpRemark like @keywords)";
            }
            if (!string.IsNullOrEmpty(expType))
            {
                strWhere += " and ExpType like @expType";
            }
            if (stationId > 0)
            {
                strWhere += " and StationId=" + stationId;
            }
            if (!string.IsNullOrEmpty(expState))
            {
                strWhere += " and ExpState=@expState";
            }
            if (!string.IsNullOrEmpty(pickWay))
            {
                strWhere += " and PickWay=@pickWay";
            }
            if (!string.IsNullOrEmpty(expNumber))
            {
                strWhere += " and ExpNumber like @expNumber";
            }
            if (!string.IsNullOrEmpty(receiver))
            {
                strWhere += " and Receiver = @receiver";
            }
            if (!string.IsNullOrEmpty(receivePhone))
            {
                strWhere += " and ReceiverPhone = @receiverPhone";
            }
            string cols = "ExpId,ExpNumber,ExpType,Receiver,ReceiverPhone,StationName,Sender,SenderPhone,ExpState,EnterTime,PickWay";
            SqlParameter[] paras =
            {
                new SqlParameter("@keywords", $"%{keywords}%"),
                new SqlParameter("@expType", $"%{expType}%"),
                new SqlParameter("@expState", expState),
                new SqlParameter("@expNumber", $"%{expNumber}%"),
                new SqlParameter("@receiver", receiver),
                new SqlParameter("@receiverPhone", receivePhone),
                new SqlParameter("@pickWay", pickWay)
            };
            return GetRowsModelList(strWhere, cols, "Id", "ExpId", startIndex, pageSize, paras);
        }
    }
}

BLL层代码如下；

/// 

        /// 分页查询快递信息
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        /// 
        public PageModel FindExpressList(string keywords, string expType, int stationId, string expState, string expNumber, string receiver, string receivePhone, string pickWay, bool blShowDel, int startIndex, int pageSize)
        {
            int isDeleted = blShowDel ? 1 : 0;
            return viewExpressDAL.FindExpressList(keywords, expType, stationId, expState, expNumber, receiver, receivePhone, pickWay, isDeleted, startIndex, pageSize);
        }

以上就是综合查询的内容展示。