一个6年的菜鸟，在4年之前做的一些功能（二）

前戏：针对上一篇列出来的功能点，今天和大家分享下这个自定义的公式是怎么设计的，由于我的第一篇博客在首页被管理员移走了，大家可以点击这里来跳转，看下第一篇的目录结构。本人作为老菜鸟，和大家分享的也是一些老菜鸟的想法，大神千万别喷我.

设计背景：当初为什么要设计这个自定义的计算公式呢，原因就是，这个价格是不确定的，计算方式也是不确定的，那如果在代码里面写死，那将来修改起来会比较麻烦，作为老菜鸟，我想偷懒了，也是为了省事。

如何设计：这对目前项目的情况，计算的过程应该是按照线性的方式来计算的，那么问题就简单了。

首先我们先要定义一个范围控件，这个控件的目的就是，在某个区间之内，设置固定的金额或者单价，

一下我列出了部分代码，供大家提供思路

public partial class RolesUserControl :  UserControl

    {

        public delegate void DelLast(object o, DeleteEventArgs e);

 

        public event DelLast onLeftTextBox;

 

        public delegate void DeleteControl(object o, DeleteEventArgs e);

        public event DeleteControl onDelete;

 

        /// <summary>

        /// 控件索引

        /// </summary>

        public int Index { get; set; }

 

        /// <summary>

        /// 是否验证成功

        /// </summary>

        public bool isRegistOK { get; set; }

 

        /// <summary>

        /// 是否启用关闭

        /// </summary>

        public bool ShowClose

        {

            set

            {

                this.pictureBox1.Enabled = value;

            }

        }

 

        /// <summary>

        /// 是否显示关闭

        /// </summary>

        public bool ShowCloseVisible

        {

            set

            {

                this.pictureBox1.Visible = value;

            }

        }

 

        private int _dropDownListType = 2;

 

        /// <summary>

        /// 交易类型

        /// 1：金额

        /// 2：单价

        /// </summary>

        public int DropDownListType { get { return this._dropDownListType; } }

 

        public RolesUserControl()

        {

            InitializeComponent();

        }

 

        /// <summary>

        /// 构造

        /// </summary>

        /// <param name="strLast"></param>

        public RolesUserControl(string strLast)

        {

            InitializeComponent();

            this.tb_last1.Text = strLast;

        }

 

        /// <summary>

        /// 鼠标移开TextBox

        /// </summary>

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

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

        private void tb_last2_Leave(object sender, EventArgs e)

        {

            decimal d = 0.00m;

            if (!decimal.TryParse(this.tb_last2.Text, out d))

            {

                isRegistOK = false;

                this.tb_last2.Text = "请在这里输入格式为24.5的数据";

                return;

            }

 

            if (decimal.Parse(this.tb_last1.Text.Trim()) >= d)

            {

                isRegistOK = false;

                this.tb_last2.Text = "下限数据应该大于上限数据";

                return;

            }

 

            if (onLeftTextBox != null)

            {

                DeleteEventArgs dea = new DeleteEventArgs();

                dea.ControlName = this.Name;

                dea.Index = this.Index;

                dea.StrText = this.tb_last2.Text.Trim();

                this.onLeftTextBox(sender, dea);

            }

            this.isRegistOK = true;

 

        }

 

        /// <summary>

        /// 点击关闭

        /// </summary>

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

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

        private void pictureBox1_Click(object sender, EventArgs e)

        {

            if (this.onDelete != null)

            {

                DeleteEventArgs e1 = new DeleteEventArgs();

                e1.ControlName = this.Name;

                e1.Index = this.Index;

                onDelete(sender, e1);

            }

        }

 

        /// <summary>

        /// 切换类型，是使用单价还是使用金额

        /// </summary>

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

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

        private void ddl_type_SelectedIndexChanged(object sender, Telerik.WinControls.UI.Data.PositionChangedEventArgs e)

        {

            if (this.ddl_type.Text == "金额")

            {

                radLabel1.Text = "吨   金额：";

                tb_amount.Visible = true;

                tb_amount.Text = "";

                this._dropDownListType = 1;

            }

            else

            {

                radLabel1.Text = "吨   单价：";

                tb_amount.Visible = false;

                tb_amount.Text = "";

                this._dropDownListType = 2;

            }

        }

 

        /// <summary>

        /// 判断是否满足条件

        /// </summary>

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

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

        private void tb_amount_Leave(object sender, EventArgs e)

        {

            decimal d = 0.00m;

            if (!decimal.TryParse(this.tb_amount.Text, out d))

            {

                isRegistOK = false;

                this.tb_amount.Text = "请在这里输入格式为24.5的数据";

                return;

            }

 

            if (onLeftTextBox != null)

            {

                DeleteEventArgs dea = new DeleteEventArgs();

                dea.ControlName = this.Name;

                dea.Index = this.Index;

                dea.StrText = this.tb_last2.Text.Trim();

                this.onLeftTextBox(sender, dea);

            }

            this.isRegistOK = true;

        }

 

        private void tb_amount_KeyPress(object sender, KeyPressEventArgs e)

        {

            if ((e.KeyChar >= 48 && e.KeyChar <= 57) || e.KeyChar == 190 || e.KeyChar == 110 || e.KeyChar == 13 || e.KeyChar == 8 || e.KeyChar == 46)

            { }

            else

            {

                tb_amount.Text = "";

                MessageBox.Show("请输入数字");

                return;

            }

        }

}

那么对于上限，其实他也是个线性的，那么我们也来建立一个控件

这个控件用来计算最后临界值。

下面是重点代码，供大家解读

/// <summary>

        /// 添加保存事件

        /// </summary>

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

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

        private void radButton2_Click(object sender, EventArgs e)

        {

            if (this.tb_RoleName.Text.Trim() == "")

            {

                this.MessageBoxShow("请输入角色名称");

                return;

            }

 

            //解析界面数据

            Model.AutoWater_Sys_BaseRoles br = new Model.AutoWater_Sys_BaseRoles();

            br.RolesName = this.tb_RoleName.Text.Trim();

            br.CreateBy = this.CurrentUserName;

            br.CreateOn = DateTime.Now;

            br.IsUsing = true;

            br.IsDefault = false;

            br.RowState = 1;

            br.ID = Guid.NewGuid();

 

            List<Model.AutoWater_Sys_BaseRolesDetail> lbrd = new List<Model.AutoWater_Sys_BaseRolesDetail>();

 

            List<RolesUserControl> _List = new List<RolesUserControl>();

            //开始范围

            //rolesUserControl1 ，校验数据是否正确

            _List.Add(this.rolesUserControl1);

            string strMsg="";

            bool isVaild = this.VaildRolesUserControl(this.rolesUserControl1, ref strMsg);

            if (!isVaild)

            {

                _List.Clear();

                MessageBoxShow(strMsg);

                return;

            }

            //遍历Panel

            foreach (Control c in this.radPanel1.Controls)

            {

                isVaild = this.VaildRolesUserControl(c as RolesUserControl, ref strMsg);

                if (!isVaild)

                {

                    _List.Clear();

                    MessageBoxShow(strMsg);

                    return;

                }

                _List.Add(c as RolesUserControl);

            }

            string strValue1,strValue2,strValue3,strValues4;

            _List.ForEach(t => {

                //Last1

                strValue1 = (t.Controls.Find("tb_last1", true)[0] as RadTextBox).Text;

                //Last2

                strValue2 = (t.Controls.Find("tb_last2", true)[0] as RadTextBox).Text;

                //Price

                if (t.DropDownListType == 1)

                {

                    strValue3 = (t.Controls.Find("tb_amount", true)[0] as RadTextBox).Text;

                }

                else

                {

                    strValue3 = (t.Controls.Find("ddl_price", true)[0] as RadDropDownList).Text;

                }

 

                lbrd.Add(new Model.AutoWater_Sys_BaseRolesDetail() {

                 BaseTablesID=br.ID,

                  ID=Guid.NewGuid(),

                   BetweenValue=decimal.Parse(strValue2)-decimal.Parse(strValue1),

                    CountType=t.DropDownListType,

                     CountTypeValue=decimal.Parse(strValue3),

                      CreateBy=this.CurrentUserName,

                       CreateOn=DateTime.Now,

                        DownValue=decimal.Parse(strValue1),//下限不低于

                         UpValue = decimal.Parse(strValue2),//上限不超过

                          SortID=t.Index,

                });

            });

 

            //检查范围N

            //单价

            strValues4 = (this.userLastRolesControl1.Controls.Find("ddl_price", true)[0] as RadDropDownList).Text;

            //吨数范围

            strValue3= (this.userLastRolesControl1.Controls.Find("tb_last2", true)[0] as RadTextBox).Text;

            if (strValues4 != "" && strValue3!="")

            {

                lbrd.Add(new Model.AutoWater_Sys_BaseRolesDetail() {

                 BaseTablesID=br.ID,

                  SortID=9,

                   BetweenValue=decimal.Parse(strValue3),

                    UpValue=0.00m,

                      DownValue = decimal.Parse(strValue3),

                      CreateOn=DateTime.Now,

                       CreateBy=this.CurrentUserName,

                        ID=Guid.NewGuid(),

                         CountTypeValue=decimal.Parse(strValues4),

                          CountType=3,

                });

            }

 

            Combin<Model.AutoWater_Sys_BaseRoles, List<Model.AutoWater_Sys_BaseRolesDetail>> combinList = new Combin<Model.AutoWater_Sys_BaseRoles, List<Model.AutoWater_Sys_BaseRolesDetail>>(br,lbrd);

            bool isAddOK=SettingHelper.Init.AddBaseRoles(combinList);

            if (isAddOK)

            {

                this.MessageBoxShow("建立规则成功！");

                combinList = null;

                lbrd.Clear();

                br = null;

                lbrd = null;

                this.Close();

            }

            else

            {

                this.MessageBoxShow("建立规则失败！");

            }

        }

到此以上就是设置了定义计算规则的逻辑，是不是很简单，有了这些数据的规则之后，接下来就是解析这些数据了，有兴趣的朋友可以自己设计下，然后自己解析，因为这些在老菜鸟看来这些都是儿科的玩意，好了今天就和大家分享到这里，明天给大家分享下，我这个老菜鸟是如何开发发票设计器的，如何来动态设计发票模板，各位88