基本信息
源码名称:C# 超市管理系统源码(含数据库)
源码大小:1.34M
文件格式:.rar
开发语言:C#
更新时间:2020-12-21
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   源码介绍

该系统工作流程:超市工作人员在管理商品时,用户对商品的价格,折扣等进行管理,并进行增删改。(1)该管理软件将对商品进行管理和统计,对产品的价格进行录入管理和统计;(2)根据需要对商品名称、价格、是否打折等进行查询,并能显示详细信息;(3)为用户提供账号管理工具,以便用户对账号进行管理,具体为登录修改用户密码;(4)提供商品的增加,删除,修改,对商品进行管理,还可以分类查看打折商品和原价商品。数据库中需要存储的数据:用户登录名、密码、商品名称、价格、是否打折、商品类别、打折价格等。


private void frmEditCommodity_Load(object sender, EventArgs e)

        {

            if (commodityID==0)//添加

            {

                this.GetCommoditySort();

            }

            else//修改

            {

                this.GetCommodity();

                this.btnSave.Text = "修改";

            }

        }

 private void btnSave_Click(object sender, EventArgs e)//保存

        {

            if (CheckInput())

            {

                if (commodityID==0)//新增

                {

                    InsertCommodity();

                }

                else//修改

                {

                    UpdateCommodity();

                }

            }

        }

private void chkIsPrice_CheckStateChanged(object sender, EventArgs e) //选择被更改

        {

            if ( chkIsPrice .Checked)

            {

                this.numReducedPrice.Enabled = true;

            }

            else

            {

                this.numReducedPrice.Enabled = false;

                this.numReducedPrice.Value = this.numPrice.Value;

            }

        }

 

新增商品的方法:

private void InsertCommodity()

        {

            DBHelper db = new DBHelper();

            try

            {

                //sql语句

                string sql = string.Format("insert into Commodity(CommodityName,SortID,CommodityPrice,IsDiscount,ReducedPrice) values('{0}','{1}','{2}','{3}','{4}')",

                    txtName.Text.Trim(), Convert.ToInt32(cboSort.SelectedValue), this.numPrice.Value,

                    this.chkIsPrice.Checked ? 1 : 0, numReducedPrice.Value);

                Console.WriteLine(sql);

                SqlCommand cmd = new SqlCommand(sql, db.Connection);//执行工具

                db.OpenConnection();//打开数据库连接

                int result = cmd.ExecuteNonQuery(); //执行

                if (result==1)

                {

                    MessageBox.Show ("添加成功","系统提示",MessageBoxButtons.OK,MessageBoxIcon.Information );

                    this.Close();

            }

            }

            catch (Exception )

            {

                MessageBox.Show("数据库操作失败, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

            }

            finally

            {

 

            }

        }

修改商品的方法:

private void UpdateCommodity()

        {

            DBHelper helper = new DBHelper();

            try

            {

                string sql = string.Format("update Commodity set Commodity.CommodityName ='{0}',Commodity.SortID='{1}',Commodity.CommodityPrice ='{2}', Commodity.IsDiscount ='{3}',Commodity.ReducedPrice ='{4}' where Commodity.CommodityID ='{5}'",txtName.Text.Trim(),Convert.ToInt32 (cboSort .SelectedValue),this.numPrice.Value ,this.chkIsPrice.Checked?1:0,numReducedPrice .Value ,this.commodityID);

                //执行工具

                SqlCommand cmd = new SqlCommand(sql.ToString(), helper.Connection);  

                helper.OpenConnection();//打开数据库连接

                int result = cmd.ExecuteNonQuery()//执行

                if (result == 1)//判断

                {

                    MessageBox.Show("修改成功", "系统提示?", MessageBoxButtons.OK, MessageBoxIcon.Information);

                    this.Close();

                }

            }

            catch (Exception )

            {

                MessageBox.Show("数据库操作发生错误", "系统提示",MessageBoxButtons.OK, MessageBoxIcon.Information);

            }

            finally

            {

                helper.CloseConnection();

            }

        }

删除商品方法:

private void DeleteCommodityByID()

        {

            if (this.dgvCommodity.CurrentRow != null)

            {

                DialogResult dr = MessageBox.Show("确定要删除名称为" dgvCommodity.CurrentRow.Cells[1].Value, "系统提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);

                if (dr == DialogResult.OK)

                {

                    DBHelper helper = new DBHelper();

                    try

                    {

                        //sql语句

                        StringBuilder sb = new StringBuilder();

                        sb.AppendFormat("delete from Commodity where CommodityID={0}", Convert.ToInt32(dgvCommodity.CurrentRow.Cells[0].Value));

                        //执行

                        SqlCommand cmd = new SqlCommand(sb.ToString(), helper.Connection);

                        //打开数据库连接

                        helper.OpenConnection();

                        //执行

                        int result = cmd.ExecuteNonQuery();

                        if (result == 1)

                        {

                            MessageBox.Show("删除成功!", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

                            //重新绑定dgv

                            this.FillCommodityInfo();

                        }

                    }

                    catch (Exception)

                    {

                        MessageBox.Show("数据库操作失败, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

                    }

                    finally

                    {

                        helper.CloseConnection();

                    }

                }

            }

        }