C#人事工资管理系统实验报告

武汉工业学院数据库应用系统设计实验报告 学号： 090501102 姓名： 毕 波 班级: 计算机091 指导教师： 人事工资管理系统设计总说明：在当今社会，工资管理是一项必要而且很关键的工作。现在随着企业数量的急剧增加，处理人们的工资数据变的越来越烦琐艰巨。如今，计算机已经普及到了几乎每个学校、家庭，我们的学习和生活已经处处离不开计算机的存在。本系统依据开发要求主要应用于企业人事系统，完成对日常的工资增删查改的数字化管理。比较系统地对员工的信息和工资进行管理，查询、增添、修改、删除都变的非常简便，节省了大量的工作量。本课程设计是在学习了数据库应用系统和相关开发软件课程之后，让学生通过实际项目的设计、开发，培养学生独立进行数据库软件的建模、在计算机中进行数据库设计、并通过相关软件开发系统的能力。本系统的基本功能包括：部门信息的管理（查询、添加、修改、删除学生部门等）、职员信息的管理（录入、查询、修改、删除员工的信息等）、工资信息的管理（录入、查询、修改员工的工资等）。本系统主要用于对员工工资进行管理，能够进行插入、删除、修改、查询和显示员工的信息。登录该系统时，用户需要输入口令和密码，以确保数据的安全性，成功登录的用户，可以插入员工的信息和工资，并对员工的信息和工资进行增、删、改操作。基于上述想法，我们将员工数据保存到数据库中。我们要求系统能够高效快速的处理数据，并且要保证数据的正确性、相容性和安全性。所以在数据库中需要定义很多触发器，比如删除了某个员工的信息则删除对应的所有工资信息、活着删除了某部门则删除该部门所有的信息等。所以我们要从数据库中读取数据，并且和界面联系起来，同时也能将用户界面上的数据存储到数据库中。以上是设计此系统应该注意的地方和设计原则，以下就是遵循这些原则和标准设计出的一套完整的管理系统。 一 系统需求：根据题目需求，可以把系统分为三个部分：部门信息管理部分、职员信息管理部分和工资信息管理部分。本次实验中，我主要负责部门信息管理模块，题中需要对部门信息进行查询、添加、修改、删除操作，这些操作按是否改变数据库数据可分为两类：查询操作，只读取数据库信息，不对信息做修改；删除、更新和添加操作，需要对数据库中的数据进行读写操作。因此只要写两部分代码，查询部分:deptinfo_Query进行部门信息查询，查询数据库信息；信息管理部分：deptinfo_Manage，对信息进行更新、增加和删除。二 数据库设计1.数据需求人事工资管理系统需要完成的主要功能有：1员工的基本信息录入2.工资信息表的录入。3.部门信息表的查询、插入、修改、删除等操作。2.相关表表1 职工表：Employee_Info表2 工资表：Salary表3 部门表：Dept_Info表4 系统用户表：User_Info3.数据流程图人事工资管理系统登录 系统管理员职工表部门表工资表图 数据流程图三 员工工资相关操作 1.查询部分 相关代码： dateGrid1数据绑定 private void BindData(String sql) SqlConnection connection = new SqlConnection(connString); SqlDataAdapter dataAdapter = new SqlDataAdapter(sql, connection); DataSet dataSet = new DataSet(); dataAdapter.Fill(dataSet); dataGridView1.DataSource = dataSet.Tables0; dataGridView1.Columns0.DataPropertyName = 职工号?; dataGridView1.Columns1.DataPropertyName = 年份; dataGridView1.Columns2.DataPropertyName = 月份; dataGridView1.Columns3.DataPropertyName = 工资; 部门组合框的数据绑定 private void BindDeptComBox() string sql = SELECT * FROM Dept_Info; SqlConnection connection = new SqlConnection(connString); SqlDataAdapter dataAdapter = new SqlDataAdapter(sql, connection); DataSet dataSet = new DataSet(); dataAdapter.Fill(dataSet); DeptcomBox.DataSource = dataSet.Tables0; DeptcomBox.DisplayMember = DeptName; DeptcomBox.ValueMember = DeptID; DeptcomBox.SelectedIndex = 0; 按部门查询 private void check1_CheckedChanged(object sender, EventArgs e) if (check1.Checked) btnYes.Enabled = true; DeptcomBox.Enabled = true; check4.Checked = false; check4.Enabled = false; else DeptcomBox.Enabled = false; check4.Enabled = true; 按年份查询 private void check2_CheckedChanged(object sender, EventArgs e) btnYes.Enabled = true; if (check2.Checked) YearComBox.Enabled = true; else YearComBox.Enabled = false; YearComBox.SelectedIndex = 0; 按月份Y查询 private void check3_CheckedChanged(object sender, EventArgs e) if (check3.Checked) btnYes.Enabled = true; MonthComBox.Enabled = true; else MonthComBox.Enabled = false; 仅查询自己的工资 private void check4_CheckedChanged(object sender, EventArgs e) if (check4.Checked) btnYes.Enabled = true; check1.Enabled = false; DeptcomBox.Enabled = false; else check1.Enabled = true; check1.Checked = false; private void btnYes_Click(object sender, EventArgs e) count = 0; String YearStr; int MonthStr; String DeptStr; String sqlStr = ; sql = ; DeptStr = Convert.ToString(DeptcomBox.SelectedValue.ToString(); 部门号 if (check1.Checked) DeptStr = Convert.ToString(DeptcomBox.SelectedValue.ToString(); sqlStr = String.Format(select Salary.EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary,Employee_Info where DeptID=0and Salary.EmpID=Employee_Info.EmpID, DeptStr); if (count = 0) sql += sqlStr; count = 1; else sql += intersect + sqlStr; check1.Checked = false; 年份 if (check2.Checked) YearStr = Convert.ToString(YearComBox.SelectedItem.ToString(); if(this.mainForm.operatorRight=2) sqlStr = String.Format(select EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary where Year=0, YearStr); else if(this.mainForm.operatorRight=1) sqlStr = String.Format(select Salary.EmpID as 职工号, Year as 年份, Month as 月, Salary as 工资 from Salary,Employee_Info,Dept_Info where Year=0and Salary.EmpID=Employee_Info.EmpID and Employee_Info.DeptID=Dept_Info.DeptID and Dept_Info.DeptID in (select DeptID from Employee_Info where EmpID=1), YearStr,this.mainForm.person.userName); else sqlStr = String.Format(select EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary where Year=0and EmpID=1, YearStr,this.mainForm.person.userName); if (count = 0) sql += sqlStr; count = 1; else sql += intersect + sqlStr; check2.Checked = false; 月份 if (check3.Checked) MonthStr = Convert.ToInt32(MonthComBox.SelectedItem.ToString(); if (this.mainForm.operatorRight = 2) sqlStr = String.Format(select EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary where Month=0, MonthStr); else if (this.mainForm.operatorRight = 1) sqlStr = String.Format(select Salary.EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary,Employee_Info,Dept_Info where Month=0and Salary.EmpID=Employee_Info.EmpID and Employee_Info.DeptID=Dept_Info.DeptID and Dept_Info.DeptID in (select DeptID from Employee_Info where EmpID=1), MonthStr, this.mainForm.person.userName); else sqlStr = String.Format(select EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工 from Salary where Month=0 and EmpID=1, MonthStr,this.mainForm.person.userName); if (count = 0) sql += sqlStr; count = 1; else sql += intersect + sqlStr; check3.Checked = false; 自己工资 if (check4.Checked) sql = String.Format(select EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary where EmpID=0, this.mainForm.person.userName); if (count = 0) sql += sqlStr; count = 1; else sql += intersect + sqlStr; check4.Checked = false; SqlCommand command = new SqlCommand(sql, connection); try connection.Open(); SqlDataReader data = command.ExecuteReader(); if (data.Read() BindData(sql); else if(this.mainForm.operatorRight=2) sql = String.Format(select EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary); else if (this.mainForm.operatorRight = 1) sql = String.Format(select Salary.EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary,Employee_Info,Dept_Info where Salary.EmpID=Employee_Info.EmpID and Employee_Info.DeptID=Dept_Info.DeptID and Dept_Info.DeptID in (select DeptID from Employee_Info where EmpID=0), this.mainForm.person.userName); else sql = String.Format(select EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary where EmpID=0, this.mainForm.person.userName); BindData(sql); MessageBox.Show(查询失败,没有符合要求的工资信息, 查找失败, MessageBoxButtons.OK, MessageBoxIcon.Exclamation); catch (Exception ex) MessageBox.Show(ex.Message, 数据库操作失败, MessageBoxButtons.OK, MessageBoxIcon.Exclamation); finally connection.Close(); private void LoadOrCancel() mainForm = (MainForm)this.ParentForm; YearComBox.SelectedIndex = 0; MonthComBox.SelectedIndex = 0; YearComBox.Enabled = false; MonthComBox.Enabled = false; DeptcomBox.Enabled = false; btnYes.Enabled = false; BindDeptComBox(); if (this.mainForm.operatorRight = 2) sql = String.Format(select EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary); else if (this.mainForm.operatorRight = 1) DeptcomBox.Visible = false; check1.Visible = false; sql = String.Format(select Salary.EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary,Employee_Info,Dept_Info where Salary.EmpID=Employee_Info.EmpID and Employee_Info.DeptID=Dept_Info.DeptID and Dept_Info.DeptID in (select DeptID from Employee_Info where EmpID=0), this.mainForm.person.userName); else check1.Visible = false; check4.Visible = false; DeptcomBox.Visible = false; sql = String.Format(select EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary where EmpID=0, this.mainForm.person.userName); BindData(sql); count = 0; private void groupBox2_Enter(object sender, EventArgs e) 2.对表的增删改部分： ataGrid数据绑定 private void BindData() sql = String.Format(select EmpID as 职工号, Year as 年份, Month as 月份, Salary as 工资 from Salary); SqlConnection connection = new SqlConnection(connString); SqlDataAdapter dataAdapter = new SqlDataAdapter(sql, connection); DataSet dataSet = new DataSet(); dataAdapter.Fill(dataSet); dataGridView1.DataSource = dataSet.Tables0; dataGridView1.Columns0.DataPropertyName = 职工号; dataGridView1.Columns1.DataPropertyName = 年份; dataGridView1.Columns2.DataPropertyName = 月份; dataGridView1.Columns3.DataPropertyName = 工资; 删除 private void btn3_Click(object sender, EventArgs e) cleartext(); textreadwrite(); btnOkOrCancel(); combMonth.Enabled = true; combYear.Enabled = true; txt4.ReadOnly = true; opterate = delete; 修改或更新职工工资信息 private void btnOk_Click(object sender, EventArgs e) btnOkOrCancel(); btnOk.Enabled = false; EmpID = txt1.Text; Year = Convert.ToString(combYear.SelectedItem.ToString(); Month = Convert.ToInt32(combMonth.SelectedItem.ToString(); String salary = txt4.Text; if (salary = ) salary = 0; Salary = (float)Convert.ToDouble(salary.Trim(); int num = 0; try if (EmpID != ) sql = String.Format(select count (*) from Employee_Info where EmpID=0, EmpID); SqlCommand command = new SqlCommand(sql, connection); connection.Open(); int c = (int)command.ExecuteScalar(); connection.Close(); if (c 0) connection = new SqlConnection(connString); connection.Open(); sql = String.Format(select count (*) from Salary where EmpID=0and Year=1 and Month=2, EmpID, Year, Month); SqlCommand mycmd = new SqlCommand(sql, connection); num = (int)mycmd.ExecuteScalar(); connection.Close(); 职工的工资信息存在 if (num 0) if (opterate = insert) MessageBox.Show(录入不成功，您要录入的员工的工资信息已存在！, 录入失败, MessageBoxButtons.OK, MessageBoxIcon.Exclamation); textreadonly(); else if (opterate = update) sql = String.Format(update Salary set Salary=0where EmpID=1 and Year=2 and Month=3, Salary, EmpID, Year, Month); connection.Open(); command = new SqlCommand(sql, connection); command.ExecuteNonQuery(); connection.Close(); BindData(); textreadonly(); MessageBox.Show(更新成功！ , 更新成功, MessageBoxButtons.OK, MessageBoxIcon.Exclamation); else connection.Open(); sql = String.Format(delete from Salary where EmpID=0and Year=1 and Month=2, EmpID, Year, Month); command = new SqlCommand(sql, connection); command.ExecuteNonQuery(); connection.Close(); BindData(); MessageBox.Show(删除成功！ , 删除成功, MessageBoxButtons.OK, MessageBoxIcon.Exclamation); textreadonly(); else if (opterate = insert) sql = String.Format(insert into Salary(EmpID,Year,Month,Salary)values (0,1,2,3), EmpID, Year, Month, Salary); command = new SqlCommand(sql, connection); connection.Open(); command.ExecuteNonQuery(); connection.Close(); BindData(); MessageBox.Show(录入成功！ , 录入成功, MessageBoxButtons.OK, MessageBoxIcon.Exclamation); textreadonly(); else if (opterate = update) MessageBox.Show(修改失败，不存在要修改的工资信息！ , 修T改失败, MessageBoxButtons.OK, MessageBoxIcon.Exclamation); textreadonly(); else MessageBox.Show(删除失败，不存在要删除的工资