C# WindowsForm 员工管理系统四【发放工资】

要实现“发放工资”的功能，首先数据库中应该有个表用来存储工资数据，其次发放工资是由管理员执行。

新建“Pay”表

注: 因为一个人会有多条记录，比如一月的工资和二月的工资，这两条记录所属同一个人，所以ID不为主键。



这里的FinalPay=[BasePay]+[WealPay])+[RewardPay])-[UnInsurance])-[HousingFund])



添加触发器完成三表同步删除，前面已经完成了StaffInfo和StaffAccount

现在添加StaffAccount和Pay表的删除触发器

ALTER trigger [dbo].[trigger_deleteStaff2]
on [dbo].[StaffAccount]
after delete
AS
begin delete Pay
where
ID in(
select ID from deleted)
end

设计窗体

修改ManagerForm窗体，新增控件有（Button,Label,TextBox,GroupBox,）



双击“发放工资”按钮

private void button2_Click(object sender, EventArgs e)
{
float basePay;
float wealPay;
float rewardPay;
float unInsurance;
float housingFund;
try {
basePay = (float)Convert.ToDouble(txtBasePay.Text.Trim());
wealPay = (float)Convert.ToDouble(txtWealPay.Text.Trim());
rewardPay = (float)Convert.ToDouble(txtRewardPay.Text.Trim());
unInsurance = (float)Convert.ToDouble(txtUnInsurance.Text.Trim());
housingFund = (float)Convert.ToDouble(txtHousingFund.Text.Trim());
}
catch(Exception ex)
{
txtBasePay.Text = "";
MessageBox.Show("工资不是数字，警告！！");
return;
}
if (dgvManager.CurrentRow.Selected)
{
int id = Convert.ToInt32(dgvManager.CurrentRow.Cells[0].Value.ToString());
string today = DateTime.Now.ToLocalTime().ToString();
SqlParameter[] param =
{
new SqlParameter("@basePay",basePay),
new SqlParameter("@wealPay",wealPay),
new SqlParameter("@rewardPay",rewardPay),
new SqlParameter("@unInsurance",unInsurance),
new SqlParameter("@housingFund",housingFund),
new SqlParameter("@date",today),
new SqlParameter("@id",id)
};
string sql = "insert into Pay(BasePay,WealPay,RewardPay,UnInsurance,HousingFund,Date,ID) values(@basePay,@wealPay,@rewardPay,@unInsurance,@housingFund,@date,@id)";
string connstr = ConfigurationManager.ConnectionStrings["WindowsFormsApplication6.Properties.Settings.staffConnectionString"].ConnectionString;
SqlConnection conn = new SqlConnection(connstr);
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Open();
cmd.Parameters.AddRange(param);
int n = 0;
n = cmd.ExecuteNonQuery();
if (n == 0)
{
MessageBox.Show("添加失败!");
return;
}
else if (n > 0)
{
MessageBox.Show("添加成功!");
}
conn.Close();
}
}

双击“返回主界面”按钮，添加代码：

this.Close();

双击“退出系统”按钮，添加代码：

Application.Exit();

运行结果：