0

我遇到了一个我目前陷入困境的问题。例子：

EmployeeShiftID |     ShiftTime_Start     |     hiftTime_Stop     |     Name     | Emp_Start | Emp_Stop
                |(linked with foreign key)|    (linked with FK)   |              |           |
    1           |       0000              |         1000          |      Ken     |    0000   |    1000

这些数据显示在数据网格视图中，外键链接。并且 Shift start 和 stop 也匹配 Emp_Start 和 stop。问题是当我更新 Emp_start 和 stop 时，ShiftTime_Start 和 stop 不与 Emp_Start 和 Stop 比较，并且在我尝试将 Emp_Start 和 stop 更改为 0430 和 2100 时保持为 0000 和 1000。

我保存在数据库中的时间类型是字符串而不是“时间”类型。任何人都可以帮助我吗？我将展示我为它所做的任何代码。

private void btnUpdate_Click(object sender, EventArgs e)
{
    using (testEntities Setupctx = new testEntities())
    {
        int ID = Int32.Parse(lblID.Text);
        var ESquery = (from es in Setupctx.employeeshifts
                       where es.EmployeeShiftID == ID
                       select es).First();

        ESquery.StartTime = txtStart.Text;
        ESquery.EndTime = txtStop.Text;
        ESquery.Date = txtDate.Text;
        Setupctx.SaveChanges();
        txtStart.Text = "";
        txtStop.Text = "";
        txtDate.Text = "";
        this.Edit_Employee_Shift_Load(null, EventArgs.Empty);
        MessageBox.Show("Employee's Shift Has Been Updated.");
    }
}


private void LoadAllEditEmpShift()
{
    using (testEntities Setupctx = new testEntities())
    {
        BindingSource BS = new BindingSource();
        var Viewemp = from ES in Setupctx.employeeshifts
                      join shifthour sh in Setupctx.shifthours on ES.ShiftHourID equals sh.idShiftHours
                      select new
                      {
                          ES.EmployeeShiftID,
                          ShiftHour_Start = sh.shiftTiming_start,
                          ShiftHour_Stop = sh.shiftTiming_stop,
                          ES.EmployeeName,
                          ES.StartTime,
                          ES.EndTime,
                          ES.Date
                      };

        BS.DataSource = Viewemp;
        dgvEmpShift.DataSource = BS;
    }
}
4

2 回答 2

1

我认为它应该是这样的：

private void btnUpdate_Click(object sender, EventArgs e)
{
    using (testEntities Setupctx = new testEntities())
    {
        int ID = Int32.Parse(lblID.Text);
        var ESquery = (from es in Setupctx.employeeshifts
                       where es.EmployeeShiftID == ID
                       select es).First();
        var SHquery = (from sh in Setupctx.shifthours where sh.idShiftHours == ESQuery.ShiftHourID 
                      select sh).First();

        ESquery.StartTime = txtStart.Text;
        ESquery.EndTime = txtStop.Text;
        ESquery.Date = txtDate.Text;
        SHquery.shiftTiming_start = ESquery.StartTime;
        SHquery.shiftTiming_stop = ESquery.EndTime;
        Setupctx.SaveChanges();
        txtStart.Text = "";
        txtStop.Text = "";
        txtDate.Text = "";
        this.Edit_Employee_Shift_Load(null, EventArgs.Empty);
        MessageBox.Show("Employee's Shift Has Been Updated.");
    }
}
于 2012-07-24T09:39:43.150 回答
0

您应该在 btnUpdate_Click 方法中隐式更新 shifthours 对象的属性。

于 2012-07-24T07:59:01.810 回答