(7) 值班管理子窗体代码
值班管理子窗体的作用是把值班人员的时间安排形成列表。运行的值班管理子窗体如图44所示。
图44 运行的值班管理子窗体
先定义连接数据库的变量:
Option Explicit
Dim rs_zhiban As New ADODB.Recordset
然后列出窗体部分的代码。
Private Sub cmdadd_Click()
On Error GoTo adderror
If cmdadd.Caption = "新增记录" Then ' 当此按钮的状态为为“增加记录”时
cmdadd.Caption = "确定" ' 按钮名称改“确定”
cmddel.Enabled = False
DataGrid1.AllowAddNew = True
DataGrid1.AllowUpdate = True ' 设定DataGrid可以增加记录
Else
If Not IsNull(DataGrid1.Bookmark) Then
If Not IsDate(Trim(DataGrid1.Columns("值班开始日期").CellText(DataGrid1.Bookmark))) Then
MsgBox "请按照格式yyyy-mm-dd输入值班开始日期", vbOKOnly + vbExclamation, ""
Exit Sub
End If
If Not IsDate(Trim(DataGrid1.Columns("值班开始时间").CellText(DataGrid1.Bookmark))) Then
MsgBox "请按照格式hh-mm输入值班开始时间", vbOKOnly + vbExclamation, ""
Exit Sub
End If
If Not IsDate(Trim(DataGrid1.Columns("值班截止日期").CellText(DataGrid1.Bookmark))) Then
MsgBox "请按照格式yyyy-mm-dd输入值班截止日期", vbOKOnly + vbExclamation, ""
Exit Sub
End If
If Not IsDate(Trim(DataGrid1.Columns("值班截止时间").CellText(DataGrid1.Bookmark))) Then
MsgBox "请按照格式hh-mm输入值班截止时间", vbOKOnly + vbExclamation, ""
Exit Sub
End If
If Trim(DataGrid1.Columns("值班人").CellText(DataGrid1.Bookmark)) = "" Then
MsgBox "值班人不能为空!", vbOKOnly + vbExclamation, ""
Exit Sub
End If
rs_zhiban.Update
MsgBox "添加信息成功!", vbOKOnly + vbExclamation, ""
DataGrid1.AllowAddNew = False
DataGrid1.AllowUpdate = False
Else
MsgBox "没有添加信息!", vbOKOnly + vbExclamation, ""
End If
cmdadd.Caption = "新增记录"
cmddel.Enabled = True
End If
adderror:
If Err.Number <> 0 Then
MsgBox Err.Description
End If
End Sub
Private Sub cmdcancel_Click()
Unload Me
MDIForm1.Show
End Sub
Private Sub cmddel_Click()
Dim answer As String
On Error GoTo delerror
answer = MsgBox("确定要删除吗?", vbYesNo, "")
If answer = vbYes Then
DataGrid1.AllowDelete = True
rs_zhiban.Delete
rs_zhiban.Update
DataGrid1.Refresh
MsgBox "成功删除!", vbOKOnly + vbExclamation, ""
DataGrid1.AllowDelete = False
Else
Exit Sub
End If
delerror:
If Err.Number <> 0 Then
MsgBox Err.Description
End If
End Sub
Private Sub Form_Load()
Dim sql As String
On Error GoTo loaderror
sql = "select * from 值班管理"
rs_zhiban.CursorLocation = adUseClient
rs_zhiban.Open sql, conn, adOpenKeyset, adLockPessimistic ' 打开数据库
' 设定DataGrid控件属性
DataGrid1.AllowAddNew = False ' 不可增加
DataGrid1.AllowDelete = False ' 不可删除
DataGrid1.AllowUpdate = False
Set DataGrid1.DataSource = rs_zhiban
Exit Sub
loaderror:
MsgBox Err.Description
End Sub
Private Sub Form_Unload(Cancel As Integer)
Set DataGrid1.DataSource = Nothing
rs_zhiban.Close
End Sub
(8) 投诉管理子窗体代码
投诉管理子窗体是为了对人员进行更好的管理而设置的，可以向其添加投诉的对象、时间和内容等。投诉管理运行后的子窗体如图45所示。
图45 运行的投诉管理子窗体
以下为窗体的代码:
Private Sub Command1_Click()
On Error GoTo adderr
Text1.SetFocus
Adodc1.Recordset.AddNew
Exit Sub
adderr:
MsgBox Err.Description
End Sub
Private Sub Command2_Click()
On Error GoTo deleteerr
With Adodc1.Recordset
If Not .EOF And Not .BOF Then
If MsgBox("删除当前记录吗?", vbYesNo + vbQuestion) = vbYes Then
.Delete
.MoveNext
If .EOF Then .MoveLast
End If
End If
End With
Exit Sub
deleteerr:
MsgBox Err.Description
End Sub
Private Sub Command3_Click()
Adodc1.Recordset.MovePrevious
If Adodc1.Recordset.BOF Then
MsgBox "这是第一条记录", vbOKCancel + vbQuestion
Adodc1.Recordset.MoveFirst
End If
End Sub
Private Sub Command4_Click()
Adodc1.Recordset.MoveNext
If Adodc1.Recordset.EOF Then
MsgBox "这是最后一条记录", vbOKCancel + vbQuestion
Adodc1.Recordset.MoveLast
End If
End Sub
Private Sub Command5_Click()
If Adodc1.Recordset.EOF Then
MsgBox "记录空", vbOKCancel + vbQuestion
End
Else
Adodc1.Recordset.MoveFirst
End If
Exit Sub
End Sub
Private Sub Command6_Click()
If Adodc1.Recordset.RecordCount = 0 Then
MsgBox "空记录", vbOKCancel + vbQuestion
End
Else
Adodc1.Recordset.MoveLast
End If
End Sub
Private Sub Command7_Click()
MDIForm1.Show
frmtousu.Hide
End Sub
到这里，各个窗体的界面和代码都介绍完了。发布后可以作为一个实际的项目应用。
