frmquerystudent.frm

来自「数据库课程设计」· FRM 代码 · 共 300 行

VERSION 5.00
Object = "{5E9E78A0-531B-11CF-91F6-C2863C385E30}#1.0#0"; "Msflxgrd.ocx"
Begin VB.Form frmQueryStudent 
   Caption         =   "学生管理－查询"
   ClientHeight    =   4470
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   6255
   LinkTopic       =   "Form1"
   ScaleHeight     =   4470
   ScaleWidth      =   6255
   StartUpPosition =   3  'Windows Default
   Begin MSFlexGridLib.MSFlexGrid fgStudent 
      Height          =   1935
      Left            =   120
      TabIndex        =   10
      Top             =   2400
      Width           =   6015
      _ExtentX        =   10610
      _ExtentY        =   3413
      _Version        =   393216
   End
   Begin VB.CommandButton cmdCancel 
      Caption         =   "返回(&C)"
      Height          =   375
      Left            =   3120
      TabIndex        =   9
      Top             =   1920
      Width           =   1335
   End
   Begin VB.CommandButton cmdOK 
      Caption         =   " 查询(&Q)"
      Height          =   375
      Left            =   1440
      TabIndex        =   8
      Top             =   1920
      Width           =   1335
   End
   Begin VB.Frame Frame1 
      Caption         =   "查询条件"
      Height          =   1455
      Left            =   120
      TabIndex        =   0
      Top             =   240
      Width           =   6015
      Begin VB.ComboBox cboClass 
         Height          =   315
         Left            =   1560
         TabIndex        =   7
         Top             =   840
         Width           =   1215
      End
      Begin VB.OptionButton optchoice 
         Caption         =   "按班级查询"
         Height          =   375
         Index           =   1
         Left            =   240
         TabIndex        =   6
         Top             =   840
         Width           =   1335
      End
      Begin VB.TextBox txtName 
         Height          =   375
         Left            =   4560
         TabIndex        =   5
         Top             =   840
         Width           =   1215
      End
      Begin VB.TextBox txtNo 
         Height          =   375
         Left            =   4560
         TabIndex        =   4
         Top             =   360
         Width           =   1215
      End
      Begin VB.OptionButton optchoice 
         Caption         =   "按姓名查询"
         Height          =   375
         Index           =   3
         Left            =   3120
         TabIndex        =   3
         Top             =   840
         Width           =   1335
      End
      Begin VB.OptionButton optchoice 
         Caption         =   "按学号查询"
         Height          =   375
         Index           =   2
         Left            =   3120
         TabIndex        =   2
         Top             =   360
         Width           =   1455
      End
      Begin VB.OptionButton optchoice 
         Caption         =   "查询全部"
         Height          =   375
         Index           =   0
         Left            =   240
         TabIndex        =   1
         Top             =   360
         Width           =   1335
      End
      Begin VB.Line Line1 
         BorderColor     =   &H80000005&
         X1              =   3000
         X2              =   3000
         Y1              =   240
         Y2              =   1320
      End
   End
End
Attribute VB_Name = "frmQueryStudent"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Public sqlStr As String
Public msgText As String

Private Sub cmdCancel_Click()
Unload Me

End Sub

Private Sub cmdOK_Click()
Dim rs As ADODB.Recordset
Dim i As Integer
Dim j As Integer

'如果选择的是查询全部,进行下面的处理
If optchoice(0).Value Then
    sqlStr = "select * from studentInfo"
End If

'选择的是按班级查询
If optchoice(1).Value Then
    sqlStr = "select * from studentInfo where class_no='" & cboClass.Text & "'"
End If

'选择的是按学号查询
If optchoice(2).Value Then
    If txtNo.Text = "" Then
      MsgBox "请输入要查询的学号信息!!"
      Exit Sub
    Else
      sqlStr = "select * from studentInfo where stu_no='" & txtNo.Text & "'"
    End If
End If
'选择的是按姓名查询
If optchoice(3).Value Then
    If txtName.Text = "" Then
      MsgBox "请输入要查询的学生姓名!!"
      Exit Sub
    Else
        sqlStr = "select * from studentInfo where name='" & txtName.Text & "'"
    End If
End If

Set rs = ExecuteSQL(sqlStr, msgText)

If rs.RecordCount = 0 Then

    MsgBox "没有查找满足条件的数据！", vbExclamation, "提示"
    fgStudent.Clear
   
Else
    fgStudent.Rows = rs.RecordCount + 1
    
    fgStudent.Cols = 9
    
    'Print fgStudent.Rows
    
    '设定行高
    For i = 0 To fgStudent.Rows - 1
       fgStudent.RowHeight(i) = 280
    Next i
    
    '设定列的属性
    fgStudent.Row = 0
    
    For i = 0 To fgStudent.Cols - 1
       fgStudent.Col = i  '指定当前列为第i列
       fgStudent.FixedAlignment(i) = 4  '每列内容居中显示
       Select Case i
           Case 0
              fgStudent.ColWidth(i) = 620  '设定列宽
              fgStudent.Text = "序号"
           Case 1
              fgStudent.ColWidth(i) = 920  '设定列宽
              fgStudent.Text = "学号"
           Case 2
              fgStudent.ColWidth(i) = 1000  '设定列宽
              fgStudent.Text = "姓名"
           Case 3
              fgStudent.ColWidth(i) = 700  '设定列宽
              fgStudent.Text = "性别"
           Case 4
              fgStudent.ColWidth(i) = 700  '设定列宽
              fgStudent.Text = "班级"
           Case 5
              fgStudent.ColWidth(i) = 1000  '设定列宽
              fgStudent.Text = "出生日期"
           Case 6
              fgStudent.ColWidth(i) = 700  '设定列宽
              fgStudent.Text = "电话"
           Case 7
              fgStudent.ColWidth(i) = 700  '设定列宽
              fgStudent.Text = "地址"
           Case 8
              fgStudent.ColWidth(i) = 1000  '设定列宽
              fgStudent.Text = "备注"
        End Select
           
    Next i
       
       
    'rs.MoveFirst
    
    i = 1
    
    While (Not rs.EOF)
    
       fgStudent.Row = i
       For j = 0 To fgStudent.Cols - 1
       
        fgStudent.Col = j '设置当前为列为第j列
        fgStudent.CellAlignment = 4  '每列内容居中显示
    
        
        Select Case j
            Case 0
               fgStudent.Text = "" & i
            Case 1
               fgStudent.Text = rs.Fields("stu_no")
            Case 2
               fgStudent.Text = rs.Fields("name")
            Case 3
               fgStudent.Text = rs.Fields("sex")
            Case 4
               fgStudent.Text = rs.Fields("class_no")
            Case 5
               fgStudent.Text = rs.Fields("birthdate")
            Case 6
               fgStudent.Text = rs.Fields("telno")
            Case 7
               fgStudent.Text = rs.Fields("address")
            Case 8
               fgStudent.Text = rs.Fields("memo")
        End Select
      Next j
    
        'Print rs.Fields("bookid"), rs.Fields("bookname")
        rs.MoveNext
        i = i + 1
    Wend
    fgStudent.Visible = True
    frmQueryStudent.Height = 5280

End If

rs.Close
End Sub

Private Sub Form_Load()

'窗体居中显示
Me.Top = (Screen.Height - Me.Height) \ 2
Me.Left = (Screen.Width - Me.Width) \ 2

initClass
End Sub

Sub initClass()
Dim rstClass As ADODB.Recordset

    '从数据库中读取所有班级并添加到组合列表框中
    '方便录入时进行选择
    sqlStr = "select className from classInfo"
    Set rstClass = ExecuteSQL(sqlStr, msgText)
    cboClass.Clear
    
    If Not rstClass.EOF Then
        
            Do While Not rstClass.EOF
                cboClass.AddItem Trim(rstClass.Fields(0))
                rstClass.MoveNext
            Loop
            cboClass.ListIndex = 0
        
    Else
        MsgBox "无班级记录,请添加班级！", vbOKOnly + vbExclamation, "警告"
        
        Exit Sub
    End If
    rstClass.Close

End Sub