frmlistcategory.frm

数据库课程设计

VERSION 5.00
Object = "{5E9E78A0-531B-11CF-91F6-C2863C385E30}#1.0#0"; "Msflxgrd.ocx"
Begin VB.Form frmListCategory 
   Caption         =   "类别列表"
   ClientHeight    =   2745
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   5205
   LinkTopic       =   "Form1"
   ScaleHeight     =   2745
   ScaleWidth      =   5205
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton cmdCancel 
      Caption         =   "返回(&C)"
      Height          =   375
      Left            =   1800
      TabIndex        =   2
      Top             =   2280
      Width           =   1335
   End
   Begin MSFlexGridLib.MSFlexGrid fgCategory 
      Height          =   1695
      Left            =   120
      TabIndex        =   1
      Top             =   480
      Width           =   4935
      _ExtentX        =   8705
      _ExtentY        =   2990
      _Version        =   393216
   End
   Begin VB.Label Label1 
      Caption         =   "影碟类别清单"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   9.75
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   1920
      TabIndex        =   0
      Top             =   120
      Width           =   1215
   End
End
Attribute VB_Name = "frmListCategory"
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 Form_Load()

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

  getAllCategories
End Sub

Sub getAllCategories()
    Dim rs As ADODB.Recordset
    Dim i As Integer
    Dim j As Integer
    
    sqlStr = "select * from categories"
    
    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"
        fgCategory.Rows = 1
       
    Else
        
        fgCategory.Rows = rs.RecordCount + 1
        
        fgCategory.Cols = 3
        
        
        '设定行高
        For i = 0 To fgCategory.Rows - 1
           fgCategory.RowHeight(i) = 280
        Next i
        
        '设定列的属性
        fgCategory.Row = 0
        
        For i = 0 To fgCategory.Cols - 1
           fgCategory.Col = i  '指定当前列为第i列
           fgCategory.FixedAlignment(i) = 4  '每列内容居中显示
           Select Case i
               Case 0
                  fgCategory.ColWidth(i) = 600  '设定列宽
                  fgCategory.Text = "编号"
               Case 1
                  fgCategory.ColWidth(i) = 1200  '设定列宽
                  fgCategory.Text = "类别名称"
               Case 2
                  fgCategory.ColWidth(i) = 3200  '设定列宽
                  fgCategory.Text = "类别描述"
            End Select
               
        Next i
           
           
        'rs.MoveFirst
        
        i = 1
        
        While (Not rs.EOF)
        
           fgCategory.Row = i
           For j = 0 To fgCategory.Cols - 1
           
            fgCategory.Col = j '设置当前为列为第j列
            fgCategory.CellAlignment = 4  '每列内容居中显示
        
            
            Select Case j
               Case 0
                  fgCategory.Text = rs.Fields("no")
               Case 1
                  fgCategory.Text = rs.Fields("name")
               Case 2
                  fgCategory.Text = rs.Fields("description")
            End Select
          Next j
        
            rs.MoveNext
            i = i + 1
        Wend
    
    End If
    
    rs.Close

End Sub