frmopen.frm

vb编程+从基础到实践光盘代码

VERSION 5.00
Object = "{F9043C88-F6F2-101A-A3C9-08002B2F49FB}#1.2#0"; "COMDLG32.OCX"
Begin VB.Form frmOpen 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "打开网址或文件"
   ClientHeight    =   1710
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   5640
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   1710
   ScaleWidth      =   5640
   ShowInTaskbar   =   0   'False
   StartUpPosition =   3  '窗口缺省
   Begin MSComDlg.CommonDialog CommDlg 
      Left            =   270
      Top             =   1185
      _ExtentX        =   847
      _ExtentY        =   847
      _Version        =   393216
   End
   Begin VB.CommandButton cmdBrowse 
      Caption         =   "浏览"
      Height          =   345
      Left            =   4035
      TabIndex        =   4
      Top             =   1215
      Width           =   1275
   End
   Begin VB.CommandButton cmdCancel 
      Caption         =   "取消"
      Height          =   345
      Left            =   2505
      TabIndex        =   3
      Top             =   1215
      Width           =   1275
   End
   Begin VB.CommandButton cmdOK 
      Caption         =   "确定"
      Height          =   345
      Left            =   990
      TabIndex        =   2
      Top             =   1215
      Width           =   1275
   End
   Begin VB.ComboBox Combo1 
      Height          =   300
      ItemData        =   "frmOpen.frx":0000
      Left            =   1005
      List            =   "frmOpen.frx":0002
      TabIndex        =   0
      Top             =   645
      Width           =   4245
   End
   Begin VB.Label Label2 
      Caption         =   "地址："
      Height          =   255
      Left            =   210
      TabIndex        =   5
      Top             =   690
      Width           =   720
   End
   Begin VB.Label Label1 
      Caption         =   "键入要打开的文档或文件夹的Internet地址："
      Height          =   315
      Left            =   885
      TabIndex        =   1
      Top             =   135
      Width           =   3990
   End
End
Attribute VB_Name = "frmOpen"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub cmdBrowse_Click()
'打开CommonDialog，浏览本地计算机的文件
CommDlg.DialogTitle = "选择要打开的文件"
CommDlg.Filter = "Html文件（*.html）|*.html|文本文件（*.txt）|*.txt|所有文件（*.*）|*.*"
CommDlg.ShowOpen
If CommDlg.FileName <> "" Then
    Combo1.AddItem CommDlg.FileName, 0
End If
Combo1.Text = Combo1.List(0)
If Combo1.ListCount > 10 Then
    Combo1.RemoveItem 9
End If
End Sub

Private Sub cmdCancel_Click()
Unload Me
End Sub

Private Sub cmdOK_Click()
Dim exsitPos
If Combo1.Text <> "" Then
    exsitPos = ExsitInAdd(Combo1.Text)
    If exsitPos = -1 Then
        frmBrowser.cboAddress.AddItem Combo1.Text, 0
        frmBrowser.cboAddress.Text = Combo1.Text
        Unload Me
        frmBrowser.brwWebBrowser.Navigate frmBrowser.cboAddress.Text
    Else
        frmBrowser.cboAddress.Text = frmBrowser.cboAddress.List(exsitPos)
        Unload Me
        frmBrowser.brwWebBrowser.Navigate frmBrowser.cboAddress.Text
    End If
Else
    MsgBox "请键入文件或文件夹的Internet地址!", vbCritical
End If
End Sub
Function ExsitInAdd(strAdd As String)
'判断选择的文件或地址在主窗体的地址栏存在
'如果存在，函数的返回值为地址在地址栏中相应的位置
'否则返回值为-1
Dim i
For i = 0 To frmBrowser.cboAddress.ListCount - 1
    If strAdd = frmBrowser.cboAddress.List(i) Then
        ExsitInAdd = i
        Exit Function
    End If
Next i
ExsitInAdd = -1
End Function