可在运行 Visual Basic 代码时设置和返回某些控件属性。下列示例将文本框的 Text 属性设为“Hello”。
TextBox1.Text = "Hello"
关闭窗体时,用户输入窗体中的数据将会丢失。如果卸载窗体后返回窗体上控件的值,则获得控件的初始值而不是用户输入的值。
若要保存输入窗体中的数据,可在窗体运行时将信息保存到模块级的变量中。下列示例显示一个窗体,并在卸载窗体前用公共变量保存窗体数据。
'Code in module to declare public variables
Public strRegion As String
Public intSalesPersonID As Integer
Public blnCancelled As Boolean
'Code in form
Private Sub cmdCancel_Click()
Module1.blnCancelled = True
Unload Me
End Sub
Private Sub cmdOK_Click()
'Save data
intSalesPersonID = txtSalesPersonID.Text
strRegion = lstRegions.List(lstRegions.ListIndex)
Module1.blnCancelled = False
Unload Me
End Sub
Private Sub UserForm_Initialize()
Module1.blnCancelled = True
End Sub
'Code in module to display form
Sub LaunchSalesPersonForm()
frmSalesPeople.Show
If blnCancelled = True Then
MsgBox "Operation Cancelled!", vbExclamation
Else
MsgBox "The Salesperson's ID is: " & _
intSalesPersonID & _
"The Region is: " & strRegion
End If
End Sub