Mehrfachauswahl in einem Listenfeld zulassenAllow Multiple Selections in a List Box

The following example uses the MultiSelect and Selected properties to demonstrate how the user can select one or more items in a ListBox.The following example uses the MultiSelect and Selected properties to demonstrate how the user can select one or more items in a ListBox. The user specifies a selection method by choosing an option button and then selects an item(s) from the ListBox.The user specifies a selection method by choosing an option button and then selects an item(s) from the ListBox. Der Benutzer kann die ausgewählten Elemente in einem zweiten ListBox -SteuerelementAnzeigen, indem er auf die Befehlsschaltfläche klickt.The user can display the selected items in a second ListBox by clicking the CommandButton.

To use this example, copy this sample code to the Script Editor of a form.To use this example, copy this sample code to the Script Editor of a form. To run the code you need to open the form so the Open event will activate.To run the code you need to open the form so the Open event will activate. Make sure that the form contains:Make sure that the form contains:

  • Two ListBox controls named ListBox1 and ListBox2.Two ListBox controls named ListBox1 and ListBox2.

  • Eine Befehlsschaltfläche ( CommandButton ) mit der Bezeichnung "CommandButton1".A CommandButton named CommandButton1.

  • Drei Optionsfeld-Steuerelemente ( OptionButton ) mit der Bezeichnung "OptionButton1" bis "OptionButton3".Three OptionButton controls named OptionButton1 through OptionButton3.

Sub CommandButton1_Click() 
 Set ListBox1 = Item.GetInspector.ModifiedFormPages("P.2").Controls("ListBox1") 
 Set ListBox2 = Item.GetInspector.ModifiedFormPages("P.2").Controls("ListBox2") 
 ListBox2.Clear 
 
 For i = 0 To 9 
 If ListBox1.Selected(i) = True Then 
 ListBox2.AddItem ListBox1.List(i) 
 End If 
 Next 
 
End Sub 
 
Sub OptionButton1_Click() 
 Set ListBox1 = Item.GetInspector.ModifiedFormPages("P.2").Controls("ListBox1") 
 ListBox1.MultiSelect = 0 '0=fmMultiSelectSingle 
End Sub 
 
Sub OptionButton2_Click() 
 Set ListBox1 = Item.GetInspector.ModifiedFormPages("P.2").Controls("ListBox1") 
 ListBox1.MultiSelect = 1 '1=fmMultiSelectMulti 
End Sub 
 
Sub OptionButton3_Click() 
 Set ListBox1 = Item.GetInspector.ModifiedFormPages("P.2").Controls("ListBox1") 
 ListBox1.MultiSelect = 2 '2=fmMultiSelectExtended 
End Sub 
 
Sub Item_Open() 
 Set ListBox1 = Item.GetInspector.ModifiedFormPages("P.2").Controls("ListBox1") 
 Set OptionButton1 = Item.GetInspector.ModifiedFormPages("P.2").Controls("OptionButton1") 
 Set OptionButton2 = Item.GetInspector.ModifiedFormPages("P.2").Controls("OptionButton2") 
 Set OptionButton3 = Item.GetInspector.ModifiedFormPages("P.2").Controls("OptionButton3") 
 Set CommandButton1 = Item.GetInspector.ModifiedFormPages("P.2").Controls("CommandButton1") 
 
 For i = 0 To 9 
 ListBox1.AddItem "Choice " & (ListBox1.ListCount + 1) 
 Next 
 
 OptionButton1.Caption = "Single Selection" 
 ListBox1.MultiSelect = 0 '0=fmMultiSelectSingle 
 OptionButton1.Value = True 
 
 OptionButton2.Caption = "Multiple Selection" 
 OptionButton3.Caption = "Extended Selection" 
 
 CommandButton1.Caption = "Show selections" 
 CommandButton1.AutoSize = True 
End Sub

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