ListBox.Selected Property (Access)
You can use the Selected property in Visual Basic to determine if an item in a list box is selected. Read/write Long.
Syntax
식 .Selected(lRow)
식 A variable that represents a ListBox object.
Parameters
Name |
Required/Optional |
Data Type |
Description |
|---|---|---|---|
lRow |
필수 |
Long |
The item in the list box. The first item is represented by a zero (0), the second by a one (1), and so on. |
Remarks
The Selected property is a zero-based array that contains the selected state of each item in a list box.
Setting |
Description |
|---|---|
True |
The list box item is selected. |
False |
The list box item isn't selected. |
This property is available only at run time.
When a list box control's MultiSelect property is set to None, only one item can have its Selected property set to True. When a list box control's MultiSelect property is set to Simple or Extended, any or all of the items can have their Selected property set to True. A multiple-selection list box bound to a field will always have a Value property equal to Null. You use the Selected property or the ItemsSelected collection to retrieve information about which items are selected.
You can use the Selected property to select items in a list box by using Visual Basic. For example, the following expression selects the fifth item in the list:
Me!Listbox.Selected(4) = True
Example
The following example uses the Selected property to move selected items in the lstSource list box to the lstDestination list box. The lstDestination list box's RowSourceType property is set to Value List and the control's RowSource property is constructed from all the selected items in the lstSource control. The lstSource list box's MultiSelect property is set to Extended. The CopySelected( ) procedure is called from the cmdCopyItem command button.
Private Sub cmdCopyItem_Click()
CopySelected Me
End Sub
Public Sub CopySelected(ByRef frm As Form)
Dim ctlSource As Control
Dim ctlDest As Control
Dim strItems As String
Dim intCurrentRow As Integer
Set ctlSource = frm!lstSource
Set ctlDest = frm!lstDestination
For intCurrentRow = 0 To ctlSource.ListCount - 1
If ctlSource.Selected(intCurrentRow) Then
strItems = strItems & ctlSource.Column(0, _
intCurrentRow) & ";"
End If
Next intCurrentRow
' Reset destination control's RowSource property.
ctlDest.RowSource = ""
ctlDest.RowSource = strItems
Set ctlSource = Nothing
Set ctlDest = Nothing
End Sub