我正在编写一段代码来禁用LISTBOX中选择的项目。
即我想在列表中显示该项目,但不希望用户选择它。
如下图所示。或类似链接中的图片。
在VB6中是否可能实现?
请帮忙。
尝试切换到ListView控件,然后将特定的ListItems设置为Ghosted。还有其他第三方列表或网格控件可用,但VB6控件现在越来越难找到。
祝你好运!
Option Explicit
Private Const m_ksDisabled As String = "D"
Private WithEvents m_oListView As ListView
Public Sub Initialise(ByRef the_oListView As ListView)
Set m_oListView = the_oListView
End Sub
Public Property Let ListItemEnabled(ByVal the_oListItem As ListItem, ByVal the_bEnabled As Boolean)
If Not the_oListItem Is Nothing Then
If the_bEnabled Then
the_oListItem.Tag = Empty
the_oListItem.ForeColor = vbWindowText
Else
the_oListItem.Tag = m_ksDisabled
the_oListItem.ForeColor = vbGrayText
End If
End If
End Property
Public Property Get ListItemEnabled(ByVal the_oListItem As ListItem) As Boolean
If Not the_oListItem Is Nothing Then
ListItemEnabled = (the_oListItem.Tag <> m_ksDisabled)
End If
End Property
Private Sub m_oListView_ItemClick(ByVal Item As MSComctlLib.ListItem)
If Item.Tag = m_ksDisabled Then
Set m_oListView.SelectedItem = Nothing
End If
End Sub
它应该像这样使用:
Private m_oListViewWrapper As ListViewWrapper
Private Sub Form_Load()
Set m_oListViewWrapper = New ListViewWrapper
m_oListViewWrapper.Initialise ListView
End Sub
Private Sub Command_Click()
With m_oListViewWrapper
.ListItemEnabled(ListView.SelectedItem) = Not .ListItemEnabled(ListView.SelectedItem)
End With
End Sub