摘自 jjkk168(老加班的人) ( ) 信誉:112
文件一,Form1.frm
加入一个Listview,两个Imagelist,一个文本框
代码如下: Option Explicit '''' '''' Copyright ?1997-1999 Brad Martinez, http://www.mvps.org '''' '''' Demonstrates how to in place do SubItem editing in the VB ListView.
Private m_hwndLV As Long '''' ListView1.hWnd Private m_hwndTB As Long '''' TextBox1.hWnd Private m_iItem As Long '''' ListItem.Index whose SubItem is being edited Private m_iSubItem As Long '''' zero based index of ListView1.ListItems(m_iItem).SubItem being edited ''''
Private Sub Form_Load() Dim i As Long Dim item As ListItem '''' Text1.Appearance = ccFlat '''' ComctlLib enum value Text1.Visible = False m_hwndTB = Text1.hWnd '''' Initialize the ImageLists With ImageList1 .ImageHeight = 32 .ImageWidth = 32 .ListImages.Add Picture:=Icon End With With ImageList2 .ImageHeight = 16 .ImageWidth = 16 .ListImages.Add Picture:=Icon End With '''' Initialize the ListView With ListView1 '''' .LabelEdit = lvwManual .HideSelection = False .Icons = ImageList1 .SmallIcons = ImageList2 m_hwndLV = .hWnd For i = 1 To 4 .ColumnHeaders.Add Text:="column" & i Next For i = 0 To &H3F Set item = .ListItems.Add(, , "item" & i, 1, 1) item.SubItems(1) = i * 10 item.SubItems(2) = i * 100 item.SubItems(3) = i * 1000 Next End With End Sub
Private Sub Form_Resize() '''' ListView1.Move 0, 0, ScaleWidth, ScaleHeight End Sub
Private Sub ListView1_DblClick() Dim lvhti As LVHITTESTINFO Dim rc As RECT Dim li As ListItem '''' If a left button double-click... (change to suit) If (GetKeyState(vbKeyLButton) And &H8000) Then '''' If a ListView SubItem is double clicked... Call GetCursorPos(lvhti.pt) Call ScreenToClient(m_hwndLV, lvhti.pt) If (ListView_SubItemHitTest(m_hwndLV, lvhti) <> LVI_NOITEM) Then If lvhti.iSubItem Then '''' Get the SubItem''''s label (and icon) rect. If ListView_GetSubItemRect(m_hwndLV, lvhti.iItem, lvhti.iSubItem, LVIR_LABEL, rc) Then '''' Either set the ListView as the TextBox parent window in order to '''' have the TextBox Move method use ListView client coords, or just '''' map the ListView client coords to the TextBox''''s paent Form '''' Call SetParent(m_hwndTB, m_hwndLV) Call MapWindowPoints(m_hwndLV, hWnd, rc, 2) Text1.Move (rc.Left + 4) * Screen.TwipsPerPixelX, _ rc.Top * Screen.TwipsPerPixelY, _ (rc.Right - rc.Left) * Screen.TwipsPerPixelX, _ (rc.Bottom - rc.Top) * Screen.TwipsPerPixelY '''' Save the one-based index of the ListItem and the zero-based index '''' of the SubItem(if the ListView is sorted via the API, then ListItem.Index '''' will be different than lvhti.iItem +1...) m_iItem = lvhti.iItem + 1 m_iSubItem = lvhti.iSubItem '''' Put the SubItem''''s text in the TextBox, save the SubItem''''s text, '''' and clear the SubItem''''s text. Text1 = ListView1.ListItems(m_iItem).SubItems(m_iSubItem) Text1.Tag = Text1 ListView1.ListItems(m_iItem).SubItems(m_iSubItem) = "" '''' Make the TextBox the topmost Form control, make the it visible, select '''' its text, give it the focus, and subclass it. Text1.ZOrder 0 Text1.Visible = True Text1.SelStart = 0 Text1.SelLength = Len(Text1) Text1.SetFocus Call SubClass(m_hwndTB, AddressOf WndProc) End If '''' ListView_GetSubItemRect End If '''' lvhti.iSubItem End If '''' ListView_SubItemHitTest End If '''' GetKeyState(vbKeyLButton) End Sub
'''' Selects the ListItem whose SubItem is being edited...
Private Sub Text1_GotFocus() ListView1.ListItems(m_iItem).Selected = True End Sub
'''' If the TextBox is shown, size its width so that it''''s always a little '''' longer than the length of its Text.
Private Sub Text1_Change() If m_iItem Then Text1.Width = TextWidth(Text1) + 180 End Sub
'''' Update the SubItem text on the Enter key, cancel on the Escape Key.
Private Sub Text1_KeyPress(KeyAscii As Integer) If (KeyAscii = vbKeyReturn) Then Call HideTextBox(True) KeyAscii = 0 ElseIf (KeyAscii = vbKeyEscape) Then Call HideTextBox(False) KeyAscii = 0 End If
End Sub
Friend Sub HideTextBox(fApplyChanges As Boolean) If fApplyChanges Then ListView1.ListItems(m_iItem).SubItems(m_iSubItem) = Text1 Else ListView1.ListItems(m_iItem).SubItems(m_iSubItem) = Text1.Tag End If Call UnSubClass(m_hwndTB) Text1.Visible = False Text1 = "" '''' Call SetParent(m_hwndTB, hWnd) '''' ListView1.SetFocus m_iItem = 0 End Sub
文件二:Module1.bas
Option Explicit '''' '''' Copyright ?1997-1999 Brad Martinez, http://www.mvps.org '''' Public Type POINTAPI '''' pt X As Long Y As Long End Type
Public Type RECT '''' rct Left As Long Top As Long Right As Long Bottom As Long End Type
Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long Declare Function ScreenToClient Lib "user32" (ByVal hWnd As Long, lpPoint As POINTAPI) As Long Declare Function GetKeyState Lib "user32" (ByVal nVirtKey As KeyCodeConstants) As Integer
Declare Function SetParent Lib "user32" (ByVal hWndChild As Long, ByVal hWndNewParent As Long) As Long Declare Function MapWindowPoints Lib "user32" (ByVal hwndFrom As Long, ByVal hwndTo As Long, lppt As Any, ByVal cPoints As Long) As Long
Declare Function SendMessage Lib "user32" Alias "SendMessageA" _ (ByVal hWnd As Long, _ ByVal wMsg As Long, _ ByVal [1] [2] 下一页 [VB.NET程序]VB编辑ListView的SubItem
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