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技术文档 > VB文档 > 窗体界面
给Listview做个背景
发表日期:2003-12-09 00:00:00作者: 出处:  

Private Sub Command1_Click()

  lvList.GridLines = Not lvList.GridLines

  SetBackColor lvList, vbRed, vbWhite

End Sub

Private Sub Form_Load()

Dim i As Long, lvItem As ListItem

  For i = 1 To 450

    Set lvItem = lvList.ListItems.Add(, , "演示 " & i)

    If i Mod 2 = 0 Then lvItem.Checked = True Else lvItem.Checked = False

  Next i

  

  SetBackColor lvList, picBoard, vbRed, vbGreen

End Sub

Private Function SetBackColor(lvList As ListView, picBoard As PictureBox, CheckColor As ColorConstants, unCheckColor As ColorConstants)

Dim iWidth As Single, iHeight As Single, tHeight As Single, lMatch As Single

Dim i As Long

  With picBoard

    .AutoRedraw = True

    .BackColor = lvList.BackColor

    .Cls

    .Visible = False

    .ScaleMode = vbTwips

    .Width = lvList.Width + 100

    .Height = lvList.ListItems(1).Height * (lvList.ListItems.Count + 1)

    With .Font

      .Size = lvList.Font.Size + 2.75

      .Bold = lvList.Font.Bold

      .Charset = lvList.Font.Charset

      .Italic = lvList.Font.Italic

      .Name = lvList.Font.Name

      .Strikethrough = lvList.Font.Strikethrough

      .Underline = lvList.Font.Underline

      .Weight = lvList.Font.Weight

    End With

    

    iWidth = .Width

    For i = 1 To lvList.ListItems.Count

      If i = 1 Then lMatch = lvList.ListItems(i).Top - lvList.ListItems(i).Height

      tHeight = lvList.ListItems(i).Top - lvList.ListItems(i).Height - lMatch

      iHeight = lvList.ListItems(i).Height

      If lvList.ListItems(i).Checked Then

        picBoard.Line (0, tHeight)-(iWidth, tHeight + iHeight), CheckColor, BF

      Else

        picBoard.Line (0, tHeight)-(iWidth, tHeight + iHeight), unCheckColor, BF

      End If

    Next

  End With

  lvList.Picture = picBoard.Image

End Function

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