7453
社区成员
- 主页
请教！！关于treeview和listview之间拖动问题？
我想把listview中的选项拖到treeview某个节点下，同时将数据库中的数据也添加，应该如何实现？
请各位指点一下，谢谢
请各位指点一下，谢谢
...全文
请发表友善的回复…
发表回复
cool_sky 2003-12-23
没有人帮忙吗？？：（
自己顶一下
自己顶一下
cool_sky 2003-12-23
谢谢lihonggen0
基本功能实现，还想请教一个问题，就是拖动时整个listview一起拖动，可不可以不显示整个listview框，只显示拖动项？
基本功能实现，还想请教一个问题，就是拖动时整个listview一起拖动，可不可以不显示整个listview框，只显示拖动项？
arvid_gs 2003-12-23
这里面的换一下就可以:
Private Sub ListView1_MouseMove(Button As Integer, Shift As Integer, x As Single, y As Single)
If Button = vbLeftButton Then
ListView1.DragIcon = ListView1.SelectedItem.CreateDragImage
ListView1.Drag vbBeginDrag
End If
End Sub
Private Sub ListView1_MouseMove(Button As Integer, Shift As Integer, x As Single, y As Single)
If Button = vbLeftButton Then
ListView1.DragIcon = ListView1.SelectedItem.CreateDragImage
ListView1.Drag vbBeginDrag
End If
End Sub
lihonggen0 2003-12-18
Option Explicit
Private Sub Form_Load()
TreeView1.Nodes.Add , , "aa", "aa"
TreeView1.Nodes.Add , , "bb", "bb"
ListView1.ListItems.Add , , "cc"
ListView1.ListItems.Add , , "dd"
ListView1.OLEDragMode = ccOLEDragAutomatic
ListView1.LabelEdit = lvwManual
End Sub
Private Sub ListView1_MouseMove(Button As Integer, Shift As Integer, x As Single, y As Single)
If Button = vbLeftButton Then
ListView1.DragIcon = ListView1.SelectedItem.CreateDragImage
ListView1.Drag vbBeginDrag
End If
End Sub
Private Sub TreeView1_DragDrop(Source As Control, x As Single, y As Single)
If Not TreeView1.DropHighlight Is Nothing Then
TreeView1.Nodes.Add TreeView1.DropHighlight.Key, tvwChild, GetNextKey() & ListView1.SelectedItem.Text, ListView1.SelectedItem.Text
TreeView1.DropHighlight.Expanded = True
End If
End Sub
Private Sub TreeView1_DragOver(Source As Control, x As Single, y As Single, State As Integer)
Set TreeView1.DropHighlight = TreeView1.HitTest(x, y)
End Sub
Private Function GetNextKey() As String
On Error GoTo MyErr
Dim sNewKey As String
Dim iHold As Integer
Dim i As Integer
On Error GoTo MyErr
iHold = Val(TreeView1.Nodes(1).Key)
For i = 1 To TreeView1.Nodes.Count
If Val(TreeView1.Nodes(i).Key) > iHold Then
iHold = Val(TreeView1.Nodes(i).Key)
End If
Next
iHold = iHold + 1
sNewKey = CStr(iHold) & "_"
GetNextKey = sNewKey
Exit Function
MyErr:
GetNextKey = "1_"
End Function
Private Sub Form_Load()
TreeView1.Nodes.Add , , "aa", "aa"
TreeView1.Nodes.Add , , "bb", "bb"
ListView1.ListItems.Add , , "cc"
ListView1.ListItems.Add , , "dd"
ListView1.OLEDragMode = ccOLEDragAutomatic
ListView1.LabelEdit = lvwManual
End Sub
Private Sub ListView1_MouseMove(Button As Integer, Shift As Integer, x As Single, y As Single)
If Button = vbLeftButton Then
ListView1.DragIcon = ListView1.SelectedItem.CreateDragImage
ListView1.Drag vbBeginDrag
End If
End Sub
Private Sub TreeView1_DragDrop(Source As Control, x As Single, y As Single)
If Not TreeView1.DropHighlight Is Nothing Then
TreeView1.Nodes.Add TreeView1.DropHighlight.Key, tvwChild, GetNextKey() & ListView1.SelectedItem.Text, ListView1.SelectedItem.Text
TreeView1.DropHighlight.Expanded = True
End If
End Sub
Private Sub TreeView1_DragOver(Source As Control, x As Single, y As Single, State As Integer)
Set TreeView1.DropHighlight = TreeView1.HitTest(x, y)
End Sub
Private Function GetNextKey() As String
On Error GoTo MyErr
Dim sNewKey As String
Dim iHold As Integer
Dim i As Integer
On Error GoTo MyErr
iHold = Val(TreeView1.Nodes(1).Key)
For i = 1 To TreeView1.Nodes.Count
If Val(TreeView1.Nodes(i).Key) > iHold Then
iHold = Val(TreeView1.Nodes(i).Key)
End If
Next
iHold = iHold + 1
sNewKey = CStr(iHold) & "_"
GetNextKey = sNewKey
Exit Function
MyErr:
GetNextKey = "1_"
End Function
cool_sky 2003-12-18
呵呵，我的意思就是怎么实现这个功能？
设想是在listview的mousedown选中某项，在treeview的dragdrop添加这项
将listview的dragmode设为自动，但拖动时无法看到选中某项，我想实现，在listview中，鼠标选中，则高亮显示，拖动这项，而不是整个listview拖动
请各位提提意见
设想是在listview的mousedown选中某项，在treeview的dragdrop添加这项
将listview的dragmode设为自动，但拖动时无法看到选中某项，我想实现，在listview中，鼠标选中，则高亮显示，拖动这项，而不是整个listview拖动
请各位提提意见
VCSQLVB 2003-12-17
选择listview时，将要添加的内容，新增到treeview，再把其他的加到数据库就行了。