关于TreeView控件的问题~以及实时错误'3265'

[舒克的灰机]

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想用TreeView控件实现查询~可以展开子节点~(图书类别,下面有三个子类)
之前看了几个相关文章~但是还是对代码着块不太懂 ~
下面是自己弄的~但是一直在报错~ VB实时错误'3265'(当时看一篇文章说的是在出错的地方加上On Error Resume Next,但是加上这个后子节点不能显示相应数据~)


下面是主要代码~


Private Sub Form_Load()
Dim strSQL As String

'设置TreeView1属性
TreeView1.LineStyle = 0 '在兄弟节点和父节点之间显示线
'树状外观包含全部元素
'建立名称为"图书类别"的父节点
Set nodx = TreeView1.Nodes.Add(, , "图书类别", "图书类别")

'打开数据库
DBCn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + App.Path + "\Data\BookShop.mdb;Persist Security

Info=False"
DBCn.Open

strSQL = "select * from Cate"
DBRec.Open strSQL, DBCn, adOpenDynamic, adLockOptimistic '打开Cate表
If DBRec.EOF Then Exit Sub '如果数据库Cate表为空，则退出当前窗体
DBRec.MoveFirst

intX = 1 'strX数组下标
'添加商品类型的子节点
Do While DBRec.EOF = False
strX(intX) = DBRec.Fields("分类名称")
Set nodx = TreeView1.Nodes.Add("图书类别", tvwChild, "Ware" & intX, DBRec.Fields("分类编号") & strX(intX))
intX = intX + 1
' -------------------------这点缺点东西,高手帮忙补上------------------------
DBRec.MoveNext
Loop
DBRec.Close '关闭Cate表
DBCn.Close '关闭数据库

TreeView1.Nodes(1).Expanded = True '默认展开子节点
'调用初始列表
ms_db ("图书类别")

End Sub

[舒克的灰机]

全部代码如下

Dim DBCn  As New ADODB.Connection
Dim DBRec  As New ADODB.Recordset   '打开Cate表
Dim myConn As ADODB.Connection
Dim myRs As ADODB.Recordset         '打开Book表
Dim nodx As Node
Dim intX As Integer
Dim intY As Integer
Dim intZ As Integer
Dim intU As Integer
Dim bolTF As Integer
Dim strX(1 To 200) As String
Dim strY(1 To 200) As String
Dim str As String

'主要代码，但是很不成熟 - -

Private Sub Form_Load()
    Dim strSQL As String
    
    '设置TreeView1属性
    TreeView1.LineStyle = 0            '在兄弟节点和父节点之间显示线
    '树状外观包含全部元素
    '建立名称为"图书类别"的父节点
    Set nodx = TreeView1.Nodes.Add(, , "图书类别", "图书类别")
    
    '打开数据库
    DBCn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + App.Path + "\Data\BookShop.mdb;Persist Security Info=False"
    DBCn.Open
    
    strSQL = "select * from Cate"
    DBRec.Open strSQL, DBCn, adOpenDynamic, adLockOptimistic    '打开Cate表
    If DBRec.EOF Then Exit Sub '如果数据库Cate表为空，则退出当前窗体
    DBRec.MoveFirst
       
    intX = 1    'strX数组下标
    '添加商品类型的子节点
    Do While DBRec.EOF = False
    strX(intX) = DBRec.Fields("分类名称")
    Set nodx = TreeView1.Nodes.Add("图书类别", tvwChild, "Ware" & intX, DBRec.Fields("分类编号") & strX(intX))
    intX = intX + 1
    
    DBRec.MoveNext
    Loop

    DBRec.Close     '关闭Cate表
    DBCn.Close   '关闭数据库
    
    TreeView1.Nodes(1).Expanded = True '默认展开子节点
    '调用初始列表
    ms_db ("图书类别")
    
End Sub
Private Sub TreeView1_NodeClick(ByVal Node As MSComctlLib.Node) 'Treeview1_NodeClick事件
    str = Node.Text
    ms_db (str)     '触发单击事件并通过调用ms_db函数显示相应的列表
End Sub

Function ms_db(strss As String) As Boolean
    
    Dim mystr As String
    Dim introw As Integer
    Dim inthigh As Integer
    
    Set myConn = New ADODB.Connection
    Set myRs = New ADODB.Recordset
    myConn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + App.Path + "\Data\BookShop.mdb;Persist Security Info=False"
    myConn.Open
    mystr = "select * from Book"
    myRs.Open mystr, myConn, adOpenStatic, adLockReadOnly
    myRs.MoveFirst
    
    
    With MSFlexGrid1
        
        .RowHeight(0) = 500
        .ColWidth(0) = 300
        .ColWidth(1) = 1200
        .ColWidth(2) = 3000
        .ColWidth(3) = 1000
        .ColWidth(4) = 1500
        .ColWidth(5) = 1500
        .ColWidth(6) = 900
        .ColWidth(7) = 900
    
        MSFlexGrid1.TextMatrix(0, 1) = "图书编号"
        MSFlexGrid1.TextMatrix(0, 2) = "图书名称"
        MSFlexGrid1.TextMatrix(0, 3) = "图书类型"
        MSFlexGrid1.TextMatrix(0, 4) = "作者"
        MSFlexGrid1.TextMatrix(0, 5) = "出版社"
        MSFlexGrid1.TextMatrix(0, 6) = "价格"
        MSFlexGrid1.TextMatrix(0, 7) = "数量"
    
    End With
    
    Select Case strss
        Case "10计算机"
            MSFlexGrid1.Clear
            introw = 1
            MSFlexGrid1.Rows = 42
            For inthigh = 1 To MSFlexGrid1.Rows - 1
                MSFlexGrid1.RowHeight(inthigh) = 300
            Next
            bolTF = ms_db1(introw, "日化类")
        
        Exit Function
        
        Case "11数学"
            introw = 1
            MSFlexGrid1.Rows = 50
            For inthigh = 1 To MSFlexGrid1.Rows - 1
            MSFlexGrid1.RowHeight(inthigh) = 300
            Next
            bolTF = ms_db1(introw, "数学")
        
        Exit Function
        
        Case "12文学"
            MSFlexGrid1.Clear
            introw = 1
            MSFlexGrid1.Rows = 70
            For inthigh = 1 To MSFlexGrid1.Rows - 1
            MSFlexGrid1.RowHeight(inthigh) = 300
            Next
            bolTF = ms_db1(introw, "文学")
            
            Exit Function
            
        Case "图书类别"
            introw = 1
            MSFlexGrid1.Rows = 155
            For inthigh = 1 To MSFlexGrid1.Rows - 1
            MSFlexGrid1.RowHeight(inthigh) = 300
            Next
            Do While myRs.EOF = False
            
            MSFlexGrid1.TextMatrix(introw, 1) = myRs.Fields("图书编号").Value
            MSFlexGrid1.TextMatrix(introw, 2) = myRs.Fields("图书名称").Value
            MSFlexGrid1.TextMatrix(introw, 3) = myRs.Fields("图书类型").Value
            MSFlexGrid1.TextMatrix(introw, 4) = myRs.Fields("作者").Value
            MSFlexGrid1.TextMatrix(introw, 5) = myRs.Fields("出版社").Value
            MSFlexGrid1.TextMatrix(introw, 6) = myRs.Fields("价格").Value
            MSFlexGrid1.TextMatrix(introw, 7) = myRs.Fields("数量").Value
        
            myRs.MoveNext
            introw = introw + 1
            
            Loop
            myRs.MoveFirst
            Exit Function
        End Select
    ms_db = True
    
End Function

Function ms_db1(introw As Integer, str As String) As Boolean
    Do While myRs.EOF = False
        
   
       ' On Error Resume Next

        If (myRs.Fields("分类编号").Value = str) = True Then
        
        MSFlexGrid1.TextMatrix(introw, 1) = myRs.Fields("图书编号").Value
        MSFlexGrid1.TextMatrix(introw, 2) = myRs.Fields("图书名称").Value
        MSFlexGrid1.TextMatrix(introw, 3) = myRs.Fields("图书类型").Value
        MSFlexGrid1.TextMatrix(introw, 4) = myRs.Fields("作者").Value
        MSFlexGrid1.TextMatrix(introw, 5) = myRs.Fields("出版社").Value
        MSFlexGrid1.TextMatrix(introw, 6) = myRs.Fields("价格").Value
        MSFlexGrid1.TextMatrix(introw, 7) = myRs.Fields("数量").Value
        introw = introw + 1
        End If
        
        myRs.MoveNext
        
        If introw > MSFlexGrid1.Rows Then
        Exit Do
        End If
    Loop
    myRs.MoveFirst
    
    With MSFlexGrid1
    
    .RowHeight(0) = 500
    .ColWidth(0) = 300
    .ColWidth(1) = 1200
    .ColWidth(2) = 3000
    .ColWidth(3) = 1000
    .ColWidth(4) = 1500
    .ColWidth(5) = 1500
    .ColWidth(6) = 900
    .ColWidth(7) = 900
    
    MSFlexGrid1.TextMatrix(0, 1) = "图书编号"
    MSFlexGrid1.TextMatrix(0, 2) = "图书名称"
    MSFlexGrid1.TextMatrix(0, 3) = "图书类型"
    MSFlexGrid1.TextMatrix(0, 4) = "作者"
    MSFlexGrid1.TextMatrix(0, 5) = "出版社"
    MSFlexGrid1.TextMatrix(0, 6) = "价格"
    MSFlexGrid1.TextMatrix(0, 7) = "数量"

    End With
End Function

[生命密码]

错误出在哪行 楼主得标出来啊 注意提问方式 这么长的代码很少人会挨着看的

[舒克的灰机]

intX = 1 'strX数组下标
'添加商品类型的子节点
Do While DBRec.EOF = False
strX(intX) = DBRec.Fields("分类名称")
Set nodx = TreeView1.Nodes.Add("图书类别", tvwChild, "Ware" & intX, DBRec.Fields("分类编号") & strX(intX))
intX = intX + 1
' -------------------------这点缺点东西,高手帮忙补上------------------------
DBRec.MoveNext
Loop
DBRec.Close '关闭Cate表
DBCn.Close '关闭数据库

就是因为这点缺行代码~所以导致后面

If (myRs.Fields("分类编号").Value = str) = True Then 出现3265错误

希望朋友来改正~