用vb.net来进行货物的分类的二级菜单的SQL语句怎么写?
select t.* ,substr(t.goods_code,-2) from codegoods t where substr(t.goods_code,0,2)='02' order by substr(t.goods_code,-2)
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这样就可以啦。用SUBSTR就可以实现这个功能
如何给vb工具条添加多级菜单
右键点窗口 用菜单编辑器添加
添加后
VB Form1.frm 用记事本打开能看到
Begin VB.Menu a
Caption = "312"
Begin VB.Menu b
Caption = "13131"
Begin VB.Menu c
Caption = "1"
End
Begin VB.Menu d
Caption = "2"
End
End
End
End
VB.net如何动态创建ContextMenuStrip控件,并写入三个菜单选项,每个选项菜
动态生成的控件: Private Sub UserControl1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load Dim myPicture = New System.Windows.Forms.PictureBox() Me.Panel3.Controls.Add(myPicture) myPicture.Size = New System.Drawing.Size(115, 160) myPicture.TabStop = False myPicture.Name = "p" myPicture.Cursor = Cursors.Hand AddHandler myPicture.Click, AddressOf mypic_Click '添加事件 End Sub 处理事件的过程: Private Sub mypic_Click() 'ByVal id As String Dim bookInfo As New BookInfo bookInfo.Show() Me.Parent.Enabled = Fals
名称栏目:vb.net多级菜单 vb菜单子菜单
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