Vb.net 如何声明全局列表对象
我想在子过程上面声明一个列表,并能够添加/修改它 我想要这样的东西:Vb.net 如何声明全局列表对象,vb.net,list,Vb.net,List,我想在子过程上面声明一个列表,并能够添加/修改它 我想要这样的东西: Public lisst As List(Of Decimal) Private Sub angajati_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load lisst.Add(1) lisst.Add(2) End Sub 当我运行上述示例时,会出现如下错误: Obj
Public lisst As List(Of Decimal)
Private Sub angajati_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
lisst.Add(1)
lisst.Add(2)
End Sub
当我运行上述示例时,会出现如下错误:
Object reference not set to an instance of an object.
如何解决此问题?您尚未初始化列表(请注意:
Public lisst As New List(Of Decimal)
Private Sub angajati_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
lisst.Add(1)
lisst.Add(2)
End Sub