如何将值从文本框传递到 class 中的 public 属性？

Question

我需要将用户输入文本框的代码传递给 class 中的 Public 属性。这是我的代码。

Form2.vb代码

Public Class Form2
Dim class2A As part2Class = New part2Class()
Dim class2B As part2BClass = New part2BClass()

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

    Dim a As Integer = CType(TextBox1.Text, Integer)
    Dim b As Integer = CType(TextBox1.Text, Integer)

    part2Class._Num1 = a
    part2Class._Num2 = b


End Sub

这是我在 part2Class.vb

中的代码

Public Class part2Class

    Public Property _Num1
    Public Property _Num2
    Public Overridable Function Calculate() As Integer
        Return _Num1 + _Num2
    End Function

End Class

我收到一条错误消息 "Reference to a non-shared member requires an object reference." 如何将文本框的值传递给 public 属性值？

谢谢！

Answer 1

您需要先创建一个 class 的实例，然后才能访问它的成员：

Dim objpart2Class as part2Class = new part2Class()
objpart2Class._Num1 = a
objpart2Class._Num2 = b

如何将值从文本框传递到 class 中的 public 属性？

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