如何将文本框的值从asp.net窗体带到vb.net代码后面的类

Question

我是Vb.net的新手，尝试学习如何编程，但是我停留在这个阶段。

我创建一个新的子并以1种形式声明

Public Class WebForm5
    Public Sub info()
        Dim x As String
        Dim y As String
        Dim z As String
        x = txtbookn.Text
        y = txtqua.Text.ToString
        z = txtpri.Text.ToString
    End Sub
End Class

我尝试将其传递给另一个类

Public Class Product
    Public Sub New()
        Me.Book_Name = (value for x)
        Me.UnitPrice =(value for y)
        Me.quantty=(value for z)
    End Sub
End Class

Answer 1

将其传递给构造函数

Public Class Product
   Public Sub New(x as String, y as String, z As String)
      Me.Book_Name = x
      Me.UnitPrice = y
      Me.quantty = z
  End Sub
End Class

然后，您可以在页面中将其称为

Dim MyProduct as Product = New Product(txtbookn.Text, txtqua.Text, txtpri.Text)

Answer 2

您的x，y和z变量不在New()子级的范围内。 如果希望它们可访问，则必须将它们作为参数传递，或者需要在两个类之外定义它们。 现在它们仅存在于info() 。