Question

我正在使用Visual Basic 2008.我正在尝试使用button将2列文本输入数据网格。

当我按下按钮时，变量和与变量相关的数据应该输入到2列datagrid中。

我使用的代码是：

Public Class Entering_the_rates
Public Class Datagrid

    Private category As String
    Public Property getcategory() As String
        Get
            Return category
        End Get
        Set(ByVal value As String)
            category = value
        End Set
    End Property

    Private price As Decimal
    Public Property getprice() As Decimal
        Get
            Return price
        End Get
        Set(ByVal value As Decimal)
            price = value
        End Set
    End Property

End Class


Private Sub Entering_the_rates_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load


End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    datagridadult() as new Datagrid (category, price) 

End Sub
End Class

这种语法是对还是错。我还需要一个关于如何调用我声明的数据网格的示例代码。请帮帮我

Answer 1

你班上需要一个构造函数：

Public Class Datagrid

Private _category As String
Public Property getcategory() As String
    Get
        Return category
    End Get
    Set(ByVal value As String)
        category = value
    End Set
End Property

Private _price As Decimal
Public Property getprice() As Decimal
    Get
        Return price
    End Get
    Set(ByVal value As Decimal)
        price = value
    End Set
End Property

Public Sub New(byval category as string, byval price as decimal)
    _category = category
    _price = price
End Sub

End Class

属性后面的私有变量也应该以下划线开头，请参见此处：http://10rem.net/articles/net-naming-conventions-and-programming-standards---best-practices这使得在构造函数中更容易分配它们。您还可以使用自动实现的属性，这些属性会自动为您创建_后面的变量（尽管它们不会在intellisense中显示）。

将数据输入数据网格

1 个答案: