vb.net - 如何使用 CodeDom 创建十进制常量？

Question

我的发电机中有这个功能。

    Private Sub AddBoundedValue(ByVal boundedValue As Object, ByVal type As CodeTypeDeclaration, ByVal numericType As Type, name As String)

        If boundedValue IsNot Nothing Then

            Dim constant As New CodeMemberField(numericType, name)
            constant.Attributes = MemberAttributes.Const Or MemberAttributes.Public
            constant.InitExpression = New CodePrimitiveExpression(Convert.ChangeType(boundedValue, numericType))
            type.Members.Add(constant)

        End If

    End Sub

如果开发人员为“​​boundedValue”参数传入小数，为“numericType”参数传入小数类型，则会生成以下代码。

Public Const DollarAmountMaximumValue As Decimal = 100000

尽管传递给 CodePrimitiveExpression 对象的构造函数的数据类型是小数，但生成的代码是一个整数，它被隐式转换并存储在一个小数变量中。有没有办法让它在数字后用“D”生成，如下所示：

Public Const DollarAmountMaximumValue As Decimal = 100000D

谢谢。

Answer 1

好吧，我对这个解决方案不满意，但除非有人有更好的解决方案，否则我将不得不采用它。

Private Sub AddBoundedValue(ByVal boundedValue As Object, ByVal type As CodeTypeDeclaration, ByVal numericType As Type, name As String)

    If boundedValue IsNot Nothing Then

        Dim constant As New CodeMemberField(numericType, name)
        constant.Attributes = MemberAttributes.Const Or MemberAttributes.Public
        If numericType Is GetType(Decimal) AndAlso [I detect if the language is VB.NET here] Then
            constant.InitExpression = New CodeSnippetExpression(boundedValue.ToString & "D")
        Else
            constant.InitExpression = New CodePrimitiveExpression(Convert.ChangeType(boundedValue, numericType))
        End If
        type.Members.Add(constant)

    End If

End Sub