VB.NET，使用返回类型泛型函数？(VB.NET, make a function with return type generic?)

VB.NET，使用返回类型泛型函数？(VB.NET, make a function with return type generic?)

目前我已经编写了一个反序列化XML的函数，如下所示。 如何更改它，以便每次我想要序列化另一个对象类型时都不必替换类型？ 当前对象类型是cToolConfig。 如何使此功能通用？

Public Shared Function DeserializeFromXML(ByRef strFileNameAndPath As String) As XMLhandler.XMLserialization.cToolConfig Dim deserializer As New System.Xml.Serialization.XmlSerializer(GetType(cToolConfig)) Dim srEncodingReader As IO.StreamReader = New IO.StreamReader(strFileNameAndPath, System.Text.Encoding.UTF8) Dim ThisFacility As cToolConfig ThisFacility = DirectCast(deserializer.Deserialize(srEncodingReader), cToolConfig) srEncodingReader.Close() srEncodingReader.Dispose() Return ThisFacility End Function Public Shared Function DeserializeFromXML1(ByRef strFileNameAndPath As String) As System.Collections.Generic.List(Of XMLhandler.XMLserialization.cToolConfig) Dim deserializer As New System.Xml.Serialization.XmlSerializer(GetType(System.Collections.Generic.List(Of cToolConfig))) Dim srEncodingReader As IO.StreamReader = New IO.StreamReader(strFileNameAndPath, System.Text.Encoding.UTF8) Dim FacilityList As System.Collections.Generic.List(Of cToolConfig) FacilityList = DirectCast(deserializer.Deserialize(srEncodingReader), System.Collections.Generic.List(Of cToolConfig)) srEncodingReader.Close() srEncodingReader.Dispose() Return FacilityList End Function

Currently I have written a function to deserialize XML as seen below. How do I change it so I don't have to replace the type every time I want to serialize another object type ? The current object type is cToolConfig. How do I make this function generic ?

Public Shared Function DeserializeFromXML(ByRef strFileNameAndPath As String) As XMLhandler.XMLserialization.cToolConfig Dim deserializer As New System.Xml.Serialization.XmlSerializer(GetType(cToolConfig)) Dim srEncodingReader As IO.StreamReader = New IO.StreamReader(strFileNameAndPath, System.Text.Encoding.UTF8) Dim ThisFacility As cToolConfig ThisFacility = DirectCast(deserializer.Deserialize(srEncodingReader), cToolConfig) srEncodingReader.Close() srEncodingReader.Dispose() Return ThisFacility End Function Public Shared Function DeserializeFromXML1(ByRef strFileNameAndPath As String) As System.Collections.Generic.List(Of XMLhandler.XMLserialization.cToolConfig) Dim deserializer As New System.Xml.Serialization.XmlSerializer(GetType(System.Collections.Generic.List(Of cToolConfig))) Dim srEncodingReader As IO.StreamReader = New IO.StreamReader(strFileNameAndPath, System.Text.Encoding.UTF8) Dim FacilityList As System.Collections.Generic.List(Of cToolConfig) FacilityList = DirectCast(deserializer.Deserialize(srEncodingReader), System.Collections.Generic.List(Of cToolConfig)) srEncodingReader.Close() srEncodingReader.Dispose() Return FacilityList End Function

最满意答案

你是这个意思吗？

Public Shared Function DeserializeFromXML(Of T)(ByRef strFileNameAndPath As String) As T Dim deserializer As New System.Xml.Serialization.XmlSerializer(GetType(T)) Dim srEncodingReader As IO.StreamReader = New IO.StreamReader(strFileNameAndPath, System.Text.Encoding.UTF8) Dim ThisFacility As T ThisFacility = DirectCast(deserializer.Deserialize(srEncodingReader), T) srEncodingReader.Close() srEncodingReader.Dispose() Return ThisFacility End Function Public Shared Function DeserializeFromXML1(Of T)(ByRef strFileNameAndPath As String) As System.Collections.Generic.List(Of T) Dim deserializer As New System.Xml.Serialization.XmlSerializer(GetType(System.Collections.Generic.List(Of T))) Dim srEncodingReader As IO.StreamReader = New IO.StreamReader(strFileNameAndPath, System.Text.Encoding.UTF8) Dim FacilityList As System.Collections.Generic.List(Of T) FacilityList = DirectCast(deserializer.Deserialize(srEncodingReader), System.Collections.Generic.List(Of T)) srEncodingReader.Close() srEncodingReader.Dispose() Return FacilityList End Function

请注意，您可以在T上设置约束，例如：

Public Shared Function DeserializeFromXML(Of T As Class)

甚至提出了多个约束，例如：

Public Shared Function DeserializeFromXML(Of T As {Class, New, IDisposable})

Is this what you mean?

Public Shared Function DeserializeFromXML(Of T)(ByRef strFileNameAndPath As String) As T Dim deserializer As New System.Xml.Serialization.XmlSerializer(GetType(T)) Dim srEncodingReader As IO.StreamReader = New IO.StreamReader(strFileNameAndPath, System.Text.Encoding.UTF8) Dim ThisFacility As T ThisFacility = DirectCast(deserializer.Deserialize(srEncodingReader), T) srEncodingReader.Close() srEncodingReader.Dispose() Return ThisFacility End Function Public Shared Function DeserializeFromXML1(Of T)(ByRef strFileNameAndPath As String) As System.Collections.Generic.List(Of T) Dim deserializer As New System.Xml.Serialization.XmlSerializer(GetType(System.Collections.Generic.List(Of T))) Dim srEncodingReader As IO.StreamReader = New IO.StreamReader(strFileNameAndPath, System.Text.Encoding.UTF8) Dim FacilityList As System.Collections.Generic.List(Of T) FacilityList = DirectCast(deserializer.Deserialize(srEncodingReader), System.Collections.Generic.List(Of T)) srEncodingReader.Close() srEncodingReader.Dispose() Return FacilityList End Function

Note that you can put constraints on T, such as:

Public Shared Function DeserializeFromXML(Of T As Class)

And even put multiple constraints, such as:

Public Shared Function DeserializeFromXML(Of T As {Class, New, IDisposable})