vb.net 类 ' 不能被索引，因为它没有默认属性
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Class ' cannot be indexed because it has no default property
提问by user3458266
I get the following error Class 'PropGenie_WebService.Branch' cannot be indexed because it has no default property.And I am not sure why. I have googled but don't get a proper explanation or fix. C# help welcome.
我收到以下错误Class 'PropGenie_WebService.Branch' cannot be indexed because it has no default property.我不知道为什么。我用谷歌搜索但没有得到正确的解释或修复。欢迎 C# 帮助。
My code in the branch.vb class:
我在 branch.vb 类中的代码：
Public Function Update() As Branch
Return Update(Me, Path) 'error at update.
End Function
And in my Base class (Resources.vb) I have:
在我的基类（Resources.vb）中，我有：
Public Shared Function Update(Of T As {Resources, New})(resource As T, path As String) As T
Dim request = CreateRequest(path & "/{id}", Method.PATCH)
request.AddUrlSegment("id", resource.Id.ToString(CultureInfo.InvariantCulture))
request.AddBody(resource)
Dim Client = CreateClient()
Dim responce = Client.Execute(Of T)(request)
If responce.StatusCode <> HttpStatusCode.OK Then
Throw New InvalidOperationException("Update Failed" & Convert.ToString(responce.StatusCode))
End If
Return responce.Data
End Function
采纳答案by Magnus
You need to specify the class in which the shared function is also, or it will try to use the Updatefunction in the object you are in.
您还需要指定共享函数所在的类，否则它会尝试Update在您所在的对象中使用该函数。
Public Function Update() As Branch
Return Resources.Update(Me, Path)
End Function
