PropertyPolicy is a class that defines a collection of several fields/entities. Sometimes two separate functions are needed to build out the collection. (LoadEstateAIN and LoadAIN). I need to combine the results of both classes but have tried concat but get a cast exception. What would work here?
Public Class PropertyPolicy
Private agentfield As Entity
Private aininsuredfield() As Entity
Private billinginfofield As BillingInfo
Private cancellationdatefield As Date
Private claimsfield() As Claims
Public Property Agent As Entity
Get
Return Me.agentfield
End Get
Set(ByVal value As Entity)
Me.agentfield = value
End Set
End Property
Public Property AINInsured() As Entity()
Get
Return Me.aininsuredfield
End Get
Set(ByVal value As Entity())
Me.aininsuredfield = value
End Set
End Property
Public Property BillingInfo As BillingInfo
Get
Return Me.billinginfofield
End Get
Set(ByVal value As BillingInfo)
Me.billinginfofield = value
End Set
End Property
Public Property CancellationDate As Date
Get
Return Me.cancellationdatefield
End Get
Set(ByVal value As Date)
Me.cancellationdatefield = value
End Set
End Property
Public Property Claims() As Claims()
Get
Return Me.claimsfield
End Get
Set(ByVal value As Claims())
Me.claimsfield = value
End Set
End Property
End Class
Dim propTemp1 As New PropertyPolicy
Dim propTemp2 As New PropertyPolicy
Dim propTempComb As New PropertyPolicy
propTemp1.AINInsured = LoadEstateAIN(policyid, asofDate, lob, NINclientid, estatecompany)
propTemp2.AINInsured = LoadAIN(policyid, asofDate, lob, NINclientid, estatecompany)
propTempComb.AINInsured = propTemp1.AINInsured.Concat(propTemp2.AINInsured)
The result of Concat is not an array; it is an IEnumerable(Of T). In your case it is an IEnumerable(Of Entity). You just need to add ToArray() to the end of the Concat if you want to assign it back to an array.
propTempComb.AINInsured = propTemp1.AINInsured.Concat(propTemp2.AINInsured).ToArray()
Breaking down this line of code:
[instance3].[property] = [instance1].[property].Concat([instance2].[property])
Assigns the result of the Concat to the property, but the property is an array so you need to change the result of Concat which is an IEnumerable(Of Entity) into an array which is trivial with ToArray.
I could go further and recommend that you don't use arrays as public members, rather IEnumerable. Also, auto-properties would be a better choice for some of these Public/Public properties.
Public Class PropertyPolicy
Private aininsuredfield As Entity()
Private claimsfield As Claims()
Public Property Agent As Entity
Public Property BillingInfo As BillingInfo
Public Property CancellationDate As Date
Public Property AINInsured() As IEnumerable(Of Entity)
Get
Return aininsuredfield
End Get
Set(value As IEnumerable(Of Entity))
aininsuredfield = value.ToArray()
End Set
End Property
Public Property Claims() As IEnumerable(Of Claims)
Get
Return claimsfield
End Get
Set(value As IEnumerable(Of Claims))
claimsfield = value.ToArray()
End Set
End Property
End Class
And btw, that would cause your original code to work without ToArray()
propTempComb.AINInsured = propTemp1.AINInsured.Concat(propTemp2.AINInsured)
Public Class Products
Private zCriteria As String
Public Property Criteria As String
Get
Return zCriteria
End Get
Set(value As String)
zCriteria = value
End Set
End Property
Private zProductList As New List(Of Product)
Public Property ProductList As List(Of Product)
Get
Return zProductList
End Get
Set(value As List(Of Product))
zProductList = value
End Set
End Property
End Class
Public Class Product
Private zCriteriaList As List(Of Criterias)
Public Property CriteriaList As List(Of Criterias)
Get
Return zCriteriaList
End Get
Set(value As List(Of Criterias))
zCriteriaList = value
End Set
End Property
End Class
Public Class Criterias
Private zCrPropName As String
Public Property CrPropName As String
Get
Return zCrPropName
End Get
Set(value As String)
zCrPropName = value
End Set
End Property
Private zCritCode As String
Public Property CritCode As String
Get
Return zCritCode
End Get
Set(value As String)
zCritCode = value
End Set
End Property
Private zcrPropValue As String
Public Property crPropValue As String
Get
Return zcrPropValue
End Get
Set(value As String)
zcrPropValue = value
End Set
End Property
End Class
For Each oProducts As Products In oAssigment.ProductsList
For Each oproduct As Product In oProducts.ProductList
For Each cr As Criterias In oproduct.CriteriaList
cr.CrPropName = "Product Name" 'some object property name
cr.CritCode = "PN"
cr.crPropValue = "" ' Value of property "Product Name"
Next
Next
Next
It is all made to have different properties of some object depending on options set in text file. It is only a sample o usage.
conditions:
Criterias on applications start is same for all objects (=Product) i want to read.
Every time on start, application read options file where is defined few property names and codes (values i want get from objects). So every run can be initiated different quantity of properties to read. It means i can not have hard-coded names of properties.
Someone can advice me how to predefine "CrPropName" and "CritCode" on app start so many times how much property names defined in options and after that populate it so many times as how many objects exist from which i read these property values.
p.s. I am not very professional at coding and sorry for my language
I would like to create a array or list property with theses results:
team(1).name = "Falcons"
team(1).totalPoints = 167
team(2).name = "Jets"
team(2).totalPoints = 121
and so on....
I know how to make properties, but not as an array or list. Thanks.
There is no sub-properties in .net, but you can achieve your target by creating a List of objects of a class that having properties. try the following:
Public Class Team
Private _Name As String
Public Property Name() As String
Get
Return _Name
End Get
Set(ByVal value As String)
_Name = value
End Set
End Property
Private _TotalPoints As Integer
Public Property TotalPoints() As Integer
Get
Return _TotalPoints
End Get
Set(ByVal value As Integer)
_TotalPoints = value
End Set
End Property
End Class
Then you can create a list of objects of the class Team as follows:
Dim TeamList As New List(Of Team)
TeamList.Add(New Team() With {.Name = "Falcons", .TotalPoints = 167})
TeamList.Add(New Team() With {.Name = "Jets", .TotalPoints = 121})
So that ;
TeamList(0).Name Gives "Falcons"
TeamList(0).TotalPoints Gives 167
TeamList(1).Name Gives "Jets"
TeamList(1).TotalPoints Gives 121
I have tried the following code:
PolicyProcessRequest.BranchCode = "HeadOff"
PolicyProcessRequest.Policy.BranchCode = "HeadOff"
PolicyProcessRequest.Policy.Risks.Item(0).BranchCode = "HeadOff"
Dim dcs As DataContractSerializer = New DataContractSerializer(GetType(PureMessagingService.PolicyProcessRequestType))
Dim ms As New MemoryStream()
dcs.WriteObject(ms, PolicyProcessRequest)
Am getting the following exception on the call to WriteObject
System.Runtime.Serialization.SerializationException was caught
HResult=-2146233076 Message=Member BranchCode in type Sirius.SBO.Import.PureMessagingService.BaseRequestType cannot be serialized.
This exception is usually caused by trying to use a null value where a null value is not allowed.
The 'BranchCode' member is set to its default value (usually null or zero). The member's EmitDefault setting is 'false', indicating that the member should not be serialized.
However, the member's IsRequired setting is 'true', indicating that it must be serialized. This conflict cannot be resolved. Consider setting 'BranchCode' to a non-default value. Alternatively, you can change the EmitDefaultValue property on the DataMemberAttribute attribute to true, or changing the IsRequired property to false.
Yet I've set the 'BranchCode' property to the non default value everywhere in the request.
Public Class BaseNBQuoteRequestType
Private agentCodeField As String
Private branchCodeField As String
Private currencyCodeField As CurrencyType
Private currencyCodeFieldSpecified As Boolean
Private itemField As BasePartyType
Private policyField As BaseQuoteRiskMsgType
Private updatePartyField As Boolean
Public Property AgentCode() As String
Get
Return Me.agentCodeField
End Get
Set(ByVal value As String)
Me.agentCodeField = value
End Set
End Property
Public Property BranchCode() As String
Get
Return Me.branchCodeField
End Get
Set(ByVal value As String)
Me.branchCodeField = value
End Set
End Property
Public Property CurrencyCode() As CurrencyType
Get
Return Me.currencyCodeField
End Get
Set(ByVal value As CurrencyType)
Me.currencyCodeField = value
End Set
End Property
Public Property CurrencyCodeSpecified() As Boolean
Get
Return Me.currencyCodeFieldSpecified
End Get
Set(ByVal value As Boolean)
Me.currencyCodeFieldSpecified = value
End Set
End Property
Public Property Party() As BasePartyType
Get
Return Me.itemField
End Get
Set(ByVal value As BasePartyType)
Me.itemField = value
End Set
End Property
Public Property Policy() As BaseQuoteRiskMsgType
Get
Return Me.policyField
End Get
Set(ByVal value As BaseQuoteRiskMsgType)
Me.policyField = value
End Set
End Property
Public Property UpdateParty() As Boolean
Get
Return Me.updatePartyField
End Get
Set(ByVal value As Boolean)
Me.updatePartyField = value
End Set
End Property
End Class
I have the same problem, and it comes from the DataContractSerializer which is used to generate the code. I have other services which use the XmlSerializer with no problem.
Unfortunatly, when using Svcutil.exe or the 'Add Service Reference' feature in Visual Studio to generate client code, an appropriate serializer is automatically selected for you. If the schema is not compatible with the DataContractSerializer, the XmlSerializer is selected (source).
So, you have to manualy fix the IsRequired setting in references.cs each time you generate it.
Replace
IsRequired=true
by
IsRequired=false
in the references.cs file.
I'm trying to deserialize json returned by some directions API similar to Google Maps API. My JSON is as follows (I'm using VB.NET 2008):
jsontext =
{
"version":0.3,
"status":0,
"route_summary":
{
"total_distance":300,
"total_time":14,
"start_point":"43",
"end_point":"42"
},
"route_geometry":[[51.025421,18.647631],[51.026131,18.6471],[51.027802,18.645639]],
"route_instructions": [["Head northwest on 43",88,0,4,"88 m","NW",334.8],["Continue on 42",212,1,10,"0.2 km","NW",331.1,"C",356.3]]
}
So far I came up with the following code:
Dim js As New System.Web.Script.Serialization.JavaScriptSerializer
Dim lstTextAreas As Output_CloudMade() = js.Deserialize(Of Output_CloudMade())(jsontext)
I'm not sure how to define complex class, i.e. Output_CloudMade.
I'm trying something like:
Public Class RouteSummary
Private mTotalDist As Long
Private mTotalTime As Long
Private mStartPoint As String
Private mEndPoint As String
Public Property TotalDist() As Long
Get
Return mTotalDist
End Get
Set(ByVal value As Long)
mTotalDist = value
End Set
End Property
Public Property TotalTime() As Long
Get
Return mTotalTime
End Get
Set(ByVal value As Long)
mTotalTime = value
End Set
End Property
Public Property StartPoint() As String
Get
Return mStartPoint
End Get
Set(ByVal value As String)
mStartPoint = value
End Set
End Property
Public Property EndPoint() As String
Get
Return mEndPoint
End Get
Set(ByVal value As String)
mEndPoint = value
End Set
End Property
End Class
Public Class Output_CloudMade
Private mVersion As Double
Private mStatus As Long
Private mRSummary As RouteSummary
'Private mRGeometry As RouteGeometry
'Private mRInstructions As RouteInstructions
Public Property Version() As Double
Get
Return mVersion
End Get
Set(ByVal value As Double)
mVersion = value
End Set
End Property
Public Property Status() As Long
Get
Return mStatus
End Get
Set(ByVal value As Long)
mStatus = value
End Set
End Property
Public Property Summary() As RouteSummary
Get
Return mRSummary
End Get
Set(ByVal value As RouteSummary)
mRSummary = value
End Set
End Property
'Public Property Geometry() As String
' Get
' End Get
' Set(ByVal value As String)
' End Set
'End Property
'Public Property Instructions() As String
' Get
' End Get
' Set(ByVal value As String)
' End Set
'End Property
End Class
but it does not work. The problem is with complex properties, like route_summary. It is filled with "nothing". Other properties, like "status" or "version" are filled properly.
Any ideas, how to define class for the above JSON?
Can you share some working code for deserializing JSON in VB.NET?
Thanks,
Below is a sample Converter class that will take an incoming stream of JSON and convert to to an object you specify. I should note the below code is .Net 4.0. The JSON serializer in 4 is much easier to use. Let me know if you can't use 4 and I'll see if I can dig up a 3.5 version. Basically you need to create a class structure to map the JSON to a Class. I created the Route and RouteSummary classes for you. I left route_geometry and route_instructions as objects. You should create class definitions for each but this should get you started.
Imports System.IO
Imports System.Runtime.Serialization.Json
Imports System.Runtime.Serialization
<DataContract(Namespace:="")> _
Public Class Route
<DataMember(Name:="version")>
Public Property version As Double
<DataMember(Name:="status")>
Public Property status As Double
<DataMember(Name:="route_summary")>
Public Property route_summary As route_summary
<DataMember(Name:="route_geometry")>
Public Property route_geometry As Object()
<DataMember(Name:="route_instructions")>
Public Property route_instructions() As Object
End Class
<DataContract(Name:="route_summary", Namespace:="")> _
Public Class route_summary
<DataMember(Name:="total_distance")>
Public Property total_distance As Double
<DataMember(Name:="total_time")>
Public Property total_time As Double
<DataMember(Name:="start_point")>
Public Property start_point As Double
<DataMember(Name:="end_point")>
Public Property end_point As Double
End Class
Public Class Converter(Of t)
Public Function ReturnJSON(ByRef sreader As StreamReader) As t
If GetType(t).Equals(GetType(String)) Then
Dim result As Object = sreader.ReadToEnd.Replace("""", "")
Return result
Else
Dim ds As New DataContractJsonSerializer(GetType(t))
Dim result As t = DirectCast(ds.ReadObject(sreader.BaseStream), t)
ds = Nothing
Return result
End If
End Function
End Class
Sub Main()
Dim json As String = "{""version"":0.3, ""status"":0, ""route_summary"": { ""total_distance"":300, ""total_time"":14, ""start_point"":""43"", ""end_point"":""42"" }, ""route_geometry"":[[51.025421,18.647631],[51.026131,18.6471],[51.027802,18.645639]], ""route_instructions"": [[""Head northwest on 43"",88,0,4,""88 m"",""NW"",334.8],[""Continue on 42"",212,1,10,""0.2 km"",""NW"",331.1,""C"",356.3]]}"
Dim encoding As New System.Text.UTF8Encoding
Dim bytes() As Byte = encoding.GetBytes(json)
Using os As New MemoryStream
os.Write(bytes, 0, bytes.Length)
os.Position = 0
Using reader As New StreamReader(os)
Dim converter As New Converter(Of Route)
Dim output As Route
output = converter.ReturnJSON(reader)
'output contains data
End Using
End Using
End Sub
See this page for a detailed description of how to read the JSON data. http://www.json.org/