Develop Reference

How do I send a Object Linq sorted List as a parameter

I am trying to make my code more compromised, and use overall less, however currently I'm running into the problem of not being able to send a list of Objects sorted by linq as a parameter.
the problem is in this part of the code:
List<Afspraken> dataAfspraken = new List<Afspraken>();
public Form1()
{
InitializeComponent();
fillListsForLinq();
loadReceptionData();
}
private void fillListsForLinq()
{
dataAfspraken = data.getAfsprakenData();
//here it fills the list with Afspraken objects
}
private void loadReceptionData()
{
private void loadReceptionGrid
var receptionToFinnish =
(from AFspraken in dataAfspraken
where Afspraken.factuur_betaald == true && Afspraken.volledig_afgerond == false
join Users in dataUsers on Afspraken.gekoppelde_klant equals Users.id
select new
{
Id = Afspraken.id,
Klant = Users.gebruikersnaam,
Betaald = Afspraken.factuur_betaald,
Afgerond = Afspraken.volledig_afgerond
}).ToList();
changeDataviewReception(receptionToFinnish);
}
private void changeDataviewReception(List<Object> listData)
{
dgvReceptionData.DataSource = listData
}
the Afspraken class looks like this
public class Afspraken
{
public int id { get; set; }
public bool bevestigd { get; set; }
public DateTime datum { get; set; }
public int gekoppelde_klant { get; set; }
public int gekoppelde_monteur { get; set; }
public string benodigde_hadelingen { get; set; }
public decimal totaalprijs { get; set; }
public bool klaar { get; set; }
public bool factuur_betaald { get; set; }
public bool volledig_afgerond { get; set; }
public string opmerkingen { get; set; }
}
How do I get receptionToFinnish as a parameter into changeDataviewReception?

receptionToFinnish will be a list full of objects of an anonymous type. But your method requires a List<object>. This is now allowed since a list is not a variant type.
Say for example that you have a list of bananas and want to give it to someone that wants a list of fruits. This will not work since that other person might try to add an orange to the list of bananas.
To fix this, cast the values to object explicitly, for example:
select new
{
Id = Afspraken.id,
Klant = Users.gebruikersnaam,
Betaald = Afspraken.factuur_betaald,
Afgerond = Afspraken.volledig_afgerond
} as object

cast a response object type to a list C#

i am hitting a webservice which is returning me a object Items in which i have a collection airpricepoint. I have created similar classes items and airpricepoint i am trying to cast the lowFareSearchRsp.Items to IList collection so that i can foreach loop and access the inner collections but i am unable to loop through i cant access the collection inside of fareitems
IList collection = (IList)lowFareSearchRsp.Items;
if (collection != null)
{
foreach (var fareitems in collection)
{
items itemsobj = new items();
Document.airpricepoint airpricepointobj = new airpricepoint();
airpricepointobj.AirPricingInfo = new List<airpricinginfo>();
airpricepointobj.AirPricingResultMessage = fareitems.AirPricingResultMessage;
airpricepointobj.FeeInfo = fareitems.FeeInfo;
airpricepointobj.FareNote = fareitems.FareNote;
airpricepointobj.TaxInfo = fareitems.TaxInfo;
airpricepointobj.Key = fareitems.Key;
airpricepointobj.TotalPrice = fareitems.TotalPrice;
airpricepointobj.BasePrice = fareitems.BasePrice;
}
public class items
{
public IList<airpricepoint> AirPricePoint { get; set; }
}
public class airpricepoint
{
public IList<airpricinginfo> AirPricingInfo { get; set; }
public object AirPricingResultMessage { get; set; }
public object FeeInfo { get; set; }
public object FareNote { get; set; }
public object TaxInfo { get; set; }
public string Key { get; set; }
public string TotalPrice { get; set; }
public string BasePrice { get; set; }
}

If it's indeed a web service, then you already know the structure (format) of the data you're receiving. Usually it will be in JSON or XML format; or packaged in a contract class if it's a WCF service.
This means that you can simply de-serialize the data using any JSON or XML serialization library.

method declared as public not found

In my common.cs class I have the below declarations for a list based on a class:
public static List<edbService> edb_service;
public class edbService
{
public string ServiceID { get; set; }
public string ServiceName { get; set; }
public string ServiceDescr { get; set; }
public string ServiceInterval { get; set; }
public string ServiceStatus { get; set; }
public string ServiceUrl { get; set; }
public string SourceApplication { get; set; }
public string DestinationApplication { get; set; }
public string Function { get; set; }
public string Version { get; set; }
public string userid { get; set; }
public string credentials { get; set; }
public string orgid { get; set; }
public string orgunit { get; set; }
public string customerid { get; set; }
public string channel { get; set; }
public string ip { get; set; }
}
I have a public method to populate the list from xml data files declared like this in the same class (common.cs):
#region PublicMethods
public List<edbService> populateEDBService(string xmlDataFile)
{
try
{
XElement x = XElement.Load(global::EvryCardManagement.Properties.Settings.Default.DataPath + xmlDataFile);
// Get global settings
IEnumerable<XElement> services = from el in x.Descendants("Service")
select el;
if (services != null)
{
edb_service = new List<edbService>();
foreach (XElement srv in services)
{
edbService edbSrv = new edbService();
edbSrv.ServiceID = srv.Element("ServiceID").Value;
edbSrv.ServiceName = srv.Element("ServiceName").Value;
edbSrv.ServiceDescr = srv.Element("ServiceDescr").Value;
edbSrv.ServiceInterval = srv.Element("ServiceInterval").Value;
edbSrv.ServiceStatus = srv.Element("ServiceStatus").Value;
edbSrv.ServiceUrl = srv.Element("ServiceUrl").Value;
foreach (XElement ServiceHeader in srv.Elements("ServiceHeader"))
{
edbSrv.SourceApplication = ServiceHeader.Element("SourceApplication").Value;
edbSrv.DestinationApplication = ServiceHeader.Element("DestinationApplication").Value;
edbSrv.Function = ServiceHeader.Element("Function").Value;
edbSrv.Version = ServiceHeader.Element("Version").Value;
foreach (XElement ClientContext in ServiceHeader.Elements("ClientContext"))
{
edbSrv.userid = ClientContext.Element("userid").Value;
edbSrv.credentials = ClientContext.Element("credentials").Value;
edbSrv.orgid = ClientContext.Element("orgid").Value;
edbSrv.orgunit = ClientContext.Element("orgunit").Value;
edbSrv.customerid = ClientContext.Element("customerid").Value;
edbSrv.channel = ClientContext.Element("channel").Value;
edbSrv.ip = ClientContext.Element("ip").Value;
}
}
edb_service.Add(edbSrv);
}
}
}
catch (Exception ex)
{
/* Write to log */
Common.logBuilder("CustomerCreate : Form --> CustomerCreate <--", "Exception", Common.ActiveMQ,
ex.Message, "Exception");
/* Send email to support */
emailer.exceptionEmail(ex);
}
return edb_service;
}
but the problem is, in my calling class when I try to have a list returned from this method, it is not found - I get a compile error that an object reference is required.
I am trying to call it like this:
Common.edbService edb_service = Common.populateEDBService("CardUpdate.xml");
and I get the below error:
An object reference is required for the non-static field, method, or property 'EvryCardManagement.Common.populateEDBService(string)'
What am I doing wrong?
I would like to have a generic method that can be called from several classes (which run async after being instantiated by background workers on my form)

You can try making your method as static.
public static List<edbService> populateEDBService(string xmlDataFile)
{
//Your code here
....
}
Now you can call this method from all the other classes by using common.populateEDBService();

You need either to create the class static, or to create an object to call it.
class edbService { }
public static void Main() {
//this is error
edbService.populateEDBService("");
//this is correct
edbService s = new edbService();
s.populateEDBService("");
}
The last line in my example shows the object reference required by the compiler. The s variable here is the object reference.

Are there any missing values in your XML? The.Value property won't work if the value is missing. So if ServiceID is missing then srv.Element("ServiceID").Value; will cause an error. You can get it to return an empty string for missing values, for example, by instead using (string)srv.Element("ServiceID");

transfer DTO to ViewModel

Here is my data transfer object
public class LoadSourceDetail
{
public string LoadSourceCode { get; set; }
public string LoadSourceDesc { get; set; }
public IEnumerable<ReportingEntityDetail> ReportingEntity { get; set; }
}
public class ReportingEntityDetail
{
public string ReportingEntityCode { get; set; }
public string ReportingEntityDesc { get; set; }
}
And here is my ViewModel
public class LoadSourceViewModel
{
#region Construction
public LoadSourceViewModel ()
{
}
public LoadSourceViewModel(LoadSourceDetail data)
{
if (data != null)
{
LoadSourceCode = data.LoadSourceCode;
LoadSourceDesc = data.LoadSourceDesc;
ReportingEntity = // <-- ? not sure how to do this
};
}
#endregion
public string LoadSourceCode { get; set; }
public string LoadSourceDesc { get; set; }
public IEnumerable<ReportingEntityViewModel> ReportingEntity { get; set; }
}
public class ReportingEntityViewModel
{
public string ReportingEntityCode { get; set; }
public string ReportingEntityDesc { get; set; }
}
}
I'm not sure how to transfer the data from the LoadSourceDetail ReportingEntity to the LoadSourceViewModel ReportingEntity. I'm trying to transfer data from one IEnumerable to another IEnumerable.

I would use AutoMapper to do this:
https://github.com/AutoMapper/AutoMapper
http://automapper.org/
You can easily map collections, see https://github.com/AutoMapper/AutoMapper/wiki/Lists-and-arrays
It would look something like this:
var viewLoadSources = Mapper.Map<IEnumerable<LoadSourceDetail>, IEnumerable<LoadSourceViewModel>>(loadSources);
If you are using this in an MVC project I usually have an AutoMapper config in the App_Start that sets the configuration i.e. fields that do not match etc.

Without AutoMapper you will have to map each property one by one ,
Something like this :
LoadSourceDetail obj = FillLoadSourceDetail ();// fill from source or somewhere
// check for null before
ReportingEntity = obj.ReportingEntity
.Select(x => new ReportingEntityViewModel()
{
ReportingEntityCode = x.ReportingEntityCode,
ReportingEntityDesc x.ReportingEntityDesc
})
.ToList(); // here is 'x' is of type ReportingEntityDetail

You could point it to the same IEnumerable:
ReportingEntity = data.ReportingEntity;
If you want to make a deep copy, you could use ToList(), or ToArray():
ReportingEntity = data.ReportingEntity.ToList();
That will materialize the IEnumerable and store a snapshot in your view model.

"Value does not fall within the expected range" exception in ListView

For Windows 8 application development environment.
Code:
var deserialized = JsonConvert.DeserializeObject<RootObject>(json);
listView.ItemsSource = deserialized; // error
Data model:
public class C
{
public List<Y> programs { get; set; }
public string name { get; set; }
public int code { get; set; }
}
public class RootObject
{
public List<C> cs { get; set; }
public string date { get; set; }
}
public class Y
{
public string category { get; set; }
public string time { get; set; }
public string name { get; set; }
}
What can I do ? I don't find solution.

ItemsSource is looking for an IEnumerable, but you're providing a single object in RootObject. You'd get the same error if you create one of your RootObject instances in code and try the same assignment.
What specifically should be displaying in the list? If you simply change your code to:
listView.ItemsSource = deserialized.cs;
the listView should display your C objects.

I always have trouble figuring out how to go from the serializer output. I do have working code (windows 8 store) that I'm pasting below. It is pretty obvious what it does.
HttpResponseMessage responseGetEmailByPersonsBare =
await clientGetEmailByPersonsBare.PostAsync(UrlBase + EmailDetailGetEmailByPersonsBare, contentGetEmailByPersonsBare);
Stream myStream = await responseGetEmailByPersonsBare.Content.ReadAsStreamAsync();
var djsGetEmailByPersonsBare = new DataContractJsonSerializer(typeof(AEWebDataStructures.RootObjectEmailDetail));
var rootObjectEmailDetail = (AEWebDataStructures.RootObjectEmailDetail)djsGetEmailByPersonsBare.ReadObject(myStream);
responseGetEmailByPersonsBare.EnsureSuccessStatusCode();
returnTaskInfo.EmailDetails = rootObjectEmailDetail.Data;
returnTaskInfo.StatusReturn = AEWebDataStructures.StatusReturn.Success;