Develop Reference

Automapper override values which are not in source

Hi have a problem with auomapper where i try to use the Automapper.Mapper(src, dest) without loosing the values in the dest after doing the mapping.
I have a class which has a list of objects like below
public class UpdateShipmentDetailDto
{
public bool IsDocument { get; set; }
public List<UpdateItemDetailDto> ItemDetails { get; set; } = new();
}
which i want to map to
public class SCS_OUT_Manifest
{
public Guid ManifestId { get; set; }
public ICollection<SCS_OUT_ManifestItem> SCS_OUT_ManifestItems { get; set; } = new List<SCS_OUT_ManifestItem>();
}
The UpdateItemDetailDto class looks like this
public class UpdateItemDetailDto
{
public Guid ItemId { get; set; }
public string ItemDescription { get; set; }
public int Qty { get; set; }
public Guid UnitsId { get; set; }
public decimal ItemValue { get; set; }
}
And the SCS_OUT_ManifestItem class looke like
public class SCS_OUT_ManifestItem
{
public Guid ItemId { get; set; }
public Guid ManifestId { get; set; }
public string ItemDescription { get; set; }
public int Qty { get; set; }
public Guid UnitsId { get; set; }
public decimal ItemValue { get; set; }
}
Im performing a maaping like below, which map from ItemDetails (which is a list) to SCS_OUT_ManifestItems (which is also a ICollection).
_mapper.Map(updateShipmentDetailDto.ItemDetails, manifest.SCS_OUT_ManifestItems);
The problem after mapping is done the properties which in the destination collection are set to the default values.
for example the ManifestId inthe SCS_OUT_ManifestItem manifest.SCS_OUT_ManifestItems which is not in updateShipmentDetailDto.ItemDetails is set to its default Guid value 00000000-0000-0000-0000-000000000000.
But if i run this in a loop like below it works.
foreach (var item in manifest.SCS_OUT_ManifestItems)
{
_mapper.Map(updateShipmentDetailDto.ItemDetails.Single(s => s.ItemId == item.ItemId), item);
}
Please help! thanks in advance

Try map your lists and your itens and use the same name ÏtemDetails" in both lists.
var config = new MapperConfiguration(cfg =>
{
cfg.CreateMap<UpdateItemDetailDto, SCS_OUT_ManifestItem>();
cfg.CreateMap<UpdateShipmentDetailDto, SCS_OUT_Manifest>();
});
var _mapper = config.CreateMapper();
var updateShipmentDetailDto = new UpdateShipmentDetailDto();
var updateItemDetailDto = new UpdateItemDetailDto();
var manifest = new SCS_OUT_Manifest();
updateItemDetailDto.ItemId = Guid.NewGuid();
updateItemDetailDto.UnitsId = Guid.NewGuid();
manifest.ManifestId = Guid.NewGuid();
updateItemDetailDto.ItemDescription = "test";
updateItemDetailDto.Qty = 10;
updateItemDetailDto.ItemValue = 25.50M;
updateShipmentDetailDto.ItemDetails = new List<UpdateItemDetailDto>();
updateShipmentDetailDto.ItemDetails.Add(updateItemDetailDto);
_mapper.Map(updateShipmentDetailDto.ItemDetails, manifest.ItemDetails);
Console.WriteLine($"DTO Guid: {updateShipmentDetailDto.ItemDetails[0].ItemId}, Desc: {updateShipmentDetailDto.ItemDetails[0].ItemDescription}");
foreach (var item in manifest.ItemDetails)
{
Console.WriteLine($"Guid: {item.ItemId}, Desc: {item.ItemDescription}");
}
Console.WriteLine($"Guid Manifest: {manifest.ManifestId}");

Loop through 4 object lists & add their data in a ListView C# Xamarin.Forms

I am working on a Xamarin.Forms Project and I am at a dead-end of sorts. My issue is that I want to display user transactions which I pull from a server, in a listview, however I need four different pull requests to get all the data which means I have four different objects lists which I grouped by the transaction number as you can see in this screenshot:
The key transaction number can be seen and if you expand you'll see the other data within each transaction
Here is the code where I group the deserialised json lists with the common key:
var t = JsonConvert.DeserializeObject<List<trans_mod>>(transactions);
var l = JsonConvert.DeserializeObject<List<loc_mod>>(loc);
var d = JsonConvert.DeserializeObject<List<disc_mod>>(disc);
var it = JsonConvert.DeserializeObject<List<item_mod>>(itm);
var q = it.AsQueryable().GroupBy(g => g.trans).ToList();
var q2= d.AsQueryable().GroupBy(g => g.trans).ToList();
var q3 = l.AsQueryable().GroupBy(g => g.trans).ToList();
var q4 = t.AsQueryable().GroupBy(g => g.position).ToList();
Object Models for each list
public class loc_mod
{
[DataMember]
public string location { get; set; }
[JsonProperty(PropertyName = "#modify_stamp")]
public string stamp { get; set; }
[JsonProperty(PropertyName = "$trans")]
public string trans { get; set; }
}
public class disc_mod
{
[DataMember]
public string discount { get; set; }
[JsonProperty(PropertyName = "#modify_stamp")]
public string stamp { get; set; }
[JsonProperty(PropertyName = "$trans")]
public string trans { get; set; }
}
public class item_mod
{
[JsonProperty(PropertyName = "item.price")]
public string price { get; set; }
[JsonProperty(PropertyName = "item.name")]
public string name { get; set; }
[JsonProperty(PropertyName = "#modify_stamp")]
public string stamp { get; set; }
[JsonProperty(PropertyName = "$trans")]
public string trans { get; set; }
}
public class trans_mod
{
[DataMember]
public string refer { get; set; }
[DataMember]
public string date { get; set; }
[DataMember]
public string time { get; set; }
[DataMember]
public int points { get; set; }
[DataMember]
public string _total { get; set; }
[JsonProperty(PropertyName = "$$position")]
public string position { get; set; }
[JsonProperty(PropertyName = "#modify_stamp")]
public string stamp { get; set; }
[JsonProperty(PropertyName = "$trans")]
public string trans { get; set; }
}
public class itms
{
public string price { get; set; }
public string name { get; set; }
public DateTime stamp { get; set; }
[JsonProperty(PropertyName = "$trans")]
public string trans { get; set; }
}
What I want to do is to loop through all four lists and add the data from each list in the listview but I can't think of a way I can do that.
Listview Add() code Example:
Transactions.Add(new Transaction
{
Details = "Date: " + ti[i].date + " | Time: " + ti[i].time + " |
Reference: " + ti[i].refer,
Isvisible = false, Items= ti[i].item, Total = ti[i].total, Discount
= ti[i].discount
});
Sorry if this is a bit confusing, it's confusing for me as well as I am a relative beginner. Any help is welcome!

Define an Interface that your item classes all implement.
That interface has a method that returns whatever you need for listview.
public Interface IHasTransaction
{
Transaction GetTransaction();
}
public class loc_mod : IHasTransaction
{
...
public Transaction GetTransaction()
{
// Use fields of this class to create a Transaction.
return new Transaction(...);
}
}
public class disc_mod : IHasTransaction
{
...
}
If you want, you can make a list that has a mixture of these:
public List<IHasTransaction> models = new List<IHasTransaction>();
models.Add(new loc_mod(...));
models.Add(new disc_mod(...));
Given any of these items
IHasTransaction model
You can easily get the corresponding Transaction:
model.GetTransaction()
OR
var lm = new loc_mod(...);
lm.GetTransaction()

Convert DataTable to a nested object using LINQ

I have a stored proc returning a datatable using a stored procedure. I am able to convert the it to an object using the following code
outgoingPaymentData.AsEnumerable().Select(x => new OutgoingPaymentApprovalDetails() { });
Here is my OutgoingPaymentApprovalDetails class
public class OutgoingPaymentApprovalDetails
{
public int OriginatorId { get; set; }
public string Name { get; set; }
public string DocumentId { get; set; }
public string DebtorName { get; set; }
public string Currency { get; set; }
public double Amount { get; set; }
public string Description { get; set; }
public string DebitAccountNo { get; set; }
public string CreditAccountNo { get; set; }
}
Now, instead of a flat list, I need to add heirarchy, to select this one object to 3 objects.
Classes as under:
public class OriginatorDetails
{
public int OriginatorId { get; set; }
public string Name { get; set; }
public List<DocumentDetails> DocumentDetails { get; set; }
}
public class DocumentDetails
{
public string DocumentId { get; set; }
public List<TransactionDetails> TransactionDetails { get; set; }
}
public class TransactionDetails
{
public string Amount { get; set; }
public string DebitAccountNo { get; set; }
public string CreditAccountNo { get; set; }
}
Basically, All Documents of a particular Originator have to be in the list of DocumentDetails and all TransactionDetails of a particular document have to be in that list.
One way is to create a dictionary and add stuff in it and finally create an object. I was wondering if there was a more abbreviated and efficient way to do something like this.
TIA

You can do the grouping of retrieved records of OutgoingPaymentApprovalDetails using Linq to create the nested object of OriginatorDetails collection.
see below code
var originalDetails = inputs.GroupBy(g => g.OriginatorId)
.Select(g => new OriginatorDetails()
{
OriginatorId = g.Key,
Name = g.First().Name,
DocumentDetails = g.GroupBy(d => d.DocumentId)
.Select(d => new DocumentDetails()
{
DocumentId = d.Key,
TransactionDetails = d.Select(t => new TransactionDetails()
{
DebitAccountNo = t.DebitAccountNo,
CreditAccountNo = t.CreditAccountNo,
Amount = t.Amount.ToString()
}).ToList()
})
.ToList()
});
Check the created https://dotnetfiddle.net/FCA7Qc to demostrate your scenario.

Try this code:
Basically you need to group 2 times, first time by OriginatorId and Name and then by DocumentId like this:
var result = list.GroupBy(c => new {c.OriginatorId, c.Name})
.Select(g => new OriginatorDetails()
{
Name = g.Key.Name,
OriginatorId = g.Key.OriginatorId,
DocumentDetails = g
.GroupBy(dd => dd.DocumentId)
.Select(dd => new DocumentDetails()
{
DocumentId = dd.Key,
TransactionDetails = dd.ToList()
.Select(td => new TransactionDetails()
{
Amount = td.Amount.ToString(),
CreditAccountNo = td.CreditAccountNo,
DebitAccountNo = td.DebitAccountNo
}).ToList()
}).ToList()
}).ToList();

Query not reconizing custom properties

I Have the following query but its not allowing me to select the properties of my custom class for some reason.
This is my class here:
public class PersonalDetails
{
public string LineType { get; set; }
public string EnquirerTitle { get; set; }
public string ForeName { get; set; }
public string Surname { get; set; }
public int Age { get; set; }
public DateTime Dob { get; set; }
public string MaritalStatus { get; set; }
public string HomePhone { get; set; }
public string MobilePhone { get; set; }
public string Email { get; set; }
public string Address { get; set; }
public string Employment { get; set; }
public string Occupation { get; set; }
}
And here I want to use a query to access the data my end goal is to pass this object to a csv selrilizer which I have created to produce a csv file in a custom format.
IQueryable<tblapertureNetAppointment> _personadetails;
var personalDetails = from _appointments in _dal.apertureNetEntities.tblapertureNetAppointments
.AsEnumerable()
.Select(x => new PersonalDetails { x.LineType its not allowing me to find line type})
.ToList();

Try this way -
var personalDetails = (from _appointments in _dal.apertureNetEntities.tblapertureNetAppointments.AsEnumerable()
select new PersonalDetails {
LineType = _appointments.LineType,
EnquirerTitle = _appointments.EnquirerTitle,
ForeName = _appointments.ForeName,
Surname = _appointments.Surname,
// .......
}).ToList();
Update
Using LinqToCsv you can write csv file from your linq object. LinqToCsv is available as nuget package.
From Package Manager Console -
Install-Package LinqToCsv
Now you can write your linq object to csv file this way -
CsvFileDescription outputFileDescription = new CsvFileDescription
{
SeparatorChar = '\t', // tab delimited
FirstLineHasColumnNames = true,
FileCultureName = "nl-NL" // use formats used in The Netherlands
};
CsvContext cc = new CsvContext();
string fileName = String.Format(#"{0}products2.csv", Server.MapPath("/csvFiles"));
cc.Write(personalDetails,fileName,outputFileDescription);

Find a particular element in List<> and fetch whole data of that row if element is found

I have a List<> which contains collection of objects after getting this list of BillSheetDetail I want to find that billWorkDetails[].details_classification =="xyz" and if it is found then fetch all the data of that particular array index of billWorksDetails[] and store it in other array to display.
How can I do this? I am new to C#
public class BillSheetDetail
{
public DateTime creation_date { get; set; }
public string customer_name { get; set; }
public string subject { get; set; }
public decimal tax_rate { get; set; }
public int total_amount { get; set; }
public string special_instruction { get; set; }
public string comment { get; set; }
public List<BillWorkDetail> billWorkDetails { get; set; }
}
[Serializable]
public class BillWorkDetail
{
public string product_name { get; set; }
public decimal quantity { get; set; }
public string unit { get; set; }
public int unit_cost { get; set; }
public int amount { get; set; }
public string remarks { get; set; }
public int row_no { get; set; }
public string details_classifiction { get; set; }
}

You have to combine Enumerable.Where and Any.
List<BillWorkDetail>[] matchingSheetDetails = billSheetDetailList
.Where(sd => sd.billWorkDetails.Any(d => d.details_classifiction == "xyz"))
.Select(sd => sd.billWorkDetails)
.ToArray();
This creates an array of all matching lists. Since your question is unclear, if you actually only want an array of the matching BillWorkDetail objects:
BillWorkDetail[] matchingBillWorkDetails = billSheetDetailList
.SelectMany(sd => sd.billWorkDetails.Where(d => d.details_classifiction == "xyz"))
.ToArray();
SelectMany selects all matching BillWorkDetail out of the List<BillSheetDetail>. Note that both approaches lose the reference to the BillSheetDetail instance from where it came from.

The solution is using the Where clause:
mySheetDetail.billWorkDetails.Where(x => x.details_classification == "xyz").ToList();
Here is a demonstration of the code that is working well: http://ideone.com/s2cUaR

Try this linq method
List<BillWorkDetail> myBillWorkDetails = new Lis<BillWorkDetail>();
myBillWorkDetails = myBillSheetDetail.billWorkDetails.Where(b => b.classifiction == "xyz").ToList();
This code retrieve all BillWorkDetail with classification xyz.