please tell me how can i call only the get method of this property in another method .
for example
public List<EmployeeData> LOP
{
get
{
if (_lop == null)
{
_lop = new List<DTPackage>();
}
return _lop;
}
set
{
_lop = value;
}
}
i want to call only get method of this property.
public List<EmployeeData> LOP
{
get
{
if (_lop == null)
{
_lop = new List<DTPackage>();
}
return _lop;
}
set
{
_lop = value;
}
}
var lop = LOP; // here POP get will be called
LOP = myEmployeeList //here POP set will be called
You can make set to private to avoid access from other classes or remove set for readonly
These are all compilable variants of .Net properties:
// Shorthand
public string MyProperty1 { get; set; }
public string MyProperty2 { get; private set; }
public string MyProperty3 { get; }
// With backing field
private string _myProperty4;
private string _myProperty5;
private readonly string _myProperty6;
public string MyProperty4
{
get { return _myProperty4; }
set { _myProperty4 = value; }
}
public string MyProperty5
{
get { return _myProperty5; }
private set { _myProperty5 = value; }
}
public string MyProperty6
{
get { return _myProperty6; }
}
MSDN
Usage:
string myString = MyProperty4; // Calls get on MyProperty4
MyProperty4 = "Hello World" // Calls set on MyProperty4
MyProperty6 = "Hello World" // Will not be compilable
Related
I have a customer object class:
public class customerObject
{
private string _address1;
private string _address2;
private string _address3;
private string _category;
private string _country;
private string _county;
private string _custcode;
private string _fullname;
private string _int_rep_hou;
private string _int_rep_key;
private double _lat;
private double _lng;
private string _postcode;
private string _rep_code;
private string _telephone;
public customerObject()
{
}
public string Address1
{
get { return _address1; }
set { _address1 = value; }
}
public string Address2
{
get
{
return _address2;
}
set { _address2 = value; }
}
public string Address3 { get { return _address3; } set { _address3 = value; } }
public string Category
{
get { return _category; }
set { _category = value; }
}
public string Country { get { return _country; } set { _country = value; } }
public string County { get { return _county; } set { _county = value; } }
public string Custcode
{
get { return _custcode; }
set { _custcode = value; }
}
public string Fullname
{
get { return _fullname; }
set { _fullname = value; }
}
public string Int_rep_hou
{
get { return _int_rep_hou; }
set { _int_rep_hou = value; }
}
public string Int_rep_key
{
get { return _int_rep_key; }
set { _int_rep_key = value; }
}
public double Lat { get { return _lat; } set { _lat = value; } }
public double Lng { get { return _lng; } set { _lng = value; } }
public string Postcode { get { return _postcode; } set { _postcode = value; } }
public string Rep_code
{
get { return _rep_code; }
set { Rep_code = value; }
}
public string Telephone { get { return _telephone; } set { _telephone = value; }
}
}
I have a CustomCollections class
public class CustomerCollection
{
public List<customerObject> Customers { get; set; }
}
My method that loops through dt rows and converts to a customer object
public List<Valueobjects.CustomerCollection> dolist(DataTable temptablename)
{
//Create Collection Object
Valueobjects.CustomerCollection Collection = new Valueobjects.CustomerCollection();
foreach (DataRow row in temptablename.Rows)
{
//Create Customer Object
Valueobjects.customerObject Customer = new Valueobjects.customerObject();
//set values of customer object
Customer.Rep_code = "";
Customer.Int_rep_key = "";
Customer.Int_rep_hou = "";
Customer.Fullname = row["Fullname"].ToString().Trim();
Customer.Custcode = row["Custcode"].ToString().Trim();
Customer.Category = row["Category"].ToString().Trim();
Customer.Address1 = row["Address1"].ToString().Trim();
Customer.Address2 = row["Address2"].ToString().Trim();
Customer.Address3 = row["Address3"].ToString().Trim();
Customer.Postcode = row["Postcode"].ToString().Trim();
Customer.Country = row["Country"].ToString().Trim();
Customer.Telephone = row["Telephone"].ToString().Trim();
Customer.Lat = Convert.ToDouble(row["Lat"]);
Customer.Lng = Convert.ToDouble(row["Lng"]);
Customer.County = row["County"].ToString().Trim();
//add to the collection (list)
Collection.Customers.Add(Customer);
}
temptablename = null;
return Collection;
}
However when I create a new Customer object and a new CustomerCollection object I am getting an error when adding the customer to the collection list.
Error:
Error 32 Cannot implicitly convert type
'Classes.Valueobjects.CustomerCollection' to
'System.Collections.Generic.List'
Your method is returning a List<CustomerCollection>:
public List<Valueobjects.CustomerCollection> dolist(DataTable temptablename)
{
//...
}
But the code is trying to return a CustomerCollection:
return Collection;
Just as the error says, these two types are different.
If a CustomerCollection is already a collection of customers, then semantically what is a List<Valueobjects.CustomerCollection>? A collection of collections? It seems like you're over-pluralizing your objects :)
There are two approaches here. Either return a CustomerCollection from the method:
public CustomerCollection dolist(DataTable temptablename)
{
//...
}
Or use a List<Customer> if you want to use generic lists as your collection containers:
public List<Customer> dolist(DataTable temptablename)
{
//...
var Collection = new List<Customer>();
//...
Collection.Add(Customer);
//...
return Collection;
}
Side note: You may want to stick to C# conventions for variable naming. As you can see from the code highlighting here on Stack Overflow, your variable names can easily be mistaken for classes/types, which can cause confusion when supporting the code.
Return a CustomerCollection instead of a List<Valueobjects.CustomerCollection>:
public Valueobjects.CustomerCollection Dolist(DataTable temptablename)
{
// ...
Your object has a list, it is not a list.
MSDN: Inheritance
I have a user control and their are many textbox on it. I add this user control to a different project and I can use it, when I write every property on UserControl. I want to set textbox fields of this user control with using a class. These are my codes:
Class:
namespace IEUserControl
{
public class IEValue
{
public string IsEmriNo { get; set; }
public string Nevi { get; set; }
public string BrutKg { get; set; }
public string NetKg { get; set; }
}
}
User Control:
namespace IsEmriUserControl
{
public partial class UC_IsEmri : UserControl
{
public UC_IsEmri()
{
InitializeComponent();
}
//private IsEmriValue _isEmri;
//public IsEmriValue isEmri
//{
// get
// {
// return _isEmri;
// }
// set
// {
// _isEmri = value;
// }
//}
public string IsEmriNo
{
get { return txtIsEmriNo.Text; }
set { txtIsEmriNo.Text = value; }
}
public string Nevi
{
get { return txtNevi.Text; }
set { txtNevi.Text = value; }
}
public string BrutKg
{
get { return txtBrutKg.Text; }
set { txtBrutKg.Text = value; }
}
public string NetKg
{
get { return txtNetKg.Text; }
set { txtNetKg.Text = value; }
}
}
}
When I use properties, I can set textbox values. However I want to set my textbox values with my Class. Can anyone give me an example setting textbox values with using class? Thank you.
Make a method/property like this
public IEValue IE_Value
{
get
{
return new IEValue() {
IsEmrino = txtIsEmriNo.Text,
Nevi = txtNevi.Text,
BrutKg = txtBrutKg.Text,
NetKg = txtNetKg.Text
};
}
set
{
txtIsEmriNo.Text = value.IsEmrino;
txtNevi.Text = value.Nevi;
txtBrutKg.Text = value.BrutKg;
txtNetKg.Text = value.NetKg;
}
}
How can I pass an entire defined class through a WCF service? I have the class defined on both the service and client side. I keep getting an error:
Best overloaded method match has some invalid arguments.
The whole class was copied from the client-side to the service-side.
Client side calling:
TransferProxy.PutTransferOnService(Transfer);
Defined on service:
[OperationContract]
bool PutTransferOnService(TypeTransfer Transfer);
I don't want to access individual items on the class from the client, I just want to move the WHOLE populated object through and do processing on the server side.
[DataContract]
public class TypeTransfer
{
private string userID;
private string transferNum;
private DateTime effectiveDate;
private int unitCount;
private int skuCount;
private string reason;
private string localStatus;
private string destStatus;
private string carrier;
private string sourceStore;
private string destinationStore;
private string inSeal;
private string outSeal;
[DataMember]
private List<TypeSOQ> correspondingSOQ = new List<TypeSOQ>();
[DataMember]
private List<TypeProductList> ProductList = new List<TypeProductList>();
public TypeTransfer() { }
// Function adds single item to transfer object
public void AddItem(int ProductID, string SKU, string PrimarySKU, string SCC, string ProductDescription, int TransferQty)
{
ProductList.Add(new TypeProductList
{
productID = ProductID,
sku = SKU,
primaryUPC = PrimarySKU,
scc = SCC,
description = ProductDescription,
transferQty = TransferQty
});
}
// Add SOQ to transfer object (can support multiple SOQ's)
public void AddSOQ(TypeSOQ soq)
{
correspondingSOQ.Add(soq);
}
// Function returns number of skus in Product List
public int GetSKUTotal()
{
return ProductList.Count();
}
// Function returns total number of items in transfer
public int GetItemTotal()
{
int itemtotal = 0;
for (int i = 0; i < ProductList.Count(); i++)
{
itemtotal += ProductList[i].transferQty;
}
return itemtotal;
}
// Return entire SOQ list
public List<TypeSOQ> GetSOQs()
{
return correspondingSOQ;
}
// Returns full product list in transfer object
public List<TypeProductList> GetProductList()
{
return ProductList;
}
[DataMember]
public string UserID
{
get { return userID; }
set { userID = value; }
}
[DataMember]
public string TransferNum
{
get { return transferNum; }
set { transferNum = value; }
}
[DataMember]
public DateTime EffectiveDate
{
get { return effectiveDate; }
set { effectiveDate = value; }
}
[DataMember]
public int UnitCount
{
get { return unitCount; }
set { unitCount = value; }
}
[DataMember]
public string Reason
{
get { return reason; }
set { reason = value; }
}
[DataMember]
public string LocalStatus
{
get { return localStatus; }
set { localStatus = value; }
}
[DataMember]
public string DestStatus
{
get { return destStatus; }
set { destStatus = value; }
}
[DataMember]
public string Carrier
{
get { return carrier; }
set { carrier = value; }
}
[DataMember]
public string SourceStore
{
get { return sourceStore; }
set { sourceStore = value; }
}
[DataMember]
public string DestStore
{
get { return destinationStore; }
set { destinationStore = value; }
}
[DataMember]
public string InSeal
{
get { return inSeal; }
set { inSeal = value; }
}
[DataMember]
public string OutSeal
{
get { return outSeal; }
set { outSeal = value; }
}
[DataMember]
public int SKUCount
{
get { return skuCount; }
set { skuCount = value; }
}
}
You said - The whole class was copied from the client-side to the service-side.
You don't need to copy your class to server side. just define your class in a separate library and give reference of that same library to both client and server.
I am new to C# and am working on classes and understanding them. My problem is I am not understanding how to create a Get to retrieve the private variable _yourname and Set to set the private variable _yourname.
namespace WindowsFormsApplication1
{
class InputClass
{
private string _yourName;
public string _banner;
public virtual void GetInfo();
public InputClass(String _banner)
{
_banner = "Enter your name";
}
}
}
Maybe I am using the wrong function to GetInfo. But I am also wondering when I have the GetInfo if in the () I should write _yourname in it.
In C# there are properties, which have the function of public getter and setter methods in other languages:
class InputClass
{
private string _yourName;
public string _banner;
public InputClass(String _banner)
{
this._banner = _banner;
}
public string YourName
{
get { return _yourName; }
set { _yourName = value; }
}
}
But you can use auto properties, if you want:
class InputClass
{
public InputClass(String _banner)
{
Banner = _banner;
}
public string YourName
{
get; set;
}
public string Banner
{
get; set;
}
}
It sounds like you are trying to provide access to the _yourName field. If so then just use a property
class InputClass {
public string YourName {
get { return _yourName; }
set { _yourName = value; }
}
...
}
Now consumers of InputClass can access it as if it were a read only field.
InputClass ic = ...;
string yourName = ic.YourName;
ic.YourName = "hello";
Note: C# provides a special syntax for simple properties like this which are just meant to be wrappers over private fields. It's named auto-implemented properties
class InputClass {
public string YourName { get; set; }
}
You can override getters and settings using the get and set keywords. For example:
class InputClass
{
private string _yourName;
private string _banner;
public YourName
{
get { return _yourName; }
set { _yourName = value; }
}
public Banner
{
get { return _banner; }
set { _banner = value; }
}
public InputClass(String banner)
{
_banner = banner;
}
}
1.) Use properties instead of members, you get a free accessor (get) and mutator (set).
public string YourName { get; set; }
public string Banner { get; set; }
2.) You can take advantage of the default constructor, and declare it on the fly.
//the old way:
InputClass myClass = new InputClass();
myClass.YourName = "Bob";
myClass.Banner = "Test Banner";
//on the fly:
InputClass myClass = new InputClass()
{
YourName = "Bob",
Banner = "Test Banner"
}
Here is the thing, I have a problem creating a new object using the remote mechanism "marshal by value".
Here is my class:
[Serializable]
internal class Empleado_MBV
{
public Empleado_MBV()
{
Id = 123456789;
Nombres = "NotEntry";
Apellidos = "NotEntry";
FechaNacimiento = DateTime.MinValue;
Direccion = "NotEntry";
Metapreferencias = "NotEntry";
}
private List<Multas> _multas;
internal List<Multas> Multas
{
get { return _multas; }
set { _multas = value; }
}
private int _id;
public int Id
{
get { return _id; }
set { _id = value; }
}
private string _nombres;
public string Nombres
{
get { return _nombres; }
set { _nombres = value; }
}
private string _apellidos;
public string Apellidos
{
get { return _apellidos; }
set { _apellidos = value; }
}
private DateTime _FecNac;
public DateTime FechaNacimiento
{
get { return _FecNac; }
set { _FecNac = value; }
}
private string _direccion;
public string Direccion
{
get { return _direccion; }
set { _direccion = value; }
}
private string _metapreferencias;
public string Metapreferencias
{
get { return _metapreferencias; }
set { _metapreferencias = value; }
}
public string _AppDomainHost
{
get { return AppDomain.CurrentDomain.FriendlyName.ToString(); }
}
}
But when I try to create an object in another "appdomain", the property "_AppDomainHost" of "Empleado" does not show the "appdomain" I had created, but show the "appdomain" by default. Some ideas?
AppDomain ad1 = AppDomain.CreateDomain("NewAppDomain");
//Crear new object in my new AD.
Empleado_MBV mbv_emp = (Empleado_MBV)ad1.CreateInstanceFromAndUnwrap("DEMO_MBV_MBR.exe", "DEMO_MBV_MBR.Empleado_MBV");
Console.WriteLine(AppDomain.CurrentDomain.FriendlyName.ToString());
Console.WriteLine("MBV : {0}",mbv_emp._AppDomainHost.ToString());
Console.ReadLine();
Result:
DEMO_MBV_MBR.vshost.exe
MBV : DEMO_MBV_MBR.vshost.exe
The result that I want:
DEMO_MBV_MBR.vshost.exe
MBV : NewAppDomain
You need to store AppDomain in Empleado_MBV's constructor.
What you are doing right now is displaying current AppDomain using its Current static property. It will return the AppDomain where current code is being executed.
Example:
private string _appDomainHost;
public string _AppDomainHost
{
get { return _appDomainHost; }
}
and in constructor:
_appDomainHost = AppDomain.CurrentDomain.FriendlyName.ToString();