Here is what I want to be happened. I am working on a Win Forms application. I want a class to run first then store values in a different class which has a struct in it which holds a value. Now when the Form frmMainConsole loads I want it to read the values from the struct to set certain properties on the form.
Here is what I have tried:
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new frmMainConsole());
}
here is the class with the struct:
public class MyAppSetting
{
//View Setting
public bool ShowMoves { get; set; }
}
Now when the frmMainConsoleLoads which is here:
private void frmMainConsole_Load(object sender, EventArgs e)
{
CreateGroupBox();
//Set Initial Settings
MyAppSetting MyAppSetting = new ChessStrategyGame.MyAppSetting();
movesToolStripMenuItem.Checked = MyAppSetting.ShowMoves;
}
Now the class I want to use to start the application looks like this:
class StartUp
{
public static void Main()
{
MyAppSetting MyAppSetting = new MyAppSetting();
MyAppSetting.ShowMoves = true;
//On the Main Form of application
Form frmMainConsole = new frmMainConsole();
frmMainConsole.Show();
}
}
Basically I want the application to remember certain settings from the last time it was run
Related
Good day
I have code that worked on the old Pick pack and ship screen, the code would do a couple of changes on a QR code and then send it in to Acumatica.
With the new changes in Acumatica this is not possible any more.
What is the correct way to hook into the new (version 22) process barcode code?
Originally I could do this:
using WMSBase = PX.Objects.IN.WarehouseManagementSystemGraph<PX.Objects.IN.INScanReceive, PX.Objects.IN.INScanReceiveHost, PX.Objects.IN.INRegister, PX.Objects.IN.INScanReceive.Header>;
using PX.Objects;
using PX.Objects.IN;
namespace ExtScannerCode
{
public class INScanReceiveHostExtCustomPackage : PXGraphExtension<INScanReceive, INScanReceiveHost>
{
public static bool IsActive() => true;
#region Overrides ProcessItemBarcode
//ProcessItemBarcode
public delegate void ProcessItemBarcodeDelegate(string barcode);
[PXOverride]
public virtual void ProcessItemBarcode(string barcode, ProcessItemBarcodeDelegate baseMethod)
{
baseMethod?.Invoke(barcode);
}
#endregion
#region Overrides ProcessLotSerialBarcode
//ProcessLotSerialBarcode
public delegate void ProcessLotSerialBarcodeDelegate(string barcode);
[PXOverride]
public virtual void ProcessLotSerialBarcode(string barcode, ProcessLotSerialBarcodeDelegate baseMethod)
{
baseMethod?.Invoke(barcode);
}
#endregion
#region Overrides ProcessExpireDate
//ProcessLotSerialBarcode
public delegate void ProcessExpireDateDelegate(string barcode);
[PXOverride]
public virtual void ProcessExpireDate(string barcode, ProcessLotSerialBarcodeDelegate baseMethod)
{
baseMethod?.Invoke(barcode);
}
#endregion
}
[PXProtectedAccess]
public abstract class INScanReceiveHostExtProtectedAccess : PXGraphExtension<INScanReceiveHostExtCustomPackage, INScanReceive, INScanReceiveHost>
{
[PXProtectedAccess(typeof(INScanReceive))]
protected abstract void ProcessItemBarcode(string barcode);
[PXProtectedAccess(typeof(INScanReceive))]
protected abstract void ApplyState(string state);
[PXProtectedAccess(typeof(INScanReceive))]
protected abstract void ProcessLotSerialBarcode(string barcode);
}
}
With the new layout I am a bit lost, how would I hook into the new WarehouseManagementSystem? to process my barcodes
Referencing the private articles in the Acumatica Community site, you need to use an extension that has already been declared for each graph. For Pick Pack and Ship, the class definition would be
public class PickPackShipExt : PickPackShip.ScanExtension
{
}
From there, you would override the DecorateScanState function. There is an existing functionin the solution library, to show as an example. The code file is PX.Objects.SO\WMS\Modes\PickModes.cs.
You would inject into the state you are checking. Search for the graph you are overriding, so you can list states. For example, pick pack ship has these states:
protected override IEnumerable<ScanState<PickPackShip>> CreateStates()
{
yield return new ShipmentState();
yield return new LocationState();
yield return new InventoryItemState() { AlternateType = INPrimaryAlternateType.CPN, IsForIssue = true, SuppressModuleItemStatusCheck = true };
yield return new LotSerialState();
yield return new ExpireDateState() { IsForIssue = true };
yield return new ConfirmState();
yield return new CommandOrShipmentOnlyState();
}
So lets say we want to interject the lot serial number barcode reader. In this example, we want to add an X in front of what is scanned.
public class PickPackShipExt : PickPackShip.ScanExtension
{
[PXOverride]
public virtual ScanState<PickPackShip> DecorateScanState(ScanState<PickPackShip> original, Func<ScanState<PickPackShip>, ScanState<PickPackShip>> base_DecorateScanState)
{
var state = base_DecorateScanState(original);
//are you in pick mode?
if (state.ModeCode == PickMode.Value)
{
//are you scanning lot serial information?
if(state is LotSerialState lotSerialState)
{
//add some sort of validation/transoformation
lotSerialState.Intercept.GetByBarcode.ByOverride((basis, barcode, del) =>
{
//call the delegate, which just trims the barcode
string newBarcode = del(barcode);
//do something else with the barcode to transform. This example, add an X to the beginning and return
newBarcode = "X" + newBarcode;
return newBarcode;
});
}
}
return state;
}
}
You can search the solution for the state, and check the functions that are called. For example, the lot serial state code is:
public class LotSerialState : EntityState<string>
{
public const string Value = "LTSR";
public class value : BqlString.Constant<value> { public value() : base(LotSerialState.Value) { } }
public override string Code => Value;
protected override string StatePrompt => Msg.Prompt;
protected override bool IsStateActive() => Basis.ItemHasLotSerial;
protected override string GetByBarcode(string barcode) => barcode.Trim();
protected override Validation Validate(string lotSerial) => Basis.IsValid<WMSScanHeader.lotSerialNbr>(lotSerial, out string error) ? Validation.Ok : Validation.Fail(error);
protected override void Apply(string lotSerial) => Basis.LotSerialNbr = lotSerial;
protected override void ReportSuccess(string lotSerial) => Basis.Reporter.Info(Msg.Ready, lotSerial);
protected override void ClearState() => Basis.LotSerialNbr = null;
[PXLocalizable]
public abstract class Msg
{
public const string Prompt = "Scan the lot/serial number.";
public const string Ready = "The {0} lot/serial number is selected.";
public const string NotSet = "The lot/serial number is not selected.";
}
}
I hope this helps everyone get their customizations working.
I have a Blazor page with two components. One component has a button which generates a random number when clicked. The other component has a text area which should display the generated random number.
<h1>Parent Page</h1>
<ProvideNumberComponent />
<DisplayNumberComponent />
#code {
}
<h3>Provides Number</h3>
<button class="btn btn-primary" #onclick="CalculateNumber">Provide Number</button>
#code {
private void CalculateNumber(MouseEventArgs e)
{
Random rnd = new Random();
Int32 nextNumber = rnd.Next();
}
}
<h3>Displays number</h3>
<textarea cols="9" rows="1" readonly style="font-family:monospace;" />
#code {
}
What is the cleanest way to get the number from the calculate sibling component to appear in the display sibling component?
A problem with my code is that the Random object is instantiated on every button click, instead of once on initialization. Is this best addressed by placing the Random object in a singleton service class, and injecting that into the calculate component?
The best solution, to my mind, is to create a service which implements the state pattern and the notifier pattern. The following code describes how communication between two sibling can be done through an intermediary
NotifierService.cs
public class NotifierService
{
public NotifierService()
{
}
int rnd;
public int RandomNumber
{
get => rnd;
set
{
if (rnd != value)
{
rnd= value;
if (Notify != null)
{
Notify?.Invoke();
}
}
}
}
public event Func<Task> Notify;
}
Add this: services.AddScoped<NotifierService>();
ProvideNumberComponent.razor
#inject NotifierService Notifier
#implements IDisposable
<h3>Provides Number</h3>
<button class="btn btn-primary" #onclick="CalculateNumber">Provide
Number</button>
#code
{
private void CalculateNumber(MouseEventArgs e)
{
Random rnd = new Random();
Int32 nextNumber = rnd.Next();
Notifier.RandomNumber = nextNumber;
}
public async Task OnNotify()
{
await InvokeAsync(() =>
{
StateHasChanged();
});
}
protected override void OnInitialized()
{
Notifier.Notify += OnNotify;
}
public void Dispose()
{
Notifier.Notify -= OnNotify;
}
}
DisplayNumberComponent.cs
#inject NotifierService Notifier
#implements IDisposable
<hr />
<h3>Displays number</h3>
<textarea cols="9" rows="1" readonly style="font-family:monospace;">
#Notifier.RandomNumber
</textarea>
#code {
public async Task OnNotify()
{
await InvokeAsync(() =>
{
StateHasChanged();
});
}
protected override void OnInitialized()
{
Notifier.Notify += OnNotify;
}
public void Dispose()
{
Notifier.Notify -= OnNotify;
}
}
Of course you can inject and use the service in multiple components, as well as adding more features that the service can provide.
Implementing communication by means of event handlers may be problematic, unless it is between a parent and its child...
Hope this works...
Indeed there are many ways to accomplish your goal, I just want to show you the way I like more:
Parent Component:
<EditForm Model="Message">
<PageOne #bind-Send="Message.Text"/>
<PageTwo #bind-Receive="Message.Text"/>
</EditForm>
#code{
public Content Message { get; set; }=new Index.Content();
public class Content
{
public string Text { get; set; } = "Hello world";
}
}
PageOne component - the one who send the value:
<button #onclick="#GetGuid">Change value</button>
#code{
[Parameter] public string Send { get; set; }
[Parameter] public EventCallback<string> SendChanged { get; set; }
async void GetGuid()
{
await SendChanged.InvokeAsync(Guid.NewGuid().ToString());
}
}
PageTwo the component which will receive the data
<h1>#Receive</h1>
#code{
[Parameter] public string Receive { get; set; }
[Parameter] public EventCallback<string> ReceiveChanged { get; set; }
}
Explanations:
Usually when we need to communicate, we need a third party service, and in this case I used the EditForm component, which can store a Model and the properties of this model can be shared by all child components.
I also made a custom component, with less functionality, and I named PhoneBox (to be used instead EditForm), just to be obvious the role :)
PhoneBox - third party communication service :)
<CascadingValue Value="EditContext">
#ChildContent(EditContext)
</CascadingValue>
#code {
[Parameter] public object Model { get; set; }
[Parameter]public EditContext EditContext { get; set; }
[Parameter] public RenderFragment<EditContext> ChildContent { get; set; }
protected override void OnInitialized()
{
EditContext = new EditContext(Model);
}
}
I like more this approach because look's more "blazor way" :)
Look how nice is "blazor way"
<PhoneBox Model="Message">
<PageOne #bind-Send="Message.Text"/>
<PageTwo #bind-Receive="Message.Text"/>
</PhoneBox>
You can see a working example Working Example
I think interfaces are the best way to do this.
This is from my Nuget package, DataJugger.Blazor.Components
Interface IBlazorComponent:
#region using statements
using System.Collections.Generic;
#endregion
namespace DataJuggler.Blazor.Components.Interfaces
{
#region interface IBlazorComponent
/// <summary>
/// This interface allows communication between a blazor componetn and a parent component or page.
/// </summary>
public interface IBlazorComponent
{
#region Methods
#region ReceiveData(Message message)
/// <summary>
/// This method is used to send data from a child component to the parent component or page.
/// </summary>
/// <param name="data"></param>
void ReceiveData(Message message);
#endregion
#endregion
#region Properties
#region Name
/// <summary>
/// This property gets or sets the Name.
/// </summary>
public string Name { get; set; }
#endregion
#region Parent
/// <summary>
/// This property gets or sets the Parent componet or page for this object.
/// </summary>
public IBlazorComponentParent Parent { get; set; }
#endregion
#endregion
}
#endregion
}
Interface IBlazorComponentParent
#region using statements
using System.Collections.Generic;
#endregion
namespace DataJuggler.Blazor.Components.Interfaces
{
#region interface IBlazorComponentParent
/// <summary>
/// This interface is used to host IBlazorComponent objects
/// </summary>
public interface IBlazorComponentParent
{
#region Methods
#region FindChildByName(string name)
/// <summary>
/// This method is used to find a child component that has registered with the parent.
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
IBlazorComponent FindChildByName(string name);
#endregion
#region ReceiveData(Message message)
/// <summary>
/// This method is used to send data from a child component to the parent component or page.
/// </summary>
/// <param name="data"></param>
void ReceiveData(Message message);
#endregion
#region Refresh()
/// <summary>
/// This method will call StateHasChanged to refresh the UI
/// </summary>
void Refresh();
#endregion
#region Register(IBlazorComponent component)
/// <summary>
/// This method is called by the Sprite to a subscriber so it can register with the subscriber, and
/// receiver events after that.
/// </summary>
void Register(IBlazorComponent component);
#endregion
#endregion
#region Properties
#region Children
/// <summary>
/// This property gets or sets the value for Children.
/// </summary>
public List<IBlazorComponent> Children { get; set; }
#endregion
#endregion
}
#endregion
}
For usage, here is the most relevant parts:
In your component, which is an IBlazorCompoent (child), there is a Parent property.
In your component, you set the parent like this:
<Login Parent=this></Login>
Then in your component, you alter the parent property like this:
[Parameter]
public IBlazorComponentParent Parent
{
get { return parent; }
set
{
// set the value
parent = value;
// if the Parent exists
(Parent != null)
{
// Register with the parent
Parent.Register(this);
}
}
}
Next, in your parent component that implements IBlazorComponentParent, add a property for your component and change the Register method to this:
// Login component reference
public Login LoginComponent { get; set; }
public void Register(IBlazorComponent component)
{
if (component is Login)
{
// Store the LoginComponent
LoginComponent = component as Login;
}
else if (component is Join)
{
// Store the compoent
SignUpComponent = component as Join;
}
}
Now at this point, my Login component knows about the parent and the parent knows about the Login, so I can sent messages like this:
From the child, send a simple message:
if (Parent != null)
{
Message message = new Message();
message.Text = "Some message";
Parent.SendMessage(message);
}
Or send a complex message
// create a message
DataJuggler.Blazor.Components.Message message = new DataJuggler.Blazor.Components.Message();
// Create the parameters to pass to the component
NamedParameter parameter = new NamedParameter();
// Set the name
parameter.Name = "PixelInformation Update";
parameter.Value = pixel;
// Create a new collection of 'NamedParameter' objects.
message.Parameters = new List<NamedParameter>();
// Add this parameter
message.Parameters.Add(parameter);
// Send this to the component
ColorPickerComponent.ReceiveData(message);
Then in the parent to receive the message:
public void ReceiveData(Message message)
{
// If the message object exists and has parameters
if ((message != null) && (message.HasParameters))
{
// if this a PixelInformation update from the Index page
if (message.Parameters[0].Name == "PixelInformation Update")
{
// this is only relevant to my app, just showing an example of
// \what I do with the data after it is received.
// Set the SelectedPixel
SelectedPixel = (PixelInformation) message.Parameters[0].Value;
// Set the properties from the Pixel to display
SetupColorPicker();
}
}
}
The above code is used in my newest site, PixelDatabase.Net https://pixeldatabase.net
The Nuget package code is all open source if anyone wants it:
DataJuggler.Blazor.Components
https://github.com/DataJuggler/DataJuggler.Blazor.Components
I come from a Windows Forms background, so I love being able to communicate between components like this, which data binding doesn't always work.
this.Login.DoSomething(data);
You can also cast the parent as a specific type like this:
public IndexPage ParentIndexPage
{
get
{
// cast the Parent object as an Index page
return this.Parent as IndexPage;
}
}
So your child can call methods or set properties on the parent, if the parent exists of course, so always add a:
public bool HasParentIndexPage
{
get
{
// return true if the ParentIndexPage exists
return (ParentIndexPage != null);
}
}
So then for easy usage from the child:
// if the parent index page exists
if (HasParentIndexPage)
{
// Safely call your parent page
ParentIndexPage.SomeMethod();
}
On way to do it would absolutely be to use the session pattern and inject the same instance in both components and then notify them onchange. A faster way would probably be to use the two way binding and eventcallbacks.
In ProvideNumberComponent.razor
<button class="btn btn-primary" #onclick="CalculateNumber">Provide Number</button>
#code {
[Parameter]
public EventCallback<int> OnRandomNumberSet{get; set;}
private void CalculateNumber(MouseEventArgs e)
{
Random rnd = new Random();
Int32 nextNumber = rnd.Next();
OnRandomNumberSet.InvokeAsync(nextNumber);
}
}
In ParentComponent.razor
<h1>Parent Page</h1>
<ProvideNumberComponent OnRandomNumberSet="((r) => SetRandomNumber(r))"/>
<DisplayNumberComponent TextAreaValue="_randomNumber" />
#code {
private int _randomNumber;
private void SetRandomNumber(int randomNumber)
{
_randomNumber = randomNumber;
}
}
In DisplayNumberComponent.razor
<h3>Displays number</h3>
<textarea cols="9" rows="1" bind:value="TextAreaValue" readonly style="font-family:monospace;" />
#code
{
[Parameter]
public int TextAreaValue{get; set;}
}
MDSN has an example using DI injected Notifier service
invoke component methods externally to update state, which should work for any component-relation (not only siblings).
At a steeper learning curve, but more maintenance-friendly + scaleable in the long run is the Flux/Redux library Fluxor
For anyone trying to get an overview of more "design-pattern"'ish solutions, MVVM is also a posibility, example here: MVVM example implementation 4 Blazor
I need to build a processing screen for customer locations that determines and then updates the residential flag on locations.
This code correctly processes each selected record and appears to update the appropriate fields. But the problem I am encountering is that my changes to Location are not being saved back to the database.
The Customer Locations graph requires the business account to be specified before you can enter a Location ID, and I suspect that because of that I cannot simply update the Locations view on the graph. But I cannot find any documentation or code examples indicating what approach I should use here.
Here is the code on my processing screen graph:
public class ProcessCustomerLocations : PXGraph<ProcessCustomerLocations>
{
public PXCancel<Location> Cancel;
public PXProcessing<Location, Where<Location.isActive, Equal<True>>> Locations;
public static void Process(List<Location> locations)
{
var graph = PXGraph.CreateInstance<CustomerLocationMaint>();
CustomerLocationMaint_Extension graphExt = graph.GetExtension<CustomerLocationMaint_Extension>();
foreach (var location in locations)
{
graphExt.UpdateLocation(location, true);
}
}
public ProcessCustomerLocations()
{
Locations.SetProcessDelegate(Process);
}
}
And here is my code on the CustomerLocationMaint_Extension graph:
public class CustomerLocationMaint_Extension : PXGraphExtension<CustomerLocationMaint>
{
public void UpdateLocation(Location location, bool isMassProcess = false)
{
bool isRes = false;
Base.Location.Current = Base.Location.Search<Location.locationID>(location.LocationID, location.BAccountID);
LocationExt locationExt = location.GetExtension<LocationExt>();
// INSERT CODE TO DETERMINE VALUE OF isRes
locationExt.UsrResidentialValidated = true;
location.CResedential = isRes;
Base.Location.Update(location);
Base.Actions.PressSave();
}
}
One of the fields I am updating on Location is a custom field called UsrResidentialValidated. Here is the code for that field.
namespace PX.Objects.CR
{
public class LocationExt : PXCacheExtension<PX.Objects.CR.Location>
{
#region UsrResidentialValidated
[PXDBBool]
[PXUIField(DisplayName="Residential Validated")]
public virtual bool? UsrResidentialValidated { get; set; }
public abstract class usrResidentialValidated : IBqlField { }
#endregion
}
}
Update
Thanks to some help from #Samvel I've modified the UpdateLocation code as follows. The following code does save the changes to the database (both on the custom field and the non-custom field), which is great. However, in order to do that, I had to create a new Location object "myLocation" and am no longer using the "location" object that the PXProcessing graph passed to UpdateLocation. This means that after processing, when the processing screen displays the processed records with the modified data (after processing finishes and before you refresh the screen), it does not show the updated values. Is there any way to both have the processing screen show the updated values and save the changes to the database?
public void UpdateLocation(PX.Objects.CR.Location location, bool isMassProcess = false)
{
bool isRes = true;
Location myLocation = PXSelect<Location,
Where<Location.bAccountID, Equal<Required<Location.bAccountID>>, And<Location.locationID, Equal<Required<Location.locationID>>>>>
.Select(this.Base, location.BAccountID, location.LocationID);
this.Base.Location.Current = myLocation;
LocationExt locationExt = myLocation.GetExtension<LocationExt>();
locationExt.UsrResidentialValidated = true;
myLocation.CResedential = isRes;
Base.Location.Current = Base.Location.Update(myLocation);
this.Base.Save.Press();
}
UPDATED
I have updated the code to correspond to your case. After processing all the records the records in the grid are being updated and showing modified records.
You can download the customization package for this code by this link
To create a processing page for updating Location you should do the following steps:
Add "Selected" field to the Location DAC
public sealed class LocationExt: PXCacheExtension<Location>
{
#region Selected
public abstract class selected : IBqlField
{ }
[PXBool()]
[PXDefault(true,PersistingCheck = PXPersistingCheck.Nothing)]
[PXUIField(DisplayName = "Selected")]
public bool? Selected { get; set; }
#endregion
#region UsrResidentialValidated
[PXDBBool]
[PXUIField(DisplayName = "Residential Validated")]
public bool? UsrResidentialValidated { get; set; }
public abstract class usrResidentialValidated : IBqlField { }
#endregion
}
This step is required because otherwise your delegate for SetProcessDelegate will never be called.
Acumatica is checking if there is at least one selected record before calling Process Delegate.
Create the Processing Graph like below:
using PX.Data;
using PX.Objects.CR;
using System.Collections.Generic;
namespace CustomerLocationUpdate
{
public class ProcessCustomerLocations : PXGraph<ProcessCustomerLocations>
{
public PXCancel<Location> Cancel;
public PXProcessingJoin<Location,InnerJoin<BAccountR,On<Location.bAccountID,Equal<BAccountR.bAccountID>>>,
Where<Location.isActive, Equal<True>,And<Location.locType, Equal<PX.Objects.CR.LocTypeList.customerLoc>>>> Locations;
public static void Process(List<Location> locations)
{
var graph = PXGraph.CreateInstance<PX.Objects.AR.CustomerLocationMaint>();
CustomerLocationMaint_Extension graphExt = graph.GetExtension<CustomerLocationMaint_Extension>();
foreach (var location in locations)
{
graphExt.UpdateLocation(location, true);
graph.Clear();
}
}
public ProcessCustomerLocations()
{
Locations.SetProcessDelegate(Process);
}
}
}
As you can see I have implicitly specified PX.Objects.AR and PX.Objects.CR for some reason the program has worked only this way on my instance.
Create the UpdateLocation method in the GraphExtension:
using PX.Data;
namespace CustomerLocationUpdate
{
public class CustomerLocationMaint_Extension : PXGraphExtension<PX.Objects.AR.CustomerLocationMaint>
{
public void UpdateLocation(PX.Objects.CR.Location location, bool isMassProcess = false)
{
bool isRes = false;
this.Base.Location.Current = PXSelect<PX.Objects.CR.Location,Where<PX.Objects.CR.Location.bAccountID,Equal<Required<PX.Objects.CR.Location.bAccountID>>,And<PX.Objects.CR.Location.locationID,Equal<Required<PX.Objects.CR.Location.locationID>>>>>.Select(this.Base,location.BAccountID,location.LocationID);
this.Base.Location.Current.CResedential = isRes;
LocationExt locationExt = PXCache<PX.Objects.CR.Location>.GetExtension<LocationExt>(this.Base.Location.Current);
locationExt.UsrResidentialValidated = false;
this.Base.Location.Current = this.Base.Location.Update(this.Base.Location.Current);
this.Base.Save.Press();
}
}
}
As you can see I am setting the Location.Current using PXSelect and not Location.Current.Search.
For some reason Location.Current.Search is always returning null.
May be it is caused by the PXProjectionAttribute applied to it, I am not sure what is the exact reason.
In my NinjectDependencyresolver I have this:
public NinjectDependencyResolver(IKernel kernelParam)
{
this.kernel = kernelParam;
AddBindings();
}
private void AddBindings()
{
kernel.Bind<IProductsRepository>().To<EFProductRepository>();
}
and then in my controller class I have this:
public class ProductController : Controller
{
private IProductsRepository repository;
public int PageSize = 4;
public ProductController()
{
}
public ProductController(IProductsRepository productRepository)
{
this.repository = productRepository;
}
The problem is that the repository is null
Also If I add a break point to the AddBinsings() method, it doesn't get hit before going to the controller, controller gets hit but AddBindings() does not.
So does it mean it is a problem with my Ninject?
ALSO: I added the parameter less constructor of ProductController after getting this error:
No parameterless constructor defined for this object
I don't think I need that constructor, but if I remove it I get that error.
I would start by removing the constructor to ProductController that has no parameters. This will force ninject to use the constructor with IProductsRepository.
As for the binding part, we have the binding taking place inside the NinjectWebCommon.cs file. Here is our sample:
public static class NinjectWebCommon
{
private static readonly Bootstrapper Bootstrapper = new Bootstrapper();
/// <summary>
/// Starts the application
/// </summary>
public static void Start()
{
DynamicModuleUtility.RegisterModule(typeof (OnePerRequestHttpModule));
DynamicModuleUtility.RegisterModule(typeof (NinjectHttpModule));
Bootstrapper.Initialize(CreateKernel);
}
/// <summary>
/// Stops the application.
/// </summary>
public static void Stop()
{
Bootstrapper.ShutDown();
}
/// <summary>
/// Creates the kernel that will manage your application.
/// </summary>
/// <returns>The created kernel.</returns>
private static IKernel CreateKernel()
{
var kernel = new StandardKernel(new VBNinjectModule());
kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel);
kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>();
BindWebSpecificServices(kernel);
GlobalConfiguration.Configuration.DependencyResolver = new VBNinjectDependencyResolver(kernel);
return kernel;
}
public static void BindWebSpecificServices(IKernel kernel)
{
kernel.Bind<IUserHelper>()
.To<UserHelper>()
.InRequestScope();
kernel.Bind<IRoleWebService>()
.To<RoleWebService>()
.InRequestScope();
}
Should have also called it in Gloabal.ashx.cs file
I have small WPF application. There are 5 projects in solution.
I want separate DOMAIN classes with UI ENTITIES and I want to use AUTOMAPPER.
You can download whole solution here: TestWPFAutomapper.zip
Domain class(Domain.Source.cs) with UI Entity(Entities.Destination.cs) have same signature.
In Entities.Destination.cs I would like to put other logic.
namespace DOMAIN
{
public class Source
{
public int Id { get; set; }
public int Position { get; set; }
}
}
using System.ComponentModel;
namespace ENITITIES
{
public class Destination : INotifyPropertyChanged
{
private int _id;
private int _position;
public int Id
{
get { return _id; }
set
{
_id = value;
OnPropertyChanged("Id");
}
}
public int Position
{
get { return _position; }
set
{
_position = value;
OnPropertyChanged("Position");
}
}
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged(string propertyName)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
}
}
}
My data comes from DAL.DataContext using Entity Framework with CodeFirst. Here I´m using Source class.
using System.Data.Entity;
using DOMAIN;
namespace DAL
{
public class DataContext : DbContext
{
public DbSet<Source> Sources { get; set; }
}
}
Mapping is in BL.MyAppLogic.cs . In this class I have property Items which is ObservableCollection.
After puting another item into DB for Source class collection get refresh but for Destination is not refreshing.
using System.Collections.ObjectModel;
using System.Data.Entity;
using System.Linq;
using AutoMapper;
using DAL;
using DOMAIN;
using ENITITIES;
namespace BL
{
public class MyAppLogic
{
private readonly DataContext _dataContext = new DataContext();
public ObservableCollection<Source> Items { get; set; }
//public ObservableCollection<Destination> Items { get; set; }
public MyAppLogic()
{
Database.SetInitializer(new MyInitializer());
Mapping();
_dataContext.Sources.Load();
Items = _dataContext.Sources.Local;
//Items = Mapper.Map<ObservableCollection<Source>, ObservableCollection<Destination>>(_dataContext.Sources.Local);
}
private void Mapping()
{
Mapper.CreateMap<Source, Destination>().ReverseMap();
// I tried also Mapper.CreateMap<ObservableCollection<Source>, ObservableCollection<Destination>>().ReverseMap();
}
public int GetLastItem()
{
return _dataContext.Database.SqlQuery<int>("select Position from Sources").ToList().LastOrDefault();
}
public void AddNewItem(Destination newItem)
{
_dataContext.Sources.Add(Mapper.Map<Destination, Source>(newItem));
_dataContext.SaveChanges();
}
}
}
My problem is not with mapping, that’s works good, but with refreshing collection after adding or removing items from db. If I use DOMAIN.Source class everything works, collection is refreshing. But when I’m using ENTITIES.Destination data comes from DB and also I can put som new data to DB but refresing ObservableCollection is not working.
Please try to comment lines(14 & 23) in BL.MyAppLogic.cs and uncomment(15 & 24) and you’ll see what I mean.
Thank you for any help.
I got it but I don´t know if is correct.
Local has CollectionChanged event
so in constructor I put these lines
public MyAppLogic()
{
Database.SetInitializer(new MyInitializer());
Mapping();
_dataContext.Sources.Load();
_dataContext.Sources.Local.CollectionChanged += SourcesCollectionChanged;
Items = Mapper.Map<ObservableCollection<Source>, ObservableCollection<Destination>>(_dataContext.Sources.Local);
}
and handler looks
private void SourcesCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
var source = sender as ObservableCollection<Source>;
Mapper.Map(source, Items);
}
Now is my collection automating refreshing when I put something to DB in my UI.
Looks like automapper don´t put reference into Items, but create new instance.