<div id="parent">
    <div id="child1">
        <div id="child2">
            <div id="child3"></div>
        </div>
    </div>
</div>

$('#parent').on('click', function (event) {

});

$('#child1').on('click', function (event) {

});

$('#child2').on('click', function (event) {

});

$(document).on('click', '#parent, #child1, #child2, #child3', function (event) {

});

$('.post .edit').on('click', function (event) {

});

$(document).on('click', '.post .edit', function (event) {

});

        var elemnt = $(event.target);
        if (elemnt.attr('id') === 'parent') {
            alert('this is parnet');
        }
        else if (elemnt.attr('id') === 'child2') {
            alert('this is child2');
        }

$(document).ready(function () {

    $(document).on('click','#parent', function (event) {

    });

    $(document).on('click','#child1', function (event) {

    });

    $(document).on('click','#child2', function (event) {
        event.st
    });

});

dynamic excel = Activator.CreateInstance(Type.GetTypeFromProgID("Excel.Application", true));
excel.Visible = true;
Console.WriteLine("Press Enter to close Excel.");
Console.ReadLine();
excel.Quit();

 System.__ComObject does not contain a definition for 'Visible'

using Excel = Microsoft.Office.Interop.Excel;
// ...
var excel = new Excel.Application();
excel.Visible = true;
Console.WriteLine("Press Enter to close Excel.");
Console.ReadLine();
excel.Quit();

  <ItemGroup>
    <Reference Include="Interop.WIA">
      <HintPath>..\DNTScanner.Core.TypeLibrary\bin\Debug\Interop.WIA.dll</HintPath>
      <EmbedInteropTypes>True</EmbedInteropTypes>
    </Reference>
  </ItemGroup>

  <ItemGroup Condition=" '$(TargetFramework)' == 'net40' ">
    <Reference Include="Microsoft.CSharp" />
  </ItemGroup>
  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
    <PackageReference Include="Microsoft.CSharp" Version="4.5.0" />
  </ItemGroup>

<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp3.0</TargetFramework>
  </PropertyGroup>
  
  <!--
    The following 'COMReference' items were copied from a .NET Framework project.
    They were added by using the Visual Studio COM References window. 
    See https://docs.microsoft.com/en-us/visualstudio/ide/managing-references-in-a-project?view=vs-2017.
    Observe the 'EmbedInteropTypes' tag value.
    See https://docs.microsoft.com/en-us/visualstudio/msbuild/common-msbuild-project-items?view=vs-2017#comreference
  -->
  <ItemGroup>
    <COMReference Include="Microsoft.Office.Core">
      <Guid>{2DF8D04C-5BFA-101B-BDE5-00AA0044DE52}</Guid>
      <VersionMajor>2</VersionMajor>
      <VersionMinor>8</VersionMinor>
      <Lcid>0</Lcid>
      <WrapperTool>primary</WrapperTool>
      <Isolated>False</Isolated>
      <EmbedInteropTypes>True</EmbedInteropTypes>
    </COMReference>
    <COMReference Include="Microsoft.Office.Interop.Excel">
      <Guid>{00020813-0000-0000-C000-000000000046}</Guid>
      <VersionMajor>1</VersionMajor>
      <VersionMinor>9</VersionMinor>
      <Lcid>0</Lcid>
      <WrapperTool>primary</WrapperTool>
      <Isolated>False</Isolated>
      <EmbedInteropTypes>True</EmbedInteropTypes>
    </COMReference>
    <COMReference Include="VBIDE">
      <Guid>{0002E157-0000-0000-C000-000000000046}</Guid>
      <VersionMajor>5</VersionMajor>
      <VersionMinor>3</VersionMinor>
      <Lcid>0</Lcid>
      <WrapperTool>primary</WrapperTool>
      <Isolated>False</Isolated>
      <EmbedInteropTypes>True</EmbedInteropTypes>
    </COMReference>
  </ItemGroup>
</Project>

$("#divAllComments").html(jsData.data + $("#divAllComments").html());

$("#divAllComments").append(jsData.data);

using System.ComponentModel.DataAnnotations;

namespace NotifyPropertyChangedGenerator.Demo;

public enum Gender
{
    NotSpecified,
    [Display(Name = "مرد")] Male,
    [Display(Name = "زن")] Female
}

public static class Extensions
{
    public static string GetDisplayName(this Enum value)
    {
        if (value is null)
            throw new ArgumentNullException(nameof(value));

        var attribute = value.GetType().GetField(value.ToString())?
            .GetCustomAttributes<DisplayAttribute>(false).FirstOrDefault();

        if (attribute is null)
            return value.ToString();

        return attribute.GetType().GetProperty("Name")?.GetValue(attribute, null)?.ToString();
    }
}

namespace NotifyPropertyChangedGenerator.Demo
{
  public static class GenderExtensions
  {
      public static string GetDisplayName(this Gender @enum)
      {
          return @enum switch
            {
                Gender.NotSpecified => "NotSpecified",
                Gender.Male => "مرد",
                Gender.Female => "زن",
                _ => throw new ArgumentOutOfRangeException(nameof(@enum))
            };
      }
  }
}

[Generator]
public class EnumExtensionsGenerator : ISourceGenerator
{
    public void Initialize(GeneratorInitializationContext context)
    {}

    public void Execute(GeneratorExecutionContext context)
    {
        var compilation = context.Compilation;
        foreach (var syntaxTree in compilation.SyntaxTrees)
        {
            var semanticModel = compilation.GetSemanticModel(syntaxTree);
            var immutableHashSet = syntaxTree.GetRoot()
                .DescendantNodesAndSelf()
                .OfType<EnumDeclarationSyntax>()
                .Select(enumDeclarationSyntax => semanticModel.GetDeclaredSymbol(enumDeclarationSyntax))
                .OfType<ITypeSymbol>()
                /*.Where(typeSymbol => typeSymbol.GetAttributes().Any(
                    attributeData => string.Equals(attributeData.AttributeClass?.Name, "GenerateExtensions",
                        StringComparison.Ordinal)
                ))*/
                .ToImmutableHashSet();

            foreach (var typeSymbol in immutableHashSet)
            {
                var source = GenerateEnumExtensions(typeSymbol);
                context.AddSource($"{typeSymbol.Name}Extensions.cs", source);
            }
        }
    }

    private string GenerateEnumExtensions(ITypeSymbol typeSymbol)
    {
        return $@"namespace {typeSymbol.ContainingNamespace}
{{
  public static class {typeSymbol.Name}Extensions
  {{
      public static string GetDisplayName(this {typeSymbol.Name} @enum)
      {{
          {GenerateExtensionMethodBody(typeSymbol)}
      }}
  }}
}}";
    }

    private static string GenerateExtensionMethodBody(ITypeSymbol typeSymbol)
    {
        var sb = new StringBuilder();
        sb.Append(@"return @enum switch
            {
");

        foreach (var fieldSymbol in typeSymbol.GetMembers().OfType<IFieldSymbol>())
        {
            var displayAttribute = fieldSymbol.GetAttributes()
                .FirstOrDefault(attributeData =>
                    string.Equals(attributeData.AttributeClass?.Name, "DisplayAttribute", StringComparison.Ordinal));
            if (displayAttribute is null)
            {                
                sb.AppendLine(
                    $@"                {typeSymbol.Name}.{fieldSymbol.Name} => ""{fieldSymbol.Name}"",");
            }
            else
            {
                var displayAttributeName = displayAttribute.NamedArguments
                    .FirstOrDefault(x => string.Equals(x.Key, "Name", StringComparison.Ordinal))
                    .Value;
                sb.AppendLine(
                    $@"                {typeSymbol.Name}.{fieldSymbol.Name} => ""{displayAttributeName.Value}"",");
            }
        }

        sb.Append(
            @"                _ => throw new ArgumentOutOfRangeException(nameof(@enum))
            };");

        return sb.ToString();
    }

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net6.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>

    <EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
    <CompilerGeneratedFilesOutputPath>Generated</CompilerGeneratedFilesOutputPath>
  </PropertyGroup>
  
  <Target Name="CleanSourceGeneratedFiles" BeforeTargets="BeforeBuild" DependsOnTargets="$(BeforeBuildDependsOn)">
    <RemoveDir Directories="$(CompilerGeneratedFilesOutputPath)" />
  </Target>  
  <ItemGroup>
    <!-- Exclude the output of source generators from the compilation -->
    <Compile Remove="$(CompilerGeneratedFilesOutputPath)/**/*.cs" />
<Content Include="$(CompilerGeneratedFilesOutputPath)/**" />
  </ItemGroup>

  <ItemGroup>
    <ProjectReference Include="..\NotifyPropertyChangedGenerator\NotifyPropertyChangedGenerator.csproj" 
OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
  </ItemGroup>
</Project>

{BaseIntermediateOutpath}/generated/{Assembly}/{SourceGeneratorName}/{GeneratedFile}

قدم بعدی افزودن کدهای سمت کلاینت برای SignalR می‌باشد. دقت داشته باشید که کدهایی که در ادامه مشاهده خواهید کرد دقیقاً مطابق دستورالمعل‌هایی است که قبلاً مشاهده کرده‌اید. برای اینکار داخل کلاس MainActivity.java کدهای زیر را اضافه کنید:

Platform.loadPlatformComponent( new AndroidPlatformComponent() );
HubConnection connection = new HubConnection(DEFAULT_SERVER_URL);
HubProxy hub = connection.createHubProxy("ChatHub");
connection.error(new ErrorCallback() {
    
    @Override
    public void onError(final Throwable error) {
        runOnUiThread(new Runnable() {
            public void run() {
                Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
            }
        });
        
    }
});
hub.subscribe(new Object() {
    @SuppressWarnings("unused")
    public void messageReceived(final String name, final String message) {
        
        runOnUiThread(new Runnable() {
            public void run() {
                Toast.makeText(getApplicationContext(), name + ": " + message, Toast.LENGTH_LONG).show();
            }
        });
    }
});
connection.start()
.done(new Action<Void>() {
    
    @Override
    public void run(Void obj) throws Exception {
        runOnUiThread(new Runnable() {
            public void run() {
                Toast.makeText(getApplicationContext(), "Done Connecting!", Toast.LENGTH_LONG).show();
            }
        });
    }
});
connection.received(new MessageReceivedHandler() {
    @Override
    public void onMessageReceived(final JsonElement json) {
        runOnUiThread(new Runnable() {
            public void run() {
                JsonObject jsonObject = json.getAsJsonObject();
                JsonArray jsonArray =jsonObject.getAsJsonArray("A");
                Toast.makeText(getApplicationContext(), jsonArray.get(0).getAsString() + ": " + jsonArray.get(1).getAsString(), Toast.LENGTH_LONG).show();
            }
        });
    }
});

همانطور که مشاهده می‌کنید توسط قطعه کد زیر SKD مربوطه در نسخه‌های قدیمی اندروید نیز بدون مشکل کار خواهد کرد:

Platform.loadPlatformComponent( new AndroidPlatformComponent() );

در ادامه توسط متد createHubProxy ارجاعی به هابی که در سمت سرور ایجاد کردیم، داده‌ایم:

HubProxy hub = connection.createHubProxy("ChatHub");

در ادامه نیز توسط یک روال رویدادگردان وضعیت اتصال را چک کرده‌ایم. یعنی در زمان بروز خطا در نحوه ارتباط یک پیام بر روی صفحه نمایش داده می‌شود:

connection.error(new ErrorCallback() {
    
    @Override
    public void onError(final Throwable error) {
        runOnUiThread(new Runnable() {
            public void run() {
                Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
            }
        });
        
    }
});

hub.subscribe(new Object() {
    @SuppressWarnings("unused")
    public void messageReceived(final String name, final String message) {
        
        runOnUiThread(new Runnable() {
            public void run() {
                Toast.makeText(getApplicationContext(), name + ": " + message, Toast.LENGTH_LONG).show();
            }
        });
    }
});

connection.start()
.done(new Action<Void>() {
    
    @Override
    public void run(Void obj) throws Exception {
        runOnUiThread(new Runnable() {
            public void run() {
                Toast.makeText(getApplicationContext(), "Done Connecting!", Toast.LENGTH_LONG).show();
            }
        });
    }
});

connection.received(new MessageReceivedHandler() {
    @Override
    public void onMessageReceived(final JsonElement json) {
        runOnUiThread(new Runnable() {
            public void run() {
                JsonObject jsonObject = json.getAsJsonObject();
                JsonArray jsonArray =jsonObject.getAsJsonArray("A");
                Toast.makeText(getApplicationContext(), jsonArray.get(0).getAsString() + ": " + jsonArray.get(1).getAsString(), Toast.LENGTH_LONG).show();
            }
        });
    }
});

http://hostname/api/products/28

namespace ProductStore.Models
{
    public class Product
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public string Category { get; set; }
        public decimal Price { get; set; }
    }
}

namespace ProductStore.Models
{
    public interface IProductRepository
    {
        IEnumerable<Product> GetAll();
        Product Get(int id);
        Product Add(Product item);
        void Remove(int id);
        bool Update(Product item);
    }
}

namespace ProductStore.Models
{
    public class ProductRepository : IProductRepository
    {
        private List<Product> products = new List<Product>();
        private int _nextId = 1;

        public ProductRepository()
        {
            Add(new Product { Name = "Tomato soup", Category = "Groceries", Price = 1.39M });
            Add(new Product { Name = "Yo-yo", Category = "Toys", Price = 3.75M });
            Add(new Product { Name = "Hammer", Category = "Hardware", Price = 16.99M });
        }

        public IEnumerable<Product> GetAll()
        {
            return products;
        }

        public Product Get(int id)
        {
            return products.Find(p => p.Id == id);
        }

        public Product Add(Product item)
        {
            if (item == null)
            {
                throw new ArgumentNullException("item");
            }
            item.Id = _nextId++;
            products.Add(item);
            return item;
        }

        public void Remove(int id)
        {
            products.RemoveAll(p => p.Id == id);
        }

        public bool Update(Product item)
        {
            if (item == null)
            {
                throw new ArgumentNullException("item");
            }
            int index = products.FindIndex(p => p.Id == item.Id);
            if (index == -1)
            {
                return false;
            }
            products.RemoveAt(index);
            products.Add(item);
            return true;
        }
    }
}

using ProductStore.Models;

public class ProductsController : ApiController
{
    static readonly IProductRepository repository = new ProductRepository();
}

public class ProductsController : ApiController
{
    public IEnumerable<Product> GetAllProducts()
    {
        return repository.GetAll();
    }
    // ....
}

public Product GetProduct(int id)
{
    Product item = repository.Get(id);
    if (item == null)
    {
        throw new HttpResponseException(HttpStatusCode.NotFound); 
    }
    return item;
}

public IEnumerable<Product> GetProductsByCategory(string category)
{
    return repository.GetAll().Where(
        p => string.Equals(p.Category, category, StringComparison.OrdinalIgnoreCase));
}

// Not the final implementation!
public Product PostProduct(Product item)
{
    item = repository.Add(item);
    return item;
}

public HttpResponseMessage PostProduct(Product item)
{
    item = repository.Add(item);
    var response = Request.CreateResponse<Product>(HttpStatusCode.Created, item);

    string uri = Url.Link("DefaultApi", new { id = item.Id });
    response.Headers.Location = new Uri(uri);
    return response;
}

public void PutProduct(int id, Product product)
{
    product.Id = id;
    if (!repository.Update(product))
    {
        throw new HttpResponseException(HttpStatusCode.NotFound);
    }
}

public void DeleteProduct(int id)
{
    Product item = repository.Get(id);
    if (item == null)
    {
        throw new HttpResponseException(HttpStatusCode.NotFound);
    }

    repository.Remove(id);
}