Contents

1. Get to know our basic Angular TabsComponent (in master branch here)
2. Declare a template within a template using ng-template in Angular
3. Pass a reference of an ng-template to a component and render it in Angular
4. Pass data to be rendered in a dynamic ng-template using ngTemplateOutletContext in Angular
5. Define an anchor point where to render dynamic components in Angular
6. Dynamically instantiate an Angular component
7. Destroy a dynamically instantiated Angular component 

Manage events entities is pretty easy. You define few informations like a subject, a content, and maybe the most important, dates (a start and a end date of course).
You’re ready to create calendar or timeline features. Baooom! Now you need to be able to create recurrent event ! And everything is going to break.
I’ve work on this kind of feature, and here are my small advices 

- Reduce start up time by loading finished code first models from a persistent cache
- Fluent API to define indexes
- DbFunctions.Like() to enable writing LINQ queries that translate to LIKE in SQL
- Migrate.exe should support -script option
- EF6 does not work with primary key from sequence
- Update error numbers for SQL Azure Execution Strategy
- Bug: Retrying queries or SQL commands fails with “The SqlParameter is already contained by another SqlParameterCollection”
- Bug: Evaluation of DbQuery.ToString() frequently times out in the debugger

"use strict";

var person = {
    name: "Vahid Mohammad Taheri"
};

Object.seal(person);
person.age = 27;    // Error!

var proxy = new Proxy({ name: "Vahid" }, {
    get: function(target, property) {
        if (property in target) {
            return target[property];
        } else {
            return 13;
        }
    }
});

console.log(proxy.time);        // 13
console.log(proxy.name);        // "Vahid"
console.log(proxy.title);       // 13

function createDefensiveObject(target) {

    return new Proxy(target, {
        get: function(target, property) {
            if (property in target) {
                return target[property];
            } else {
                throw new ReferenceError("Property \"" + property + "\" does not exist.");
            }
        }
    });
}

var person = {
    name: "Vahid"
};

var defensivePerson = createDefensiveObject(person);

console.log(defensivePerson.name);        // "Vahid"
console.log(defensivePerson.age);         // Error!

var person = {
    name: "Vahid"
};

var defensivePerson = createDefensiveObject(person);

console.log(defensivePerson.name);        // "Vahid"

defensivePerson.age = 13;
console.log(defensivePerson.age);         // 13

var person = {
    name: "Vahid"
};

var defensivePerson = createDefensiveObject(person);

console.log("name" in defensivePerson);               // true
console.log(defensivePerson.hasOwnProperty("name"));  // true

console.log("age" in defensivePerson);                // false
console.log(defensivePerson.hasOwnProperty("age"));   // false

var person = {
    name: "Vahid"
};

Object.preventExtensions(person);

var defensivePerson = createDefensiveObject(person);


defensivePerson.age = 27;                 // Error!
console.log(defensivePerson.age);         // Error!

function Person(name) {
    this.name = name;

    return createDefensiveObject(this);
}

var person = new Person("Vahid");
console.log(person.age);         // Error!

 System.Data.Entity.Database.SetInitializer(new DropCreateDatabaseAlways<ProductContext>());

@page "/js-sample"


<button class="btn btn-primary" onclick="JsFunctionHelper.invokeDotnetStaticFunction()">Invoke Static Method</button>

@code
{
    [JSInvokable]
    public static Task<string> HelpMessage()
    {
        return Task.FromResult("Help text from C# static function");
    }
}

window.JsFunctionHelper = {
  invokeDotnetStaticFunction: function () {
    DotNet.invokeMethodAsync("BlazorRazorSample.Client", "HelpMessage").then(
      (data) => {
        console.log(data);
      }
    );
  }
};

@page "/js-sample"
@implements IDisposable

@inject IJSRuntime jSRuntime

<button class="btn btn-primary" @onclick="CallInstanceMethod">Invoke Instance Method</button>

@code
{
    private DotNetObjectReference<JsSample> objectReference;

    [JSInvokable]
    public string GetAddress()
    {
        return "123 Main Street";
    }

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if(firstRender)
        {
            objectReference = DotNetObjectReference.Create(this);
        }
    }

    private async Task CallInstanceMethod()
    {
        await jSRuntime.InvokeVoidAsync("JsFunctionHelper.invokeDotnetInstanceFunction", objectReference);
    }

    public void Dispose()
    {
        objectReference?.Dispose();
    }
}

window.JsFunctionHelper = {
  invokeDotnetInstanceFunction: function (addressProvider) {
    addressProvider.invokeMethodAsync("GetAddress").then((data) => {
      console.log(data);
    });
  }
};

PM> Install-package requireJs

define(["credits","products"], function(credits,products) {
  console.log("Function : purchaseProduct");
  return {
    purchaseProduct: function() {
      var credit = credits.getCredits();
      if(credit > 0){
        products.reserveProduct();
        alert('purchase done');'
        return true;


 }
        alert('purchase cancel'); 
        return false;
    }
  }
});

define(function(products) {
  return {
    reserveProduct: function() {
      console.log("Function : reserveProduct");
      return true;
    }
  }
});

define(function() {
  console.log("Function : getCredits");
  return {
    getCredits: function() {
      var credits = "100";
      return credits;
    }
  }
});

  bundles.Add( new ScriptBundle( "~/bundles/require" ).Include(
                      "~/Scripts/require.js" ) );

@section scripts
{
    <script type="text/javascript">
    require(['purchase'], function (purchase)
    {        
        purchase.purchaseProduct();
    });
</script>
}