Tag Archives: .net classes

Ways To Configure log4net For .NET Core

We start with the mention that the log4net team published new NuGet packages which support.NETStandard 1.3, which says it must work with .NET Core. This article is to discuss updates for log4net support.

Ways To Configure log4net For Dot NET Core

To start with: Configure() log4net

To add a reference to the log4net NuGet package is no problem. If you worked previously with log4net for any amount of time, you know that you must add codes for configuring it.

XmlConfigurator.Configure() needs some parameters that we didn’t usually provide in the past.

Configuration Workaround: Load It Manually

This log4net is good enough to load its configuration from a web.config or log4net.config file. In .NET Core, it doesn’t appear to know how.

It makes sense that this can’t read from a web.config/app.config because they don’t exist in .NET Core.

But, it doesn’t automatically try to read a log4net.config file. To mention, NLog does the same thing. You need to configure manually as in .NET Core.

With little little reverse dtudying, you will know how to load the log4net.config file and configure log4net.

var logRepository = LogManager.GetRepository(Assembly.GetEntryAssembly());

XmlConfigurator.Configure(logRepository, new FileInfo(“log4net.config”));

You can get this to work with a .NET Core app targeting both netcoreapp1.0 and net452. Sum up that to your Program.cs as the first thing your code does.

There is a mention about some limitations with the current 2.0.7 version of log4net. Hopefully, there will be some more developments.

Now with this, we conclude. We hope this was of help to you.

If you want to enhance yourself in Dot Net Course and improve yourself then our institute, CRB Tech Solutions would be of great help and support.

They offer a well-structured program for the best Dot Net Training course. Among many reputed institutes of dot net training and placement in Pune. Keep coding!!

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Tips To Increase Visual Studio Editor Window Space Rapidly

Today under the topic for dot net coding tips and tricks, we shall discuss how to maximise the Visual Studio window space faster.

Tips To Increase Visual Studio Editor Window Space Rapidly

 

Many of you must like to prefer that, right? To bestow more screen space in Visual Studio to the editor window as possible.

At times doing the same on full-screen mode might not be that easy or your requirement, because getting to several tool windows — Solution Explorer, for example — isn’t certain.

Here we share Dot Net tips to bring back the tool panes to the windows layout, after hiding them by one click.

If you want to get the maximum space for your editor’s window without giving up the VS window, then go to Windows menu and select the option, Auto Hide All. That choice will collapse all of your tool panes: Solution Explorer, the Properties List, the toolbox, and all the related things will collapse into the sides of the Visual Studio, providing you a maximum editing space inside the Visual Studio.

You can definitely bring back the tool panes when you need them by a single click, but there is no “auto un-hide all” option; so you have to bring back every tool pane, individually.

In Visual Studio 2015, there was an alternative to bring back each tool page one-by-one. To make use of this, you need to first set up your “preferred” layout of tool panes. Next, assign this Windows layout a name and save it by visiting the Window menu and by selecting Save Window Layout.

With your preferred, saved the layout, after applying Auto Hide All; you can go back to the tool panes of your choice by selecting Window | Apply Window Layout | <your layout name> from the menu drop down list.

To mention, the earlier versions of Visual Studio did not have any option to save Windows layouts but only kept in memory, the layouts for 4 fixed modes: Design, Debug, Full Screen, and File.

Now with this, we conclude our today’s blog under dot net tips and tricks. We hope this was of help to you.

Keep coding!!

To be successful in yours .Net career, try to enhance your skill set in Dot Net Course and improve yourself through Dot NET training programs. In this reference our institute i.e. CRB Tech Solutions Pune could be of great help and support for you.

Stay connected to this space for more technical blogs and updates related to the world of Dot Net.

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Why You Need To Add An Error Handler To Your ASP.NET MVC Controller

Today we shall discuss error handling under the topic of dot net tips and tricks.

Need_To_Add_An_Error_Handler_To_Your_ASP_DOT_NET_MVC_Controller

An error handler is significant in order to avoid future problems. There isn’t anything like an “unhandled error” — if your code causes an error outside of a Try…Catch block, then the error will come up through several ASP.NET and .NET Framework error handlers. An “unhandled error” is actually another form of an error that you couldn’t handle.

Here we share Dot Net tips to avoid an error from bubbling up in future.

In ASP.NET MVC you could handle lots of errors by inserting an error handler inside your Controller: You need to add a OnException method to your Controller. The code will be implored each time there is an “unhandled error” in the Controller.

It’s an easy way to add the method: In your Controller, you need to type Overrides (in Visual Basic) or override (in C#), next press the Tab key to get a list of override methods, pick OnException from the drop down list, and again press the Tab key. Visual Studio will write the structure of the method for you.

The version for Visual Basic will as shown below:

Protected Overrides Sub OnException(filter context As ExceptionContext)

End Sub

Your method then sends an ExceptionContext object whose Exception property will give you access to all of the information telling what went wrong. Within the OnException method, you can do anything you want about the error which appears specific to the Controller. If you don’t take any further action, the error will keep coming up to the ASP.NET error handler.

And if you are willing to finish by making use of RedirectToRouteResult method built into the Controller to send the user an error page of your choice then you must stop that process, by which the error pops out. You can do with this line:

filter context.ExceptionHandled = True

This sets the ExceptionContext object’s ExceptionHandled property to True.

Now with this, we conclude. We hope this was of help to you. Keep looking into this space for more blogs on dot net coding tips and tricks.

Keep coding!! 

To be successful in yours .Net career, try to enhance your skill set and improve yourself through Dot NET training programs. In this reference, CRB Tech Solutions, Pune could be of great help and support for you.

Stay connected to this space for more technical blogs and updates related to the world of Dot Net.

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Final Features Of .NET Standard 2.0

The .NET Standard is a specification of the entire API’s that a .NET platform needs to implement in order to form a .NET platform. The standard is an open source, and you can find every different version and API’s in the same place.

Final Features Of .NET Standard 2.0

Now the .NET Standard 2.0 is with its final look. Microsoft has announced this and said that users can create .NET Standard 2.0 libraries and NuGet packages as well, but the company has suggested making use of .NET Core Preview 2 as it has several necessary enhancements to make your experience better.

Extra ordinary features of .NET Standard 2.0 as suggested by Microsoft:

Bigger API Surface

With doubled set of available APIs from 13k in .NET Standard 1.6 to 32k in version 2.0. will make it easier to port current codes to .NET Standard, and also to any .NET implementation of .NET Standard, like .NET Core 2.0 and the next version of UWP.

.NET Framework mode of compatibility

Majority of NuGet packages targets .NET Framework. Many projects are being blocked at present from moving to .NET Standard because all their dependencies are not targeting .NET Standard. Hence the need of compatibility mode that permits .NET Standard projects to depend on libraries of .NET Framework as if they were made for .NET Standard. It has been found that about 70% of NuGet packages on nuget.org are API compatible with .NET Standard 2.0, hence practically, it unblocks several projects.

Broad platform support

This will be supported on the below mentioned platforms:

.NET Framework 4.6.1

.NET Core 2.0

Mono 5.4

Xamarin.iOS 10.14

Xamarin.Mac 3.8

Xamarin.Android 7.5

Besides this, the company also told about the prerequisite tools for using .NET Standard 2.0. You need the latest versions of the following tools :

.NET Core SDK : Microsoft recommended to install .NET Core 2.0 Preview 2. This includes CLI as well.

Visual Studio: Users For this, you have to install Visual Studio 2017 15.3 which is the latest version of VS. For Mac users, the latest version of Visual Studio for Mac is perfect.

For more details, you can visit Microsoft site or read their release documents.

Now with this, we conclude. We hope this was of help to you.

Keep coding!! If you want to enhance yourself in Dot Net Course and improve yourself through Dot NET training program; our institute would be of great help and support. We offer well structured program for the Best Dot Net Training Course. Among many reputed institutes of dot net training and placement in Pune, CRB Tech has created a niche for itself.

Stay connected with us for your technical up-gradation and to remain updated with all the happenings in the world of Dot Net.

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3 Aspects Every ASP.Net Developers Must Know

With several options to design web applications in MS ecosystem like ASP.Net MVC, ASP.Net Web Forms, Single Page Applications. From the start of ASP.Net it supported ASP.Net Web Forms and even today enterprises develop many of web applications using them. The web forms help you create faster web applications.

3 Aspects Every ASP.Net Developers Must Know

But it envelops the underlying technology i.e. HTTP totally.

If you know the basics, you must know how to summon javascript from your code behind codes in ASP.Net Code.

In this article, we covered 3 basic things which every ASP.Net developer must know while using ASP.Net Web Forms

1.The nature of HTTP and Request-Response pattern:

All web applications are created using ASP.Net use HTTP protocol or its secured versions. You can consider HTTPS as using HHTP safely. HTTPS makes use of Secure Socket Layer (SSL) and encrypts your data. But, HTTPS still use HTTP.

HTTP is a no state protocol which follows a response/request pattern i.e., the user requests a resource and the web server sends the resource.

The web server never keeps any state of the previous requests. If the user requests for the same resource, the web server will respond as if the request was made for the first time. There are several ways to maintain the state in a web application. ViewState is one such way. Here all the data is coded in a hidden field and sent to the client and hence the state can be maintained between requests.

There are several other ways available to maintain the state which would be discussed later. For the time being, it is for your information that even though HTTP is stateless, there are certain options to maintain the state.

2. Role of CSS, HTML,Javascript, ASPX page in ASP.Net web application

Your browser can only understand HTML, CSS, javascript . So the web technology must be converted to technology based code to HTML, CSS and JS.

HTML provides the layout of the web page.

CSS or Cascading style sheet will help you in putting styles to elements on the page.

Javascript is to process the elements at client side without hitting the server. Javascript is used only for validation, to handle the user input, to change the style of some element based on data or user input etc…

When a user reaches out for the ASP.Net web page, these are the sequence of events that occur:

User reaches out the web page

The request is sent to the server where the web application is hosted. The web server carries forward the request to ASP.Net because the requested resource is of aspx page.

Net converts ASP.Net code into CSS, HTML and JS

The changed document is sent back to the user and the user gets the web page via the browser.

3. Differences between client side and server side

The ASP.Net server controls are changed into HTML elements at server side and the changed HTML parts are sent to the browser. To mention, javascript works only on HTML parts, and you must know the HTML element of ASP.Net server control that you are making use of to have the attributes changed.

Now we conclude. Keep coding!!

If you want to enhance yourself in Dot Net Course and improve yourself through Dot NET training program; our institute CRB Tech Solutions would be of great help and support. We offer well structured program for the Best Dot Net Training course.

Stay connected to with us for your technical up-gradation and to remain updated with all the happenings in the world of .Net.

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The Use Of Validation Groups Inside ASP.NET User Controls

What does Validation groups do? Well, they permit you to validate data entry controls in the groups. Server controls like validation controls, Button and TextBox have ValidationGroup attributes that have a string value.

The Use Of Validation Groups Inside ASP.NET User Controls

All the server controls which have the same ValidationGroup value acts as a single validation group. Validation groups are necessary when you want to analyze only a small set of controls from several controls housed on a Web Form. Using validation groups is very easy and straight. But if you have a validation group inside a user control and there are many control instances on a Web Form you come across some problems.

To understand in details let’s develop a simple user control.

The Web Form has two instances of a user control – TestUC.ascx. The user control has a TextBox, a RequiredFieldValidator and a Button. The codes of the user control is shared below:

<asp:TextBox ID=”TextBox1″ runat=”server”></asp:TextBox>

<asp:RequiredFieldValidator ID=”RequiredFieldValidator1″ runat=”server”

ControlToValidate=”TextBox1″ ErrorMessage=”*” Font-Bold=”True”

Font-Size=”30px” ForeColor=”Red”>*</asp:RequiredFieldValidator>

<asp:Button ID=”Button1″ runat=”server” OnClick=”Button1_Click” Text=”Submit” />

<br />

<br />

<asp:Label ID=”Label1″ runat=”server” Font-Bold=”True” ForeColor=”Red”></asp:Label>

The Web Form has two instances of TestUC.ascx as mentioned below:

<%@ Page Language=”C#” … %>

<%@ Register Src=”~/TestUC.ascx” TagPrefix=”uc1″ TagName=”TestUC” %>

<!DOCTYPE html>

<html xmlns=”http://www.w3.org/1999/xhtml”>

<head runat=”server”>

<title></title>

</head>

<body>

<form id=”form1″ runat=”server”>

<uc1:TestUC runat=”server” id=”TestUC1″ />

<br />

<uc1:TestUC runat=”server” id=”TestUC2″ />

</form>

</body>

</html>

If you put the ValidationGroup property of TextBox1, RequiredFieldValidator1 and Button1 to some string (e.g. VG) and then carry out the Web Form you will find that once getting clicked either of the Submit buttons, both the RequiredFieldValidatior controls display an error.

This behavior though not expected but occurs as both the instances of the user control using same ValidationGroup value.

To remove this problem you can take two approaches:

Provide a different and unique ValidationGroup value to the user control from the Web Form

Produce a unique value for ValidationGroup inside the user control

The first solution needs creation of a property (e.g. ValidationGroup) in user control. This attribute will accept a unique string value for the ValidationGroup and will assign to all the other necessary server controls. This is how the property can be developed:

public string ValidationGroup

{

get

{

return Button1.ValidationGroup;

}

set

{

Button1.ValidationGroup = value;

TextBox1.ValidationGroup = value;

RequiredFieldValidator1.ValidationGroup = value;

}

}

As shown, the set block of ValidationGroup attribute assign the given value to the ValidationGroup of Button1, TextBox1 and RequiredFieldValidator1.Once the ValidationGroup property is developed you can set it from the Web Form as given below:

<form id=”form1″ runat=”server”>

<uc1:TestUC runat=”server” id=”TestUC1″ ValidationGroup=”Group1″ />

<br />

<uc1:TestUC runat=”server” id=”TestUC2″ ValidationGroup=”Group2″ />

</form>

The ValidationGroup property of TestUC1 and TestUC2 is set to different and unique values. Now each user controls will work as per expectations.

In the next approach mentioned above you can auto-generate ValidationGroup value within the user control itself. The following code tells you how:

protected void Page_Load(object sender, EventArgs e)

{

if(!IsPostBack)

{

string vgId = Guid.NewGuid().ToString();

Button1.ValidationGroup = vgId;

TextBox1.ValidationGroup = vgId;

RequiredFieldValidator1.ValidationGroup = vgId;

}

}

The above code reveals the Page_Load event handler of the user control. The Page_Load event handler develops a new Guid using Guid.NewGuid() method. Next it sets ValidationGroup property of Button1, TextBox1 and RequiredFieldValidaror1 to this Guid string. Thus, every example of user control gets a unique ValidationGroup value and the Web Form woks as expected.

That’s it for now! Keep coding!!

If you want to enhance yourself in Dot Net Course and improve yourself through Dot NET training program; our institute would be of great help and support. We offer well structured program for the Best Dot Net Course

Stay connected to CRB Tech for your technical up-gradation and to remain updated with all the happenings in the world of Dot Net.

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9 Things To Remember When You Develop A New ASP.NET Web Forms Application

Many developers desire or prefer ASP.NET MVC for their new web applications. But this might not be always possible and you might use Web Forms for your next projects. In such situations developers have a doubt about difficulties during a switch from Web Forms to MVC. If certain guidelines are followed while developing a Web Forms project later migrating to MVC would be hassle free.

9 Things To Remember When You Develop A New ASP.NET Web Forms Application

Here we listed top 9 recommendations in dealing with the similar situation:

1. Take Advantage Of Class Libraries Wherever Possible

Class Libraries are best for writing codes which are independent of any specific type of UI, because they contain mainly POCOs. If you isolate codes in class libraries then reuse during and after migration, it would be quite direct. Of course, you have to design these class libraries in an ordered manner rather than dumping them.

2. Avoid server control level UI properties

One common mistake by beginners is to set UI properties of the server controls. For instance, BackColor, ForeColor, Font-Name and so on. These properties are transformed into style features of the respective control tag. The best approach is to place all such styling information in CSS style sheets and then make use of ClassName property of the server controls to add a CSS class.

3. Use Web API

Web API was presented along with MVC but now it has become a part of ASP.NET framework and you can utilize Web API in Web Forms applications also.

4. Avoid specific features of Web Forms

Web Forms use several features which are specific to Web Forms. These features are not present in MVC. Attributes like Themes and Web Parts fall in this category. Don’t use these attributes for new projects because this will become difficult to migrate them to MVC projects owing to lack of equivalent sets of features.

5. Design forms to avoid ViewState

Many Web Forms developers develop their pages for data entry such that multiple tasks happen on a single page. This might need page ViewState enabled resulting in bulky forms. You must see if such tasks could be done separately into their own pages and try to avoid ViewState totally.

6. Create reusable UI through User Controls

Developers of Web Forms have two choices for creating reusable user interfaces: Web User Controls and Custom Server Controls. If you design Custom Server controls you provide a rich design interface but this control is not easily reusable in MVC.

7. Use standard HTML over server controls

Rich server controls are the best strength of Web Forms applications. Controls like GridView and ListView are very popular. While using the controls ensure the migration path difficulties because there is no straight equivalent in MVC. Though you can’t avoid using them totally try minimizing their use whenever possible.

8. Keep in mind MVC even for Web Forms applications

Web Forms are not designed with MVC design pattern in mind, but you can think in MVC terms as well. The separation of concern (SoC) as put by MVC can be done in Web Forms as well.

9. Learn and make use of Design Patterns and SOLID principles

Make an effort to learn SOLID design principles and commonly used Design Patterns such that you can make your Web Forms applications in a good way.

That’s for now! Keep coding!!

If you want to enhance yourself in Dot Net Course and improve yourself through Dot NET training program; our institute CRB Tech Solutions would be of great help and support.

Stay connected for getting technical up-gradation and to remain updated with all the happenings in the world of .Net.

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Dot NET Application Architecture Guidance

The .NET Team produced several guidance for developing web applications, Microservices and container based applications and Xamarin.Forms mobile apps. You can take advantage of this guidance to help build your applications according to the accepted industry patterns with .NET and C#. You will get the guidance on .NET Application Architecture center.

.NET Application Architecture Guidance

The guidance comes in the format of eBooks and end to end sample reference applications.

There are 2 end-to-end reference architecture applications that the guides make use for examples and that you could use as part of learning and apply your architectural guidance.

The reference applications will show you how to design microservices, web apps and Xamarin.Forms mobile apps.

This blog post will be useful if you are trying to explore about one of the architectural areas and might be not ready to plunge into in-depth guidance.

There are 4 application architecture areas which you could explore:

Microservices and Docker containers: Architecture, Patterns and Development Guidance

Web Applications with ASP.NET Core Architecture and Patterns Guidance

Production Ready Cloud applications with Azure Architecture Guidance

Mobile Apps with Xamarin.Forms Architecture and also Patterns guidance

What’s next for Architectural Guidance!

The guides and samples are only the first part of the guidance. You must have noticed that there is an important area which is missing on the architecture page. Hence, the VS Tools for UWP team and the Windows team are sincerely working on comparable guidance for desktop apps, we shall keep updating on the same.

In addition, there are advances in other efforts related to “Production Ready Cloud Applications based on Azure”.

The Xamarin team is also trying to evolve the Xamarin.Forms guidance while releasing new updates in the product.

As we mentioned in the beginning of the blog post, check out the center page for .NET Application Architecture Centre, download the several eBooks/Guides and see the reference applications from there.

We conclude with this. Keep visiting us to know more about the Asp.Net World. It’s really vast and expanding.

That’s it for now!

Keep coding!

If you want to enhance yourself in Dot Net Course and improve yourself through Dot NET training program; our institute would be of great help and support. We offer well structured program for the Best Dot Net Training Course. Among many reputed institutes of dot net training and placement in Pune, CRB Tech has created a niche for itself.

Stay connected to CRB Tech for your technical up-gradation and to remain updated with all the happenings in the world of Dot Net.

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Top 5 Tools For .NET Development

.Net development tools

Could you imagine an artist painting without brushes or Michelangelo sculpturing without chisels? Obviously, no. The fact is similar to web developers who can’t build web apps of enterprise level without the hold of some right tools.

Top 5 Tools for .NET Development

In this article we discuss the top 5 list of helpful tools .Net application development experts are using.

Microsoft Visual Studio Extensions

The Visual Studio is the core web tool for software development programmers’ everyday usage. It gives nearly everything what one might need for development, to test or debug web apps. The current Visual Studio 2013 release is widely used in .Net app development, as well.

NuGet

A free and an open-source package management system focused on developers working on the .NET platform which aims to simplify the incorporation of third party libraries in the .NET app during the development.

Web Essentials

Its name says about it very well. It is an absolutely essential VS plug-in that represents a productivity enhancing tool which helps you write HTML, CSS, JS and LESS faster. The tool’s best attributes are merged into the latest Visual Studio version.

Resharper

It is unfortunately not a free tool but is the best code refactoring and productivity VS plug-in. It adds a great productivity boost to the programming style and allows programmers save their time and effort as it depicts errors in advance.

Other Tools

Version Control Tools

This gives the ability to track the changes made as well as reverse if necessary. They are not only important when maintaining a project history, but are also the basis for team collaboration. You can utilize this tool across your projects irrespective of their size.

Browser Development or Debug Tools

Many of the .Net developers opt to use Chrome with its Developer Tools, and Firefox with its Firebug which permits examination of each aspect on their web page. Likewise, Internet Explorer and some other browsers have their own development and debug tools.

That’s it for now! Keep coding!

If you want to enhance yourself in Dot Net Course and improve yourself through Dot NET training program; our institute would be of great help and support. We offer well structured program for the Best Dot Net Training Course. Among many reputed institutes of dot net training and placement in Pune, CRB Tech has created a niche for itself.

Stay connected to CRB Tech for your technical up-gradation and to remain updated with all the happenings in the world of Dot Net.

Continue reading

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Key Things You Must Know About ASP.NET CORE

ASP.NET core has many benefits like lightweight, able to use Gulp, Bower, and Yeoman, can be developed using a number of text editors like VS Code, Atom, Sublime Text, optimized CLR and so on.

Key Things You Must Know About ASP.NET CORE

Here we discuss a few main benefits :

Benefits of .NET Core -

Independent Platform

This helps them overcome the problems faced by developers while deploying a Linux machine or a Mac machine. The application can be deployed on any OS – windows, mac or Linux. The web server on which the application is hosted is Kestrel.. This server helps the developers to save and refresh to get updates than to compile and debug. To make the developers use any OS to develop the asp.net applications, Microsoft has launched the VS Code that has many of the functions offered in VS but is extremely light weight.

Middleware and Dependency Injection

Dependency injection is significant when developing big applications to keep loose coupling between classes and to provide separation and concerns and most importantly the ability to unit test easily. ASP.NET Core has input the dependency injection into a framework. Using several third party tools, the unit testing can be done well.

Middlewares changes the way a request and response is served. Middlewares can be stacked one above the other and hence when a middleware forwards the request to the next one on the stack, it sees the request.

OpenSource

Another big initiative by Microsoft is to make the ASP.NET Core open source. Since it is an open source, the developer community is improving and the documentation constantly gets updated such that beginners don’t need to spend time searching where to begin.

Simplified Structure and Single Framework

The structure is simplified with no App_Data and App_Start. The Global.asax is replaced by Startup.cs, where all the middleware components will be registered and the start point of the application.

In earlier versions of ASP.NET, to have both MVC and API, we need two types of projects to accomplish it. In the latest version of ASP.NET Core, there is namespace under which both MVC and Web API classes are kept and this would cause lesser confusion for the developers.

Limitations of .NET Core -

Documentation and Tools

It gets updated frequently and any gaps present are being filled. Yet while trying to develop an application and trying to find the root cause for the exception it is very tricky because of the constant updation in the documentation and in the framework. The solution might not work properly because of the changes in the framework.

When to use .NET Core?

Selecting between ASP.NET Core and ASP.NET framework is a purpose based decision.

ASP.NET Core is used when

You try new features in ASP.

You have developers working on Mac and Linux and also intend to deploy it in Mac and Linux machines.

You desire high-performance applications.

You wish to work with containers like Docker for the deployment of the applications.

ASP.NET is used when

You wish to use support and documentation present on the internet.

You want to create an enterprise application that has all the security loopholes and is a big application which uses existing tools and third party apps that are not ported to ASP.NET Core yet.

Conclusion

The features packed inside ASP.NET Core is quite useful and being an open source and platform independent, it attracts several developers to use it. It is developing fast and quite simple as well.

That’s it for now! Keep coding!!

If you want to enhance yourself in Dot Net Course and improve yourself through Dot NET training program; our institute would be of great help and support. We offer well structured program for the Best Dot Net Training Course. Among many reputed institutes of dot net training and placement in Pune, CRB Tech has created a niche for itself.

Stay connected to CRB Tech for your technical up-gradation and to remain updated with all the happenings in the world of Dot Net.

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