Skip to main content

Difference Between Dynamic and Object Keyword in C#

The dynamic keyword and objects don't perform compile-time type checks and identify the type of objects at runtime only and both can store any type of the variable. Objects were introduced in 1.0 C#. Later, why was Dynamic introduced in 4.0 C# when Objects already exist.

Difference 1 :

Object: the Compiler has little information about the type. It's not compiler safe.
You need to do an explicit type casting every time you want to get the value back and forth.

object  a = "Nikhil Sangani";
string a1 = a.ToString();

Dynamic: In a dynamic variable, the compiler doesn't have any information about the type of variable.

dynamic  a = "Nikhil Sangani";
string a1 = a;

Difference 2 :

Object: When using an object, you need to cast the object variable to the original type to use it and do the desired operations. In the first difference, the following example shows an error.

object  a = "Nikhil Sangani";
string a1 = a;

Now you need to do an explicit type casting every time.

Dynamic: Casting is not required but you need to know the properties and methods related to the stored type.

The Object is useful when we don't have more information about the data type. Dynamic is useful when we need to code using reflection or dynamic languages or with the COM objects and when getting a result out of the LINQ queries.
Labels:
Location: Ahmedabad, Gujarat, India

Comments

Post a Comment

Popular posts from this blog

How To See Logs Of Dropped Tables From The Database in MS SQL.

Here, I will explain you how you can see logs of users. Step 1 : First, create a new database with name "test". Step 2 : Create a new table. Step 3 : Now, go and drop the table by running the following command. Step 4 : Now, select your database under Object Explorer and go to Reports >> Standard Reports >> Schema Changes History. Step 5 : You will then see the schema change history. The report will show you who has dropped this table. Finally, you can locate the user activity with the help of log.
Post a Comment
Read more

How To Deploy .net Core Application On Linux

Here, I can explain steps to deploy .net core application on linux machine. Step 1 - Publish your .net Core application: First, create a .net core application on VS; you can make an MVC project or Web API project and if you already have an existing project, then open it. Right Click on your project Click on publish Now create a new publish profile, and browse the folder where you want to publish your project dll Click on publish so it will create your dll in the folder Step 2 - Install required .net Module on Linux: Now we have our web application dll and now we need to host it on the Linux environment. First, we need to understand how the deployment works in Linux. .Net applications run on Kestrel servers and we run Apache or Nginx server in Linux environments, which acts as a proxy server and handles the traffic from outside the machine and redirects it to the Kestrel server so we will have Apache or Nginx server as the middle layer. In this article, we will use Apache as a proxy ser
Post a Comment
Read more

List Of Commonly Used Angular Commands

1) To get the npm version,    npm -v 2) To get the node version,    node -v 3) To get the Angular version,    ng v  4) To get the Jasmine version,    jasmine -v  5) To get the Karma version,    karma --version  6) To install Angular CLI,    npm install @angular/cli -g   npm install @angular/cli 7) To install the next version of Angular CLI, v   npm install @angular/cli@next  8) To get help in the terminal,    ng help 9) To create a new project in Angular,    ng new project-name  10) To skip external dependencies while creating a new project,    ng new project-name --skip-install  11) To run the Angular project,   ng serve (or) npm start (or) ng serve --force  12) Dry Run,   ng new project-name --dry-run 13) To create a new component in the Angular Project,   ng generate component component-
Post a Comment
Read more