Need to Know RoleManager Asp.Net Core 2019

Asp.net-core By Sagar Jaybhay

Previous article links :- https://sagarjaybhay.com/asp-net-core/ RoleManager In Asp.Net Core For this, we have a RoleManager class to Create Read Update Delete The roles and we use this conjunction with userManager class and for this, we have to pass IdentityUser object. For saving role identity created one table for it in a database which is the AspNetRoles table. First, we create a view model for creating role and for that we create rolename field in our model. After this, we create a view for that and in this view, we use…

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Custom Validation Attribute Asp.Net Core 2019

Asp.net-core By Sagar Jaybhay

Complete Asp.Net Core Tutorial Step By Step :-https://sagarjaybhay.com/asp-net-core/ How to Create Custom Validation Attrbute Asp.Net Core? Built-in Validation Attribute Required Range StringLength RegularExpression Compare Etc.. When in your project we have some requirements that can not be full fill with some in-built validation attributes then we need to create some Custom validation attribute. In this, we have created one CustomValidator class which inherits from ValidationAttribute inbuilt class. After inheriting from this we need to override the IsValid method. Now in our example, we have to achieve the functionality of we…

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How to implement Client-Side Validation in Asp.net Core?

Asp.net-core By Sagar Jaybhay

Client-Side Validation – By Sagar Jaybhay A client-side validation means validation perform on client machine or in browser of client. First, server-side validation is performed or validate using Validation attributes like Required, String Length, etc. But when we perform server-side validation there is a round trip to a server over the network. In such situation if our server is busy with another heavy processing task or either busy to serve another request so it will send result to user but it required some time and if your application needs to…

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What Is an Open Redirection Vulnerability & How to Prevent it?

Asp.net-core By Sagar Jaybhay

Open Redirection An Open Redirection is when a web application or server uses a user-submitted link to redirect the user to a given website or page. How I identify is my application vulnerable or not? If your application redirects to URL which is directly given by user that’s specified via the request such as query string or form data. The redirection is performed without checking if the URL is a local URL. Below is the code for that In this code we pass this URL directly to the Redirect we…

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How to show Hide login and logout link on the basis of user login or not in asp.net core?

Asp.net-core By Sagar Jaybhay

Show Hide Login Logout Link on basis of user login or not To perform login and logout we use the SignInManager class in asp .net core identity. We have to add a logout functionality button in the layout view so we need to insert SignInManager instance into _Layout view by using dependency injection. To insert instance in layout or razor view we use @inject Need to add this _Layout view. But we need to move using statement in a central file which is ViewImport file and we add this using…

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How to Customize default password complexity rules in asp.net core?

Asp.net-core By Sagar Jaybhay

Asp.net core never allows you to create a simple password because it is easily crack able and also to restrict brute force attacks. Suppose you enter some simple password like abcd it will throw an error. Passwords must be at least 6 characters. Passwords must have at least one non alphanumeric character. Passwords must have at least one digit (‘0’-‘9’). Passwords must have at least one uppercase (‘A’-‘Z’). Check this link:- https://github.com/aspnet/AspNetCore/blob/master/src/Identity/Extensions.Core/src/PasswordOptions.cs So if want to change this default behavior you need to do these changes in configure service method…

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