Validating a group of checkboxes in asp net
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Step 3 - Installing package for EF Core, from Nu Get To install the package, just right click on the project (MVCCore2) and then, select "Manage Nu Get package". Step 4 - Adding connection string and setting up Db Context.
After choosing project template, next we are going to name the project as “MVCCore2” and finally, click on OK button to create a project. After creating application, next we are going to add the reference needed for Entity Framework Core. Sql Server” and just click on Install button to install.
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These action methods handle the GET and POST request the normal way simultaneously.
NET MVC do not have any helper method for Checkbox list. If I use this helper method for multiple checkboxes, I am going to end up with an extra hidden input for each input field with values true/false and it will be double trouble for me.
Follow the following steps for validating checkbox in mvc razor.
public class Registration Model //Making Custom attribute for validating checkbox // IClient Validatable for client side Validation public class Must Be True Attribute : Validation Attribute, IClient Validatable Now, you have applied the custom validation to the checkbox. Below is the complete project view for the newly created project.