The code creates an IQueryable variable before the switch statement, modifies it in the switch statement, and calls the ToListAsync method after the switch statement. Replace the EditPost method with the following code, which calls a new method that updates the Courses navigation property of the Instructor entity. To support the [ProducesResponseType] decoration, the Swashbuckle.AspNetCore.Annotations package offers extensions to enable and enrich the response, schema, and parameter metadata. The column header links use the query string to pass the current search string to the controller so that the user can sort within filter results: The paging buttons are displayed by tag helpers: Click the paging links in different sort orders to make sure paging works. The result would normally be the same but in some cases may be different. If the number of courses were much greater, you would probably want to use a different method of presenting the data in the view, but you'd use the same method of manipulating navigation properties in order to create or delete relationships. Unit Test I have written the Unit test case, which returns 200 with the response body. Specify multiple warning codes with a comma-delimited list. To create efficient lookup when checking whether a course is assigned to the instructor, the courses assigned to the instructor are put into a HashSet collection. ASP.NET Core supports returning the ActionResult type from Web API controller actions. ActionResult Return Type. The code in the PopulateAssignedCourseData method reads through all Course entities in order to load a list of courses using the view model class. routes.MapRoute( (For example, suppose you change the reference to _context.Students so that instead of an EF DbSet it references a Microsoft Edge WebRemarks. This tutorial explains how you can prevent open redirection attacks in your ASP.NET MVC applications. The search string is changed when a value is entered in the text box and the Submit button is pressed. In the previous tutorial, you implemented a set of web pages for basic CRUD operations for Student entities. For example, use https://localhost://swagger/v1/swagger.json instead of https://localhost:///swagger/v1/swagger.json. In the previous tutorial you displayed related data. The code for Resetting password is as below: public ActionResult bool resetResponse = WebSecurity.ResetPassword(model.ReturnToken, The generated document describing the endpoints appears as shown in OpenAPI specification (openapi.json). To add paging to the Students Index page, you'll create a PaginatedList class that uses Skip and Take statements to filter data on the server instead of always retrieving all rows of the table. WebAPI ; GET /api/todoitems: : None: : GET /api/todoitems/{id} ID : None Advance to the next tutorial to learn how to handle data model changes by using migrations. You'll use the scaffolded code, but change it slightly to add error handling and sort the drop-down list. ActionResult IActionResult. {, countryCode) The first time the Index page is requested, there's no query string. }; The drop-down list sets the Course.DepartmentID foreign key property, and that's all the Entity Framework needs in order to load the Department navigation property with the appropriate Department entity. name: }); That setting defaults to case-insensitive. APIoverride OnAuthorization() 401. [Route(, IActionResult About() That would prevent the optimizer from using an index. Notice that the URL contains the search string. { When the page is posted, the model binder passes an array to the controller that consists of the CourseID values for only the check boxes which are selected. This is how the forgot password page looks .The user needs to enter the registered and valid email id on which the reset link will be sent. User needs to enter the new password in the below page to reset it. The ViewData element named CurrentSort provides the view with the current sort order, because this must be included in the paging links in order to keep the sort order the same while paging. MVC Upload File Home public ActionResult The two ViewData elements (NameSortParm and DateSortParm) are used by the view to configure the column heading hyperlinks with the appropriate query string values. The element content can consist of text, JSON, or XML. In the preceding code, Reflection is used to build an XML file name matching that of the web API project. In Views\Instructor\Index.cshtml, add a Courses heading immediately following the Office heading, as shown in the following example: Then add a new detail cell immediately following the office location detail cell: Run the Instructor Index page to see the courses assigned to each instructor. You can't perform eager loading with the Find method, so the Where and Single methods are used instead to select the instructor. This requires grouping and simple calculations on the groups. By default, Swashbuckle generates and exposes Swagger JSON in version 3.0 of the specificationofficially called the OpenAPI Specification. You'll fix that in the next section. (For example, suppose you change the reference to _context.Students so that instead of an EF DbSet it references a repository method that returns an IEnumerable collection.) As you know, an action is referred to as a method of the controller, the Action Result is the result of action when it executes. routes.MapRoute( "PleasefindthePasswordResetLink. The response types and error codes are denoted in the XML comments and data annotations. The default UI is both functional and presentable. The Swagger UI can be found at http://localhost:/swagger. If the office location is blank, sets the Instructor.OfficeAssignment property to null so that the related row in the OfficeAssignment table will be deleted. When you specify HTTP GET, the form data is passed in the URL as query strings, which enables users to bookmark the URL. { The last tutorial in this series shows how to write code that lets you pass the name of the OrderBy column in a string variable. In the last tutorial you'll add code that prevents that scenario from happening. Therefore, this code results in a single query that's not executed until the return View statement. File selection isn't cumulative when using an InputFile component or its underlying HTML element and provides a more robust Swagger UI. In this article. Here you are calling the Where method on an IQueryable object, and the filter will be processed on the server. Can be applied to a class or a method parameter. By default, Swashbuckle generates and exposes Swagger JSON in version 3.0 of the specificationofficially called the OpenAPI Specification. Using /swagger/v1/swagger.json instructs the app to look for the JSON file at the true root of the URL (plus the route prefix, if used). { However, API documentation pages should represent your brand or theme. In this article we will see how to reset the password through the forgot password page in MVC. Explore the API via Swagger UI and incorporate it in other programs. You've added a searchString parameter to the Index method. Therefore you need to exclude the Courses property from model binding. If the check box for a course wasn't selected, but the course is in the Instructor.Courses navigation property, the course is removed from the navigation property. The search string value is received from a text box that you'll add to the Index view. In this article, we will see how to reset the password through forgot password page in MVC. [Bind] does not affect input formatters. Note: The approach taken here to edit instructor course data works well when there is a limited number of courses. WebI had the same problem. There's already a hidden field (Html.HiddenFor helper) for the course number in the Edit view. If targeting .NET Framework or .NET Core 1.x, add the Microsoft.AspNetCore.StaticFiles NuGet package to the project: The preceding NuGet package is already installed if targeting .NET Core 2.x and using the metapackage. That would ensure that results stay the same if you change the code later to use a repository which returns an IEnumerable collection instead of an IQueryable object. This code adds a page number parameter, a current sort order parameter, and a current filter parameter to the method signature. In this Unit test, I have GET content result, using OkNegotiatedContentResult and I check whether the return object has the same departmentId. For more information, see Use web API conventions. There are three main components to Swashbuckle: Swashbuckle.AspNetCore.Swagger: a Swagger object model and middleware to expose SwaggerDocument objects as JSON endpoints. To facilitate efficient lookups, the latter two collections are stored in HashSet objects. In the following example, only the specified properties of the Instructor model are bound when any handler or action method is called: [Bind("LastName,FirstMidName,HireDate")] public class The changes you make are reflected on the Index page. Create a view model class for the data that you need to pass to the view. In StudentsController.cs, replace the Index method with the following code: This code receives a sortOrder parameter from the query string in the URL. Note: The user should be a already-registered user. For most relationships, this can be done by updating either foreign key fields or navigation properties. Alternatively, convenience methods in the ControllerBase class can be used to return ActionResult types from an action. This code doesn't handle the scenario of one instructor assigned as administrator for multiple departments. The TryUpdateModel overload used enables you to list the properties you want to include. To inject additional CSS stylesheets, add them to the project's wwwroot folder and specify the relative path in the middleware options: View or download sample code (how to download), Navigate to the directory in which the TodoApi.csproj file exists. }, HomeController : Controller This doesn't require any change to the code that calls TryUpdateModel because you're using the explicit list overload and Courses isn't in the include list. The query isn't executed until you convert the IQueryable object into a collection by calling a method such as ToListAsync. The null-coalescing operator defines a default value for a nullable type; the expression (pageNumber ?? The CreateAsync method in this code takes page size and page number and applies the appropriate Skip and Take statements to the IQueryable. Fix that problem by adding the highlighted lines in the following example: The Swagger UI now clearly documents the expected HTTP response codes: Conventions can be used as an alternative to explicitly decorating individual actions with [ProducesResponseType]. On clicking the above link you will be redirected to a reset password page with the return/ reset token. Some common return types in this category are BadRequestResult (400), NotFoundResult (404), and OkObjectResult (200). {, controller.ControllerTypeInfo -> "My.Application.Admin.UsersController", baseNamespace -> "My.Application", template => "Admin/[controller]", StringBuilder(); For Linux or non-Windows operating systems, file names and paths can be case-sensitive. You've also added to the LINQ statement a where clause that selects only students whose first name or last name contains the search string. name: { Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Added office location and courses to the Create page. To add sorting to the Student Index page, you'll change the Index method of the Students controller and add code to the Student Index view. Here you are calling the Where method on an IQueryable object, and the filter will be processed on the server. Given that SQL is mostly installed as case-insensitive, it's best to avoid the ToUpper code until you migrate to a case-sensitive data store. }, HomeController : Controller Advance to the next article to learn how to implement an asynchronous programming model. The ToUpper code would put a function in the WHERE clause of the TSQL SELECT statement. In Views\Instructor\Edit.cshtml, add a Courses field with an array of check boxes by adding the following code immediately after the div elements for the OfficeAssignment field and before the div element for the Save button: After you paste the code, if line breaks and indentation don't look like they do here, manually fix everything so that it looks like what you see here. The Swagger UI can be found at https://localhost:/swagger. In the project folder, create PaginatedList.cs, and then replace the template code with the following code. More info about Internet Explorer and Microsoft Edge, Swagger doesn't recognize comments or attributes on records, Improve the developer experience of an API with Swagger documentation, Ensure the "Include prerelease" option is enabled, Enter "Swashbuckle.AspNetCore" in the search box, Select the latest "Swashbuckle.AspNetCore" package from the, Ensure the "Show pre-release packages" option is enabled, Select the latest "Swashbuckle.AspNetCore" package from the results pane and click, Manually add the highlighted lines to the. _countryCode, Accept(ActionConstraintContext context) More info about Internet Explorer and Microsoft Edge. For example, ./swagger/v1/swagger.json. For a list of all available methods and properties, see ControllerBase.. Add a element above the Delete action: The Swagger UI displays the inner text of the preceding code's element: The UI is driven by the generated JSON schema: Add a element to the Create action method documentation. The two question marks represent the null-coalescing operator. For scenarios where you need more control -- for example, if you want to include operations done outside of Entity Framework in a transaction -- see Working with Transactions on MSDN. The Instructor entity has a one-to-zero-or-one relationship with the OfficeAssignment entity, which means you must handle the following situations: Open InstructorController.cs and look at the HttpGet Edit method: The scaffolded code here isn't what you want. In this case you don't need to use the ViewBag object, because the information you want to display is already in the Courses navigation property of the Instructor entity that you're passing to the page as the model. Finally, the list is passed to the view in a ViewBag property. When ToListAsync is called on the IQueryable, it will return a List containing only the requested page. The above code will send a reset link on the registered email.Once the mail is received the user needs to click on the reset link which will redirect the user to the reset password page. In this article. Swashbuckle can be added with the following approaches: Go to View > Other Windows > Package Manager Console, Navigate to the directory in which the .csproj file exists. When the check boxes are initially rendered, those that are for courses assigned to the instructor have checked attributes, which selects them (displays them checked). Next, add the code that's executed when the user clicks Save. The Course Index page is displayed with the updated course data. The code for Resetting password is as below: The Return token in WebSecurity in Mvc helps in replacing the old password with the new one. which handles office assignment updates: The reference to RetryLimitExceededException requires a using statement; to add it - hover your mouse over RetryLimitExceededException. While using the ActionResult, we can either return an ActionResult type or a specific type. } For many-to-many relationships, the Entity Framework doesn't expose the join table directly, so you add and remove entities to and from the appropriate navigation properties. However, there's a performance penalty for this solution. 2022 C# Corner. For more information, see Swashbuckle, ApiExplorer, and Routing. Add the multiple attribute to permit the user to upload multiple files at once.. This approach is useful for code that shouldn't be exposed via the API docs. That single page of students is then passed to the view. After changing course assignments, you'll want to be able to verify the changes when the site returns to the Index page. ViewData[, Configure(IApplicationBuilder app, IHostingEnvironment env) The properties HasPreviousPage and HasNextPage can be used to enable or disable Previous and Next paging buttons. Notice that in order to be able to add courses to the Courses navigation property you have to initialize the property as an empty collection: As an alternative to doing this in controller code, you could do it in the Instructor model by changing the property getter to automatically create the collection if it doesn't exist, as shown in the following example: If you modify the Courses property in this way, you can remove the explicit property initialization code in the controller. In the previous tutorial you displayed related data. If the check box for a course was selected but the course isn't in the Instructor.Courses navigation property, the course is added to the collection in the navigation property. Download or view the completed application. It's typically Below is the code of the forgot password action method, In this article we are using gmail for sending the reset link which requires some settings on the web.config file (the settings are given below the methods).The below method is used to fetch those settings from the web.config file. { In this tutorial, Stephen Walther explains how you can maintain a sharp separation of concerns by isolating your service layer from your controller layer. This code uses the
