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In this article we learnt about WebMatrix, How to install, Creating our very first website in WebMatrix and Razor, Creating a database, Forms, Handling posted data from Forms and Validations. We can also override the message to a custom message by adding a second parameter to method. The helper checks the ModelState object to see if there is any registered error for the field mentioned in the first parameter of the method in case of any fail condition. The can be applied to any field that might failed validation. To show a summary of validation errors we previously added to ModelState object, we used method.Īs you can see, the method generated contains validation-summary-errors class which we can use to define styles and output the errors in different colors and designs. In other words, only save the posted data which are valid. The whole reason for using validation is to save the correct data into database. If no errors occurred, the ModelState.IsValid property will reflect this by returning false. When any validation checks returned true, we can set the error with a message into the ModelSate object. Execute("INSERT INTO articles (title, summary, body, record_date) " summary, body, record_date) ModelState.AddError("Body","Please write something in the body (IsPost & ModelState.IsValid) ModelState.AddError("Summary", "You can't put the article summary empty") ModelState.AddError("Title", "Post title can't be empty") You can use popular open-source programs like DotNetNuke, Umbraco.
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We can use these helper functions in this project. WebMatrix is a free website creation tool that lets you build your domain from scratch based on open-source applications. These functions are: IsBool(), IsDateTime(), IsDecimal(), IsFloat(), and IsInt(). Also there we have functions where we can check if they are in a certain condition. The AsBool(), AsDateTime(), AsDecimal(), AsFloat(), and AsInt() functions are used to convert the current data type to (AS) new type. In Razor, there are multiple helper functions which will help do validation in form operations. Validation can be as simple as requiring that a form field not be empty, that the field be a certain type, or that a value fall within a particular range. Validation is an important and vital part of form and data process in web platforms. title = Request Īfter getting the posted data into variables and after checking that if they are really coming from a post request, we can start writing our SQL queries to insert these data into database. In this project, we submit it back to the page itself and will extract the data posted from request object to variables and will query an insert query to save it. We used the POST method to submit the page data.
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As you may already know, in order to get and save some information as an input, we generally use a form.