What you usually do is check if the e-mail address syntax is valid.

Excel 2010 provides Data Input Form that helps users fill cells more easily.

There's an easy way to style the error messages, though.

To style the individual error messages that are displayed by .

The first input field is for the "name" data, and the second for the "email" data.

After the input fields, the yii\helpers\Html::submit Button() method is called to generate a submit button.

The page will contain an entry form that has fields (text boxes) where you can enter a movie title, genre, and year.

HTML Tag Reference HTML Event Reference HTML Color Reference HTML Attribute Reference HTML Canvas Reference HTML SVG Reference Google Maps Reference CSS Reference CSS Selector Reference W3.After getting those two pieces of information from the user, the page will echo the entered values back for confirmation.To achieve this goal, besides creating an action and two views, you will also create a model.For illustration, we will use a simple student record sheet that contains names of students and courses.Now we want to populate the data sheet that will show the name and marks secured by each student in respective courses, we can do it in old-orthodox way, but if the datasheet grows bigger in size then scrolling down and across the window to find the records would be difficult to get by.Server side validation is performed by a web server, after input has been sent to the server.Client side validation is performed by a web browser, before input is sent to a web server.You can now test the page by adding a movie but leaving out one or more of the fields.When you do, you see the following error display: You can see that there are error messages, but they don't really stand out very well.Through this tutorial, you will learn how to: , provided in Yii by yii\web\Request::post().If the model is successfully populated (i.e., if the user has submitted the HTML form), the action will call validate() to make sure the values entered are valid.Most often, the purpose of data validation is to ensure correct user input.Validation can be defined by many different methods, and deployed in many different ways.methods of the widget render the opening and closing form tags, respectively.Between the two method calls, input fields are created by the field() method.