Salesforce is a data-driven platform. So viewing and editing data in its apps is a fundamental requirement. Like the traditional HTML forms, we can create similar forms in Saleforce for editing the data in Salesforce.
The Input forms are created using a Visualforce page. We open a new Visualforce page by using the path Developer Console → File → New → Visualforce Page. We write the code as shown below which uses Contact as the standard controller and the purpose is to edit the values in the 3 fields - Name, Email and Phone.
Upon running the above code for the visualforce page, we get the following output..
But we can improve the above form further by aligning the fields to one column and putting all the input fields and labels into a block. The code given below shows how we add a section and block to the form and also put the fields in one column.
Upon running the above code for the Visualforce page, we receive the following output.