A form is the part of an HTML document where input controls (text boxes, check boxes, radio buttons, drop-down lists) are placed.
Create an HTML input page
Razor Example
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | <html>
<body>
@{
if (IsPost) {
string companyname = Request["companyname"];
string contactname = Request["contactname"];
<p>You entered: <br />
Company Name: @companyname <br />
Contact Name: @contactname </p>
}
else
{
<form method="post" action="">
Company Name:<br />
<input type="text" name="CompanyName" value="" /><br />
Contact Name:<br />
<input type="text" name="ContactName" value="" /><br /><br />
<input type="submit" value="Submit" class="submit" />
</form>
}
}
</body>
</html>
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Razor Example - Display Image
Assume that in your There are 3 images in the images folder and you want to display the images dynamically based on the user's selection.
This can be achieved with a simple piece of Razor code.
If you have an image named "Photo1.jpg" in your website's images folder, you can use the HTML 
element to display the image, like this:
1 | <img src="images/Photo1.jpg" alt="Sample" />
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The following example demonstrates how to display an image selected by the user from the following list:
Razor Example
1 | @{var imagePath=""; if (Request["Choice"] != null){imagePath="images/" + Request["Choice"];} } <!DOCTYPE html> <html> <body> <h1>Display Images</h1> <form method="post" action=""> I want to see: <select name="Choice"> <option value="Photo1.jpg">Photo 1</option> <option value="Photo2.jpg">Photo 2</option> <option value="Photo3.jpg">Photo 3</option> </select> <input type="submit" value="Submit" /> @if (imagePath != ""){<p><img src="@imagePath" alt="Sample" /></p>} </form> </body> </html>
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Example Explanation
The server creates a file called Variable of imagePath.
The HTML page has a drop-down list (
