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Share ASP.NET study notes (6) WebPages form

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Release： 2017-05-25 09:16:19
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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

RazorExample

  @{ if (IsPost) { string companyname = Request["companyname"]; string contactname = Request["contactname"]; 
You entered: 
 Company Name: @companyname 
 Contact Name: @contactname 
 } else { 
 Company Name:
 
 Contact Name:
 

  
 } }
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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 HTMLelement to display the image, like this:

Sample
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The following example demonstrates how to display an image selected by the user from the following list:

Razor Example

@{var imagePath=""; if (Request["Choice"] != null){imagePath="images/" + Request["Choice"];} }    
Display Images
 
 I want to see:   @if (imagePath != ""){
Sample
}
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Example Explanation

The server creates a file calledVariableof imagePath.

The HTML page has a drop-down list (