File browse image Ajax instant display of this image

Ajax is not a new programming language, but a new method that uses existing standards. Ajax is the art of exchanging data with the server and updating some webpages without reloading the entire page.

Today, I wrote another file to upload, browse, and click "OK" to display the image in time. (Here I write another Div and dynamically add an IMG to this Div to display the uploaded image ),

Front-end HTML code:

An ajaxfileupload. js file used. It is downloaded from the Internet.

Script:

Here is to verify the format of the previous image. upworkvaliduser. ashx is to verify that the user is logged on... I will not take it out.

 

 

Upwork. aspx:

 

 

I have qq357253950. if you have any questions, please feel free to contact me.