Step 1:
Create index.html and implement below code.
<h2>Suggestions: <span id="demo"></span></h2> <p>First name: <input class="form-control" type="text" id="txt1" onkeyup="showHint(this.value)"></p>
Step 2:
Create asp file as getdata.asp file and implement below code in it.
<% response.expires=-1 dim a(30) 'Fill up array with names a(1)="Anna" a(2)="Brittany" a(3)="Cinderella" a(4)="Diana" a(5)="Eva" a(6)="Fiona" a(7)="Gunda" a(8)="Hege" a(9)="Inga" a(10)="Johanna" a(11)="Kitty" a(12)="Linda" a(13)="Nina" a(14)="Ophelia" a(15)="Petunia" a(16)="Amanda" a(17)="Raquel" a(18)="Cindy" a(19)="Doris" a(20)="Eve" a(21)="Evita" a(22)="Sunniva" a(23)="Tove" a(24)="Unni" a(25)="Violet" a(26)="Liza" a(27)="Elizabeth" a(28)="Ellen" a(29)="Wenche" a(30)="Vicky" 'get the q parameter from URL q=ucase(request.querystring("q")) 'lookup all hints from array if length of q>0 if len(q)>0 then hint="" for i=1 to 30 if q=ucase(mid(a(i),1,len(q))) then if hint="" then hint=a(i) else hint=hint & " , " & a(i) end if end if next end if 'Output "no suggestion" if no hint were found 'or output the correct values if hint="" then response.write("no suggestion") else response.write(hint) end if %>
Step 3:
Now Implement java script to access asp file data.
<script> function showHint(str) { var xhttp; if (str.length == 0) { document.getElementById("txtHint").innerHTML = ""; return; } xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { document.getElementById("demo").innerHTML = this.responseText; } }; xhttp.open("GET", "gethint.asp?q="+str, true); xhttp.send(); } </script>
Code explanation:
First, check if the input field is empty (str.length == 0). If it is, clear the content of the txtHint placeholder and exit the function.
However, if the input field is not empty, do the following:
Complete Code For Accessing Data From ASP Files Using JS AJAX
<!DOCTYPE html> <html> <head> <title>How Can I Access Data From ASP Files Using JS AJAX</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css"> </head> <body> <div class="container"> <br> <div class="text-center"> <h1 id="color" style="color: tomato">How Can I Access Data From ASP Files Using JS AJAX</h1> </div> <div class="well"> <h2>Suggestions: <span id="demo"></span></h2> <p>First name: <input class="form-control" type="text" id="txt1" onkeyup="showHint(this.value)"></p> <script> function showHint(str) { var xhttp; if (str.length == 0) { document.getElementById("txtHint").innerHTML = ""; return; } xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { document.getElementById("demo").innerHTML = this.responseText; } }; xhttp.open("GET", "getdata.php?q="+str, true); xhttp.send(); } </script> </div> </div> </body> </html>