Hi all,
I am new to ajax. I was trying to run an example but i am not able to
get the values to the calling page.
I am attaching the snippet of code I have written:
<html xmlns="http://www.w3.org/1999/xhtml"; >
<head runat="server">
<title>Untitled Page</title>
<script language="javascript" type="text/javascript">
function showHint(str)
{
if (str.length == 0)
{
documeny.getElementById("txtHint").innerHTML = ""
return
}
xmlHttp = GetXmlHttpObject()
if (xmlHttp == null)
{
alert("Browser doesn't support HTTP Request");
return
}
var url = "GetHint.aspx"
url = url + "?q=" + str
url = url + "&sid=" + Math.random()
alert(url)
xmlHttp.onreadystatechange =stateChanged
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function stateChanged()
{
if ((xmlHttp.readyState == 4) || (xmlHttp.readyState ==
"completed"))
{
document.getElementById("txtHint").innerHTML =
xmlHttp.resposeText
}
}
function GetXmlHttpObject()
{
var objXMLHttp = null
if (window.XMLHttpRequest)
{
objXMLHttp = new XMLHttpRequest()
}
else if(window.ActiveXObject)
{
objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP")
}
return objXMLHttp;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
First Name: <input type="text" id="txt1"
onkeyup="showHint(this.value)" />
</div>
</form>
<p>Suggestions: <span id="txtHint"></span></p>
</body>
</html>
In the called page I am writing the code like this
protected void Page_Load(object sender, EventArgs e)
{
string[] arr;
arr = new string[30];
// Fill up the array
arr[1] = "Anna";
arr[2] = "Brittany";
arr[3] = "Cinderella";
arr[4] = "Diana";
arr[5] = "Eva";
arr[6] = "Fiona";
arr[7] = "Gunda";
arr[8] = "Hege";
arr[9] = "Inga";
arr[10] = "Johanna";
arr[11] = "Kitty";
arr[12] = "Linda";
arr[13] = "Nina";
arr[14] = "Ophelia";
arr[15] = "Petunia";
arr[16] = "Amanda";
arr[17] = "Raquel";
arr[18] = "Cindy";
arr[19] = "Doris";
arr[20] = "Eve";
arr[21] = "Evita";
arr[22] = "Sunniva";
arr[23] = "Tove";
arr[24] = "Unni";
arr[25] = "Violet";
arr[26] = "Liza";
arr[27] = "Elizabeth";
arr[28] = "Ellen";
arr[29] = "Wenche";
arr[30] = "Vicky";
// Get the q parameter from URL
string q = Request.QueryString["q"].ToUpper();
string hint = string.Empty;
// Look up all hints from array if length of q > 0
if (q.Length > 0)
{
for (int i = 1; i <= 30; i++)
{
if (q == (arr[i].Substring(1, q.Length)).ToUpper())
{
if (hint == "")
{
hint = arr[i];
}
else
{
hint = hint + " , " + arr[i];
}
}
}
}
// Output "no suggestion" if no hint where found
// or output the correct values
if (hint == "")
{
Response.Write("no suggestion");
}
else
{
Response.Write(hint);
}
}
It may sound foolish for asking such simple question but I am really
astounded by capabilities of AJAX.
Please let me know what is the mistake that I am making.
Regards
Deepak Sinha
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