The error I get is:
Line 78
Char 7
Error: Object Required
Code: 0
The HTML is:
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<HTML>
<HEAD>
<title>Ajax</title>
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" content="Visual Basic .NET 7.1">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="
http://schemas.microsoft.com/intellisense/ie5">
<script type="text/javascript" src="quickstart.js"></script>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<P>
<TABLE id="Table1" cellSpacing="1" cellPadding="1" width="75%" border="1">
<TR>
<TD>
<P>
<INPUT type="text" id="TextBox1" onblur='process()'>
</P>
</TD>
</TR>
<TR>
<TD><div id="showresults" />
</TD>
</TR>
<TR>
<TD>
<asp:Button id="Button1" runat="server" Text="Button"></asp:Button>
</TD>
</TR>
</TABLE>
</P>
</form>
</body>
</HTML>
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The .js file is:
// stores the reference to the XMLHttpRequest object
var xmlHttp = createXmlHttpRequestObject();
// retrieves the XMLHttpRequest object
function createXmlHttpRequestObject()
{
// will store the reference to the XMLHttpRequest object
var xmlHttp;
// if running Internet Explorer
if(window.ActiveXObject)
{
try
{
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e)
{
xmlHttp = false;
}
}
// if running Mozilla or other browsers
else
{
try
{
xmlHttp = new XMLHttpRequest();
}
catch (e)
{
xmlHttp = false;
}
}
// return the created object or display an error message
if (!xmlHttp)
alert("Error creating the XMLHttpRequest object.");
else
return xmlHttp;
}
// make asynchronous HTTP request using the XMLHttpRequest object
function process()
{
// proceed only if the xmlHttp object isn't busy
if (xmlHttp.readyState == 4 || xmlHttp.readyState == 0)
{
// retrieve the name typed by the user on the form
varWBS = encodeURIComponent(document.getElementById("TextBo x1").value);
// execute the quickstart.php page from the server
xmlHttp.open("GET", "quickstart.aspx?WBS=" + varWBS, true);
// define the method to handle server responses
xmlHttp.onreadystatechange = handleServerResponse;
// make the server request
xmlHttp.send(null);
}
else
// if the connection is busy, try again after one second
setTimeout('process()', 1000);
}
// executed automatically when a message is received from the server
function handleServerResponse()
{
// move forward only if the transaction has completed
if (xmlHttp.readyState == 4)
{
// status of 200 indicates the transaction completed successfully
if (xmlHttp.status == 200)
{
// extract the XML retrieved from the server
xmlResponse = xmlHttp.responseXML;
// obtain the document element (the root element) of the XML structure
xmlDocumentElement = xmlResponse.documentElement;
// get the text message, which is in the first child of
// the the document element
helloMessage = xmlDocumentElement.firstChild.data;
// update the client display using the data received from the server
document.getElementById("showresults").innerHTML = helloMessage ;
// restart sequence
setTimeout('process()', 1000);
}
// a HTTP status different than 200 signals an error
else
{
alert("There was a problem accessing the server: " + xmlHttp.statusText);
}
}
}
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The requested page, quickstart.aspx, code behind is:
Try
sCon1.Open()
Dim strRQ As String = Server.HtmlEncode(Request.QueryString("WBS")).ToSt ring()
Dim strSQL As String = "Select count(*) from Table where [Number] = '" & strRQ & "'"
Dim cmd As New SqlCommand(strSQL, sCon1)
Dim intCnt As Integer = cmd.ExecuteScalar()
sCon1.Close()
Response.Write(intCnt)
Catch ex As Exception
Response.Write(ex)
Finally
sCon1.Close()
End Try
