hi.
for some reason i am not able to navigate the dom.
i keep getting the 'no properties' error but i think i
am doing everything right. this is an XML response
from an AJAX call.
The ajax method to call the server code looks like this.
i am passing a cookie as a parameter:
Code:
var stockquote = get_cookie("sto ckquote");
ajaxSend('GET', 'data.aspx',sto ckquote, dataResponseHan dler, false);
the code coming from the server looks like this:
Code:
Public Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Dim con As System.Data.Sql Client.SqlConne ction = New
System.Data.Sql Client.SqlConne ction(connectio n stuff...)
Dim editcriteriacmd As System.Data.Sql Client.SqlComma nd = New
Data.SqlClient. SqlCommand(sele ct statement stuff..., con)
con.Open()
'EDITPROFILE STUFF
Dim edit_dr As Data.SqlClient. SqlDataReader =
editcriteriacmd .ExecuteReader( Data.CommandBeh avior.CloseConn ection)
'main declarations
dim sex as string
dim age_frm as string
dim age_to as string
dim type as string
[SNIP]
If edit_dr.HasRows Then
While edit_dr.Read
sex = edit_dr.Item("s ex").ToString ()
age_frm = edit_dr.Item("a ge1").ToString( )
age_to = edit_dr.Item("a ge2").ToString( )
type = edit_dr.Item("t ype").ToString( )
[SNIP]
End While
End If
edit_dr.Close()
Dim sbhtml As New System.Text.Str ingBuilder
sbhtml.Append(" <?xml version='1.0' encoding='ISO-8859-1'?>")
sbhtml.Append(" <search>")
sbhtml.Append(" <sex>")
sbhtml.Append(s ex.ToString)
sbhtml.Append(" </sex>")
sbhtml.Append(" <agefrom>")
sbhtml.Append(a ge_frm.ToString )
sbhtml.Append(" </agefrom>")
sbhtml.Append(" <ageto>")
sbhtml.Append(a ge_to.ToString)
sbhtml.Append(" </ageto>")
sbhtml.Append(" <type>")
sbhtml.Append(t ype.ToString)
sbhtml.Append(" </type>")
[SNIP]
sbhtml.Append(" </search>")
Context.Respons e.ContentType = "text/xml"
Response.Write( sbhtml.ToString )
End Sub
the response is parsed in the dataResponseHan dler function.
Code:
function dataResponseHan dler(ajaxReques t)
{ //1
// if xmlhttp shows "loaded"
if (ajaxRequest.re adyState==4)
{ //2
// if "OK"
if
(ajaxRequest.st atus==200)
{ //3
try { //4
//UNCOMMENT FOR
ERROR CHECKING - RESPONSETEXT IN NEW WINDOW
//var doc =
ajaxRequest.res ponseText;
//
doc=doc.replace (/</g, '<').replace(/\>/g, '>');
//childWin=window .open("", "childwin") ;
//childWin.docume nt.write("<pre> "+doc+"</pre>");
//childWin.docume nt.close();
var dom =
parse(ajaxReque st.responseText );
var search =
dom.getElements ByTagName('sear ch').item(0);
if (search) {
alert("search has something") } else { alert("search is empty"); }
var sex;
var age_frm;
var age_to;
var type;
[SNIP]
if
(search.getElem entsByTagName(" sex")[0].nodeValue != "") {
sex =
search.getEleme ntsByTagName("s ex")[0].nodeValue;
alert("sex:
"+sex);
}
if
(search.getElem entsByTagName(" age_frm")[0].firstChild.nod eValue != "")
{
age_frm =
search.getEleme ntsByTagName("a ge_frm")[0].firstChild.nod eValue;
alert("agef: "+age_frm);
}
if
(search.getElem entsByTagName(" age_to")[0].firstChild.nod eValue != "") {
age_to =
search.getEleme ntsByTagName("a ge_to")[0].firstChild.nod eValue;
alert("aget: "+age_to);
}
if
(search.getElem entsByTagName(" type")[0].firstChild.nod eValue != "") {
type =
search.getEleme ntsByTagName("t ype")[0].firstChild.nod eValue;
alert("type: "+type);
}
} //4
catch (e) { //5
alert("There has
been an error. The problem is that " + e.message + ". This is a '" +
e.name + "' problem.");
} //5
} //3
else
{ //6
alert("Problem retrieving
XML data")
} //6
} //2
} //1
i am parsing the code using the below parse function:
Code:
function parse(xml) {
var dom;
try {
dom = new
ActiveXObject(" Microsoft.XMLDO M");
dom.async = false;
dom.loadXML(xml );
} catch (error) {
try {
var parser = new
DOMParser();
dom =
parser.parseFro mString(xml, "text/xml");
delete parser;
} catch (error2) {
if (debug)
alert("XML parsing is
not supported.");
}
}
return dom;
}
no matter what i do i keep getting that search has no properties. but
the below line is correct, isn't it?
var search = dom.getElements ByTagName('sear ch').item(0);
so, if that is correct, then the problem is the content of the
response. but, when i uncomment my errorhandling code:
//UNCOMMENT FOR ERROR CHECKING - RESPONSETEXT IN NEW WINDOW
//var doc = ajaxRequest.res ponseText;
// doc=doc.replace (/</g, '<').replace(/\>/g, '>');
//childWin=window .open("", "childwin") ;
//childWin.docume nt.write("<pre> "+doc+"</pre>");
//childWin.docume nt.close();
i get the below line:
<?xml version='1.0'
encoding='ISO-8859-1'?><search><se x>male</sex><agefrom>18 </agefrom><ageto> 100</ageto><type>som etype</type></search>
so, that is everything. i am probably overlooking something obvious
but, at this point, i need another set of eyes to point
it out.
thanks.
