wdhough
asked on
xmlHttpRequest object is empty when it arrives at asp.net
hello,
I have an activeX control which creats a DOM object and send it to an aspx page via the xmlHttpRequest object. Yet when i load the object into a DOM object on the server the request information seems to be empty. I aprechiate that using DOM in .NET is not the most efficent method of handling xml, but none the less i beleive this should work?
activex code to send DOM and xmlHttpRequest:
Set xmlHttpReq1 = New MSXML2.XMLHTTP30
xmlHttpReq1.Open "POST", strServerURL, False
xmlHttpReq1.send objDOM
receiving code on the aspx page:
xmlDoc = Server.CreateObject("Msxml
xmlDoc.async = False
xmlDoc.validateOnParse = False
xmlDoc.resolveExternals = False
xmlDoc.Load(Request)
xmlDoc.Save(strXMLfile)
yet it saves an empty xml file....
I know the DOM object has created successfully at the client as i save the xml file for testing before sending it.
many thanks for any help.
I have an activeX control which creats a DOM object and send it to an aspx page via the xmlHttpRequest object. Yet when i load the object into a DOM object on the server the request information seems to be empty. I aprechiate that using DOM in .NET is not the most efficent method of handling xml, but none the less i beleive this should work?
activex code to send DOM and xmlHttpRequest:
Set xmlHttpReq1 = New MSXML2.XMLHTTP30
xmlHttpReq1.Open "POST", strServerURL, False
xmlHttpReq1.send objDOM
receiving code on the aspx page:
xmlDoc = Server.CreateObject("Msxml
xmlDoc.async = False
xmlDoc.validateOnParse = False
xmlDoc.resolveExternals = False
xmlDoc.Load(Request)
xmlDoc.Save(strXMLfile)
yet it saves an empty xml file....
I know the DOM object has created successfully at the client as i save the xml file for testing before sending it.
many thanks for any help.
ASKER
thanks for the reply, but tis still empty.
wdhough,
The inputstream property should contain the posted DOM. Can you check that this is the case with a breakpoint and testing Request.InputStream.Length
Tim
The inputstream property should contain the posted DOM. Can you check that this is the case with a breakpoint and testing Request.InputStream.Length
Tim
ASKER
hmm,
I am getting an error "Value does not fall within the expected range" when trying to save the file or read the Request.InputStream.Length
I am getting an error "Value does not fall within the expected range" when trying to save the file or read the Request.InputStream.Length
ASKER
ok the length of the request is returning a value when I do not load it into the xmlDoc DOM object on the asp page. So if i jsut do:
strLength = (Request.InputStream.Lengt
response.write(strLength)
i get a 6 figure value.
strLength = (Request.InputStream.Lengt
response.write(strLength)
i get a 6 figure value.
wdhough,
Which at least means that it is indeed getting posted to the page, which you thought but is always good to check that.
Ok, it could be that using the msxml2 object is not the way to go. Can you try it with:
Dim xmlDoc As System.Xml.XmlDocument = New System.Xml.XmlDocument
xmlDoc.Load(Request.InputS
xmlDoc.Save(strXMLFile)
Tim
Which at least means that it is indeed getting posted to the page, which you thought but is always good to check that.
Ok, it could be that using the msxml2 object is not the way to go. Can you try it with:
Dim xmlDoc As System.Xml.XmlDocument = New System.Xml.XmlDocument
xmlDoc.Load(Request.InputS
xmlDoc.Save(strXMLFile)
Tim
ASKER
ok thanks that worked a treat, but has caused problems with the next section of the code, what this does is read the saved xml file / and save the contents (bin.base64 encoded file) as its original file type
Dim xmlDoc1 As System.Xml.XmlDocument = New System.Xml.XmlDocument
xmlDoc1.Load(strXMLFile)
xmlDoc1.save(strXMLFile & "test.xml")
objStream = Server.CreateObject("ADODB
objStream.Type = 1
objStream.Open
node = xmlDoc1.selectSingleNode("
If Not(node.selectSingleNode(
objStream.Write = node.selectSingleNode("Fil
End If
objStream.SaveToFile("c:\t
objStream.Close()
objStream = Nothing
xmlDoc1=nothing
session("OCX_UPLOADFILE") = session.sessionid & "." & strExtn
response.write(err.descrip
but the error is now saying cannot write to file?
thanks again
Dim xmlDoc1 As System.Xml.XmlDocument = New System.Xml.XmlDocument
xmlDoc1.Load(strXMLFile)
xmlDoc1.save(strXMLFile & "test.xml")
objStream = Server.CreateObject("ADODB
objStream.Type = 1
objStream.Open
node = xmlDoc1.selectSingleNode("
If Not(node.selectSingleNode(
objStream.Write = node.selectSingleNode("Fil
End If
objStream.SaveToFile("c:\t
objStream.Close()
objStream = Nothing
xmlDoc1=nothing
session("OCX_UPLOADFILE") = session.sessionid & "." & strExtn
response.write(err.descrip
but the error is now saying cannot write to file?
thanks again
wdhough,
That could be simply that the colder you are trying to write to is the root of the webserver and iis doesn't have permissions to write to this location.
You might be better creating a new folder c:\testing and assigning full control permissions to the iis account on this folder. Then give it a try again and see if that works.
Tim
That could be simply that the colder you are trying to write to is the root of the webserver and iis doesn't have permissions to write to this location.
You might be better creating a new folder c:\testing and assigning full control permissions to the iis account on this folder. Then give it a try again and see if that works.
Tim
ASKER
hmm im struggling a little with this,
i think the method im using to read the xml nodes might not be aplicable with New System.Xml.XmlDocument
it saves the file, but its empty adn an error message reports: "Public member nodeTypedValue on type XmlElement is not found"
any ideas?
i think the method im using to read the xml nodes might not be aplicable with New System.Xml.XmlDocument
it saves the file, but its empty adn an error message reports: "Public member nodeTypedValue on type XmlElement is not found"
any ideas?
wdhough,
Without knowing the schema of the xml content, try something like this:
Dim xNode As System.Xml.XmlNode = xmlDoc1.SelectSingleNode("
If Not(xNode Is Nothing) Then
xNode.dataType = "bin.base64"
objStream.Write xNode.nodeTypedValue
End If
Tim
Without knowing the schema of the xml content, try something like this:
Dim xNode As System.Xml.XmlNode = xmlDoc1.SelectSingleNode("
If Not(xNode Is Nothing) Then
xNode.dataType = "bin.base64"
objStream.Write xNode.nodeTypedValue
End If
Tim
ASKER
yeah thats kind of what i was doing anyway, but the error is : 'nodeTypedValue' is not a member of 'System.Xml.XmlNode'.
wdhough,
Fair point, mixing and matching xml implementations.
Just so I get it fully straight in my head here, you have in the node MESSAGE/File a byte stream representing file contents that you want to recreate as the original file on the server?
Tim
Fair point, mixing and matching xml implementations.
Just so I get it fully straight in my head here, you have in the node MESSAGE/File a byte stream representing file contents that you want to recreate as the original file on the server?
Tim
ASKER
thats exactly the case, and to further clarify I had this working in ASP and am now using ASP.net (hence) the changes.
So the final part of the conversion is to read the node value into the stream Wirte,
which is producing the above error.
thanks.
So the final part of the conversion is to read the node value into the stream Wirte,
which is producing the above error.
thanks.
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ASKER
um.
"failed to map path now" yet that cant be a problem as reading and writing the file was fine before.
"failed to map path now" yet that cant be a problem as reading and writing the file was fine before.
ASKER
ahh. got itworking.. Many thanks for your help.
Interesting to see the ways asp and aspx differ
thanks again.
Interesting to see the ways asp and aspx differ
thanks again.
wdhough,
You are welcome, glad I could help.
Tim
You are welcome, glad I could help.
Tim
Try:
xmlDoc.Load(Request.InputS
instead.
Tim Cottee