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When I call the webservice method from my class synchronously or assynchronously i am receiving the following error:
(System.NullReferenceException: Object reference not set to an instance)
I am being able to call the loadWindow webservice method without any problem but when i pass the dataset as parameter in the saveWindow im receiving the error above. Any solution will be appreciated. 
<pre>
private void SaveData()
{
try
{
SYS_WS sysws = new SYS_WS();
sysws.SaveWindowCompleted +=new SaveWindowCompletedEventHandler(sysws_SaveWindowCompleted);
sysws.SaveWindowAsync((SYSDataset)dsSystem.GetChanges());
}
catch (Exception ex)
{
throw (ex);
}
}
private void sysws_SaveWindowCompleted(object sender,
SaveWindowCompletedEventArgs e)
{
try
{
if (e.Error != null)
{
return;
}
this.dsSystem.AcceptChanges();
}
catch (Exception ex)
{
throw ex;
}
}
[WebMethod(EnableSession = true)]
public bool SaveWindow(SYSDataset ds)
{
try
{
WindowController cont = new WindowController();
cont.SaveWindows(ds);
return true;
}
catch (Exception ex)
{
throw (ex);
}
}
[WebMethod(EnableSession = true)]
public SYSDataset LoadWindow(string WindowID)
{
WindowController cont = new WindowController();
return cont.LoadWindow(WindowID);
}
</pre>
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I have a gsm modem sim300.
When I connect it to computer and type at or ate1 in hyperterminal the result is "OK", but when I type any other prompt like at+cpin or at+cmgs the result is "error".
Can any one Help me?
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you're not allowed to spam the forums: you should choose the most appropriate forum for your problem, post your question there and only there.
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hi i m final yr student of BE .mujhe remote desktop pe report submit karne hai...can u help pe
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Well, you could try phrasing your question using words that people can actually understand. I appreciate that English may not be your first language, but posting this as if it were a mobile SMS message is unlikely to get a useful response.
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Ask your question in pure English so that everybody can understand.
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Presently considering a project to modify existing bluetooth wireless voice command code for a device that may or may not involve windows mobile. I write to inquire about the following:
- A wireless voice command application by definition would not need user buttons or physical interaction. Is there some additional tool that would facilitate such a development?
- If the intended device is not a windows mobile device is the application form appropriate? What options exist for a multiplatform workspaces for Visual Basic 2008 and/or Visual Studio Professional 2005?
Much thanks for guidance on this topic
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There are some terms in your question that would require clarification in order to give a complete answer. Not by me I hasten to add, as I know little or nothing about mobile/bluetooth applications.
For example:
mauricemcse wrote: is the application form appropriate
This makes no sense to me, unless you intended it to mean Windows Forms Application.
However
mauricemcse wrote: What options exist for a multiplatform workspaces for Visual Basic 2008 and/or Visual Studio Professional 2005?
Visual Studio is strictly Windows only, as I am pretty sure is Visual Basic (all versions).
There is a *nix version of the .NET Framework here[^], I can only suggest that you investigate that site and make your own decision as to its suitability for 'multiplatform workspaces'.
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
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Hello,
Is it possible to contact an article author directly? I would like a faster response to a question and I am willing to pay a resonable fee for a quick answer.
Thanks
Mister T
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The normal way is by adding a "new message" to the bottom of the article. That way the author will get an e-mail notification, and might act on it.
If that fails, you might try and ask your question on one the forums here.
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I write as a novice presently reviewing the basics of this discipline. An introductory book chapter states that the .NET environment provides:
Provide OO environment across the range of applications
I have no idea what a "OO" environment is and could not get a reasonable definition through internet searches. Looking for a definition from an 'informed' party. Much thanks in advance
Phil Pense
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Phil, OO means object-oriented.
"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty
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mauricemcse wrote: OO environment
Because it's nonsense. Object Oriented Programmming is a concept (or even a paradigm), not an environment.
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Hi All,
I've been looking around CP and the .NET for a decent .NET performance profiling tool, does anyone have any links for their personal favourites? I'd like to use Ants Profiling but I can't really afford it at the moment!
EDIT: Forgot to mention that I need this for .NET 3.5 SP1
Cheers,
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You could use free Microsoft CLR profiler [^]
or AMD code analyzer [^],which is free tool too.
Life is a stage and we are all actors!
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Hey,
Thanks for the links, I didn't even think about AMD ...
Thanks!
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Unfortunately Intel Vtune has free personal edition for Linux only.According to me it's the best profiler in the market. 
Life is a stage and we are all actors!
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I'm building a web based api suing the usps delivery confermation api specs. i have build my user forms for which the user inputs the name and address for the address label. when i click on the submit button it builds a xml file called xxx.xml i then need to transfer the contents of the file over https to the U.S.P.S. with a Username and Password. usps processes the xml and responds with an xml that contains the shipping label to be printed. i was never really any good at programming i can make the connection to usps in http but i'm having problems passing my xml file. and when i do how do i get the reply to show. here is a list of my code for the trasport layer.
Dim filename As New XmlTextReader("ShippingRequest.xml")
Dim url As String
url = ("https://secure.shippingapis.com/ShippingAPITest.dll?API=DeliveryConfermationv3&XML=<DeliveryConfermationV3.0Request USERID="450PROFE2590"
Dim ourUri As New Uri(url)
' Create a 'WebRequest' object with the specified url.
Dim myWebRequest As WebRequest = WebRequest.Create(url)
' Send the 'WebRequest' and wait for response.
Dim myWebResponse As WebResponse = myWebRequest.GetResponse()
' "ResponseUri" property is used to get the actual Uri from where the response was attained.
If ourUri.Equals(myWebResponse.ResponseUri) Then
Console.WriteLine(ControlChars.Cr + "Request Url : {0} was not redirected", url)
Else
Console.WriteLine(ControlChars.Cr + "Request Url : {0} was redirected to {1}", url, myWebResponse.ResponseUri)
End If
Response.Write("<script type='text/javascript'>detailedresults=window.open('labelshow.aspx');</script>")
' Release resources of response object.
myWebResponse.Close()
if anyone could help it would be appreciated i will be honest i am somewhat lost.
Finchy
modified on Thursday, August 27, 2009 2:17 PM
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Instead of just closing the response, you need to read the data from it. The code will look something like:
Using reader As New Xml.XmlTextReader(myWebResponse().GetResponseStream())
End Using
myWebResponse.Close()
PS: next time, enclose your code in a pre block by hitting the "code block" button and set the language to vb (<pre lang="vb"> ) to get proper highlighting.
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Hi everyone,
My name is dinesh and now i'm doing project on .net. Its creating client server apps for cyber cafe, so i need to lock( calling the windows form which shows up with backgroud screen) from server but I can't figure out how to do this. I did my work like hosting a remote object at client that calls the method show() of the client locking form but it freezes when rendering the controls on the screen (button,text over the form).Someone please help me and i'm here running out of time and its maddening me.
Any help would be greatly appreciated and remember i also need to call the Win32 Api calls of client from server too.
Thanks.
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Hi All,
I created a simple application in C# that displays a message when a button is clicked. I want this app. to be updated from a network drive, the same network drive that it was published from using ClickOnce.
In the Publish --> Updates window of the apps properties, it's set up so updates are checked "before the application starts".
After a modification is made to the application and I re-publish it the updated files are sent out to the users machine along with an updated very of the setup.exe file.
However, when the user starts the application from the start menu they aren't informed that an update is available and the old version of the application is ran.
The start.exe file can be ran and the new version installed then, but this isn't what I want the user to have to do. Shouldn't the user be informaed of the updated version when the app is ran?
Any ideas would be greatly appreciated.
Thanks,
Mel
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Check the MIME Type in IIS Root WebSite Property.
May be downloaded..
.application --> application/x-ms-application
.manifest --> application/x-ms-application
.deploy --> application/octet stream
.msp --> application/microsoftpatch
.msu --> application/microsoftupdate
email:php4u@paran.cm
msn:php4u@chol.net
name: Lee SeungGu / REDSOFT / KOREA
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Hi,
I've got some C++ code to convert to C# and I'd prefer the C# to be as similar in design to the legacy code as possible (not my original design).
Currently, I'm not having much luck finding an equivalent to WSAWaitForMultipleEvents() that lives in the managed world. Also, the current architecture doesn't allow for a higher-level repackaging with a C++/CLI.
Could anyone point me towards it if I'm just not seeing it in MSDN after staring at the screen for too long, or alternatively put me out my misery so I know I've just got to go with a rethink and rework and new time estimate.
Thanks v. much in advance,
Kev
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How about something like Socket.Select()[^]?
A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
_________________________________________________________
My programs never have bugs, they just develop random features.
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