I have a problem with service references, I add the reference and use code similar to the one below, in VS my app conects fine to the web service, also it runs fine launching the app directly. But after I created the installer and give to final users to install they can not connect to the web service.
a)Use service reference.
First, add service reference
Second, call it like this:[code].......
I am trying to communicate with a Windows service on a remote machine on the network but i keep getting an exception saying the following: "System.InvalidOperationException: Cannot open Service Control Manager on computer 'machine001'. This operation might require other priviledges. ---> System.ComponentModel.Win32Exception: Access is denied.
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i need to develop a web application (aspx) wherein the data connects to a GSM Modem and gets and sends some string to the modem. i have absolutely no idea where to start and how to start. direct me towards a proper page / code wherein i can understand the basics of connecting.i have the vb6 code for the application which used Winsock but the guy who has developed the software is unable to explain anything to me about .net
so i am stuck here with absolutely no idea as to how to do it.
I have a VB2008 application which can control a windows service i.e. start, stop, pause etc. This runs ok on a Windows XP machine but not on a Win 7 machine (message is - Service error cannot open <service name> service on computer '.') ( if I stop the UAC then it runs ok ). It seems to be a rights issue,
View 3 RepliesI'm using asmx web service to lock a folder on remote computer! When I run web service on local machine everything working fine, but when I run it on remote computer nothing happen, folder on remote computer stay unlock! I supose that I need to set security permission for this web service on remote computer, but i don't know where! So, what I need to enable executing this service on remote computer?
View 5 RepliesI put together a small app I want to use on my local network for service monitoring across a few of my servers.
I'm using vb.net express 2010 with system.serviceprocess imported The problem I am having is that my code only seems to work locally, and will not retrieve the service data for any server on my network.
For example, my local machine is called "office-pc", and when running the app on it, I get all the service information.
Dim localServices As ServiceController() = ServiceController.GetServices("office-pc")
For Each localservice As ServiceController In localServices
ComboBox1.Items.Add(localservice.DisplayName)
Next
But, if I want the service info from my web server called "casper", I use the same code, but i change the GetServices() parameter like so;
Dim localServices As ServiceController() = ServiceController.GetServices("casper")
For Each localservice As ServiceController In localServices
ComboBox2.Items.Add(localservice.DisplayName)
Next
After a few seconds delay, nothing happens, ComboBox2 remains empty.
It was my understanding that GetServices() would get the local machines service info unless a machine name was specified, which in both cases is true.
So why isn't it working? Do I need to set something up on the network servers first?
Am trying the following to start a windows service
Try
Dim myController As New ServiceController("FCR GEFU Server 1", "10.1.1.208")
myController.Start()
TextBox1.Text = "Service Started"
Catch ex As Exception
TextBox1.Text = ex.Message
End Try
Am getting the following error:Cannot open Service Control Manager on computer '10.1.1.208'. This operation might require other privileges.How should I provide the log in credentials for the remote PC !?
I am writing a vb.net client application that uses a web service to connect to the remote database.So far I am able to connect to the web service and read, add new and delete data from the database. I am having a hard time updating data.
I have a datagridview control that is bound to a dataset retrieved from the remote database using the web service.When a record is edited in the datagridview control, I need the dataset that is bound to that control to be updated and then that updated dataset to be sent to the webservice to update the remote database.
My client code in the btnUpdate_Click event
dim new_ds as new dataset = datagridview1.datasource
Dim es As New testwebservice.equipmenttracker 'the web service reference
dim msg as string = es.updateequipment(new_ds)
messagebox.show(msg)
I've got a webservice called Converter.asmx and I've just noticed that on the remote server I basically can't connect to it. The error that I get: "No connection could be made because the target machine actively refused it 127.0.0.1:49792" and the error occurs where I'm calling the web service (second line below).
Dim webservice As New localhost.Converter
results.InnerHtml = webservice.ParseData(txtInput.InnerText, options)
On my localhost it works fine. How can I change the webservice so that it'll work on the remote host as well?
I am using this code to try to connect to a computer/server from my desk top. but keep getting errors The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)
Dim options As ConnectionOptions
options =
New ConnectionOptions()
[Code]....
I have to admit that I was sceptical it would work... but below is the code. I had to make a minor change to the code you suggested. Whenever I tried IPC$ it would return a 53 result code, even though I'm sure the share exists. So at the suggestion of another website I removed the share and just the computer name and this worked.
Imports System.Runtime.InteropServices
Imports System.Net
Imports System.IO
[Code]....
The conditions are I don't have administrator privilege I want to see the status of a service in remote machine (server)I use the following code (vb.net with framework 2.0) to see the status
Dim sqlSvc As ServiceController
Svc = New ServiceController(My.Settings.serviceName, My.Settings.machineName)
If sqlSvc.Status.ToString.Equals("Running") Then
displayStatus("success", sqlSvc.Status.ToString)
Else
displayStatus("error", sqlSvc.Status.ToString)
End If
When running the code, InvalidOperationException is raised and found out that I need admin right in the server.Can I lookup the status of the service without having admin right in remote machine ?
I am connecting to a web service that returns a dataset that I use as a datasource for a windows client datagridview.
Once a user has made changes to the datagridview record(s), how do I get those changes back to the connected dataset and back to the remote database.
I wrote the sql update function in the service:
Code Snippet from web service
<WebMethod()> _
Public Sub Update_equipment_repair(ByVal repair_id As Int64, ByVal date_entered As DateTime, ByVal date_sent_in As DateTime, ByVal date_returned As DateTime, ByVal damage_description As String, ByVal vendor_id As Int64, ByVal repair_description As String)
[Code]....
This displays the records perfectly and I figured out how to delete and insert records via web service.
writing updates from the datagridview back to the database.
I am writing a small windows client application that accesses data using a web service that returns datasets.When the dataset is returned, a datagridview's datasource is set to the dataset.
My question is, how do I write changes that were made in the datagridview back to the dataset and then back to the remote database.
[Code]...
Now the client snippet that connects to the service and lists the equipment
This is a bit of unusual problem that I'm experiencing, but recently one of the users of a production application started reporting errors in the system. These were traced to a 503 Service Unavailable error when making a call to a web service used by the application.
Now here's the odd part, only the one user is affected by this issue. Other users of the application have not reported any errors. When the user logged on to a different machine that worked for another user, they still received the error.
I am trying to change the "logon as" userid and password for a service on a remote machineMy user is a domain admin Here is the code I am using...
Dim wmiScope As ManagementScope
Dim wmiConOpts As New ConnectionOptions
wmiConOpts.Impersonation = ImpersonationLevel.Identify
[code].....
I have a Vb.Net 4.0 Windows Service.The service is setup to run in DEBUG with generate debug set to pdb-only. Configuration is set to debug.Installer project is set to DEBUG. VS IDE is set to debug.I do a clean build and clean install of the DEBUG version.
I run x64msvsmon.exe on remote machine (W2008 R2 64bit).I attach to the process via workstation (XP PRO 32bit) in VS2010 without issue.Everything is set to debug but I get the infamous message breakpoint will not currently be hit, no symbols are loaded.
I am trying to upload a file to Mainframe machine from my VB.net application. I am getting the following error.The remote server returned an error: (501) Syntax error in parameters or arguments
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Using vb.net 2005 - FtpWebRequest for ListDirectory always gets 550 error The remote server returned an error: (550) File unavailable (e.g., file not found, no access).
On both FTPListDirRequest.Method = System.Net.WebRequestMethods.Ftp.ListDirectory
FTPListDirRequest.Method = System.Net.WebRequestMethods.Ftp.ListDirectoryDetails
[Code]...
When I tried to read the data of a http link using VB.net, an error occur. The error is:The remote server returned an error: (406) Not Acceptable.This error is only occur for some links.
View 2 Repliesvb.net - how to get a service "logon username" setting on a remote machine so far i have this:
Dim localServices As ServiceController() = ServiceController.GetServices("myserver")
For Each localservice As ServiceController In localServices
ListBox1.Items.Add(localservice.DisplayName & " " & localservice.Status.ToString)
Next
Recently working in vb 2010 express. I'm using service-based database which is based on SQL Server. This database will be deployed at the server. Is it possible that multiple vb.net programs, which are installed in remote computers or client computers in the same network, connect to this database simultaneously? Does the service-based database support multiple connections?
View 1 RepliesI am developing a tool to get all elements of a web page (images, links etc...) and I am having a small problem with the Download button. I click it, and becuase we use a proxy at school no matter what I try it will always throw the error: "The remote server returned an error - (407) Proxy Authentification Required"How do I detect that the user is using a proxyAnd then if so, authenticate with it so that I can download the file?
View 4 Repliesgood mornign here again =D having a problem with connecting to a remote database via adhoc we are using a windows 7 ultimate 32bit OS platform =D
here is the connection message im encountering
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 - A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.)
i have already enable the the Remote Connection enabling the both TCP/IP and name Pipes and its server authentication of our both msSQL server 2005 is SQL SERVER AND WINDOWS AUTHENTICATION MODE
and also i put a check in Allow Remote Connections to this Server...both our laptops...
but still encountering the problem... the default gateway of our adhoc is 192.168.137.1
sample code how i connect to the database
Imports System
Imports System.Data
Imports System.Data.SqlClient
[Code]....
I am trying to get the size of multiple files to make a decision according to it.
Using the code below I can get the size of maximum 2 file then a time out error pops, Iam sure it's not an error of the links or the server because when i try each link solo it works but only fails in the loop , i also tried to make a delay between each request and other but that didn't fix it [code]...
I am trying to make a remote database in VB 2008 I have SQL Server 2005 it works great. What I am trying to make is a login but its not working so great I am trying to make a Online Login type thing like ok if a user just made a account I'll add it to the database the online database so when my app. Connects to the Database or what ever. I want it to let the user on to the next form if the username and password is correct cause I have to forms and the first is login the second is like VIP or Members type thing but whenIi try to log on from another computer it give's me an Error Message.
Here's My Code
Dim Connection As New SqlClient.SqlConnection
Dim command As New SqlClient.SqlCommand
Dim adapter As New SqlClient.SqlDataAdapter
Dim dataset As New DataSet
Dim oSQLConn As SqlConnection = New SqlConnection()
[Code] .....
posted again but this time its regarding both the webclient and the web reuqest giving me this error :S
View 1 Repliesi have a Windows service that is hosting a WCF service through net.tcp and this is working great. I have also created a WCF service application. I am trying to add the net.tcp service reference to the service application. Then I add it to the GAC that goes ok but if I try to RegAsm the WCF service application to allow it to be called from Server.CreateObject I get the error:
Warning: Type library exporter encountered a type that derives from a
generic class and is not marked as
[ClassInterface(ClassInterfaceType.None)]. Class interfaces cannot be
exposed for such types. Consider marking the type with
[ClassInterface(ClassInterfaceType.None)] and exposing an explicit
interface as the default interface to COM using the
ComDefaultInterface attribute.
It does not work. I have tried to call it through a class library but this does not work either as the end point is not set correctly.
I have developed a system to update various programs. I put the programs updated into a particular folder of my site and Users can launch their update program to download and update their application.
The user interface has two progress bar, one for the single program in download and the second for the total download.
For calculating the total amount of bytes for the second progress bar I need to know the dimension in bytes of programs and files to be downloaded before start downloading. See the attached code.
For that I read, in remote mode, the size of all the files checked and I obtain the total amount of bytes.
All works fine with various type of files (.EXE - .DOC - .JPG - .TXT etc).
The problem arises with the Crystal Report file (.RPT).
The error 404 occurs but the file exists, the server WEB is active and the other files of the list are summed. If I compress the same file in .ZIP all works.[code]...
I am writing a small ftp application for a friend and I'm not sure whats going on here. I'll try to be as descriptive as possible. I get a 553 error "The remote server returned an error: (553) File name not allowed." when I try to upload a file.
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I added a msgbox to show me what the path to the server is and this is it.Click OK and it gives me the error above.So I changed the "ofd.Files.FileName to ofd.Files.SafeFileName My msgbox now shows this:Then VS throws en error saying it can't find the file in the projects debug folder so I move it there and run the program and it uploads. I noticed that in the first msgbox it has forward and backward slashes could that be my problem or is it something else?