I need to return an error message to the client, if they have entered invalid data when calling my web service. So if my code is: [code]Is there a way to display a more user friendly error message (such as a message box or just the words "Invalid Order ID")?
View 2 RepliesI have created a vb application connected to MS Database. I have used try..catch statements to trap exceptions and display messages on the error found, but the problem is that these messages are too technical for the end users to understand. Is there a way of retrieving the error number or code of that exceptions thrown so that i can customize the message for the users?
View 3 RepliesIm using a function to set an option on a web page - I'm trying to capture the return message (Which is "ok" or an error), I want to cature "ok" and return a friendly message, otherwise return the actual message. This If Then Else seems to be false for the If even when "ok" is returned:
[Code]....
how to create an error message by message box to tell the user to enter a number only if they key in a character value?
I MEAN AFTER THEY PRESS THE CALCULATE BUTTON
Private Sub btnCalcFat_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalcFat.Click
Dim intFat As Integer
intFat = Integer.Parse(txtFat.Text)
lblResultDisplay.Text = txtFat.Text * 9
End Sub
My text box is call txtFat
We are creating a Who wants to be a millionaire style game in VB. Our server is pulling information such as questions and answers from a Access Database and sending them to the contestants (Clients). All transfer of information is directly from the server to each client. One of the "Life Lines" we want to use is "Ask a friend", where one client is able to Instant message another client for a short time to get help on the question.
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After researching all the possible ways of sending the output of my program to an email address, I have yet to settle on the most user friendly way to go about this.I have created a form for a property management company I work for. I would like to send the output to a designated email address by a click of a button.Now given that the average user that will be using this software may not be necessarily tech savvy, I would like to make it do this as simply as possible and that means not having to know the smtp. Also considering that the user may not be on their terminal when using this software, using outlook to send the output may not be the best way to go about this. I have tried adding a webbrowser control and sending the email via html but I am not sure if that is the most logical way to do this.
View 3 RepliesI had a problem getting a VB.NET web service client to receive the response object from a Java web service.In the process of posting this question someone from another department volunteered some code written for a similar situation.I couldn't find this anywhere on the net so I'm completing my question to help others out.[code]The web service is Apache CXF with some Spring elements mixed in.
View 1 Repliesim trying to generate an error message to the user to let them know a file doesnt exist.So far ive got the user to enter the file name into a textbox, they click search and if successful will load a new form with a PDF file reader built in( AxAcroPDF1 )everytime i enter the right file name i get the file loaded, if enter the wrong name the File page still loads with no pdf and no message saying file doesnt exist.
Private
Sub PictureBox1_Click(ByVal
sender As System.Object,
ByVal e
[code]....
I'm using Microsoft Visual Basic 2008 Express Edition. I have a Folder Dialog Browser added in my form and I call it when the user presses a button. The folder path string is stored in a string variable and displayed as text in a text box. (maybe I should use a combo box)
My question is: If the user inputs by hand a non existent path, how do I return an error message, stop the file creation into the invalid path, and return to my main form?
I never got into detailed error processing too much when I played in VBA/VB6 a lot. Mostly then, if you ran into a user error (such as some input of theirs failing a validation test of some kind), you popped a MsgBox() with some error information and the critical (or warning) icon, and safely aborted out of the code
In .NET, my reading basically points to exceptions as the end-all in error handling. It looks to me that if you know a spot of code where a user can screw up, you're supposed to catch it with either try...catch blocks (for things like data conversions), or standard if...the...else constructs for other things, and then throw a new exception if needed.
Isn't throwing an exception essentially a forced crash of a program in a sense (granted, you get the option of continuing)? Or are exceptions geared specifically for things like data conversion errors and other "things that shouldn't happen", and resume use of MsgBox() and friends for minor user screwups?
Consider the case of where you have a TextBox that is only supposed to accept numeric data (or heck, just a specific set of characters). Barring some other trick that lets you restrict that field (let's just assume it's freeform, programatically), it would seem a bit of a waste to throw new exceptions everytime they type in an invalid character, or even if the error checking doesn't happen until they press a submit button (like on a webpage). Popping a MsgBox() seems more sane in that case.
So what's the straight dope on exceptions and throwing new ones on user errors? How about if your program also exposes a programmatic framework? Bad usage of one of the programmatic functions definitely seems like new exception territory to me.
Below is my code, but when i send the message thru client socket i receive Specified argument was out of the range of valid values. Parameter name: size
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim serverStream As NetworkStream = clientSocket.GetStream()
Dim outStream As Byte() = _
System.Text.Encoding.ASCII.GetBytes("0800822000000000000004000000000000000920092126012345001")
[CODE]...
I have an XML file that sits on the hard drive of a Server running my Web Service. I need to access that file from another application.
This is my method on my Web Service
Public Function getXMLFile()
Dim xmlDocument As System.Xml.XmlDocument
xmlDocument = New System.Xml.XmlDocument()
[Code]....
This is caused when I try to return the xmlDocument object
From the information I gathered, it's like SOAP wants to wrap my XML in more XML and stops me from doing that.
How do I go about getting the XML File from my Web Service if I can't return XML?
I am trying to return a structure from one of my web services. It throws up this error:
Quote:
Exception Details: System.Web.Services.Protocols.SoapException: System.Web.Services.Protocols.SoapException: Server was unable to process request. --->
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Call SQLServer CLR storedprocedure from vb.net client returning a datatable
View 1 RepliesI have a WCF Service Function that Returns a typed dataset. How can I return an error or message to the client?Public Function ReturnMyDS(Byval Identity as Integer) as dsMyDataSet Implements Iservice.ReturnMyDS
Try
Return = RetrievemyDataset
Catch ex as exception
[code]...
I am having some issues in attempting to display a recordset from my webservice. Currently my application involves a client feeding their values into my webservice.The webservice will then call a vb.net database class, which executes a SQL stored procedure, returns a recordset to the database class, and the class will pass the recordset back to the webservice, which will display it to the client in xml.
The problem I am having passing the recordset from the database class back to the webservice in a format that can be sent back to the client. I can't seem to convert the recordset to string format. Would it be better to have the record returned in XML format?
I created a WCF Service running as a console application. It is doing event listening for my workflow engine.The second application I am trying to do is a WinForm that can monitor the service and return me back the current states of the engine's workersI am able to connect to the service fine, and I verified that my service has values being set when I step through it... however when my monitor makes a call to the service, I am returning values as though it is not being run? (So default values, not current values
View 13 RepliesI am sending a DDE message to a client using System.Text.Encoding.ASCII.GetBytes(item) . However, before the message is actually sent, I would like to get the message coded where if the item="Ask" then item=Ask (string variable) and so on. The code is:
Protected Overrides Function OnRequest(ByVal conversation As DdeConversation, ByVal item As String, ByVal format As Integer) As RequestResult
' Return data to the client only if the format is CF_TEXT
[code]....
I am trying to populate a combo list box with the results of a web service. The web service returns a dataset with two columns. I want to display column one to the user and capture column two with the user selection of an item from the combox.right now I can display the first column and capture the selection.Not sure how to add the connection of column two, to the combo box and capture the selection
Code so far....
myDataSet1 = proxy3.listSuppLang()
Dim x As Integer
[code].....
I cannot seem to figure out why VB keep throwing me this exception but here is the code
[Code]...
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 Repliescreate a message box that stores my user name, message, and post datetime into the database as messages are sent. Soon came to realise, what if the user changed his name? So I decided to use the user id (icn) to identify the message poster instead. However, my chunk of codes keep giving me the same error. Says that there are no rows in the dataset.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim name As String
Dim icn As String
Dim message As String
[code]....
I have a windows service I created that checks for data to post to an off site webservice over SSL. The service checks every 10 seconds for data to send, if there is data it opens a connection to the remote webservice, and closes the connection after 120 seconds (still checking for data to send during this time). The service works fine if a user is RDP'd into the server, but as soon as no one is logged on and the service attempts to push data, I receive the following error:"The underlying connection was closed: An unexpected error occurred on a send."I have tried running the service as a local service, network service, under my login, and under a service account, but nothing seems to work. The PC it is running on is a windows 2003 server (virtualized - vmware)
Protected Overrides Function GetWebRequest(ByVal Uri As Uri) As System.Net.WebRequest Dim oWebrequest As System.Net.HttpWebRequest = MyBase.GetWebRequest(Uri) oWebrequest.KeepAlive = False oWebrequest.ConnectionGroupName = Guid.NewGuid.ToString oWebrequest.ProtocolVersion =
[code]....
I have a Search web reference (from a Search Server 2010 express install) in a vb.net application that is utilizing the QueryService Class to search a production Sharepoint foundation 2010 site.At a previous point in time, we had created a proof of concept on an entirely test system that has since been turfed. From my recollection on this test system when documents were uploaded as a specific site content type (that inherits from document) and metadata was provided, we could search for specific metadata by making managed properties for each, and search results would be returned as documents (with the isdocument flag set to true). Viewing the document then became simple, as we could simply use the filename and path to display the stored file.Now we are developing a production system and we have encountered a new behavior, where these results now are returned as aspx results such as
[URL]
This of course makes it terribly difficult to locate and view the document, we can extract the Title which will then give us the name of the file with no extension, but that hardly helps, as the FileExtension data is aspx, not the documents file extension, so we don't have a full filename. We could display the page returned as a result, but would much prefer the document itself.
I've made a test document library, with just bare bones setup, (not using the site content type, or site columns) and uploaded some documents on the same site, and they are returned in the same fashion, so I don't believe the document library, or content type are the issue.
With a fairly limited understanding of both Sharepoint and Search Server, I don't know if this is a setup issue with the search service itself, with the site configuration, or with the querypacket I am sending. We also have a third party application (Knowledgelake) installed on the server that ties into sharepoint which could have changed configuration somewhere as well?
I don't think the query packet has changed since it was working in the proof of concept, other than the custom data column names. I will provide it here in case there is something glaringly obvious to an external reader.
<QueryPacket xmlns='urn:Microsoft.Search.Query.Document'>"
<Query>
<SupportedFormats>
<Format>urn:Microsoft.Search.Response</Format>
[code]....
I created a simple user control and everything went fine.Then I created another of the same control (as a different project) from scratch (creating the controls in a different configuration; but pasting code from the previous one from a text file).As far as I know I did everything the same for creating a user controlCreate a Class Library project Then Project>Add New Item> User Control Then delete the initial class that was added automatically (usually named Class1.vb) Put all of my code and components into the user control class.However, when I wanted to run it in the debugger as I did in the previous project, I now get an error message:"A project with an Output Type of Class Library cannot be started directly."
View 6 RepliesHow can I provide an error message if the user does not provide a value in my textbox. I found this example, but it doesn't work in my
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e_
As System.EventArgs) Handles Button1.Click
If TextBox1.Text = "" Then
[code]....
It says that Error Provider1 is not declared. How do I do this the right way?
i have a WPF application that uses a service reference to a web service.Now i have a GUI component that tracks the progress of this...But i seem to have some sort of bug here, it only occurs on some machines and not often..I start a call with MethodNameAsync and display the progress bar until the matching Completed event occurs.
some times i call 3 different async methods in a row but only the two of them get their Completed event raised so the GUI will be locked and the application has to be restarted.After being totally frustrated a few weeks i found the event AppDomain.CurrentDomain.FirstChanceException, so i hooked up to it and started logging all FirstChanceExceptions..
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Fix this temporary by not using async methods and instead using a thread that will call them one by one.. now this is not a elegant solution, i should be able to use the async methods...
how to create a client/server... But I couldn't... I don't want anything fancy. Just want the client to send the server 4 numbers, depending on the user's choice; after that, the server would turn off the pc, restart it, etc. It all depends on the number received. Is there a rather "simple" way to do it? If it's not to much trouble you could use Atheist's example. (Btw I don't understand the code and, yes, I've checked on [URL])
View 9 RepliesThis 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.
How to to send a message between two pcs using Client/Server?
I am using Microsoft Visual Basic 2008 Express Edition
I want to make a very simple program, when pressing a button in computer A to send a message "Hello world" and received by a computer B.