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  • Displaying custom error message for a blank field in a simple JSF application

    - by 29b5k
    Hi all, I was trying out a simple JSF application, in which I need to check if the "name" field is blank, then display an error message. The code which takes the field's value is: <h:outputLabel value="Name"></h:outputLabel> <h:inputText value="#{greeting.name}" required = "true"> <f:validator validatorId="NumValidator"></f:validator> </h:inputText> The control of the program does not go into the validator class, if the field is submitted without entering anything, and it displays the default error message: j_id_jsp_869892673_1:j_id_jsp_869892673_4: Validation Error: Value is required. How do i display a custom message for this ?

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  • VB.NET Application which can compile and run C programs

    - by Arjun Vasudevan
    These days I'm working on a VB.NET application which can be used to edit, compile and run C programs. Can someone tell me how I can call a cl.exe process from within my VB program and also that how do I run the program in the console widow itself. Presently I have only the editor ready. With that one can type in a program and save it with a ".c" extension. Now there are 2 buttons on my form - "Compile" and "Run". When the user clicks on the "Compile" button, the program should be passed to the cl.exe process and the errors should be displayed in another textbox or the DOS(black screen itself). And when the user clicks on the "Run" button, the ".exe" file which just got created should get executed.

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  • Flex application versioning

    - by Biroka
    I'm not referring to CVS or SVN! The thing I would like to do is: I want to have a version number of the application ex. 0.0.120 I want to see this version number only in the About box or similar This version number should change everityme I hit debug or release. ex. my version was 0.0.120, after I hit debug in the FlexBuilder, the versionNumber should change to 0.0.121, but If I press Release Build, then the version should change to 0.1.0 The first number changes only when I manually change it Don't know how is this possible but if you have a tip, let me know. Thanks!

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  • Application crashes when running in iPhone simulator 3.2 (Works fine in simulator 3.0)

    - by amitabh
    I just upgraded to SDK 3.2. My application runs in Simulator 3.0 in debug mode but when I change the Simulator to run with 3.2 it crashes with EXEC_BAD_ACCESS. It is crashing at objc_msgsend method. int main(int argc, char *argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; int retVal = UIApplicationMain(argc, argv, nil, nil); <======== THE STACK TRACE starts here. [pool release]; return retVal; } Any idea what is going on? I have absolutely no clue. Any help/suggestion will be greatly appreciated? Thanks A

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  • iPad/iPhone: Form filling application pointers

    - by raj.tiwari
    Folks, I am starting work on an iPad/iPhone application that is essentially a form-filing UI. The requirement is to present a (rather large) form to the user. The form is composed of sections and questions, like so: Form Question 0.1 Question 0.2 Section 1 Question 1.1 etc. The user can take various paths down the form based on answers to questions. I would like to architect this by defining a declarative markup that can be used to author the form questionnaire including traversal rules. My questions are: Can anyone recommend a markup/language that would satisfy the declaration requirement? Is there any existing library that would ease the implementation as described above? Thanks for your time.

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  • Application Buddy Lists and Authentication - How does it all go together

    - by Krevin
    This is a broad but specific question. The idea is that we want to tie in a 'buddy' functionality to a communications app. Very broadly, I believe that the application clients would connect to a central database/auth service which would provide the buddy data and then allow client apps to connect directly to eachother, without passing communications through the server. Specifically, however, what solutions, software, products, servers, technologies, etc would be best to implement to handle such a task? Thanks for reading and responses are much appreciated. //edit: the com app may run on a linux distro, may be web based, or both

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  • See if any application has a DLL from the GAC loaded

    - by rwmnau
    I'm trying to deploy new copies of my DLL to the GAC on remote servers, but I need to identify if any processes currently running have a loaded copy of the DLL I'm replacing - I'd like to restart them, or at least tell the user. For example, Biztalk seems to load the DLLs it needs the first time they're used, and then replacing them keeps the old copy in memory until the Host Instances are restarted - something I could easily do as part of my deployment. Is there a way to tell using .NET which processes have loaded a particular DLL from the GAC? UPDATE: Some further investigation shows that both Process Explorer has this functionality, and another Sysinternals tool, ListDLL, does exactly what I want to be able to do. I'd like to know how they do it, since I'd love to replicate this functionality in my application without having to include and screen-scrape ListDLL (if that's even allowed inside the license).

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  • Choosing a plotting library for web/browser application

    - by Goro
    Hello, I am looking for a plotting/graphing library (mostly to do line plots) for my application. I have been looking at JavaScript APIs (like Google's) but I found them to be slowing down things at client side (I am plotting a quite large number of points). I also found that with client-side libraries, the performance was quite varied depending on the user's computer. With moving to a server-side library I would cut down on this variance, and would have more control over data flow (my data is in a MySQL database). I have then looked at some PHP-based plotting libraries, but a lot of them seem to be "forgotten" (no new version for years). I have been eying pChart, but it has not had an update in almost two years. First, what would you recommend: server-side or client-side approach? Second, what library would you recommend. Paid libraries are definitely an option, as I don't mind paying for quality software that would cut down on my development time. Thanks,

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  • Integration Testing an Entire *Existing* Application (w/ automatic execution of test suite)

    - by Ev
    Hi there, I have just joined a team working on an existing Java web app. I have been tasked with creating an automated integration test suite that should run when developers commit to our continuous integration server (TeamCity), which automatically deploys to our staging server - so really the tests will be run against our staging web app server. I have read a lot of stuff about automated integration testing with frameworks like Watir, Selenium and RWebSpec. I have created tests in all of these and while I prefer Watir, I am open to anything. The thing that hasn't become clear to me is how to create an entire test suite for an application, and how to have that suite execute in it's entirety upon execution of some script. I can happily create individual tests of varying complexity, but there is a gap in my knowledge about how to tie everything together into something useful. Does anyone have any advice on how to create a full test suite and have it execute automatically? Thanks!

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  • Server Error in '/' Application (ASP.NET)

    - by baeltazor
    Hi All I just setup up member ship roles and registration on my website with visual web developer using the tutorial on msdn. It works perfectly locally, but when i uploaded it to my server, I get the following page: "Server Error in '/' Application. -------------------------------------------------------------------------------- Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: The connection name 'LocalSqlServer' was not found in the applications configuration or the connection string is empty. Source Error: [No relevant source lines] Source File: machine.config Line: 160 -------------------------------------------------------------------------------- Version Information: Microsoft .NET Framework Version:2.0.50727.4200; ASP.NET Version:2.0.50727.4016 " Does anybody know why I'm seeing this and how I may go about fixinf this? Any help is greatly appreciated. Thank you Bael. EDIT: I have just looked at my web.config file after reading the following line in the error message: "The connection name 'LocalSqlServer' was not found in the applications configuration or the connection string is empty." ... And have noticed that the following element is completely empty: <connectionStrings/> // Is this one supposed to be empty? if not what should go here? In the error it implies it shouldn't be empty. Also, I don't know where I should place LocalSqlServer LATEST EDIT After changing DataSource to LocalHost i get the following error: Server Error in '/JTS' Application. -------------------------------------------------------------------------------- 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [SqlException (0x80131904): 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +4849015 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +194 System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) +4862333 System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +90 System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +342 System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +221 System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +189 System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +185 System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +31 System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +433 System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66 System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +499 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +65 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +117 System.Data.SqlClient.SqlConnection.Open() +122 System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +87 System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +221 System.Web.Security.SqlMembershipProvider.GetPasswordWithFormat(String username, Boolean updateLastLoginActivityDate, Int32& status, String& password, Int32& passwordFormat, String& passwordSalt, Int32& failedPasswordAttemptCount, Int32& failedPasswordAnswerAttemptCount, Boolean& isApproved, DateTime& lastLoginDate, DateTime& lastActivityDate) +815 System.Web.Security.SqlMembershipProvider.CheckPassword(String username, String password, Boolean updateLastLoginActivityDate, Boolean failIfNotApproved, String& salt, Int32& passwordFormat) +105 System.Web.Security.SqlMembershipProvider.CheckPassword(String username, String password, Boolean updateLastLoginActivityDate, Boolean failIfNotApproved) +42 System.Web.Security.SqlMembershipProvider.ValidateUser(String username, String password) +78 System.Web.UI.WebControls.Login.AuthenticateUsingMembershipProvider(AuthenticateEventArgs e) +60 System.Web.UI.WebControls.Login.OnAuthenticate(AuthenticateEventArgs e) +119 System.Web.UI.WebControls.Login.AttemptLogin() +115 System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) +101 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37 System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +118 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +166 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565 -------------------------------------------------------------------------------- Version Information: Microsoft .NET Framework Version:2.0.50727.4927; ASP.NET Version:2.0.50727.4927

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  • UITextView like iPhone Notes application

    - by Mark
    I am trying to recreate the Notes application. So far I got the following: textView = [[UITextView alloc] initWithFrame:CGRectMake(25.0, 30.0, 295.0, 214.0)]; textView.delegate = self; textView.backgroundColor = [UIColor clearColor]; textView.font = [UIFont fontWithName:@"MarkerFelt-Thin" size:19.0]; [self.view addSubview:textView]; The thing I dont know is how they were able to put the date on top like a header (it is within the UIScrollView that is obvious). Also under every text there is a line where did that came from. Does someone have an idea or a sample project I can take a look at?

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  • How to migrate existing udp application to raw sockets

    - by osgx
    Hello Is there a tutorial for migration from plain udp sockets (linux, C99/C++, recv syscall is used) to the raw sockets? According to http://aschauf.landshut.org/fh/linux/udp_vs_raw/ch03s04.html raw socket is much faster than udp. Application is client-server. client is proprietary and must use exactly same procotol as it was with udp server. But server can be a bit faster with raw sockets. What parts of udp I must to implement in server? Is there a "quick migration" libraries?

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  • Install .exe software application on remote machines.

    - by coral_reef
    Hi, I modified this script from the net, which is suppose to install .exe applications for remote machines: $m = Read-Host "Enter machine name" $File = "c:\temp\office2007sp2-kb958194-fullfile-en-us.exe" $product = [WMICLASS]"\$m\ROOT\CIMV2:win32_Process" $product.Create($File) When I run this script, I have noticed that this program promptly creates a process in the remote machine with the application name office2007sp2-kb958194-fullfile-en-us.exe. This can be checked in the task manager also. But other than that, there is no way to find out if this is getting installed in the remote machine or not. Is there a way to find out, if the installation is really happening? Or does this script actually works? Any help will be great! Reagrds Arindam

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  • set variables in an MVC application?

    - by Melissa
    I am trying to learn about the Orchard MVC application. I see the following code but cannot understand what it is doing. Can someone explain what this: User.As<UserPart>().Record.UserName = value; means? public class UserEditViewModel { [Required] public string UserName { get { return User.As<UserPart>().Record.UserName; } set { User.As<UserPart>().Record.UserName = value; } } [Required] public string Email { get { return User.As<UserPart>().Record.Email; } set { User.As<UserPart>().Record.Email = value; } } public IContent User { get; set; } }

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  • Concepts a web application developer should know?

    - by iama
    I think it is imperative for web application developers to know the answers surrounding the following general questions on web development irrespective of the programming language/framework used. What authentication mechanisms HTTP offer & what are their pros and cons? Why should one go for FORMS authentication? How to secure authentication or for that matter any transactions via HTTP? How to maintain state in HTTP? What are the downsides to maintaining state via cookie & what happens when browsers disable them? Security issues like cross site scripting, session hijacking etc. What other questions a web developer should have answers for similar to the ones above that are programming language/web framework agnostic?

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  • WinUSB application or User-Mode Driver as a filter driver for USB Analysis/Sniffer/Trending

    - by Robert
    A question to maybe some who have worked extensively with WinUSB APIs or use mode USB drivers - Does anyone know if the WinUSB API or a user mode driver can be used as a passive observer of USB connections, capturing notification of interrupts, control requests, data transfers...etc without interfering with other applications (such as iTunes) which would obviously require concurrent access to the device at the same time my application is monitoring the connection and displaying data on it? Or do you pretty much have to write a kernel-mode filter driver and inject yourself in the USB stack in order to make that happen? In the past, there have been a few credible options (libusb-win32 and usbsnoop to be specific) though both are built around the old DDK, not the Windows Driver Foundation, and are not really supported on a regular basis any more. I'm hesitant to build something significant around them, as a result.

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  • MVC Application Design

    - by Paul Brown
    Hello I am about to create my first proper application in ASP.NET MVC3. It is basically a jobs site with 3 levels: 1) Users - No registration and can view all jobs posted on the website 2) Posters - Need to register and login to post adverts 3) Admin - Need to register and login to post adverts and review postings before they go live Would you suggest I use the same Jobs controller for the three levels I mention above? With a LIST action to show jobs to "Users" and a CREATE & EDIT action for the "Posters" & "Admin"? Thanks Paul

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  • Best toolkit for new Web application (odd requirements)

    - by ireadit
    I need to write a new application, and have no experience with any new technology, framework, or language. Here are the requirements: HTML front end (best if it's cross-browser friendly) Web deployable, but also ideally want to be able to install as standalone on a desktop SQL Server database Ideally, would like to use a good (and easy) AJAX toolkit with widgets Ideally, would like to be able to write in ASP.Net but later (or concurrently) also write in Java. This is a big concern, as I would like to not have to rewrite the whole thing. Is there a toolkit I can use that makes this cross-platform requirement easier? All suggestions and comments are much appreciated. Thank you.

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  • Good way to make Authentication and Authorization information available between application layers

    - by DutrowLLC
    I have a web application running on Google App Engine (GAE) for JAVA. I'm authenticating the client at the Servlet layer but would like to make the client information available to my business and data layers without having to pass the client object through the arguments of every single function. I'm considering setting up a "session" type object using ThreadLocal. That way any function can just say something like: CurrentUser.getRoles(); Is this a good way to do this or is there something else that is a more accepted solution? Thanks!

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  • Why do some Flask session values disappear from the session after closing the browser window, but then reappear later without me adding them?

    - by Ben
    So my understanding of Flask sessions is that I can use it like a dictionary and add values to a session by doing: session['key name'] = 'some value here' And that works fine. On a route I have the client call using AJAX post, I assign a value to the session. And it works fine. I can click on various pages of my site and the value stays in the session. If I close the browser window however, and then go back to my site, the session value I had in there is gone. So that's weird and you would think the problem is the session isn't permanent. I also implemented Flask-Openid and that uses the session to store information and that does persist if I close the browser window and open it back up again. I also checked the cookie after closing the browser window, but before going back to my site, and the cookie is indeed still there. Another odd piece of behaviour (which may be related) is that some values I have written to the session for testing purposes will go away when I access the AJAX post route and assign the correct value. So that is odd, but what is truly weird is that when I then close the browser window and open it up again, and have thus lost the value I was trying to retain, the ones that I lost previously actually return! They aren't being reassigned because there's no code in my Python files to reassign those values. Here is some outputs to helper make it clearer. They are all outputed from a route for a real page, and not the AJAX post route I mentioned above. This is the output after I have assigned the value I want to store in the session. The value key is 'userid' - all the other values are dummy ones I have added in trying to solve this problem. 'userid': 8 will stay in the session as long as I don't close the browser window. I can access other routes and the value will stay there just like it should. ['session.=', <SecureCookieSession {'userid': 8, 'test_variable_num': 102, 'adding using before request': 'hi', '_permanent': True, 'test_variable_text': 'hi!'}>] If I do close the browser window, and go back into the site, but without redoing the AJAX post request, I get this output: ['session.=', <SecureCookieSession {'adding using before request': 'hi', '_permanent': True, 'yo': 'yo'}>] The 'yo' value was not in the first first output. I don't know where it came from. I searched my code for 'yo' and there is no instances of me assigning that value anywhere. I think I may have added it to the session days ago. So it seems like it is persisting, but being hidden when the other values are written. And this last one is me accessing the AJAX post route again, and then going to the page that prints out the keys using debug. Same output as the first output I pasted above, which you would expect, and the 'yo' value is gone again (but it will come back if I close the browser window) ['session.=', <SecureCookieSession {'userid': 8, 'test_variable_num': 102, 'adding using before request': 'hi', '_permanent': True, 'test_variable_text': 'hi!'}>] I tested this in both Chrome and Firefox. So I find this all weird and I am guessing it stems from a misunderstanding of how sessions work. I think they're dictionaries and I can write dictionary values into them and retrieve them days later as long as I set the session to permanent and the cookie doesn't get deleted. Any ideas why this weird behaviour is happening?

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  • what is means of this problem when sending email through web-application

    - by Richa Media and services
    i have this error when i sending email through our web application " Mailbox unavailable. The server response was: Requested action not taken: mailbox unavailable or not local" this is detail of error System.Net.Mail.SmtpFailedRecipientException was caught Message=Mailbox unavailable. The server response was: Requested action not taken: mailbox unavailable or not local Source=System FailedRecipient=<[email protected]> StackTrace: at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, SmtpFailedRecipientException& exception) at System.Net.Mail.SmtpClient.Send(MailMessage message) at email.Globals.SendMail(String EmailID, String subject, String message, String senderMail) in C:location InnerException:

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  • Question about tracking user in a map application using cellid

    - by subh
    I am trying to understand the concept of cellid (http://www.opencellid.org/api) As per that, if we send a request http://www.opencellid.org/cell/get?key=myapikey&mnc=1&mcc=2&lac=200&cellid=234 it will respond with the latitude and longitude. I was wondering if this can be used from within a google map application for tracking a user or it needs to be used from within a mobile device? If it can be used from within a web app, what parameters should it use for mcc: mobile country code (decimal) mnc: mobile network code (decimal) lac: locale area code (decimal) cellid: value of the cell id E.g., will it work if we know the cell number of the person(e.g., 281 222 6700)

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  • Send mail from my web application

    - by lakshmanan
    I have a feature in my web app like I have to send mails from the server to many email ids (some kind of notification stuff) my web application is implemented in struts2. Possibly I have to use javamail api i guess. I am completely new to this javamail and sending mail from server. what basic steps I need to do to setup a mail server in windows, contact the server from my java web app. What api i should I use ? The web has very limited tutorials on javamail and they are damn complicated too. Is there any other api other than javamail by which I can send mail from my java struts2 web app. thanks

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