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  • asp.net form validation. Server-side or client-side

    - by Jeroen
    Here's (i think) an interesting question. With AJAX more and more common i feel more and more like doing all form validation server-side. Picture a registration form pre-AJAX. You have all your validation client-side using the common asp validation controls and validation summery...except...checking username availability, check emailadress availability, captcha and what not. So you end up with 2 kinds of validation and so presenting the user with 2 different UI's at 2 different moments. 2 words come to my mind. Ugly. Inconsistent. So here's the question. Why not do all the validation server-side (using AJAX or not). (I'm not using JQuery yet, should i?)

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  • Find element with attribute with minidom

    - by Xster
    Given <field name="frame.time_delta_displayed" showname="Time delta from previous displayed frame: 0.000008000 seconds" size="0" pos="0" show="0.000008000"/> <field name="frame.time_relative" showname="Time since reference or first frame: 0.000008000 seconds" size="0" pos="0" show="0.000008000"/> <field name="frame.number" showname="Frame Number: 2" size="0" pos="0" show="2"/> <field name="frame.pkt_len" showname="Packet Length: 1506 bytes" hide="yes" size="0" pos="0" show="1506"/> <field name="frame.len" showname="Frame Length: 1506 bytes" size="0" pos="0" show="1506"/> <field name="frame.cap_len" showname="Capture Length: 1506 bytes" size="0" pos="0" show="1506"/> <field name="frame.marked" showname="Frame is marked: False" size="0" pos="0" show="0"/> <field name="frame.protocols" showname="Protocols in frame: eth:ip:tcp:http:data" size="0" pos="0" show="eth:ip:tcp:http:data"/> How do I get the field with name="frame.len" right away without iterating through every tag and checking the attributes?

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  • Button click doesn't call function even when button attribute OnClick is set to that function

    - by Silmaril89
    Hi, I have an aspx page with two buttons, one of the buttons has an OnClick attribute to a function that should be run when clicked. When the other button is clicked there is an if statement checking if the page is a postback, if it is then I run some statements that need to be run when that button is clicked. That postback button works fine. However, the other button, when it's clicked the function it's supposed to call never executes, and the statements inside if (Page.IsPostBack) get executed instead. What can I do to fix this? Is there a way to make the button that calls a function not do a Post back?

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  • Need help with ConnectionString value in C#

    - by SzamDev
    Hi I have an idea and I want to apply it to my Application (C# .NET). When we connect to a DB (MS SQL Server 2008) in VS 2008, the ConnectionString saved in the Application Setting and it's a static varriable (no one can edit it unless you edit it inside VS 2008). I want a way to let my Application search for MS SQL Server and save it to Application Setting and use it to connect to my DB Programmatically. When my application start, the first thing to do is checking the ConnectionString if vaild, NOT Empty and test connection to MS SQL Server Successfully so if there is a proplem I think to show a window form to let the user enter some data like username and password for MS SQL Server 2008 Is there any way to do it?

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  • HTML 5: Is it <br> <br/> or <br />?

    - by Eikern
    I've tried checking other answers, but I'm still confused--especially after seeing W3schools HTML 5 reference. I thought HTML 4.01 was supposed to "allow" single-tags to just be <img> and <br>. Then XHTML came along with <img /> and <br /> (where someone said that the space is there for older browsers). Now I'm wondering how I'm supposed to format my code when practicing HTML 5. <!DOCTYPE HTML> Is it <br>, <br/> or <br />?

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  • not readable PDF files

    - by Michal_R
    Hello, I am writing Master's thesis - NLP system. I have one component - extractor. It is extracting a plain text from PDF files. There are a few PDF files that can not be extracted correctly. Extractor (PDFBox library) returns a string like this: "¦xDn¦if|d+gDF"Ti&cD+lh d FÁhis~n +xd f«"d¦ffih »h" or "10a61a91a22a25a3a27a17a23a20a8a13a14a61a25a17" I was checking each file that makes this extraction's problem and all these files' text also can not be copy-pasted from PDF Reader (Adobe Reader and FoxIt reader). Viewing them in this readers is enabled, but after selecting its content and copying to the clipboard I get the same wrong text (as described above - strings of not semanticaly correct chars or strings of digits and letters) Could anybody help me??? THX :)

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  • How do i enable transactions

    - by acidzombie24
    I have a similar question of how to check if you are in a transaction. Instead of checking how do i allow nested transactions? I am using Microsoft SQL File Database with ADO.NET. I seen examples using tsql and examples starting transactions using begin and using transaction names. When calling connection.BeginTransaction i call another function pass in the same connection and it calls BeginTransaction again which gives me the exception SqlConnection does not support parallel transactions. It appears many microsoft variants allow this but i cant figure out how to do it with my .mdf file. How do i allow nested transactions with a Microsoft SQL File Database using C# and ADO.NET?

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  • Thoughts on Static Code Analysis Warning CA1806 for TryParse calls

    - by Tim
    I was wondering what people's thoughts were on the CA1806 (DoNotIgnoreMethodResults) Static Code Analysis warning when using FxCop. I have several cases where I use Int32.TryParse to pull in internal configuration information that was saved in a file. I end up with a lot of code that looks like: Int32.TryParse(someString, NumberStyles.Integer, CultureInfo.InvariantCulture, out intResult); MSDN says the default result of intResult is zero if something fails, which is exactly what I want. Unfortunately, this code will trigger CA1806 when performing static code analysis. It seems like a lot of redundant/useless code to fix the errors with something like the following: bool success = Int32.TryParse(someString, NumberStyles.Integer, CultureInfo.InvariantCulture, out intResult); if (!success) { intResult= 0; } Should I suppress this message or bite the bullet and add all this redundant error checking? Or maybe someone has a better idea for handling a case like this? Thanks!

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  • ASP.net MVC - Check status request

    - by vdhant
    Hi guys Just wondering if its possible to get the status of a request from another request? To help provide some context, I want to use ajax to upload some files to the server. When the upload is started I want triggered another ajax request that checks to see how much of the file has been uploaded (or in other words how big was the other request and how far through receiving the request is the server). I was thinking that I could use a guid or something similar to ensure that I am checking the status of the right request. But how do I check the status of another request??? Cheers Anthony

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  • IE6 not rendering the page

    - by JX
    I have a web page which consists of a few component pages. When a user requests the page, the server assembles its component pages into the main page and sends it back to the browser. When there is an update on the component page, IE6 browser cannot see the updated content. However, IE7 and Firefox are fine. Checking with Fiddler, the http response returns 200, If-Modified-Since header is the same as the last modified date of the main page, the response raw html also has the updated content. It seems that IE6 browser abandons the rendering of the page because If-Modified-Since is the same as the last modified date of the main page. Does anyone know how to overcome this issue in IE6?

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  • How to check for duplicate files?

    - by miorel
    I have an external hard drive on which I have backed up files several times. Some files were modified between backups, others were not. Some may have been renamed. Now I'm running out of space, and I'd like to clean up duplicate files. My idea was to md5sum every file on the drive, then look for duplicates, and diff the relevant files (just in case, haha). Is this the best way to do this? What are some other methods of checking for duplicate files?

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  • ping to web server from iphone

    - by Sreelal
    Hi , I am developing an aplication which needs to download some data from webserver.So i need to first ping to the web server to check whether the service is available after checking the internet connectivity .I used the following code to check server availability ` BOOL success = NO; const char *host_name = [@"http://192.168.1.7:8080/TestWeb/webresources/" cStringUsingEncoding:NSASCIIStringEncoding]; SCNetworkReachabilityRef reachability = SCNetworkReachabilityCreateWithName(NULL, host_name); SCNetworkReachabilityFlags flags; success = SCNetworkReachabilityGetFlags(reachability, &flags); BOOL isAvailable = success && (flags & kSCNetworkFlagsReachable) && !(flags & kSCNetworkFlagsConnectionRequired); return isAvailable; ` where my server is uploaded locally.But this code always return an invalid result,but it works correctly if i gave some exixting sites like google.com.Please let me know whats i am doing wrong..

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  • Android: Is it better to start and stop a service each time it is needed or to let a service run and

    - by Flo
    I'm developing an app that checks several conditions during an incoming phone call. The main parts of the app are a BroadcastReceiver listening for Intents related to the phone's status and a local Service checking the conditions. At the moment the service is started each time an incoming call is detected and is stopped when the phone status changed back to idle. Now I'm wondering if this procedure is correct and whether it is reasonable to start and stop the service related to the phone's status. Or would it be better to let the service run regardless of the phone's status and bind/unbind to/from it when needed. Are there any performance issues I would have to think about? Perhaps it is more expensive to start/stop a service than letting it run and communicate with it. Are there any best practices out there regarding the implementation of services?

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  • How to verify mail origin?

    - by MrZombie
    I wish to code a little service where I will be able to send an e-mail to a specific address used by my server to send specific commands to my server. I'll check against a list of permitted e-mail addresses to make sure no one unauthorized will send a command to the server, but how do I make sure that, say, an e-mail sent by "[email protected]" really comes from "thezombie.net"? I thought about checking the header for the original e-mail server's IP and pinging the domain to make sure it is the same, but would that be reliable? Example: Server receives a command from [email protected] [email protected] is authorized, proceed with checks Server checks "thezombie.net"'s IP from the header: W.X.Y.Z Server pings "thezombie.net" for it's IP: A.B.C.D The IPs do not correspond, do not process command Is there any better way to do that?

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  • .NET /asp.net 4: Changes with automatic NAMES of controls?

    - by mark smith
    Hi there, I just updated an app from .net 2.0 to .net 4.0 and i have noticed the following... For example i have the following control.. <input type="hidden" name="ctl00$cphMain$hfdFueraHorarioOficinaConfirmado" id="cphMain_hfdFueraHorarioOficinaConfirmado" value="False" /> and then in javascript i did this before.. var hfdFueraHorarioOficinaConfirmado=document.getElementById('ctl00_cphMain_hfdFueraHorarioOficinaConfirmado'); but after checking the Id within the html source once it renders and also doing some debugging with firebug etc.... it has changed from ctl00_cphMain_hfdFueraHorarioOficinaConfirmado to cphMain_hfdFueraHorarioOficinaConfirmado can anyone explain why? .... so should i basically do a search and replace and remove the ctl00?????? A little confused Obviosuly the javascript line with the the ctl00_ infront return NULL because it doesn't exist, but removing this returns the object.. Any help or ideas really appreciated Thanks

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  • How to find all Classes implemeting IDisposable?

    - by apoorv020
    I am working on a large project, and one of my tasks is to remove possible memory leaks. In my code, I have noticed several IDisposable items not being disposed of, and have fixed that. However, that leads me to a more basic question, how do I find all classes used in my project that implement IDisposable? (Not custom created classes by normal Library classes). I have already found one less-than-obvious class that implements IDisposable ( DataTable implements MarshalByValueComponent, which inherits IDisposable). Right now, I am manually checking any suspected classes by using MSDN, but isn't there some way through which I can automate this process?

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  • How come you cannot catch Code Contract exceptions?

    - by Finglas
    System.Diagnostics.Contracts.ContractException is not accessiable in my test project. Note this code is purely myself messing around with my shiney new copy of Visual Studio, but I'd like to know what I'm doing wrong. I'm using the professional edition of VS, therefore I do not have static checking. In order to still use code contracts (which I like) I figured the only way my method can work is to catch the exception that is thrown at runtime, but I'm not finding this possible. TestMethod [TestMethod, ExpectedException(typeof(System.Diagnostics.Contracts.ContractException))] public void returning_a_value_less_than_one_throws_exception() { var person = new Person(); person.Number(); } Method public int Number() { Contract.Ensures(Contract.Result<int>() >= 0); return -1; } Error Error 1 'System.Diagnostics.Contracts.ContractException' is inaccessible due to its protection level.

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  • Launching my deployed my app gets "has stopped working" error. How do I debug this?

    - by Brad Mathews
    I deployed a VB.Net app and ran it and I get 'AppName has stopped working" "Windows is checking for a solution to the problem" along with a Cancel button under Windows 7. Under XP I am only getting the option to Send the error report to Microsoft or not. There is no apparent way to hook into a debugger. I am not getting any exception data. I have put msgboxes at the very start of my code and they are not hit so it is failing before any of my code is even executing. I have checked all dependencies that I can think of. I developed the app on VS2008 Windows 7 and deploying to Windows 7 and WinXP. I need some advice - how do I debug this? Thanks, Brad

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  • Passing a non-iterable to list.extend ()

    - by JS
    Hello, I am creating a public method to allow callers to write values to a device, call it write_vals() for example. Since these values will by typed live, I would like to simplify the user's life by allowing them type in either a list or a single value, depending on how many values they need to write. For example: write_to_device([1,2,3]) or write_to_device(1) My function would like to work with a flat list, so I tried to be clever and code something like this: input_list = [] input_list.extend( input_val ) This works swimmingly when the user inputs a list, but fails miserably when the user inputs a single integer: TypeError: 'int' object is not iterable Using list.append() would create a nested list when a list was passed in, which would be an additional hassle to flatten. Checking the type of the object passed in seems clumsy and non-pythonic and wishing that list.extend() would accept non-iterables has gotten me nowhere. So has trying a variety of other coding methods. Suggestions (coding-related only, please) would be greatly appreciated.

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  • How to check whether Application is Busy or not

    - by Chandan Shetty SP
    Hi, I am using "networkActivityIndicatorVisible" in UIApplication for showing network spinning gear in status bar if my WebView( I am setting "networkActivityIndicatorVisible = YES" in "webViewDidStartLoad" and reseting in "webViewDidFinishLoad" ) is busy. It works fine for single UIWebView. For Multiple UIWebViews i have used a "stack" to trace which webview is busy and which one is idle and it is working fine. My question is there is any way to know whether an application is busy or idle in application level(in UIApplication) instead of checking each webview so i can remove stack. Thanks.

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  • django link to any user profile in social comunity

    - by dana
    i am trying to build a virtual comunity, and i have a profile page, and a personal page. In the profile page, one can see only the posts of one user(the user whos profile is checked), in the personal page one can see his posts, plus all the posts he has subscribed to (just like in Facebook) it's a little confusing for me how i can link to the profile of one user, i mean when anybody clicks on a username, it should link to his personal profile page. for example, if someone searches name "abc", the rsult would be "abc",and link to his profile. How can i pass to one function the username or id of a linked user? i mean, showing the profile of the logged in user who is checking his profile is quite easy.But how about another user profile, if one wants to access it? thanks a lot!

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  • VARCHAR does not work as expected in Apache Derby

    - by Tom Brito
    I'm having this same problem: How can I truncate a VARCHAR to the table field length AUTOMATICALLY in Derby using SQL? To be specific: CREATE TABLE A ( B VARCHAR(2) ); INSERT INTO A B VALUES ('1234'); would throw a SQLException: A truncation error was encountered trying to shrink VARCHAR '123' to length 2. that is already answered: No. You should chop it off after checking the meta-data. Or if you don't wanna check the meta-data everytime, then you must keep both your code and database in sync. But thats not a big deal, its a usual practice in validators. but my doubt is: isn't VARCHAR suppose to variate its size to fit the data? What's wrong with apache derby's VARCHAR?

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  • Sharepoint Foundation 2010 installation problems

    - by Robert Koritnik
    I'm having problems installing development machine for Sharepoint (Foundation) 2010. This is what I did so far on the same machine: Installed a clean Windows 7 x64 with 4GB of RAM without being part of any domain. Just a simple standalone machine. Enabled IIS related features as described here except IIS6 related ones (two of them) Installed SQL Server 2008 R2 Development Edition (DB Engine and Writer being enabled but not SQL Agent) Installed Visual Studio 2010 Premium Started installing Sharepoint Foundation 2010 with first extracting files, changing config to enable Windows 7 installation and then installed it as Server Farm (then Complete) to avoid installing SQL Express. Created a separate SPF_CONFIG local user with Logon on as a service right. Opened SPF Management Shell and run New-SPConfigurationDatabase so I am able to use a non-domain username (SPF_CONFIG that I created in the previous step) But all I get is this: The outcome after this error is: Database Sharepoint2010Config is created User SPF_CONFIG is added to SQL Server and attached to this newly created database as dbowner and checking SQL server security logins this user has following rights: dbcreator securityadmin public

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  • nHibernate session - Using repository pattern in Web, windows, wcf etc...

    - by alex
    I recently posted a question which was answered by Bryan Watts, regarding generic repository for nHibernate. I'm trying to design my data access to allow various facets - from ASP.net, WCF and Windows Forms / Windows services. I'm a bit confused re: session management etc.. How would I handle this? I've been checking out code such as: http://membranecms.googlecode.com/svn/ and questions such as: http://stackoverflow.com/questions/1207833/nhibernate-linq-session-management But what do i do if i don't just do things in a web based environment..? Do i need to create different repositories for each client? Or do i pass in the ISession into the (for example) UserRepository constructor..? ... as a side note I'm using nHibernate.Linq Also using fluent nHibernate to config my mapping

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  • Javascript: how to tell if a node object has been inserted into a document/another element yet

    - by thomasrutter
    I'd like to be able to identify whether a given DOM node has been appended/inserted into another node yet, or whether it is fresh out of document.createElement() or similar and has not been placed anywhere. In most browsers just checking the parentNode works. if (!node.parentNode) { // this node is not part of a larger document } However, in Internet Explorer it appears that new elements, even right after they've been created with document.createElement() already have a parentNode object (of type DispHTMLDocument??). Any other nice cross-browser and reliable way? Edit: looks like Internet Explorer is implicitly creating a DocumentFragment (with nodeType of 11) and setting that as the node's parentNode property.

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