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  • multiple validation errors showing up for single property

    - by Dave K
    i'm often getting multiple errors showing up for an individual property, when I'd like them to be prioritized, as in, if Required is satisfied, check StringLength, but if Required fails, show that message only. I'm getting inconsistent behavior here, and I'm curious as to how the framework determines this priority? has anyone else had problems with this? Thanks!

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  • To capture Tv tuner/webcam output

    - by mawia
    Hi! all, We are developting a tool for live video streaming in which we want to broadcast the output of tv tuner on a network.Our project is at it's nascent stage.Our main concern at this moment is to how to capture the output of a tv tuner card.Plz guide us regarding this or provide a pointer where I can detail about the topic. All help will be highly appreciated. Thanks Mawia ps:project is for cross-platform but at the moment even if you tell me of any one platform it will be enough!

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  • Using unless in rails uniqueness validation

    - by dunxd
    I am just starting out in Rails, and trying to develop a simple application. I need to validate three values submitted to the application - each must meet the same validation criteria. The validation is pretty simple: Value is valid if unqiue, null or equal to "p" or "d". The following gets me halfway there: validates_uniqueness_of :value1, :value2, :value3, :allow_nil => true I think I can use :unless to check whether the value is either "p" or "d", however I can't figure out how. I guess I am trying to combine validates_uniqueness_of with validates_inclusion_of. Any suggestions?

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  • How to read and write a STL C++ string?

    - by cambr
    #include<string> ... string in; //How do I store a string from stdin to in? // //gets(in) - 16 cannot convert `std::string' to `char*' for argument `1' to //char* gets (char*)' // //scanf("%s",in) also gives some weird error Similarly, how do I write out in to stdout or to a file??

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  • Sanitizing DB inputs with XSLT

    - by azathoth
    Hello I've been looking for a method to strip my XML content of apostrophes (') like: <name> Jim O'Connor</name> since my DBMS is complaining of receiving those. By looking at the example described here, that is supposed to replace ' with '', I constructed the following script: <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output omit-xml-declaration="yes" indent="yes" /> <xsl:template match="node()|@*"> <xsl:copy> <xsl:apply-templates select="node()|@*" /> </xsl:copy> </xsl:template> <xsl:template name="sqlApostrophe"> <xsl:param name="string" /> <xsl:variable name="apostrophe">'</xsl:variable> <xsl:choose> <xsl:when test="contains($string,$apostrophe)"> <xsl:value-of select="concat(substring-before($string,$apostrophe), $apostrophe,$apostrophe)" disable-output-escaping="yes" /> <xsl:call-template name="sqlApostrophe"> <xsl:with-param name="string" select="substring-after($string,$apostrophe)" /> </xsl:call-template> </xsl:when> <xsl:otherwise> <xsl:value-of select="$string" disable-output-escaping="yes" /> </xsl:otherwise> </xsl:choose> </xsl:template> <xsl:template match="node()|@*"> <xsl:apply-templates name="sqlApostrophe"/> </xsl:template> </xsl:stylesheet> However, the processor isn't accepting it. What am I missing here? Is there a better way to get rid of the apostrophes? Perhaps another approach for sanitizing DB inputs by using XSLT? Thanks for your help

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  • Designing Business Objects to indicate constraints such as Max Length

    - by JR
    Is there a standard convention when designing business objects for providing consumers with a way to discover constraints such as a property's maximum length? It could be used up in the UI layer to, for example, set a Textbox's MaxLength property according to the maximum length limit back in the business object. Is there a standard design approach for this?

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  • How to restrict special symbols like % in textbox in wpf?

    - by Vamsy
    I would like to develop a textbox which restricts special symbols like %. I used textbox's keydown event to restrict '%' . I already used the code as if(Keyboard.Modifiers == ModifierKeys.Shift && e.key == key.D5) { e.handle=true; return; } when i implement this in mvvm architecture, I got problem with the dependency property that recognizes only shift as one key and D5 as another when I converted systemkey into string format. How can I recognize % symbol?

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  • How do I make faint words in search bar that go away when you click/type?

    - by Razor Storm
    So, for instance facebook's search bar has faint word that says "search", but when you click on the bar, it becomes blank and you may begin typing, when you click away the "search" goes back. Similarly, SO's ask a question title box has faint words that go away when you start typing. I'm not too sure what this effect is called, but I'm wondering if theres a jQuery plugin that helps to achieve this. This isn't particularly difficult to program, but I thought why reinvent the wheel if someone already made a plugin for it.

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  • NET USE command And Network Provider interface.

    - by Benjamin
    When we command "net use" on command prompt, the result has four columns. Status Local Remote Network OK Z: \\10.x.x.x\Public Microsoft Windows Network X: \\10.y.y.y\Public My Network Redirector The Microsoft Windows Network(SMB)'s Status has OK value, but we don't. It's just empty. We implemented NPEnumResource function in our Network Provider dll. But I don't know how can I set the value(OK). How can I do that? Thanks

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  • Validate site/domain via javascript

    - by Chez
    I have a standard html form where the user can specify a website/domain: favourite website: [ ] I expect the user to type things like: [www.google.com] [www.yahoo.com] [www.example.co.jp] I want to validate the domain/site via javascript so if a user had typed something wrong: [www...google.com] [www.-example.com] I tell them straight away. Can anybody post this javascript ? Alternatively can anybody point me to a site where I can look at their javascript ? Many Thanks

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  • how to get memory dump after blue screen

    - by user464164
    I'm getting a lovely BSOD on bootup (STOP: 0x0000007E) from a driver I'm writing, and would like to load up the memory dump for analysis. However, it's not getting dumped anywhere. Everything is setup correctly in the Startup and Recovery settings, but I get no dump file, and nothing in the event log stating a dump has taken place. It looks like a dump is not even occurring... I know the exact line of code causing it (a call to IoAttachDevice()), but am not sure why, and would like to view the DbgPrint output to see where exactly it's failing. Could Windows possibly be crashing before the dumping functionality is set up? If so, how do I get access to the state of the machine when the failure occurs? UPDATE: Other possibly useful information: I'm running Windows XP through VirtualBox on a Linux host.

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  • minLength data validation is not working with Auth component for CakePHP

    - by grokker
    Let's say I have a user registration and I'm using the Auth component (/user/register is allowed of course). The problem is if I need to set a minLength validation rule in the model, it doesn't work since the Auth component hashes the password therefore it's always more than my minlength password and it passes even if it's blank. How do I fix this issue? Thanks in advance!

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  • Handling of data truncation in FUSE

    - by Vi
    I expect any good program should do all their reads and writes in a loop until all data written/read without relying that write will write everything (even with regular files). Am I right? Implemented simple FUSE filesystem which only allows reading and writing with small buffers, very often returning that it is written less bytes that in a buffer (using -o direct_io). Some programs work, some not. Are them buggy or programs should not expect truncated writes and reads from the regular files?

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  • Why is this c++ string concatenation missing a space?

    - by danutenshu
    I am working with c++ strings, and am a beginner at programming. I am expecting: 99 Red Balloons But I am receiving: 99 RedBalloons Why is that? #include <string> #include <iostream> using namespace std; int main() { string text = "9"; string term( "9 "); string info = "Toys"; string color; char hue[4] = {'R','e','d','\0'}; color = hue; info = "Balloons"; text += (term + color + info); cout << endl << text << endl; return 0; }

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  • C++ Detecting ENTER key pressed by user

    - by user69514
    I have a loop where I ask the user to enter a name. I need to stop when the user presses the ENTER key..... or when 20 names have been entered. However my method doesn't stop when the user presses the ENTER key //loop until ENTER key is entered or 20 elements have been added bool stop = false; int ind = 0; while( !stop || ind >= 20 ){ cout << "Enter name #" << (ind+1) << ":"; string temp; getline(cin, temp); int enterKey = atoi(temp.c_str()); if(enterKey == '\n'){ stop = true; } else{ names[ind] = temp; } ind++; }

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  • How to filter and intercept Linux packets by using net_dev_add() API?

    - by Khajavi
    I'm writing ethernet network driver for linux. I want to receive packets, edit and resend them. I know how to edit the packet in packet_interceptor function, but how can I drop incoming packets in this function?? #include <linux/netdevice.h> #include <linux/skbuff.h> #include <linux/ip.h> #include <net/sock.h> struct packet_type my_proto; int packet_interceptor(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { // I dont want certain packets go to upper in net_devices for further processing. // How can I drop sk_buff here?! return 0; } static int hello_init( void ) { printk(KERN_INFO "Hello, world!\n"); my_proto.type = htons(ETH_P_ALL); my_proto.dev = NULL; my_proto.func = packet_interceptor; dev_add_pack(&my_proto); return 0; } static void hello_exit(void) { dev_remove_pack(&my_proto); printk(KERN_INFO "Bye, world\n"); } module_init(hello_init); module_exit(hello_exit);

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  • Wait For Return Key Press Using Java Scanner

    - by Gordon
    What would be the best way to wait for a return key press from the user using the Java Scanner Class? In a command line tool I would like the user to confirm before carrying out an action. Please correct me if there a more standard way of doing this in a command line tool.

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  • Regular Expression - Password Validation is not working

    - by Kesavan
    Hi, I have to validate the password using regex. The password rule is like at least 1 uppercase and at least 2 numeric. It works fine except if the character comes at the end of the string. The regular expression which i am using is "^(?=.*\d.{2})(?=.*[A-Z].{1})(?=.*[@#$%^&+=].{2}).{8,12}$" Rules: minimum length = 8 minimum uppercase = 1 minimum numeric = 2 minimum special character = 1 It works for Test123$$, Test$123, TEST123$s, Test123$1, Test12$3 but it fails if the character specified comes at the end of the string like Test123$, Test$a12, Test12aa@, 123aa@@T. Please let me know if there is any fix for this.

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