key value - Page 510 - Developer IT

Query to get data from a main table

- by Thu Thuy

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connection textfield and html table with database

- by klox

dear all..i have a textfield <tr> <td> <td><input type="text" id="mod"></td> </td> </tr> and a cell <tr> <td><div id="value">//i want data show here</div> </td> </tr> beside that, i've a table "settingdata" in database it consist of 2 field:itemdata and remark.. itemdata's value are "UD" and remark's value are "FM=87.5-108.0MHZ"... what must i do if i want after type "0103UD" at textfield inside <div id="value"></div> can show "FM=87.5-108.0mhz"...

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MySQL using function IN with variable

- by misanov

I have problem querying table with variable in IN function. SELECT s.date, (SELECT GROUP_CONCAT(value) FROM value WHERE id_value IN(s.ref_values) ) AS vals FROM stats s ORDER BY s.date DESC LIMIT 1 Where s.ref_values is '12,22,54,15'. I get only one return for first number (12). When I insert that value directly in IN(12,22,54,15) it finds all 4. So, there must be problem with using variable in IN. What am I doing wrong?

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AutoSave of web control values

- by Muthumari

Hi, What are the option available to autosave the value of control when enter the control value in to the web page.Thanks inadvance

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int foo(type& bar); is a bad practice?

- by Earlz

Well, here we are. Yet another proposed practice that my C++ book has an opinion on. It says "a returning-value(non-void) function should not take reference types as a parameter." So basically if you were to implement a function like this: int read_file(int& into){ ... } and used the integer return value as some sort of error indicator (ignoring the fact that we have exceptions) then that function would be poorly written and it should actually be like void read_file(int& into, int& error){ } Now to me, the first one is much clearer and nice to use. If you want to ignore the error value, you do so with ease. But this book suggests the later. Note that this book does not say returning value functions are bad. It rather says that you should either only return a value or you should only use references. What are your thoughts on this? Is my book full of crap? (again)

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Possible to use Javascript to access the client side's network(knowingly)

- by Earlz

I recently found an exploit in my router to basically give me root access. The catch? There is a nonce hidden form value that is randomly generated and must be sent in for it to work that makes it difficult to do "easily" So basically I'm wanting to do something like this in javascript: get http://192.168.1.254/blah use a regex or similar to extract the nonce value put the nonce value into a hidden field in the current page submit the form by POST to http://192.168.1.254/blah complete with the nonce value and other form values I want to send in. Is this at all possible using only HTML and Javascript? I'm open to things like "must save HTML file locally and then open", which I'm thinking is one way around the cross domain policy. But anyway, is this at all possible? I'm hoping for this to be able to run from at least Firefox and Chrome. The audience for this is those with some technical know how.

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Advance Query with Join

- by user1462589

I'm trying to convert a product table that contains all the detail of the product into separate tables in SQL. I've got everything done except for duplicated descriptor details. The problem I am having all the products have size/color/style/other that many other products contain. I want to only have one size or color descriptor for all the items and reuse the "ID" for all the product which I believe is a Parent key to the Product ID which is a ...Foreign Key. The only problem is that every descriptor would have multiple Foreign Keys assigned to it. So I was thinking on the fly just have it skip figuring out a Foreign Parent key for each descriptor and just check to see if that descriptor exist and if it does use its Key for the descriptor. Data Table PI Colo Sz OTHER 1 | Blue | 5 | Vintage 2 | Blue | 6 | Vintage 3 | Blac | 5 | Simple 4 | Blac | 6 | Simple =================================== Its destination table is this =================================== DI Description 1 | Blue 2 | Blac 3 | 5 4 | 6 6 | Vintage 7 | Simple ============================= Select Data.Table Unique.Data.Table.Colo Unique.Data.Table.Sz Unique.Data.Table.Other ======================================= Then the dual part of the questions after we create all the descriptors how to do a new query and assign the product ID to the descriptors. PI| DI 1 | 1 1 | 3 1 | 4 2 | 1 2 | 3 2 | 4 By figuring out how to do this I should be able to duplicate this pattern for all 300 + columns in the product. Some of these fields are 60+ characters large so its going to save a ton of space. Do I use a Array?

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ruby code inside quotes

- by chief

I would like to embed videos and have managed to to do so by manually coding the url in where needed. If my url is stored in <%= @vid.url %, how can I use that string for the value and src parameter? <object width="480" height="385"><param name="movie" value="http://www.youtube.com/videos/abc123"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/videos/abc123" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>

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Lambda expression will not compile

- by John Soer

I am very confused. I have this lamba expression: tvPatientPrecriptionsEntities.Sort((p1, p2) => p1.MedicationStartDate .Value .CompareTo(p2.MedicationStartDate.Value)); Visual Studio will not compile it and complains about syntax. I converted the lamba expression to an anonymous delegate as so: tvPatientPrecriptionsEntities.Sort( delegate(PatientPrecriptionsEntity p1, PatientPrecriptionsEntity p2) { return p1.MedicationStartDate .Value .CompareTo(p2.MedicationStartDate.Value); }); and it works fine. The project uses .NET 3.5 and I have a reference to System.Linq.

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Mootools element returning null

- by sea_1987

I have this HTML/PHP <input name="add to list" class='fncAdd' id='moodal_close' value="add to list" onclick="cajaxUpdateCartProduct('<?= $value->id ?>', 'quantity_<?= $value->id ?>', '<?= $this->sitePfx ?>/cart/');" type="button"> In my javascript I have $('moodal_close').addEvent('click', function(){ alert("1"); }); In my firebug console the only response I get is $("moodal_close") is null

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What does the $1$2$4 mean in this preg_replace?

- by Taylor

Got this function for ammending the query string and was wondering what the replacement part of the pre_replace meant (ie- $1$2$4). function add_querystring_var($url, $key, $value) { $url = preg_replace('/(.*)(\?|&)' . $key . '=[^&]+?(&)(.*)/i', '$1$2$4', $url . '&'); $url = substr($url, 0, -1); if (strpos($url, '?') === false) { return ($url . '?' . $key . '=' . $value); } else { return ($url . '&' . $key . '=' . $value); } } Not too familiar with regular expression stuff. I get the various parts to preg_replace but not 100% about the use of '$1$2$4' in the replacement part.

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Submit POST form from url

- by Martijn Van Mierloo

Website: www.example.com <form method="POSt" action="" > <input type="hidden" name="test1" value="test11" /> <input type="hidden" name="test2" value="" /> <input type="hidden" name="test3" value="test33" /> <input type="submit" value="Submit"> </form> I want to sumbit this form with adding the correct parameters in the URL. With GET, I can simply use : http://ww.example.com/?test1=test11&test2=&test3=test33 and the form will be sumbitted. Can I do the same for a POST? If so, how? Thanks

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asp.net selecting a checkbox from the grid view

- by baburam

i am trying to get checkbox value ,using c# In grid view the datasource is from oracle i have added the checkbox but the value is not coming please help me in checking the value of check box this is for selecting the candidate if the checkbox is selected the particular candidate name is selected and the candidate names are appended in a string

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Select Elements in nested Divs using JQuery

- by PIKP

I have the following html markup inside a Div named item and I want to select all the elements (inside nested divs) and clear the values. As shown in following given Jquery I have managed to access elements in each Div by using.children().each(). But the the problem is .children().each()goes one level down at a time from the parent div, so I have repeated the same code block with multiple .children() to access the elements inside nested Divs, can anyone suggest me a method to do this without repeating the code for N number of nested divs . html markup <div class="item"> <input type="hidden" value="1234" name="testVal"> <div class="form-group" id="c1"> <div class="controls "> <input type="text" value="Results" name="s1" maxlength="255" id="id2"> </div> </div> <div class="form-group" id="id4"> <input type="text" value="Results" name="s12" maxlength="255" id="id225"> <div class="form-group" id="id41"> <input type="text" value="Results" name="s12" maxlength="255" id="5"> <div class="form-group" id="id42"> <input type="text" value="Results" name="s12" maxlength="255" id="5"> <div class="form-group" id="id43"> <input type="text" value="Results" name="s12" maxlength="255" id="id224"> </div> </div> </div> </div> </div> My Qjuery script var row = $(".item:first").clone(false).get(0); $(row).children().each(function () { updateElementIndex(this, prefix, formCount); if ($(this).attr('type') == 'text') { $(this).val(''); } if ($(this).attr('type') == 'hidden' && ($(this).attr('name') != 'csrfmiddlewaretoken')) { $(this).val(''); } if ($(this).attr('type') == 'file') { $(this).val(''); } if ($(this).attr('type') == 'checkbox') { $(this).attr('checked', false); } $(this).remove('a'); }); // Relabel or rename all the relevant bits $(row).children().children().each(function () { updateElementIndex(this, prefix, formCount) if ($(this).attr('type') == 'text') { $(this).val(''); } if ($(this).attr('type') == 'hidden' && ($(this).attr('name') != 'csrfmiddlewaretoken')) { $(this).val(''); } if ($(this).attr('type') == 'file') { $(this).val(''); } if ($(this).attr('type') == 'checkbox') { $(this).attr('checked', false); } $(this).remove('a'); });

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How to find where error is.

- by gurugio

How can I find where the error occurs? In C language, the return value means what error occurs, such as failure to open file or memory allocation. There is no information where the error occurs. For example, function 'foo' calls A,B,C,D. If foo returns an error value, it might be return value of A or B or C or D. I cannot find what function returns error. I have to run debugger or add some codes to find what function returns error.

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Safe division function

- by bugspy.net

I would like to define some kind of safe division (and modulo) function, one that would return some predefined value when attempting to divide by zero. I don't want to throw exceptions, just to return some "reasonable" value (1? 0?) and continue the program flow. Obviously there is no correct return value, but I wonder if there is some standard or known approach to this

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simple javascript form code

- by Steven Chaney

I have a simple question about running some JS in a form i am trying to make it so that if a user selects an option (entry_12) in a drop down list, that the next form fields are not required (entry_11 entry_13 entry_11) those are the IDs for the fields any thoughts? im not sure where to start on this i have searched all over google and cannot find an instance of this. im trying to make it so if a user selects 'check' out of this list <div class="ss-item ss-item-required ss-select"><div class="ss-form-entry"><label class="ss-q-title" for="entry_12">Card Type <span class="ss-required-asterisk">*</span></label> <label class="ss-q-help" for="entry_12"></label> <select name="entry.12.single" id="entry_12"><option value="Check">Check</option> <option value="Mastercard">Mastercard</option> <option value="Visa">Visa</option> <option value="Amex">Amex</option> <option value="Discover">Discover</option></select></div></div></div> that the next fields (cvc code, exp date, cc number) arent required as they are if they had chosen CC

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this parameter modifier in C#?

- by Ivan

I'm curious about this code snippet: public static class XNAExtensions { /// <summary> /// Write a Point /// </summary> public static void Write(this NetOutgoingMessage message, Point value) { message.Write(value.X); message.Write(value.Y); } // ... }; What does the this keyword mean next to the parameter type? I can't seem to find any information about it anywhere, even in the C# specification.

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MVC -DropDownList - Categories - SubCategories

- by Frajer

In my database I have tbales: categoreis and SubCategoreis. I would Like to create one Dropdownlist containg both of these. Something like: «Välj» <option value='1000' style='background-color:#dcdcc3;font-weight:bold;' id='cat1000' > -- FORDON -- /// this is from Categoreis Table </option> <option value='1020' id='cat1020' > Bilar /// this is from SubCategoreis </option> <option value='1040' id='cat1040' > Bildelar & Biltillbehör /// this is from Categoreis </option> <option value='1060' id='cat1060' > Båtar /// this is from Categoreis </option> <option value='1080' id='cat1080' > Båtdelar & tillbehör /// this is from Categoreis </option> Any samples how I could solve this? should I use Helpers or MVCUsercontrol??? I think that caching is importatnt in this case.Help me out ! Thanks!!

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Class Inside Structure

- by Knvn

Could some one please explain, What happens when a reference type is defined inside the value type. I write the following code: namespace ClassInsideStruct { class ClassInsideStruct { static void Main(string[] args) { ValueType ObjVal = new ValueType(10); ObjVal.Display(); ValueType.ReferenceType ObjValRef = new ValueType.ReferenceType(10); ObjValRef.Display(); Test(ObjVal, ObjValRef); ObjVal.Display(); ObjValRef.Display(); Console.ReadKey(); } private static void Test(ValueType v, ValueType.ReferenceType r) { v.SValue = 50; r.RValue = 50; } } struct ValueType { int StructNum; ReferenceType ObjRef; public ValueType(int i) { StructNum = i; ObjRef = new ReferenceType(i); } public int SValue { get { return StructNum; } set { StructNum = value; ObjRef.RValue = value; } } public void Display() { Console.WriteLine("ValueType: " + StructNum); Console.Write("ReferenceType Inside ValueType Instance: "); ObjRef.Display(); } public class ReferenceType { int ClassNum; public ReferenceType(int i) { ClassNum = i; } public void Display() { Console.WriteLine("Reference Type: " + ClassNum); } public int RValue { get { return ClassNum; } set { ClassNum = value; } } } } } Which outputs: ValueType: 10 ReferenceType Inside ValueType Instance: Reference Type: 10 Reference Type: 10 ValueType: 10 ReferenceType Inside ValueType Instance: Reference Type: 50 Reference Type: 50 I'm curious to know, after calling the method Test(ObjVal, ObjValRef), how the values of ReferenceType is changed to 50 which resides inside the ValueType who's value is not changed?

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if( $_GET) if else problem

- by webdev

need help... the getting input form: <select name="age"> <option value="25-30">25-30</option> <option value="31-40">31-40</option> <option value="41-50">41-50</option> <option value="51-60">51-60</option> </select> example url search/?age=25-30 the function php: if ( $_GET['age'] !="25-30") $age = '("A")'; elseif ( $_GET['age'] !="31-40") $age = '("B")'; elseif ( $_GET['age'] !="41-50") $age = '("C")'; elseif ( $_GET['age'] !="51-60") $age = '("D")'; else ( $_GET['age'] !="25-30") $age = '("A")'; $search ="http://domain.com/?q='.$age; the problem: the $age inside $search always returns A (or 25-30) even though i have selected other values (31-40, 41-50, 51-60) please help..thanks

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How to Check the checkbox when all the checkboxes in a row are checked?

- by SoftwareNerd

Hi all How can i check the checkbox when all the other checkboxes in a row are checked what i mean is i have a div table which looks like this <div id="Row-8"> <span class="span2"> <label class="checkbox"> <input type="checkbox" class="regular-checkbox" onchange="checkallrowcheckboxes(this)" value="8" name="selectedObjects" id="8"><label for="rowcommoncheckbox-8"></label></label></span> <span class="span2">AddOrEdit</span> <span class="span2"> <label class="checkbox"> <input type="checkbox" value="8" class="regular-checkbox" name="chkAdd" id="Add-8"><label for="Add-8"></label></label></span> <span class="span2"> <label class="checkbox"> <input type="checkbox" value="8" class="regular-checkbox" name="chkEdit" id="Edit-8"><label for="Edit-8"></label></label></span> <span class="span2"> <label class="checkbox"> <input type="checkbox" value="8" class="regular-checkbox" name="chkDel" id="Delete-8"><label for="Delete-8"></label></label></span> <span class="span2"> <label class="checkbox"> <input type="checkbox" value="8" class="regular-checkbox" name="chkview" id="View-8"><label for="View-8"></label></label></span> </div> Which looks like this ChkColumn PageName Chk1 Chk2 Chk3 Chk4 what i want is when all the checkboxes in right side os row are checked the left side checkbox should be automatically checked..i.e Chkcolumn should be automatically checked when Chk1 Chk2 Chk3 Chk4 are chekced..

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jQuery see if next element (not sibling) exists

- by DevlshOne

Here's my HTML code: <select class="grid_3 required jobData valid" id="clli" name="clli" style="font-size: 10px; border: none;"> <option value="0">Select One...</option> <option value="905"></option> <option value="931">0</option> <option value="1">ABRDMSES</option> </select> <img alt="This data has been changed!" title="This data has been changed!" src="images/caution.png"> <img alt="This data has been changed!" title="This data has been changed!" src="images/caution.png"> <img alt="This data has been changed!" title="This data has been changed!" src="images/caution.png"> <select class="grid_3 required jobData" id="job_status" name="job_status" style="font-size: 10px; border: none;"> <option value="0">Select One...</option> </select> When a $('#clli').change(); occurs, I slap a caution image next to it to warn the user that there are changes to be saved. However, if they make more than one change to the same element, I first want to see if there is already a caution image there before sending a new one. Any theories/methods on how to just scope out the next (but not $.next()) element?

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Jquery .next() function not working

- by Sundhar

Guys i am trying to do something like this i have two href and a text box in the middle of those <- TEXT <+ So when i press the - and + the value in the txt must increase or decrease by one " value="<%=addProduct.getInteger("ATR_WebMinQuantity",1)/addProduct.getInteger(MCRConstants.DM_ATR_LEGACY_CASE_VENDOR_PACK_SIZE,1) %" name="ADD_CART_ITEM<quantity" class="text" maxlength="3" / --! and i am using a jquery to + and - the value in the text box. Whenever i press + its happening correctly but for - it takes the TEXT fields name instead of its value . Any solution for this to make it to take the value of the TEXT box Jquery used follows : $(".quantity .subtract").click(function () { var qtyInput = $(this).next('input'); var qty = parseInt(qtyInput.val()); if (qty 1) qtyInput.val(qty - 1); qtyInput.focus(); return false; }); $(".quantity .add").click(function () { var qtyInput = $(this).prev('input'); var qty = parseInt(qtyInput.val()); if (qty >= 0 && (qty + 1 <= 999)) qtyInput.val(qty + 1); qtyInput.focus(); return false; });

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In a JDBC ResultSet, what should happen when getLong() or getShort() is called on an int result colu

- by Uri

Say that I have a JDBC ResultSet, and I call the getLong() or getshort() method. For which of the following SQL types {SMALLINT, INT, BIGINT} should I get long, and for which types should I get an error? In other words, if I have an INT and I want a SMALLINT (A short), would I get it, or would I get an error? Similarly, if I have an INT and want a BIGINT (a long), would I get it, or would I get an error? The Javadocs (listed below) say nothing. public long getLong(int columnIndex) throws SQLException Retrieves the value of the designated column in the current row of this ResultSet object as a long in the Java programming language. Parameters: columnIndex - the first column is 1, the second is 2, ... Returns: the column value; if the value is SQL NULL, the value returned is 0 Throws: SQLException - if a database access error occurs

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- by Thu Thuy

- by klox

- by misanov

- by Muthumari

- by Earlz

- by Earlz

- by user1462589

- by chief

- by John Soer

- by sea_1987

- by Taylor

- by Martijn Van Mierloo

- by baburam

- by PIKP

- by gurugio

- by bugspy.net

- by Steven Chaney

- by Ivan

- by Frajer

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- by webdev

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