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Search found 44052 results on 1763 pages for 'pass by value'.

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• how to get value of hidden fields in controller?

  - by sonill

  how do i get the value of hidden field from controller? i tried this: $hidden=$this->input->post('hidden_field_name'); it showed error. The field name is correct, i double checked it.

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• PHP get all function arguments as $key => $value array?

  - by web lover

  <?php function register_template(){ print_r(func_get_args()); # the result was an array ( [0] => my template [1] => screenshot.png [2] => nice template .. ) } register_template( # unkown number of arguments $name = "my template", $screenshot = "screenshot.png", $description = "nice template .. " ) ?> BUT , I want the result array as $key = $value form , $key represents the parameter name.

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• How to assign a value of a property to a var ONLY if the object isn't null

  - by Blankman

  In my code, is there a shorthand that I can use to assign a variable the value of a object's property ONLY if the object isn't null? string username = SomeUserObject.Username; // fails if null I know I can do a check like if(SomeUserObject != null) but I think I saw a shorthand for this kind of test. I tried: string username = SomeUserObject ?? "" : SomeUserObject.Username; But that doesn't work.

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• How Can I Know If An Input Is Checked If I Only Know His Value?

  - by Metal Sonic

  Hello here! I have a dynamic input in my php code like this one: <input type="checkbox" id="advantage[]" name="advantage[]" value="Special Option" /> And I need to know if it's checked... I can have multiple checks in the same format in the code, my brain hurts because i can't find a solution! Thanks 4 the help!

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• How can I retrieve the value of the only item I have an a Dictionary (C#) in one line?

  - by Greg

  How can I retrieve the value of the only item I have an a Dictionary (C#) in one line? Is this possible?

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• How do I use Jquery to find and select a Multi Select option by the Value?

  - by Breadtruck

  I can't seem to figure out how to correctly select a Multi Select option by the Value and leave the other options that are selected alone.

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• Is there a way to get each row's value from a database into an array?

  - by Guyver

  Say I have a query like the one below. What would be the best way to put each value into an array if I don't know how many results there will be? Normally I would do this with a loop, but I have no idea how many results there are. Would I need run another query to count the results first? <CFQUERY name="alllocations" DATASOURCE="#DS#"> SELECT locationID FROM tblProjectLocations WHERE projectID = '#ProjectName#' </CFQUERY>

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• MySql selecting default value if there are no result?

  - by Kenan

  i'm having 2 tables: members and comments. I select all members, and then join comments. But in comments I'm selecting some SUM of points, and if user never commented, I can't get that user in listing?! So how to select default value for SUM, or some other solution: SELECT c.comment_id AS item_id, m.member_id AS member_id, m.avatar, SUM(c.vote_value) AS vote_value, SUM(c.best) AS best, SUM(c.vote_value) + SUM(c.najbolji)*10 AS total FROM members m LEFT JOIN comments c ON m.member_id = c.author_id GROUP BY c.author_id ORDER BY m.member_id DESC LIMIT {$sql_start}, {$sql_pokazi}

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• How to get a value from the last inserted row?

  - by eflles

  Is there some way to get a value from the last inserted row? I am inserting a row where the PK will automatically increase, and I would like to get this PK. Only the PK is guaranteed to be unique in the table. I am using Java with a JDBC and PostgreSQL.

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• How to get return value from mouse capturing fucntion?

  - by Babiker

  How to get return value from mouse capturing function? function getMousePosition(e) { positionX = e.pageX; positionY = e.pageY; if (positionX < 0){positionX = 0;} if (positionY < 0){positionY = 0;} return positionX + " " + positionY; } as in var mousePositions = getMousePosition(e);

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• How to structure a table for additional data if a particular value of an enum/lookup table is chosen

  - by Soliah

  I'd like to store additional data if a particular value is chosen in the enumerated or looked-up column in a table. The obvious option is to have an extra column in the table, but this will lead to a mostly empty column and seems to be like bad approach. Is there another option/method of doing this?

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• How can I convert this column value to an integer?

  - by Kevin

  My C# code looks like this: myNum = dt.Columns[0]; myNum is an integer and dt is a datatable. The value in column 0 of dt is a string ("12"), but I'd like to convert it to an integer. How can I do this? I've tried: myNum = int.Parse(dt.Columns[0]); ...but that doesn't work. Any ideas?

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• Is there a better way to check if a value is bigger than of type double?

  - by user342231

  double x; cin>>x; if( x > 1.7976931348623157e+308 || x < -1.7976931348623157e+308 ) { cout<<"value not in range"<<endl; exit(1); } Is there like a DOUBLE_MAX or DOUBLE_MIN and would I need to include any header files?

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• efficient way to check if at least one row contains a null value in a DataView ?

  - by benj007

  Hi everybody, I need to do a test in a DataView to check if at least one row contains one cell with a null value. What is the best way to do it in your opinion ? Thanks in advance.

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• How to modify TaskDialog's Show() call to be blocking and return a value when closed?

  - by JustABill

  I'm using the WindowsAPICodePack's TaskDialog implementation, but it bugs me that I have to listen to click handlers on its buttons for even the more basic implementations. I'd like to convert/wrap it so that like the old MessageBox it blocks until closed and then returns a value based on what was done. Is there anything I can read for the basics on how to do this? I just have no idea where to even start, as I am admittedly not that familiar with the Win32 underpinnings.

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• Easiest way to get Enum in to Key Value pair.

  - by vijay.shad

  Hi, I have defined my Enums like this. public enum UserType { RESELLER("Reseller"), SERVICE_MANAGER("Manager"), HOST("Host"); private String name; private UserType(String name) { this.name = name; } public String getName() { return name; } } What should be the easiest way to get a key-value pair form the enum values?

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• jQuery Selectable only select 1 and get a value?

  - by jphenow

  This might seem like an odd request but I'd like to use jQuery's Selectable tool to only select one item at a time and I'd like it to show me a value I'll have within each tag. At the very least I want the contents of that selection. Has anyone tried to do this? For some reason these little things seem to not be all that easily findable in their API for it.

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• Simple way to print value of a register in x86 assembly.

  - by Bob

  I need to write a program in 8086 Assembly that receives data from the user, does some mathematical calculations and prints the answer on the screen, I have written all parts of the program and all work fine but I don't know how to print the number to the screen. At the end of all my calculation the answer is AX and it is treated as an unsigned 16 bit integer. How do I print the decimal (unsigned) value of the AX register?

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• Why is ++i considered an l-value, but i++ is not?

  - by yesraaj

  Why is ++i is l-value? and i++ not Initially there were 2 questions one was removed since that was exact duplicate. So don't down vote the answers that were answering difference between pre- and post-increment.

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• how to split the numeric values from alphanumeric string value using javascript?

  - by user188390

  how to split the numeric values from alphanumeric string value using java script? for example, x = "example123"; from this i need 123 thanks.

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• how to add default value to the textbox helper through viewdata in asp.net mvc?

  - by Renu

  i want to add default value to the html text box by the view data. the foolwing code will give an idea wht i want to do exactly <%= Html.TextBox("quantity", <%= Html.Encode(ViewData["quantity"]) %, new { maxlength = 4 })% but it shows an error. plz tel me the solution for this. thank in advance....

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• How can I count the number of elements of a given value in a matrix?

  - by niko

  Does anyone know how to count the number of times a value appears in a matrix? For example, if I have a 1500 x 1 matrix M (vector) which stores the values of weekdays (1 - 7), how could I count how many Sundays (1), Mondays(2), ... , Saturdays(7) are stored in M?

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• How to find the row ID from datagridview, given a row value?

  - by user361108

  Hi, Can anyone help me please? I have to find the row number from 1 selected array which I stored in one separate array and randomly I'm trying to get the row number from datagridview http://serv8.enterupload.com/i/00246/aewglahmvpr5.jpg In other words: if I know a column value for a given row in a datagridview (e.g. for this row, FirstName == 'Bud'), how can I get the row ID?

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• C++ catch blocks - catch exception by value or reference?

  - by John

  I always catch exceptions by value. e.g try{ ... } catch(CustomException e){ ... } But I came across some code that instead had catch(CustomException &e) instead. Is this a)fine b)wrong c)a grey area?

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• How to get Attachment value from "$File" Item? using C# (Lotus Notes).

  - by Pari

  Hi, I am trying to access Attachment names form "$File" (Lotus Notes). NotesView inbox = _serverDatabase.GetView("($Inbox)"); NotesDocument docInbox = inbox.GetFirstDocument(); NotesItem file = docInbox.GetFirstItem("$File"); String fileType = file.type.ToString(); ( getting fileType value "ATTACHMENT" for mail containing attachments) I am not getting solution given in: http://stackoverflow.com/questions/1361695/how-to-access-attachments-from-notes-mail

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