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• How can I write an extension method that converts a System.Drawing.Bitmap to a byte array?

  - by Patrick Szalapski

  How can I write an extension method that converts a System.Drawing.Bitmap to a byte array? Why not: <Extension()> _ Public Function ToByteArray(ByVal image As System.Drawing.Bitmap) As Byte() Using ms = New MemoryStream() image.Save(ms, image.RawFormat) Return ms.ToArray() End Using End Function Yet when I use that, I get "System.Runtime.InteropServices.ExternalException: A generic error occurred in GDI+." What am I doing wrong?

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• How to skip the 1st key in an array loop?

  - by aeran

  I have the following code: if ($_POST['submit'] == "Next") { foreach($_POST['info'] as $key => $value) { echo $value; } } How do I get the foreach function to start from the 2nd key in the array? Thanx.

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• How to get first and last occurence of an array of words in text using PHP?

  - by Runner

  $arr = array('superman','gossipgirl',...); $text = 'arbitary stuff here...'; What I want to do is find the first/last occurencing index of each word in $arr within $text,how to do it efficiently in PHP?

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• Ruby: Efficiently check if a hash's keys include all elements of an Array.

  - by Jason

  I want to compare the keys in a hash of parameters against an array of elements for a match. For example: params = {"key1", "key2", "key3"} params_to_match = ["key2","key3"] I could do this, but I'm sure there is a much more elegant way to acheive the same result params.each_key{|key| if params_to_match.include?(key.to_s) return end }

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• How do I represent integer array as attribute of a class in Visual Studio 2010's UML class diagrams?

  - by AndrejaKo

  How do I represent integer array as attribute of a class in Visual Studio 2010's UML class diagrams? I know hot to add normal integers, but I'm hoping that there is a way to do it other than adding [] to integer's name. I'm new to UML, so I could be missing something obvious here. Should I use Is ordered and Is unique?

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• Getting indices of most recent set of numbers in an array in Matlab?

  - by user2539781

  Let's say I have an array in Matlab: x = [1 1 1 2 2 2 3 3 3 3 2 2 3 3 3 1 1 1 1 1 2 2 2 2 3 3 3] I want the indices of the most recent set of consecutive '1's. In this case, I want the answer: answer = [16 17 18 19 20] % (which should correspond to the last sequence of 1's) I need an automated way to do this in Matlab, that will work with any size arrays, always giving me the indices for the last set of consecutive 1s. Any suggestions?

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• how to add the element in the array using the for loop in objective-c?

  - by uttam

  is this the right way to do the same? nsmutablearray *myarray1 //have some data in it for (int i=0;i< [myarray1 count]; i++) { myArray2 = [NSMutableArray array]; [myArray2 addObject:i]; } and how can i print this value of myarray2.

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• how do i cast a .net single to equivalent byte array that can be stored on the heap?

  - by PeanutPower

  how do i cast a .net single to equivalent byte array that can be stored on the heap? this is to be used as a glfloat

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• read PPM file and store it in an array; coded with C

  - by mary

  Hello, I need to read a PPM file and store it in an array written in C. Can anybody help me out doing this? Thanks a lot.

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• Given an array of integers where some numbers repeat 1 time, some numbers repeat 2 times and only on

  - by SS

  Given an array of integers where some numbers repeat 1 time, some numbers repeat 2 times and only one number repeats 3 times, how do you find the number that repeat 3 times. Using hash was not allowed. Complexity of algorithm should be O(n)

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• Need a sample function implement for array interface member...

  - by Nano HE

  I have a interface member like this. AppInterface.cs ObjLocation[] ArrayLocations { get; } App.cs public ObjLocation[] ArrayLocations { get { return **something**; } } I dont know how to complete it, Or there is another way to implement the array members. Then It can pass the compiler. thank you.

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• easiest way to take file into an array? - c#

  - by Alexry

  I have a file of integers. the first number - the number of subsequent numbers. as the easiest way to take this file into an array? C#

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• How to initialize 4th position only in Array of 5 positions.

  - by mahesh

  Hi, I wanted to store 10 in 4th position of array of 5 positions. How to do ? int main( ) { int a[5] = {,,,,4} ; return 0; } If i do that i get error. Please help. Thanks in advance.

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• How to find the maximized contiguous SUM in an array (which contains +ve and -ve numbers)?

  - by siva

  ContigSum(i,j) as the sum of the contiguous elements a[i] through a[j], i<=j and a[] contains +ve & -ve numbers Could you please tell me a time efficient solution to find maximized contiguous SUM in the array?

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• how to make array of class objects using dynamic allocation in c#?

  - by jack22

  hi, i made a class named x; so i want to make array of it using dynamic allocation x [] myobjects = new x(); but it gives me that error Cannot implicitly convert type 'ObjAssig4.x' to 'ObjAssig4.x[]' i know it's dump question but i am a beginner thanks

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• How do I search a Perl array for a matching string?

  - by Mike

  What is the smartest way of searching through an array of strings for a matching string in Perl? One caveat, I would like the search to be case-insensitive so "aAa" would be in ("aaa","bbb")

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• How to get exactly typeof is object/array/null..?

  - by 3gwebtrain

  var obj = {},ar = [],nothing=null,empty=undefined,word ='string',headorTail = true; console.log(typeof obj) //object console.log(typeof ar)//object console.log(typeof nothing)//object console.log(typeof empty)//undefined console.log(typeof word)//string console.log(typeof headorTail)//boolean But how can i get the type of obj,ar,nothing as "object, array,null" - what is the best way to achieve this?

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• Is it possible to use extract() with an array key name 'some.key'?

  - by chadley

  If I am going to use the code: extract( array( 'key.name' => 'value', 'somekey' => 'somevalue' ) ) Is there some way for me to retrieve the first value? E.g. ${'key.name'} or similar. I know I can retrieve the second value with $somekey but I am curious if its possible with . in the name.

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• Can PHP array passed POST method to catch in ASP.NET MVC?

  - by RendeRR

  Can PHP array passed POST method to catch in ASP.NET MVC? Query string: WebAccess/ArrayTest?val[]=1&val[]=2&val[]=3 I write: ActionResult ArrayTest (String[] val) But this only works if the query string to remove the "[]"

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• How to display a jQuery and Javascript generated 2 dimensional array in HTML?

  - by user1730439

  I am trying to create a table of 100 random numbers, the random numbers are from 0 to 100. I need to display the 100 random numbers as a 10 by 10 matrix in HTML, using JS and jQuery. The code that I have been working on displays the last array 10 times. Here is the code: <html> <head> <title>My Web Page</title> <script type = "text/javascript" src = "http://code.jquery.com/jquery-1.8.2.min.js" /> </script> </head> <body> <h1 id = "randData">Randomize Data</h1> <button id = "myRandomizeBtn">Randomize</button> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> </body> <script type="text/javascript"> $("#myRandomizeBtn").bind("click",randomizeHandler); function randomizeHandler(evt) { var n = 10; var data = new Array(); for (var i = 0; i < n; i++) { for (var j = 0; j < n; j++) { data[i,j] = Math.floor(100*Math.random()); $("p").text(data); } $("br").text(data); } } </script> </html>

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• Why do two array values look the same, but don't evaluate as equal?

  - by kevtrout

  When I compare two array values I see two strings that look the same. php doesn't agree. $array1 = ('address'=>'32 Winthrop Street','state'=>'NY'); $array2 = ('address'=>'32 Winthrop Street'); $results = array_diff_assoc('$array1, $array2); var_dump($results) //echos ['address'] => string(18) "32 Winthrop Street" ['state']=>'NY' Why is this?

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• How can i add all of my array values together in PHP?

  - by Tapha

  How can i add all of my array values together in PHP? Is there a function for this or no? Thank you.

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• How to share an array in Python with a C++ Program?

  - by mellort

  I two programs running, one in Python and one in C++, and I need to share a two-dimensional array (just of decimal numbers) between them. I am currently looking into serialization, but pickle is python-specific, unfortunately. What is the best way to do this? Thanks

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• How do I access the array submit() calls in the dom?

  - by Alex

  I want to grab all the inputs inside a form, in order to submit them. The point of this is to use jquery's ajax to submit a dynamically sized form. Surely there must be an array inside the dom somewhere which i can just do something like... docment.forms['form'].elements which only lists inputs for that form, meaning I can loop through them and grab their values to play around with?

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• Why would $this->data show up an empty array after submit?

  - by user150253

  In Cakephp Why would $this-data show up an empty array after submit? i am using the security component.

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