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• Simple javascript string problem in ie6 and ie7

  - by Jeff Lamb

  I have a very simple function that takes a list of comma separated (x,y) points and imports them into a graph. I have FF, Chrome and IE8 installed. I use IETester to test for IE6 and IE7. // Import Data this.Import = function(data) { alert("Data in: "+data); var d; // Make sure the first and the last are start/ending parenthesis if ( (data[0] != '(') || (data[data.length-1] != ')') ) { alert("After if: "+data[0]+" "+data[data.length-1]); return false; } ... In Chrome, FF and IE8, I don't see the "After if:" alert. In IE6 and IE7, I see the following two alerts: Data in: (52,16),(100,90) After if: undefined undefined The "Data in" alert matches in all browsers. Any ideas?

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• How to check if an array value exists

  - by Uffo

  How can I check this: $something = array('say' => 'bla', 'say' => 'omg'); How can I check if the $something['say'] has the value of 'bla' or 'omg' Best Regards,

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• PHP: Array access short-hand?

  - by motionman95

  In Javascript, after executing a function I can immediately get the an element of the array returned by the function, like so: myFunc("birds")[0] //gets element zero returned from "myFunc()" This is much easier and faster than doing this: $myArray = myFunc("birds"); echo $myArray[0]; Does PHP have a similar shorthand to javascript? I'm just curious. Thanks in advance!

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• Specific complex array sorting

  - by TheDeadMedic

  Okay, a before; Array ( 'home' => array('order' => 1), 'about' => array(), 'folio' => array('order' => 2), 'folio/web' => array('order' => 2), 'folio/print' => array('order' => 1) 'contact' => array('order' => 2) ) And a desired after; Array ( 'home' => array('order' => 1), 'contact' => array('order' => 2), 'folio' => array('order' => 2), 'folio/print' => array('order' => 1), 'folio/web' => array('order' => 2), 'about' => array() ) I know, horrific (don't ask!) See how the slash in the key indicates children, and how the order is nested accordingly? And items without orders are simply shifted to the bottom. But also how multiple 'same level' items with the same order are merely sorted by key?

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• PHP array taking up too much memory

  - by Dylan Taylor

  I have a multidimensional array. The array itself is fine. My problem is that the script takes up monster amounts of memory, and since I'm running this on my MAMP install on my iBook G4, my computer freezes up. Below is the full script. $query = "SELECT * FROM posts ORDER BY id DESC LIMIT 10"; $result = mysql_query($query); $posts = array(); while($row = mysql_fetch_array($result)){ $posts[$row["id"]]['post_id'] = $row["id"]; $posts[$row["id"]]['post_title'] = $row["title"]; $posts[$row["id"]]['post_text'] = $row["text"]; $posts[$row["id"]]['post_tags'] = $row["tags"]; $posts[$row["id"]]['post_category'] = $row["category"]; foreach ($posts as $post) { echo $post["post_id"]; } Is there a workaround that still achieves my goal (to export the MySQL query rows to an array)? -Dylan

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• If I'm using a 1d array to represent a square board, how can I take my index and check the sqaures a

  - by FrankTheTank

  If I have a 4x4 gameboard which I'm representing in my program as a 1d integer array of size 16. How can I get the indexs of the squares above, below, to the left and to the right any given index? So, for example: A = { 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 } Which represents this board 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lets say I am currently on index #8 in the board (value = 7). How can I get the index for 4 (value = 3) , 5 (value = 6), 10 (value = 11) and realize that there is no right square because it is on the right hand edge of the board. I know I need to use some modulus math but I'm failing to come up with the right way to get the indexes for adjacent squares. I'm thinking something like... if ((i % 4) + 1 < 3) right = i + 1; if ((i % 4) - 1 > 0) left = i - 1; if ((i % 4) + 4 < 15) bottom = i + 4; if ((i % 4) - 4 > 0 ) top = i - 4; Does this seem like it is the right approach?

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• Converting a flat array to a nested array

  - by matte

  Hi, I am trying to convert a flat array to a nested array depending on the 'level' data of each array item. 'level' data shows us if current array item is a child, a parent or a sibling. Here is the flat array: $sequentialArray = array( array('title'=>'Page 1', 'level'=>0), array('title'=>'Page 2', 'level'=>0), array('title'=>'Page 3', 'level'=>1), array('title'=>'Page 4', 'level'=>1), array('title'=>'Page 5', 'level'=>2), array('title'=>'Page 6', 'level'=>0), array('title'=>'Page 7', 'level'=>1), array('title'=>'Page 8', 'level'=>0) ); And here is the expected result: $nestedArray = array( array('title'=>'Page 1', 'children'=>array()), array('title'=>'Page 2', 'children'=>array( array('title'=>'Page 3', 'children'=>array()), array('title'=>'Page 4', 'children'=>array( array('title'=>'Page 5', 'children'=>array()) )), )), array('title'=>'Page 6', 'children'=>array( array('title'=>'Page 7', 'children'=>array()) )), array('title'=>'Page 8', 'children'=>array()), ); I tried using references with array indexes but that didn't work. Any ideas?

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• array iteration strstr in c

  - by lex0273

  I was wondering if it's safe to do the following iteration to find the first occurrence of str within the array or if there is a better way. Thanks #include <stdio.h> #include <string.h> const char * list[] = {"One","Two","Three","Four","Five"}; char *c(char * str) { int i; for (i = 0; i < 5; i++) { if (strstr(str, list[i]) != NULL) return list[i]; } return "Not Found"; } int main() { char str[] = "This is a simple string of hshhs wo a char"; printf("%s", c(str)); return 0; }

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• C# Array of Dictionaries

  - by Nave

  I want to create an array of Dictionaries. But the array size is unknown. For integer, i used List to obtain the integer array of unknown size. But in the case of Dictionary, am not able to create a list of Dictionary. Is thr any wayz by which this can be done? Dictionary(int, String) paramList=null;I am want to create the array of paramList(above). I am using C Sharp.

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• Rotate array clockwise

  - by user69514

  I have a two dimensional array that I need to rotate 90 degrees clockwise, however I keep getting arrayindexoutofbounds... public int[][] rorateArray(int[][] arr){ //first change the dimensions vertical length for horizontal length //and viceversa int[][] newArray = new int[arr[0].length][arr.length]; //invert values 90 degrees clockwise by starting from button of //array to top and from left to right int ii = 0; int jj = 0; for(int i=0; i<arr[0].length; i++){ for(int j=arr.length-1; j>=0; j--){ newArray[ii][jj] = arr[i][j]; jj++; } ii++; } return newArray; }

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• PHP array taking up to much memory

  - by Dylan Taylor

  I have a multidimensional array. The array itself is fine. My problem is that the script takes up monster amounts of memory, and since I'm running this on my MAMP install on my iBook G4, my computer freezes up. Below is the full script. $query = "SELECT * FROM posts ORDER BY id DESC LIMIT 10"; $result = mysql_query($query); $posts = array(); while($row = mysql_fetch_array($result)){ $posts[$row["id"]]['post_id'] = $row["id"]; $posts[$row["id"]]['post_title'] = $row["title"]; $posts[$row["id"]]['post_text'] = $row["text"]; $posts[$row["id"]]['post_tags'] = $row["tags"]; $posts[$row["id"]]['post_category'] = $row["category"]; foreach ($posts as $post) { echo $post["post_id"]; } Is there a workaround that still achieves my goal (to export the MySQL query rows to an array)? -Dylan

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• "org.json.JSONArray implements Serializable": What's the best option to achieve this?

  - by Daxon

  I am using Grails Webflow, what ever object I pass to a view, it must be Serialized. My domain models "implement Serializable", so they work. The problem is when I get a response from a WebService. It is of the org.json.JSONArray class. I just want to pass the whole Array over to the view yet it doesn't implement Serializable, so it fails, Any thoughts on how I can pass this, or my best option? Can I just edit the source of the org.json library and make every class "imp Serializable"? Or process the result into Domain objects that do "imp Serializable"

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• Objective C Array and Object Release

  - by david

  Hi, I have a newbie question regarding when to release the elements of a NSArray. See following pseudo code: NSMutalbeArray *2DArray = [[NSMutableArray alloc] initWithCapacity:10]; for (int i=0;i<10;i++) { NSMutableArray *array = [[MSMutableArray alloc] initWithCapacity:5]; for (int j=0;j<5;j++) { MyObject *obj = [[MyObject alloc] init]; [array addObject:obj]; [obj release]; } [2DArray addObject:array]; [array release]; } // use 2DArray to do something [2DArray release] My question here is, when I release 2DArray, do I need to explicitly release each of its element (array) first? Also, before I release the "array" object, do I need to release each of its element (MyObject) first? I am new to Objective C. Please help. thanks.

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• Algorithm: efficient way to remove duplicate integers from an array

  - by ejel

  I got this problem from an interview with Microsoft. Given an array of random integers, write an algorithm in C that removes duplicated numbers and return the unique numbers in the original array. E.g Input: {4, 8, 4, 1, 1, 2, 9} Output: {4, 8, 1, 2, 9, ?, ?} One caveat is that the expected algorithm should not required the array to be sorted first. And when an element has been removed, the following elements must be shifted forward as well. Anyway, value of elements at the tail of the array where elements were shifted forward are negligible. Update: The result must be returned in the original array and helper data structure (e.g. hashtable) should not be used. However, I guess order preservation is not necessary. Update2: For those who wonder why these impractical constraints, this was an interview question and all these constraints are discussed during the thinking process to see how I can come up with different ideas.

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• PostgreSQL JOIN with array type with array elements order, how to implement?

  - by Adiasz

  Hello I have two tables in database: CREATE TABLE items( id SERIAL PRIMARy KEY, ... some other fields ); This table contains come data row with unique ID. CREATE TABLE some_choosen_data_in_order( id SERIAL PRIMARy KEY, id_items INTEGER[], ); This table contains array type field. Each row contains values of IDs from table "items" in specyfic order. For example: {2,4,233,5}. Now, I want to get data from table "items" for choosen row from table "some_choosen_data_in_order" with order for elements in array type. The my attempt is JOIN: SELECT I.* FROM items AS I JOIN some_choosen_data_in_order AS S ON I.id = ANY(S.id_items) WHERE S.id = ? Second attempt was subquery like: SELECT I.* FROM items AS I WHERE I.id = ANY (ARRAY[SELECT S.id_items FROM some_choosen_data_in_order WHERE id = ?]) But none of them keep IDs order in array field. Could You help me, how to get data from "items" table with correspond with array IDs order from "some_choosen_data_in_order" table for specyfic row?

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• Java - Highest, Lowest and Average

  - by Emily

  Hello, I've just started studying and I need help on one of my exercises. I need the end user to input a rain fall number for each month. I then need to out put the average rainfall, highest month and lowest month and the months which rainfall was above average. I keep getting the same number in the highest and lowest and I have no idea why. I am seriously pulling my hair out. Any help would be greatly appreciated. This is what I have so far: public class rainfall { /** * @param args */ public static void main(String[] args) { int[] numgroup; numgroup = new int [13]; ConsoleReader console = new ConsoleReader(); int highest; int lowest; int index; int tempVal; int minMonth; int minIndex; int maxMonth; int maxIndex; System.out.println("Welcome to Rainfall"); for(index = 1; index < 13; index = index + 1) { System.out.println("Please enter the rainfall for month " + index); tempVal = console.readInt(); while (tempVal>100 || tempVal<0) { System.out.println("The rating must be within 0...100. Try again"); tempVal = console.readInt(); } numgroup[index] = tempVal; } lowest = numgroup[0]; for(minIndex = 0; minIndex < numgroup.length; minIndex = minIndex + 1); { if (numgroup[0] < lowest) { lowest = numgroup[0]; minMonth = minIndex; } } highest = numgroup[1]; for(maxIndex = 0; maxIndex < numgroup.length; maxIndex = maxIndex + 1); { if (numgroup[1] > highest) { highest = numgroup[1]; maxMonth = maxIndex; } } System.out.println("The average monthly rainfall was "); System.out.println("The lowest monthly rainfall was month " + minIndex); System.out.println("The highest monthly rainfall was month " + maxIndex); System.out.println("Thank you for using Rainfall"); } private static ConsoleReader ConsoleReader() { return null; } } Thanks, Emily

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• Count all lists of adjacent nodes stored in an array.

  - by Ben Brodie

  There are many naive approaches to this problem, but I'm looking for a good solution. Here is the problem (will be implemented in Java): You have a function foo(int a, int b) that returns true if 'a' is "adjacent" to 'b' and false if 'a' is not adjacent to 'b'. You have an array such as this [1,4,5,9,3,2,6,15,89,11,24], but in reality has a very long length, like 120, and will be repeated over and over (its a genetic algorithm fitness function) which is why efficiency is important. I want a function that returns the length of each possible 'list' of adjacencies in the array, but not including the 'lists' which simply subsets of a larger list. For example, if foo(1,4) - true, foo(4,5) - true, foo(5,9)- false, foo(9,3) & foo(3,2) & foo(2,6), foo(6,15) - true, then there are 'lists' (1,4,5) and (9,3,2,6), so length 3 and 4. I don't want it to return (3,2,6), though, because this is simply a subset of 9,3,2,6. Thanks.

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• How to shorthand array declaration in a method call?

  - by Paul Sasik

  Hi all, This is hopefully a softball syntax question: I need to call a method with an empty Object array for evaluation and set initial state. In C# I would just do this: func(new Object[]{}); In VB.NET I am forced to do this: Dim ctrls() As Control = {} func(ctrls) Is there a way to shorthand the call in VB.NET and have everything happen in one line of code? P.S. VB-bashing will earn bonus points. ;-)

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• memcpy(), what should the value of the size parameter be?

  - by Tomas

  Hi, I want to copy an int array to another int array. They use the same define for length so they'll always be of the same length. What are the pros/cons of the following two alternatives of the size parameter to memcpy()? memcpy(dst, src, ARRAY_LENGTH*sizeof(int)); or memcpy(dst, src, sizeof(dst); Will the second option always work? Regardless of the content? One thing that favors the last one is that if the array were to change, it'll be some house-keeping to update the memcpy()'s. Thanks

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• AddObjectsFromArray does not work properly

  - by Sheehan Alam

  I have two NSMutableArrays: NSMutableArray* currentMessages NSMutableArray* items I am trying to copy the contents of items into currentMessages as such: [self.currentMessages addObjectsFromArray:self.items]; When I am debugging self.items contains 30 objects. After this operation self.currentMessages contains 0 objects. Why is the copy not working?

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• Rails 3 : create two dimensional hash and add values from a loop

  - by John

  I have two models : class Project < ActiveRecord::Base has_many :ticket attr_accessible .... end class Ticket < ActiveRecord::Base belongs_to :project attr_accessible done_date, description, .... end In my ProjectsController I would like to create a two dimensional hash to get in one variable for one project all tickets that are done (with done_date as key and description as value). For example i would like a hash like this : What i'm looking for : @tickets_of_project = ["done_date_1" => ["a", "b", "c"], "done_date_2" => ["d", "e"]] And what i'm currently trying (in ProjectsController) ... def show # Get current project @project = Project.find(params[:id]) # Get all dones tickets for a project, order by done_date @tickets = Ticket.where(:project_id => params[:id]).where("done_date IS NOT NULL").order(:done_date) # Create a new hash @tickets_of_project = Hash.new {} # Make a loop on all tickets, and want to complete my hash @tickets.each do |ticket| # TO DO #HOW TO PUT ticket.value IN "tickets_of_project" WITH KEY = ticket.done_date ??** end end I don't know if i'm in a right way or not (maybe use .map instead of make a where query), but how can I complete and put values in hash by checking index if already exist or not ? Thanx :)

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• How do I write an IF ELSE to check string contents of an array?

  - by Michael Robinson

  I'm trying to write an IF ELSE statement to enable shipping, If user doesn't add an address the array contents remain as "-" & "-" for the two items in the array. I want to check to see if those are in the array, if they are then I want to enableshipping. Here is the code for getting the array: NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *fullFileName = [NSString stringWithFormat:@"%@/arraySaveFile", documentsDirectory]; NSMutableArray *array = [[NSMutableArray alloc] initWithContentsOfFile:fullFileName]; How do I write this first line to look for the "-" & "-"? if ([fullFileName isEqualToString:@"-","-"]) { [nnNEP EnableShipping]; } else { [nnNEP DisableShipping]; } Thanks, michael

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• php remove duplicates from array..

  - by SoulieBaby

  Hi all, I was wondering if anyone could help me out, I'm trying to find a script that will check my entire array and remove any duplicates if required, then spit out the array in the same format. Here's an example of my array (as you will see there are some duplicates): Array ( [0] => Array ( [0] => stdClass Object ( [bid] => 34 [name] => Adrianos Pizza & Pasta [imageurl] => sp_adrian.gif [clickurl] => # ) [1] => stdClass Object ( [bid] => 42 [name] => Ray White Mordialloc [imageurl] => sp_raywhite.gif [clickurl] => http://www.raywhite.com/ ) [2] => stdClass Object ( [bid] => 48 [name] => Beachside Osteo [imageurl] => sp_beachside.gif [clickurl] => http://www.beachsideosteo.com.au/ ) [3] => stdClass Object ( [bid] => 57 [name] => Southern Suburbs Physiotherapy Centre [imageurl] => sp_sspc.jpg [clickurl] => http://www.sspc.com.au ) [4] => stdClass Object ( [bid] => 52 [name] => Mordialloc Travel and Cruise [imageurl] => sp_morditravel.jpg [clickurl] => http://www.yellowpages.com.au/vic/mordialloc/mordialloc-travel-cruise-13492525-listing.html ) [5] => stdClass Object ( [bid] => 37 [name] => Mordialloc Cellar Door [imageurl] => sp_cellardoor.gif [clickurl] => ) [6] => stdClass Object ( [bid] => 53 [name] => Carmotive [imageurl] => sp_carmotive.jpg [clickurl] => http://www.carmotive.com.au/ ) ) [1] => Array ( [0] => stdClass Object ( [bid] => 55 [name] => 360South [imageurl] => sp_360.jpg [clickurl] => ) [1] => stdClass Object ( [bid] => 40 [name] => Ripponlea Mitsubishi [imageurl] => sp_mitsubishi.gif [clickurl] => ) [2] => stdClass Object ( [bid] => 57 [name] => Southern Suburbs Physiotherapy Centre [imageurl] => sp_sspc.jpg [clickurl] => http://www.sspc.com.au ) [3] => stdClass Object ( [bid] => 52 [name] => Mordialloc Travel and Cruise [imageurl] => sp_morditravel.jpg [clickurl] => http://www.yellowpages.com.au/vic/mordialloc/mordialloc-travel-cruise-13492525-listing.html ) [4] => stdClass Object ( [bid] => 37 [name] => Mordialloc Cellar Door [imageurl] => sp_cellardoor.gif [clickurl] => ) [5] => stdClass Object ( [bid] => 53 [name] => Carmotive [imageurl] => sp_carmotive.jpg [clickurl] => http://www.carmotive.com.au/ ) ) [2] => Array ( [0] => stdClass Object ( [bid] => 44 [name] => Mordialloc Personal Trainers [imageurl] => sp_mordipt.gif [clickurl] => # ) [1] => stdClass Object ( [bid] => 36 [name] => Big River [imageurl] => sp_bigriver.gif [clickurl] => ) [2] => stdClass Object ( [bid] => 52 [name] => Mordialloc Travel and Cruise [imageurl] => sp_morditravel.jpg [clickurl] => http://www.yellowpages.com.au/vic/mordialloc/mordialloc-travel-cruise-13492525-listing.html ) [3] => stdClass Object ( [bid] => 37 [name] => Mordialloc Cellar Door [imageurl] => sp_cellardoor.gif [clickurl] => ) [4] => stdClass Object ( [bid] => 53 [name] => Carmotive [imageurl] => sp_carmotive.jpg [clickurl] => http://www.carmotive.com.au/ ) ) [3] => Array ( [0] => stdClass Object ( [bid] => 41 [name] => Print House Graphics [imageurl] => sp_printhouse.gif [clickurl] => ) [1] => stdClass Object ( [bid] => 49 [name] => Kim Reed Conveyancing [imageurl] => sp_kimreed.jpg [clickurl] => ) [2] => stdClass Object ( [bid] => 37 [name] => Mordialloc Cellar Door [imageurl] => sp_cellardoor.gif [clickurl] => ) [3] => stdClass Object ( [bid] => 53 [name] => Carmotive [imageurl] => sp_carmotive.jpg [clickurl] => http://www.carmotive.com.au/ ) ) [4] => Array ( [0] => stdClass Object ( [bid] => 38 [name] => Lowe Financial Group [imageurl] => sp_lowe.gif [clickurl] => http://lowefinancial.com/ ) [1] => stdClass Object ( [bid] => 58 [name] => Dicount Lollie Shop [imageurl] => new dls logo.jpg [clickurl] => ) [2] => stdClass Object ( [bid] => 53 [name] => Carmotive [imageurl] => sp_carmotive.jpg [clickurl] => http://www.carmotive.com.au/ ) ) [5] => Array ( [0] => stdClass Object ( [bid] => 45 [name] => Mordialloc Sporting Club [imageurl] => msc logo.jpg [clickurl] => ) [1] => stdClass Object ( [bid] => 33 [name] => Two Brothers [imageurl] => sp_2brothers.gif [clickurl] => http://www.2brothers.com.au/ ) ) [6] => Array ( [0] => stdClass Object ( [bid] => 46 [name] => Patterson Securities [imageurl] => cmyk patersons_withtag.jpg [clickurl] => ) [1] => stdClass Object ( [bid] => 56 [name] => Logical Services [imageurl] => sp_logical.jpg [clickurl] => ) ) [7] => Array ( [0] => stdClass Object ( [bid] => 59 [name] => Pure Sport [imageurl] => sp_psport.jpg [clickurl] => http://www.puresport.com.au/ ) [1] => stdClass Object ( [bid] => 51 [name] => Richmond and Bennison [imageurl] => sp_richmond.jpg [clickurl] => http://www.richbenn.com.au/ ) ) [8] => Array ( [0] => stdClass Object ( [bid] => 39 [name] => Main Street Mordialloc [imageurl] => main street cafe.jpg [clickurl] => ) [1] => stdClass Object ( [bid] => 50 [name] => Letec [imageurl] => sp_letec.jpg [clickurl] => www.letec.biz ) ) [9] => Array ( [0] => stdClass Object ( [bid] => 54 [name] => PPM Builders [imageurl] => sp_ppm.jpg [clickurl] => http://www.hotfrog.com.au/Companies/P-P-M-Builders ) [1] => stdClass Object ( [bid] => 43 [name] => Systema [imageurl] => sp_systema.gif [clickurl] => ) ) )

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• What data structure to use / data persistence

  - by Dave

  I have an app where I need one table of information with the following fields: field 1 - int or char field 2 - string (max 10 char) field 3 - string (max 20 char) field 4 - float I need the program to filter on field 1 based upon a segmented control and select a field 2 from a picker. From this data I need to look up field 4 to use in a calculation. Total records will be about 200. I never see it go above 400 - 500. I am going to use a singleton which I am able to do, I just need help with the structure for this with data persistence. What type of data structure should I use for this and should I use NSNumber, NSString, etc. or old data types like float, Char, etc. I thought about a struct put into an array but there is probably a better way. This is new to me so any help or reference to examples would be great. I also thought about a plist or dictionary but it looks like it is just a lookup and a field which obviously won't work. Core data looked like overkill to me. Also, with any recommendation how should I get initial data into it? I want the user to be able to edit and add to the database. Sorry for the old terms, you can see what generation I am from... Thanks in advance!!!!

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• Why is my code returning a Null Object Refrence error when using WatIn?

  - by Fuzz Evans

  I keep getting a Null Object Refrence Error, but can't tell why. I have a CSV file that contains 100 urls. The file is read into an array called "lines". public partial class Form1 : System.Windows.Forms.Form { string[] lines; public Form1() ... private void ReadLinksIntoMemory() { //this reads the chosen csv file into our "lines" array //and splits on comma's and new lines to create new objects within the array using (StreamReader sr = new StreamReader(@"C:\temp.csv")) { //reads everything in our csv into 1 long line string fileContents = sr.ReadToEnd(); //splits the 1 long line read in into multiple objects of the lines array lines = fileContents.Split(new string[] { ",", Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries); sr.Dispose(); } } The next part is where I get the null object error. When I try to use WatIn to go to the first item in the lines array it says I'm referencing a null object. private void GoToEditLinks() { for (int i = 0; i < lines.Length; i++) { //go to each link sequentially myIE.GoTo(lines[i].ToString()); //sleep so we can make sure the page loads System.Threading.Thread.Sleep(5000); } } When I debug the code it says that the GoTo request calls lines which is null. It seems like I need to declare the array, but don't I need to tell it an exact size to do that? Example: lines = new string[10] I thought I could use the lines.Length to tell it how big to make the array but that didn't work. What is weird to me is I can use the following code without problem: //returns the accurate number of urls that were in the CSV we read in earlier txtbx1.text = lines.Length; //or //this returns the last entry in the csv, as well as the last entry in the array TextBox2.Text = lines[lines.Length - 1]; I am confused why the array clearly has items in it, they can be called to fill a text box, but when I try to call them in my for loop it says its a null reference? UPDATE: By placing my cursor on both calls to lines and pressing f12 I find they both go to the same instance. The thought next is that I am not calling ReadLinksIntoMemory in time, below is my code: private void button1_Click(object sender, EventArgs e) { button1.Enabled = false; ReadLinksIntoMemory(); GoToEditLinks(); button1.Enabled = true; } Unless I'm mistaken the code says that the ReadLinksIntoMemory method must complete before GoToEditLinks can be called? If ReadLinksIntoMemory didn't finish in time I shouldn't be able to fill my text boxes with the lines array length and/or last entry. UPDATE: Stepping into the method GoToEditLinks() I see that lines is null before it calls: myIE.GoTo(lines[i]); but when it hits the goto command the value changes from null to the url it is suppose to go to, but at that same time it gives me the null object error? UPDATE: I added a IsNullOrEmpty check method and lines array passes it without any issue. I'm beginning to think it is an issue with WatIn and the myIE.GoTo command. I think this is the stack trace/call stack? Program.exe!Program.Form1.GoToEditLinks() Line 284 C# Program.exe!Program.Form1.button1_Click(object sender, System.EventArgs e) Line 191 + 0x8 bytes C# [External Code] Program.exe!Program.Program.Main() Line 18 + 0x1d bytes C# [External Code]

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