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How To Handle Index Out Of Range Exception In C#

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for (int ctr = 0; ctr < values.Length; ctr++) Console.Write("{0} ", values.GetValue(ctr)); } } // The example displays the following output: // Unhandled Exception: // System.IndexOutOfRangeException: Index was outside the bounds Permalink Posted 8-Mar-11 2:21am Olivier Levrey23.7K v2 Comments Anele.Ngqandu 9-Mar-11 0:37am K thanx, it works Rate this: Please Sign up or sign in to vote. Check the number of objects in a collection to make sure the index you're about to request, exists. Here's the code in question. this contact form

This post has been edited by Ryano121: 25 September 2011 - 08:41 AM Was This Post Helpful? 0 Back to top MultiQuote Quote + Reply #7 donderma New D.I.C Head If the result of the computation is unexpected, it might result in an IndexOutOfRangeException exception. Editor.CS void UpdateTile () { if (tile == null || !inRange) return; if (deleting) { if (map.instances[index] != null) { DestroyImmediate (map.instances[index].gameObject); map.instances[index] = null; } } else { if (map.instances[index] If not, you would need to search for the value in the whole gridview, for that you need to use the Count property to loop through the content of the gridview. http://stackoverflow.com/questions/24812679/what-is-an-index-out-of-range-exception-and-how-do-i-fix-it

How To Handle Index Out Of Range Exception In C#

Trying to use or enumerate a result set, collection, or array returned by a query without testing whether the returned object has any valid data. Understand that English isn't everyone's first language so be lenient of bad spelling and grammar. How to Avoid In this examples let me assume, for simplicity, that arrays are always monodimensional and 0-based. Join them; it only takes a minute: Sign up index out of range exception in c# up vote 0 down vote favorite This is my DataAccessLayer public string GetMinISecPer(ISecuritySummmary iSecObj) {

How to avoid Johnson noise in high input impedance amplifier How do you grow in a skill when you're the company lead in that area? Array Length In C#, usually, arrays are 0-based. Use either: reader[0].ToString() Or you could name the column: select cast(@testValue as varchar(20)) As [testValue] Then call what you currently do. Index Was Out Of Range Must Be Non Negative And Less Than The Size Of The Collection In Asp Net Keyboard shortcut to search for text in MS Outlook 2007 Previous company name is ISIS, how to list on CV?

C#VB Copy using System; public class Example { public static void Main() { Array values = Array.CreateInstance(typeof(int), new int[] { 10 }, new int[] { 1 }); int value = 2; If you attempt to use a negative number as an index, or a number that is larger than Size-1, you're going to get an error. but this answer is right......... http://stackoverflow.com/questions/20940979/what-is-indexoutofrangeexception-and-how-do-i-fix-it You’ll be auto redirected in 1 second. .NET Framework 4.6 and 4.5 .NET Framework Class Library System System IndexOutOfRangeException Class IndexOutOfRangeException Class IndexOutOfRangeException Class _AppDomain Interface AccessViolationException Class Action Delegate Action(T)

You’ll be auto redirected in 1 second. Index Out Of Range Exception In C# Gridview Is it right? when ever we try to access an array,list etc we can only access the existing arrays. Can't trust out-of-function initialization.

C# Index Was Out Of Range Must Be Non Negative And Less Than The Size Of The Collection

if (array.Length > 1 && array.Element[0].Object.Length > 0 || array.Element[1].Object.Length > 0) //making sure there's at least one Object array that has values { if (array.Element[0].Object[0].Item.Length != 0 || array.Element[1].Object[0].Item.Length != https://msdn.microsoft.com/en-us/library/system.indexoutofrangeexception(v=vs.110).aspx In next example wrong parameters may cause IndexOutOfRangeException, users of this function may expect this because they're passing an array but it's not always so obvious. How To Handle Index Out Of Range Exception In C# Your Email Password Forgot your password? Index Out Of Range C# Rice 2,82731633 add a comment| up vote 0 down vote Could you do something like: if(array.Element[0] != null || array.Element[1] != null){ //execute code } share|improve this answer answered Apr 11

Browse other questions tagged c# .net indexoutofrangeexception or ask your own question. I suspect though a quick fix would be to change the constructor to - public SeatManager() { m_totNumOfSeats = 15; m_nameList = new string[m_totNumOfSeats]; m_priceList = new double[m_totNumOfSeats]; } Although again When something went wrong and you can't figure out what happens with a quick look at your code then you have to resort an old friend: debugger. it is not the same error anymore after your change but I get a different error now public partial class MainForm : Form { private const int m_numOfSeats = 60; private Index Was Out Of Range. Must Be Nonnegative C#

Current state of Straus's illumination problem Previous company name is ISIS, how to list on CV? No need to follow a node list, simple math! that does not check .... navigate here Make an ASCII bat fly around an ASCII moon Is it illegal for regular US citizens to possess or read the Podesta emails published by WikiLeaks?

SQLDataReader MSDN[^] Like this: int a = reader.GetInt32(reader.GetOrdinal("productID")); Permalink Posted 8-Mar-11 2:22am Manjinder.Singh713 Updated 8-Mar-11 2:26am v2 Comments Anele.Ngqandu 9-Mar-11 0:38am K it works. Index Out Of Range Exception Was Unhandled By User Code In C# Er, he was asking how to do that. –S.L. I am checking values between two datagridviews and if the value does not exist in one of them I need to insert to value.

If the count is greater than the number you want to check, then the object does not exist, and you'll get the exception.

If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. However, If I don't have Element[1], I get the Index Out of Range exception. Are non-english speakers better protected from (international) Phishing? Must Be Nonnegative And Less Than The Size Of The Collection Parameter Name Index This is a basic concept and the reason CG suggested you get a book.

Comment Add comment · Show 1 · Share 10 |3000 characters needed characters left characters exceeded ▼ Viewable by all users Viewable by moderators Viewable by moderators and the original poster Browse other questions tagged c# sql-server stored-procedures indexoutofrangeexception or ask your own question. If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. his comment is here Arrays Do Not Grow An array is fast.

Instead of handling the exception, you should diagnose the cause of the error and correct your code. If you answer yes to all these questions then you'll find good help here on StackOverflow but please first check for that by yourself. Solution 1 Accept Solution Reject Solution It can't find your field named productID Go to your SQL query window and execute procReturnAllProducts, does that field exist in the result set? we are all here as community......

if (array.Element[0].Object.Length > 0 || array.Element[1].Object.Length > 0) //making sure there's at least one Object array that has values { if (array.Element[0].Object[0].Item.Length != 0 || array.Element[1].Object[0].Item.Length != 0) //this is where It is because items are contiguous in memory so memory address can be calculated (and increment is just an addition). High School Trigonometric Integration Standardisation of Time in a FTL Universe Sci-Fi movie, about binary code, aliens, and headaches Meaning of grey and yellow/brown colors of buildings in google maps? How to check access permissions on items for a user via the Security API?

If this happens in production then you'd better to add assertions in incriminated code, probably we won't see in your code what you can't see by yourself (but you can always C#VB Copy using System; using System.Collections.Generic; public class Example { static List numbers = new List(); public static void Main() { int startValue; string[] args = Environment.GetCommandLineArgs(); if (args.Length < 2) asked 2 years ago viewed 57904 times active 2 years ago Blog Stack Overflow Podcast #91 - Can You Stump Nick Craver? Sci-Fi movie, about binary code, aliens, and headaches Hit a curb; chewed up rim and took a chunk out of tire.

Are you expecting both gridview to have the items sorted in some fashion, so, each index should have the same value? when to use Array vs List –tnw Jul 17 '14 at 20:19 you may want to mention that indexer can't be used to add new items to the list for (int o = 0; o < array.Element[i].Object.length; ++o) { if (array.Element[i].Object[o] != null && !string.IsNullOrEmpty(array.Element[i].Object[o].Item)) { Now, with all of that ugly nested loopyness, we've found out that your Item