Not All Code Paths Return A Value C# Error
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a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up c# returning error “not all code paths return a value” up vote 17 down not all code paths return a value ienumerator vote favorite 6 I'm trying to write code that returns whether or not a given integer is or is not divisible evenly by 1 to 20, but i keep receiving "error CS0161: 'ProblemFive.isTwenty(int)': not all code paths return a value" Please help. Here is my code: public static bool isTwenty(int num) { for(int j = 1; j <= 20; j++) { if(num % j != 0) { return false; } not all code paths return a value in asp.net c# else if(num % j == 0 && num == 20) { return true; } } } c# share|improve this question asked Jan 17 '14 at 20:47 user115185 89114 migrated from programmers.stackexchange.com Jan 17 '14 at 22:48 This question came from our site for professionals, academics, and students working within the systems development life cycle who care about creating, delivering, and maintaining software responsibly. 5 Your code doesn't make sense but the error message is quite clear. You need to return a value even if both your if conditions are false for 20 iterations. –ChaosPandion Jan 17 '14 at 20:52 4 You're thinking like a human, not a compiler. The compiler doesn't know what you are thinking, or how the logic is supposed to flow (past optimization). What happens if a value doesnt match either 'if'? –GrandmasterB Jan 17 '14 at 21:08 add a comment| 6 Answers 6 active oldest votes up vote 34 down vote You're missing a return statement. When the compiler looks at your code, it's sees a third path (the else you didn't code for) that could occur but doesn't return a value. Hence not all code paths return a value. For my suggested fix, I put a return after your loop ends. The
.NET Framework > Visual C# Question 0 Sign in to vote Hi there, i am just starting out using CLR for the firs time however i amstrugglingtodebuga user defined function the function is supposed to return a string (file
Not All Code Paths Return A Value Typescript
address) based on a filename inputted. i have a directory hard coded in which all the not all code paths return a value unity c# file will reside. i am reciveing a 'not all code paths return a value' error message against SqlString FindMyLocation(String location) Can anyone help? thanks ---------------------------See
How To Fix Not All Code Paths Return A Value
Code Below----------------------------------- using System; using System.Data; using System.IO; using System.Data.SqlClient; using System.Data.SqlTypes; using Microsoft.SqlServer.Server; public partial class UserDefinedFunctions { [Microsoft.SqlServer.Server.SqlFunction] public static SqlString FindMyLocation(String location) { try http://stackoverflow.com/questions/21197410/c-sharp-returning-error-not-all-code-paths-return-a-value { string[] dirs = Directory.GetFiles(@"\\server01\DataFolder", location, SearchOption.AllDirectories); foreach (string dir in dirs) { return dir ; } } catch (Exception e) { string address = "No File"; https://social.msdn.microsoft.com/Forums/vstudio/en-US/ee159476-495b-4c77-b475-c2806cba3794/c-not-all-code-paths-return-a-value?forum=csharpgeneral return address ; } } } Tuesday, January 08, 2013 9:55 AM Reply | Quote Answers 1 Sign in to vote Your function returns just one value, not a collection, and this is also what happens in the foreach loop. "return" is final. It will quit the function at that point, returning just the first value found in the loop. If there is nothing in dirs (an empty collection) it cannot return anything, so falls out of the foreach loop having done nothing, and hence the error. If there is nothing in the "dirs" collection, what is returned? The simple fix is to add return after the foreach, as a "catch-all" using System; using System.Data; using System.IO; using System.Data.SqlClient; using System.Data.SqlTypes; using Microsoft.SqlServer.Server; public partial class UserDefinedFunctions { [Microsoft.SqlServer.Server.SqlFunction] public static SqlString FindMyLocation(String location) { try { string[] dirs = Directory.GetFiles(@"\\server01\DataFolder", location, SearchOption.AllDirectories); foreach (string dir in dirs) { return dir ; } return null; } catch (Exception e) { string address = "No File"; return address ; } } } However, this does not solve the issue that your function only returns one value, not a collection, as I am guessing the function should do. However, without questioning your actual functionality, this is the answer to your specific question. Regards
Answers Feedback Issue Tracker Blog Evangelists User Groups Navigation Home Unity Industries Showcase Learn Community Forums Answers Feedback Issue Tracker Blog http://answers.unity3d.com/questions/1034385/c-not-all-code-paths-return-a-value.html Evangelists User Groups Get Unity Asset Store Unity account You need a http://www.codeproject.com/Questions/303345/Not-all-code-paths-return-a-value-Please-explain-a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account Language Chinese Spanish Japanese Korean Portuguese Ask a question Spaces Default Help Room META Moderators Topics Questions Users Badges Home / Help Room not all / 0 Question by TheBlackBox · Aug 23, 2015 at 10:07 PM · c#errorcontrollerpathsreturn value [C#] Not all code paths return a value Hey there, So I'm working on some random dungeon-gen, and up until now it's being going great. I am getting the error Not all code paths return a value I looked into the error, tweaked my not all code code a little and I'm still not making any progress. Let me post my code. using UnityEngine; using System.Collections.Generic; public class DTileMap { protected class DRoom { public int left; public int top; public int width; public int height; public int right { get {return left + width - 1;} } public int bottom { get { return top + height - 1; } } public bool CollidesWith(DRoom other) { if( left > other.right-1 ) return false; if( top > other.bottom-1 ) return false; if( right < other.left+1 ) return false; if( bottom < other.top+1 ) return false; return true; } } int size_x; int size_y; int[,] map_data; List
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