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Cannot Modify The Result Of An Unboxing Conversion C#

I think the following should work: private List Shortord = new List(); ... Firstly, having a mutable struct is generally a bad idea - it's likely to bite you sooner or later. As soon as you removed the no longer needed class instances from the list and there are no other references to these instances, you just can forget them without anxiety. That's where the copy comes in. http://ecoflashapps.com/cannot-modify/cannot-modify-result-unboxing-conversion-c.html

Regards Carl Johansson Hi, I guess you wrote something like this: ((SomeStruct)ar[0]).Field1 = ...; Change it to: SomeStruct s1 = (SomeStruct)ar[0]; s1.Field1 = ...; Regards, Mykola http://marss.co.ua Jun 20 '07 #2 Marked as answer by HarryBedi Thursday, October 01, 2009 3:46 PM Thursday, October 01, 2009 3:41 PM 0 Sign in to vote Yes I agree - i think i will be Compare elements iteratively How to disable the high priority publish option in SDL Tridion How safe is 48V DC? Login | Register Cannot Modify Header Form Resubmits Data On Refresh However all I get is a Cannot Modify Header Information - Headers already sent error ... http://stackoverflow.com/questions/17280547/why-can-i-not-modify-the-result-of-an-unboxing-conversion

Specific questions related to a brokerage account should be sent to your broker directly. From: marss Prev by Date: Re: frequent Sql exception Next by Date: Re: Open source proxy server Previous by thread: How to write a program such that it will delete itself You should use a method named Dispose() for this purpose.

This might be a general C# question. After all the mutable structs are only discouraged, not banned. –colinfang Jun 24 '13 at 16:53 2 Then you'd need to store the result of the boxing operation to a NT is an affiliated company to NinjaTrader Brokerage (“NTB”), which is an NFA registered introducing broker (NFA #0339976). In a mutable value-type you could assign to a single field of that type (either direct or through a property).

int myInt=1; object x=myInt;//box int unbox1=(int)x;//successful unbox int? The views and opinions expressed in this forum are those of the authors and do not necessarily reflect the official policy or position of NT or NTB. -- Fixed Width ---- I guess in that case you try to apply your new value to a copy of what is originally contained in the ArrayList, and therefore your modification doesn't make it back https://social.msdn.microsoft.com/Forums/en-US/30481c07-c326-41fd-a550-8578dea0e3cf/cannot-modify-the-result-of-an-unboxing-conversion?forum=csharplanguage Otherwise consider using a wrapper class. "Håkan Johansson"

So, you tend to need to do things like this: MyStruct x = (MyStruct) arrayList[5]; x.SomeProperty = 20; arrayList[5] = x; Now this problem doesn't apply to an array because array The content you requested has been removed. How to show that something is not completely metrizable The cost of switching to electric cars? If one supplier has delayed your project schedule should the other suppliers on the project be alerted to the new timeline?

Custom Object as Standard Controller: Plural Or Singular mona is not in the sudoers file. https://bytes.com/topic/c-sharp/answers/665395-cannot-modify-result-unboxing-conversion Why does the Minus World exist? object a=x; int Y=(int)a; //unboxing I think Random r=new Random(); object X=r; Random R=(Random)X; // casting c# boxing value-type share|improve this question edited Jan 19 '11 at 11:47 Steve 30.6k31931 asked View Answer Related Questions Comments Comment can't Submit.

Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! his comment is here Can you consolidate in one one type? Login | Register Do All C# Casts Result In Boxing/Unboxing I am curious to know if all casts in C# Result in boxing, and if not, are all casts a costly Dev centers Windows Office Visual Studio Microsoft Azure More...

I have an ArrayList instance to which I add two types of elements. If an image is rotated losslessly, why does the file size change? Thank you so much for your help. this contact form View Answer Related Questions Comments Comment can't Submit.

Login | Register Warning: Cannot Modify Header Information (With A Twist) Warning: Cannot Modify header information - headers already sent by (outputstarted at /home/ezekiel/public_html/boxsponsive/wp-content/themes/BoxSponsive-Portfolio/class.wp-less-styles.php:3) in/home/ezekiel/public_html/boxsponsive/wp-includes/pluggable.php on line 934So, I'm sure that Comment is Empty! Login | Register Wp-Nivo-Slider Producing Error "Cannot Modify Header Information - Headers...

That's why the line in which you do that compiles.

Your source code is: for (int i = 0; i < instruments.Count; i++) { VCV v = new VCV(); htVCV.Add(i,v); } I urge you to use Dictionary<> instead of Hashtable - A resulting question; what is meant by "mutable" value types? However, in the case of the struct type element, C# won't allow it. If casting a value type to something else, you depend on one of the two types involved to declare a casting operator that handles this.

That's how you're "supposed" to handle this case. I am using a ArrayList of struc “Osto”. Shansen General Programming 2 10-29-2009 05:26 AM Number of elements in data series gg80108 Strategy Development 21 04-20-2009 10:17 AM Referencing DataSeries elements in Multi-timeframe Strategies dbw451 Strategy Development 2 09-06-2008 http://ecoflashapps.com/cannot-modify/cannot-modify-the-result-of-an-unboxing-conversion-net.html It's analogue to Location.X = 10.

On Jun 20, 10:06 am, "Håkan Johansson"

Request you to reply so that I can do some research. Secondly, do I really have to create a new class with similar content of the struct to get rid of this error? Comment is Empty!