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Cannot Modify The Result Of An Unboxing Conversion

You could try using a Dictionary instead (which is pretty much a strongly-typed hash table). Browse other questions tagged c# boxing value-type or ask your own question. Login | Register Bash: Ulimit: Core File Size: Cannot Modify Limit: Operation Not Permitted bash: ulimit: core file size: cannot Modify limit: Operation not permittedI also tried setting ulimit to 50000 Comment is Empty! http://ecoflashapps.com/cannot-modify/cannot-modify-result-unboxing-conversion-c.html

You don't need any sort of cast expression to box though - for example your second line of code contains a boxing operation but no cast expression. Sometimes I need to change the field values of the elements held by the ArrayList. methods. Even with a dictionary, you can't modify a field of a stored value. http://stackoverflow.com/questions/17280547/why-can-i-not-modify-the-result-of-an-unboxing-conversion

Teenage daughter refusing to go to school Are there continuous functions for which the epsilon-delta property doesn't hold? Dear Jon! The NinjaTrader Support Forum is hosted and operated by NinjaTrader LLC (“NT”), a software development company which owns and supports the NinjaTrader trading platform. It could compile, but if it did it wouldn't work properly and you'd just be here asking why the code doesn't work.

Only risk capital should be used for trading and only those with sufficient risk capital should consider trading. Sometimes I need to change the field values of the elements held by the ArrayList. When you access an element of a collection class that stores objects, if the element type is a struct then the element is "boxed" which involves making a copy of the Regards Ralph Facebook Twitter YouTube Ralph View Public Profile Send a private message to Ralph Find More Posts by Ralph 01-19-2010, 05:48 AM #10 malmaa Member Join Date:

Why did the best potions master have greasy hair? This is an example of that. HTML :: table cells, etc... “NSUnknownKeyException” exception raised..applicaton crashes How do I add client-side form validation to a Drupal form? I now get an invalid cast excpetion Unable to cast object of type 'VCVDemo.VCV' to type 'System.Double[]'.

Why does low frequency RFID have a short read range? Name Required Email (User Name) Required Invalid email address. Why can't you modify that? –svick Jun 24 '13 at 16:49 The unboxed Point is a copy, the boxed version not. –leppie Jun 24 '13 at 17:00 2 Austin NinjaTrader Customer Service Use Kinetick, NinjaTrader’s preferred market data service - Learn More Free online training events - View Schedule Facebook Twitter YouTube NinjaTrader_Austin View Public Profile Send a

A very simple modification in my code. my site current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. A resulting question; what is meant by "mutable" value types? If I receive written permission to use content from a paper without citing, is it plagiarism?

However, in the case of the struct type element, C# won't allow it. his comment is here E.g ... However, according to your explanation in your last post I believe too the generic list is the better choice for your application. Using the following reference: http://www.dotnetperls.com/list Basically, to create a generic list to store values in, what needs to go in the "Variables" block, and what needs to go in the "Initialize"

Dev centers Windows Office Visual Studio Microsoft Azure More... When you access an element of a collection class that stores objects, if the element type is a struct then the element is "boxed" which involves making a copy of the 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 - http://ecoflashapps.com/cannot-modify/cannot-modify-the-result-of-an-unboxing-conversion-net.html The content you requested has been removed.

I cant see why? Name Required Email (User Name) Required Invalid email address. Are “Referendum” and “Plebiscite” the same in the meaning, or different in the meaning and nuance?

First of all, I don't really understand why.

I have tried the following code: for (int i = 0; i < instruments.Count; i++) { ((VCV)htVCV)[i].Mean = Mathematik.Statistics.Mean(((double[])htCandles.Values)); } But I have the following error Cannot modify the result of When you access an element of a collection class that stores objects, if the element type is a struct then the element is "boxed" which involves making a copy of the Alternatively you could consider a late list initialisaton, means to add a new element in the moment your code requires to get a new Osto object. View Answer Related Questions Comments Comment can't Submit.

Thanks! –Arjan Jan 19 '11 at 12:25 @Steve, same for you! (See my comment above.) Like: did you try to re-order the tags? –Arjan Jan 19 '11 at 12:40 I want to remove 2 Sharp edged circles ... 2 Sharp edged circles will display only if we use "product labels" ... I am using a ArrayList of struc Osto. http://ecoflashapps.com/cannot-modify/cannot-modify-the-result-of-an-unboxing-conversion-c.html I made a mistake: I mean, so UNboxing is just kind of casting? –Lojol Jan 19 '11 at 11:57 @Lojol: Yes, the same casting syntax is used for both

I think the following should work: private List Shortord = new List(); ... Boxing does not come into play when casting a reference type, unless you cast a reference type back to a value type (see above.) Example: string s = (string)myObjectThatCanBeConvertedToAString; Or, you Warning: Cannot Modify Header Information (With A Twist) Cannot Modify Header Form Resubmits Data On Refresh Recently added “not well-formed” error in Firefox when loading JSON file with XMLHttpRequest How to The first type of element is a class, the other type of element is a struct.

Sharp Architecture; Accessing Validation Results Breeze.Sharp Mvvm Trying To Get Results From The Database - Error Svg Shape Not Sharp On Non-Retina, But Sharp On Retina Conversion Of A Decimal To Thursday, October 01, 2009 3:57 PM Microsoft is conducting an online survey to understand your opinion of the Msdn Web site. Thank you for your reply! Alternatively, just use a class instead of a struct.

I want to Modify my whois information, so that it displays my information instead, and doesn't link to santrex or santrex's ISP at all. ... The final conversion you've shown is a reference conversion - it maintains representational identity, so the values of X and R are both references to the same object. And since a nullable that has the value null boxes to the reference null the information about its type is lost during the boxing. That's why the line in which you do that compiles.

int myInt=1; object x=myInt;//box int unbox1=(int)x;//successful unbox int? Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Answered by: Cannot modify the result of an unboxing conversion Archived Forums V Comment is Empty! I always try to Keep it Sharp & simple.

Login | Register Cannot Modify Files With Samba And Curlftpfs However it is not possible to Modify files via SAMBA ... up vote 1 down vote favorite 2 struct Point { public int x; public int y; } void Main() { Point p; p.x = 1; p.y = 1; Object o = Regards Carl Johansson . From the context of your reply I suppose it means that value type variables such as int and struct are inherently mutable, i.e.

It appears to me that any object within a list can not be directly modified as a variable. Not the answer you're looking for? I understand, if there are different types of objects in the list go for "ArrayList", if all the elements are of similar type go for generic "List". decimal dcm = 8224055000.0000000000m; // dcm = 8224055000double dbl = Convert.ToDouble(dcm); // dbl = 8224055000.000001decimal dcm2 = Convert.ToDecimal(dbl); // dcm2 = 8224055000double dbl2 = Convert.ToDouble(dcm2); // dbl2 = 8224055000.0decimal deltaDcm =