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This Expression Cannot Be Used As An Assignment Target C#


Having the object type spec referencing the package spec directly resulted in an odd circular reference later on, when I was adding a packaged function that returned a collection type based Browse other questions tagged c# or ask your own question. Not the answer you're looking for? This entry was posted in Uncategorized. http://rinfix.com/cannot-be/type-of-conditional-expression-cannot-be-determined-because.html

If I try to write to its attribute I get a compilation error: MEMBER FUNCTION midnight RETURN date_obj IS BEGIN dt := trunc(dt); -- write to itself Write clear concise questions with the relevant information and details instead. –asawyer May 25 '12 at 19:16 Edited. Proudly powered by WordPress. If I want to reproduce this, it's a lot easier for me to do so without downloading iTextSharp - so you should include code which doesn't need it. https://msdn.microsoft.com/en-us/library/76435b93.aspx

Vb.net Expression Is A Value And Therefore Cannot Be The Target Of An Assignment

What do I do? Someone peeled an American flag sticker off of my truck. Advanced Topic: Delegate Instantiation in C# 1.0 Earlier versions of the compiler require instantiation of the delegate demonstrated in Listing 12.9. so why can't i use ref or out param.

The name of the method is not significant. How does Gandalf end up on the roof of Isengard? Polyglot Anagrams Cops' Thread Do we know Ford's old name? Within the BubbleSort() method you then use the instance of the ComparisonHandler, called comparisonMethod, inside the conditional expression.

not using Reflection every time); I know property name and type. Structure Expression Is A Value And Therefore Cannot Be The Target Of An Assignment UPDATE After having read about ConcurrentBag, I think I am beginning to understand what you have in mind. This keyword causes the compiler to generate a class similar to the one shown in Listing 12.4. http://stackoverflow.com/questions/12821323/how-to-assign-properties-generically-using-expression-assign-selector-with-targe Delegate Data Types To increase the flexibility (and reduce code duplication), you can pass in the comparison method as a parameter to the BubbleSort() method.

Would the members of an online imageboard (or any community) be able to build a post-apocalytic society upon their reputation? Similar examples could apply to properties and array elements.Indirect Access. This chapter is from the book  This chapter is from the book Essential C# 4.0, 3rd Edition Learn More Buy This chapter is from the book This chapter is from Nijboer 8-Nov-10 7:13am I formatted it to sql but the question itself isn't completely clear, also in other revisions so maybe you could update it to make it more

  1. Indirect access through a value type can also generate this error.
  2. What happens when I run it?
  3. So what’s the difference between a member function and a static function?
  4. This is the code I have so far: var type1 = new Type1(); var type2 = new Type2(); ...

Structure Expression Is A Value And Therefore Cannot Be The Target Of An Assignment

Build me a brick wall! see this here Not the answer you're looking for? Vb.net Expression Is A Value And Therefore Cannot Be The Target Of An Assignment Let's work to help developers, not make them feel stupid. In the code below, if AddContent changes the value of doc, it will be that later value which is used in the Dispose call.

In the case of a static method, Target corresponds to the type itself. this contact form How do unlimited vacation days work? When does TNG take place in relation to DS9? Declaring a ComparisonHandler-Compatible Method public delegate bool ComparisonHandler ( int first, int second); __________________________________________________________ __________________________________________________________ class DelegateSample { public static void BubbleSort( int[] items, ComparisonHandler comparisonMethod) { // ... } public

This piece of code cannot compile (even R# doesn't detect any error) : using System; using System.Linq; class Program {    static void Main(string[] args) {       var query = from i in new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }                   let fct = (int x) => (x - 5) * (x - 5)                   where fct(i) > fct(i - 1)                   select i;       foreach (var i in query) { Console.WriteLine(i); }    } } The C# compiler error, provoked by fct, I can of course provide it explicitly, and make the mode IN OUT. I can’t have it both ways. http://rinfix.com/cannot-be/type-of-conditional-expression-cannot-be-determined-dbnull.html more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

How do I deal with my current employer not respecting my decision to leave? However, we may be able to invent some plausible work-arounds or ways to simulate some of these features. c# share|improve this question edited Dec 18 '13 at 11:26 asked Dec 18 '13 at 10:34 joshua 1,67311840 Please show a short but complete program demonstrating the problem. –Jon

In the context of this quote, how many 'chips/sockets' do personal computers contain?

Optional Password I have read and agree to the Terms of Service and Privacy Policy Please subscribe me to the CodeProject newsletters Submit your solution! by Steven Feuerstein on 1 Mar 2010 0 comments View More Object Types and Member Subprograms Follow dclamage_468 / 5.13.2013 at 5:24pm I remember when I first started getting used to Sign in using Search within: Articles Quick Answers Messages Use my saved content filters home articles Chapters and Sections> Search Latest Articles Latest Tips/Tricks Top Articles Beginner Articles Technical Blogs Posting/Update At one shop, the director angrily called me into his office, demanding to know why I had “wasted” an entire week building (and documenting) a server application (written in Pro*/C and

See more: Oracle I have a function with following query but it returns above error. Therefore, throughout the remainder of the book, I will show only the C# 2.0 and later syntax. (This will cause some of the remaining code not to compile on version 1.0 int nextCode = teacherManagerObj.GetCode(); //shows error "This expression cannot be used as an assignment target" Convert.ToInt32(codeTextBox.Text) = nextCode; c# share|improve this question edited May 12 '14 at 17:30 gunr2171 5,693103162 asked Check This Out Listing 12.10 shows a full listing that demonstrates alphabetical sorting, and Output 12.1 shows the results.

ALL RIGHTS RESERVED. But why do you have to use the ref keyword anyway? How can I claim compensation? myObject) cannot be assigned a new value inside the foreach.

Polyglot Anagrams Cops' Thread Possible repercussions from assault between coworkers outside the office Do the Leaves of Lórien brooches have any special significance or attributes? Listing 12.5 shows the syntax for declaring a delegate data type. The purpose of the MulticastDelegate class is the topic of the next chapter. I strongly suspect they are irrelevant to the question, and that you just need some IDisposable implementation - so use one within the BCL, and add an appropriate using directive. –Jon

The whole point to object-oriented programming is to marry the code directly (or as close to) the data. In addition to MethodInfo, a delegate also needs the instance of the object containing the method to invoke. Listing 12.6. My first solution above runs into race conditions in multithreaded scenarios (the very and only reson for using a ConcurrentBag).

asked 2 years ago viewed 417 times active 2 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Visit Chat Linked 93 Difference between Convert.ToString() and .ToString() Related 3843What If you wanted to sort them alphabetically, randomize the collection, or order them via some other criterion, it would not take long before the number of BubbleSort() methods and corresponding SortType To quote from the ECMA specification, 15.8.4, emphasis mine: The type and identifier of a foreach statement declare the iteration variable of the statement.