Type: Posts; User: TheGreatCthulhu
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No, but a class that implements the interface can. You need to have some kind of an instance that you can then treat as an object that has the type of your interface. The way you wrote it, there is...
^Yes, that's a better, more flexible, solution.
EDIT: But be careful if you want to select only a subset of the textboxes, you'll need some way to filter them.
Well, can you post some code, and maybe compiler error messages (if there are any), so that we can see what's wrong?
P.S. When posting code, you can use the
tags to preserve formatting. (If the...
Add a private field of type List<TextBox>, e.g.:
private List<TextBox> textboxes = new List<TextBox>();
Then fill the list in the constructor or in the Load event handler, so that it holds all of...
You don't have to directly generate even or odd numbers - you can just generate some random numbers and make even or odd numbers from them.
Odd: 2*n + 1
Just make your own methods...
Well, crossover is something inspired by a process of chromosomal crossover that happens in nature; basically two chromosomes recombine by exchanging segments. The idea is adapted for genetic...
I made some changes and attached a modified version of you code - I left explanatory comments for you in there as well.
Just to make sure you understand how the coordinate system is organized: the...
Yes, WPF can support all of this really nicely.
With GDI+ (System.Drawing.Graphics) you could probably pull off some or even most of this stuff, but it would take a lot more work, and it would...
September 14th, 2015, 11:01 AM
You've made (possibly) two mistakes. First, move all instantiations of the Random class (the lines that have new Random(0)) outside of the loop. It's enough to create the object once - and you don't...
September 4th, 2015, 02:00 AM
Could you just clarify a few more points:
Is the assumption that after the highest maximum that marks the transition to meaningful data (132.2 in your case), all the following maxima will be...
September 3rd, 2015, 11:03 AM
Are you thinking of the data as if sampled from a curve with a bunch of local maxima and minima? Or is it more along the lines of what tiliavirga said?
What assumptions are you making about the...
July 19th, 2015, 09:55 AM
BTW, the reason this distinction is of certain practical importance, instead of being purely philosophical, is, for example, that you can, legitimately, use pointers (the language feature) to...
July 19th, 2015, 08:08 AM
I don't think that's the case, though! It's quite a semantics game we're playing here. :D
I was under the impression that PredicateNormative and others who were insisting on the distinction...
July 17th, 2015, 04:56 AM
I have a feeling that your assignment says that you should print it from "left to right" - check that (that's sort of where the recursion comes in - instead of just doing it in a loop).
July 14th, 2015, 02:51 AM
In addition to the above: the Template method pattern is more about defining a concrete sequence of steps for an operation/algorithm, but with the details of each step abstracted away, so that...
July 10th, 2015, 09:32 AM
Yeah - the whole point of the Composite pattern is to have an object composed out of smaller parts, but have the client code treat it the same way as any individual part (by letting the concrete...
Seems like you guys are talking about two different things here, while calling it the same name.
Value vs reference semantics is one thing - a concept that is related to the character, and the...
Sometimes, you just need to know what to look for ("northwind" in this case). Here, check these out:
MSDN: Working with Sample Databases
MSDN: How to: Install Sample Databases
Pointers points aside (heh! :) ), a few more things about the design question (downcasting in client code):
While type-casting from abstractions to concrete types in client code is not necessarily...
June 23rd, 2015, 06:54 AM
Also, after you add assembly & namespace references as described above, check you code for typos and syntax errors (there are both in the code you posted above):
PrincipleContext ctx = new...
June 11th, 2015, 02:14 AM
May I suggest to consider the text of the exercise once again and think about what it's trying to teach you - because I think that the way you are going about it is overly complicated.
To me, it...
April 16th, 2015, 09:14 AM
You seem confused about what your histogram should display. The number of calls to roll() has nothing to do with how many different numbers roll() can return. Those two things are independent. Say,...
April 14th, 2015, 04:47 PM
No, what he meant was: if you were to write some code that would insert the line breaks and save the output to a txt file, that code would have to parse the original xml file to achieve this - but...
April 14th, 2015, 12:46 PM
See this: http://stackoverflow.com/questions/4325714/wont-let-me-delete-rows-in-sql-server-2005-management-studio
Looks like your table somehow doesn't have a primary key.
Using SQL Server...
April 14th, 2015, 12:25 PM
Or, in case the user is allowed, but not required, to press enter, you can additionally handle the LostFocus event.
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