Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 7 years ago.
Improve this question
What's the equivalent of Delphi's RoundTo() in C#?
I am not very familiar with Delphi and I am aware of C#'s Math.Round() but am not sure how equivalent they are. Math.Round() has several overloads and RoundTo() has two.
The equivalent method is Math.Round. You need to use the overload which offers the functionality that you need, whatever that is.
The Delphi RoundTo function is not overloaded and is best matched with this overload of Math.Round:
public static double Round(
double value,
int digits
)
Related
Closed. This question is opinion-based. It is not currently accepting answers.
Want to improve this question? Update the question so it can be answered with facts and citations by editing this post.
Closed 5 years ago.
Improve this question
I have a function that needs to accept either a String or a String[]. I am wondering if there is an or operator (or something similar) I can use within the function definition?
I did think about declaring both parameters as optional, but I do need at least one of them to be supplied.
What would be the best way to do this?
Simple answer is no there's no "or" option for parameters but you can use an alternative.
If the types of your parameter matches you can use params keyword which will allow entering zero or more parameters of your specified type:
public void SomeMethod(params string[] parameters)
{
// here parameters can contain 0 or more elements
}
You should remember to check if parameters contains at least one element.
Try this online
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 5 years ago.
Improve this question
Will the C# function Convert.ToInt32(text) convert different words to the same int? Any links or pushes in the right direction are appreciated!
P.S.
What about anagrams?
No, Convert.ToInt32(text) will just try to parse your text to an int, like:
Convert.ToInt32("032") will return 32 as int but
Convert.ToInt32("Brian") will throw an exception.
I assume that you want to have some kind of hashing, when you say "different words to the same int".
Try GetHashCode(). It will return the same value if you call it multiple times with the same value, for example:
"Brian".GetHashCode() will always return 1635321435
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 6 years ago.
Improve this question
I've encountered sometimes code like this and I am kind of new to programming. I want to find out what's the meaning behind those objects or data type enclosed in parenthesis.
(int)
(datagridview)
(form)
If you see something like this it's called a cast. It's used to explicitly convert a data type to another data type.
double pi = 3.14159;
int my_int = (int)pi;
See this description on casting for more details.
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 8 years ago.
Improve this question
I want convert 1,2,3,4,5,6,7,8,9,10 String to Double.
I tried Convert.ToDouble(String); and Double.Parse(String); but returned 1.0
How to convert multi comma string to double?
Thanks for help.
From the looks of your question you actually have 10 numbers not 1. Use this code:
var nums = "1,2,3,4,5,6,7,8,9,10";
var digits = nums.Split(',').Select(r => Convert.ToDouble(r)).ToArray();
// the result will be an array of doubles, also this only works with .NET 3.5 or better.
Let me know if this works for you.
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 9 years ago.
Improve this question
Which method it is called on 3.ToString()?
System.Int16.ToString()
System.Int32.ToString()
System.Int64.ToString()
All integer literals in C# default to int (Int32) unless they are too big for int, in which case they become a larger data type that fits, like long(Int64).
So in this case, Int32.ToString() is called.
System.Int32.ToString() as literal integers are Int32 type