This question already has answers here:
How do I parse a string with a decimal point to a double?
(19 answers)
Closed 5 years ago.
I have a string array which contains 4 elements. Which looks like this.
How ever, when trying to do this:
Vector newVector = new Vector(
(float)Convert.ToDouble(words[1]),
(float)Convert.ToDouble(words[2]));
I get the following error:
'Input string was not in a correct format.'
And that is because it's because the value uses a '.' but if I manually change the array to use a ',' it works.
How can I easiest replace all '.' with ','.
Use
//(float)Convert.ToDouble(words[1]),
(float)Convert.ToDouble(words[1], CultureInfo.InvariantCulture),
Try this...
Vector newVector = new Vector(
(float)Convert.ToDouble(words[1], CultureInfo.GetCultureInfo("en-US").NumberFormat),
(float)Convert.ToDouble(words[2], CultureInfo.GetCultureInfo("en-US").NumberFormat));
Related
This question already has answers here:
How remove decimal part from string?
(3 answers)
Closed 1 year ago.
I want to remove decimal point from string.
I try with this code but not work for me:
string wSpeed = Math.Round(weatherBindingData.WeatherDataCurrent.Wind.Speed) * 3.6 + "km/h";
WindSpeed.Text = wSpeed;
I want to remove the decimal point, but with this code I receive a values with decimal point.
How is the correct way to remove the decimal point?
Use formatting:
string wSpeed = $"{Math.Round(weatherBindingData.WeatherDataCurrent.Wind.Speed) * 3.6:0}km/h";
Or what you more likely want:
string wSpeed = $"{weatherBindingData.WeatherDataCurrent.Wind.Speed * 3.6:0}km/h";
This question already has answers here:
Add zero-padding to a string
(6 answers)
Closed 4 years ago.
I have a very simple Question to ask.
I have a string like:
string str="89";
I want to format my string as follow :
str="000089";
How can i achieve this?
Assuming the 89 is actually coming from another variable, then simply:
int i = 89;
var str = i.ToString("000000");
Here the 0 in the ToString() is a "zero placeholder" as a custom format specifier; see https://learn.microsoft.com/en-us/dotnet/standard/base-types/custom-numeric-format-strings
If you have a string (not int) as the initial value and thus you want to pad it up to length 6, try PadLeft:
string str = "89";
str = str.PadLeft(6, '0');
If you want the input to be a string you'll have to parse it before you output it
int.Parse(str).ToString("000000")
This question already has answers here:
Convert a number into the hex value in .NET
(2 answers)
Closed 6 years ago.
I've got a simple question i have got a long value presented in this way
long value = 0x001f0347
Now is there's a way to convert it to string that looks the same:
string value = "0x001f0347";
I have tried some converters but no luck.
Try formatting ("x8" format string - 8 hexadecimal digits):
long value = 0x001f0347;
string result = "0x" + value.ToString("x8");
If you prefer Convert then convert using toBase == 16 and pad left up to 8 symbols
string result = "0x" + Convert.ToString(value, 16).PadLeft(8, '0');
This question already has answers here:
How to get the last five characters of a string using Substring() in C#?
(12 answers)
Closed 8 years ago.
I have a string variable like test10015, i want to get just the 4 digits 1001,
what is the best way to do it?
i"m working in asp.net c#
With Linq:
var expected = str.Skip(4).Take(4);
Without Linq:
var expected = str.Substring(4,4);
Select the first four digits in your string:
string str = "test10015";
string strNum = new string(str.Where(c => char.IsDigit(c)).Take(4).ToArray());
You can use String.Substring Method (Int32, Int32). You can subtract 5 from from the length to start from your required index. Make sure the format of string remains the same.
string res = str.Substring(str.Length-5, 4);
string input = "test10015";
string result = input.Substring(4, 4);
This question already has answers here:
Can I convert a C# string value to an escaped string literal?
(16 answers)
Closed 9 years ago.
Is there a C# method like Python's repr() to get the true representation of the object? Suppose we have:
string identifier = "22\n44";
Console.WriteLine(identifier);
This would return
22
44
Is there a way to get
"22\n44"
In Python this is easy. We can just do repr("22\n44").
I thought of this question because I was trying to convert "2244" to '2244' using
var identifier = "2244";
identifier = identifier.Replace("\"", "'");
Console.WriteLine(identifier);
The output is just 2244, because double quotes are for our purpose. But in my case, I did this to get what I wanted:
identifier = string.Format("'{0}'", identifier);
because initially the database was receiving the query as IN ("2244") instead of IN ('2244') and was throwing Invalid Number error.
string identifier = "22\n44";
Console.WriteLine("\"{0}\"", identifier.Replace("\n", #"\n"));