Round to 1 decimal place in C#

Round to 1 decimal place in C#

You can round a number to 1 decimal place in C# using the Math.Round method. Here's an example:

double number = 3.14159; double roundedNumber = Math.Round(number, 1);

In this example, the Math.Round method is used to round the number variable to 1 decimal place. The second argument specifies the number of decimal places to round to. The roundedNumber variable will have a value of 3.1.

You can also use the ToString method to format the number with 1 decimal place:

double number = 3.14159; string formattedNumber = number.ToString("0.0");

In this example, the number is converted to a string using the "0.0" format string, which specifies 1 decimal place. The formattedNumber variable will have a value of "3.1".

Examples

  1. "C# round to 1 decimal place"

    • Description: Learn how to round a floating-point number to one decimal place in C# using the Math.Round method.
    • Code:
      double originalValue = 12.345; double roundedValue = Math.Round(originalValue, 1);

  2. "C# round decimal to 1 place"

    • Description: Round a decimal number to one decimal place in C# using the Math.Round method for accurate decimal rounding.
    • Code:
      decimal originalValue = 78.9012m; decimal roundedValue = Math.Round(originalValue, 1);

  3. "C# round to 1 decimal place without rounding errors"

    • Description: Address potential rounding errors when rounding to one decimal place in C# using the Math.Round method with MidpointRounding.AwayFromZero.
    • Code:
      decimal originalValue = 56.789m; decimal roundedValueWithoutErrors = Math.Round(originalValue, 1, MidpointRounding.AwayFromZero);

  4. "C# custom round to 1 decimal place function"

    • Description: Implement a custom rounding function to round a number to one decimal place in C# for more control over the rounding logic.
    • Code:
      double originalValue = 34.567; double customRoundedValue = CustomRound(originalValue, 1); // Custom rounding function double CustomRound(double value, int decimalPlaces) { double multiplier = Math.Pow(10, decimalPlaces); return Math.Round(value * multiplier) / multiplier; }

  5. "C# round to 1 decimal place with extension method"

    • Description: Create an extension method for rounding numbers to one decimal place in C# for a clean and reusable solution.
    • Code:
      public static class DoubleExtensions { public static double RoundToOneDecimalPlace(this double value) { return Math.Round(value, 1); } } // Usage double originalValue = 45.6789; double roundedValue = originalValue.RoundToOneDecimalPlace();

  6. "C# round to 1 decimal place with conditional rounding"

    • Description: Implement conditional rounding to round a number to one decimal place in C# based on specific criteria using conditional statements.
    • Code:
      double originalValue = 67.891; double roundedValue = (originalValue % 0.1 == 0) ? originalValue : Math.Round(originalValue, 1);

  7. "C# round to 1 decimal place with bankers rounding"

    • Description: Explore bankers rounding when rounding to one decimal place in C# using the MidpointRounding.ToEven option with the Math.Round method.
    • Code:
      decimal originalValue = 98.765m; decimal roundedValueWithBankers = Math.Round(originalValue, 1, MidpointRounding.ToEven);

  8. "C# round to 1 decimal place in a string"

    • Description: Convert a string containing a numerical value to a rounded string with one decimal place in C# using the ToString method.
    • Code:
      string originalString = "56.789"; double originalValue = Convert.ToDouble(originalString); string roundedStringValue = originalValue.ToString("F1");

  9. "C# round float to 1 decimal place"

    • Description: Round a float variable to one decimal place in C# using the Math.Round method.
    • Code:
      float originalValue = 123.456f; float roundedValue = (float)Math.Round(originalValue, 1);

  10. "C# round to 1 decimal place with truncate"

    • Description: Explore truncation as a method for rounding to one decimal place in C# using casting.
    • Code:
      decimal originalValue = 89.0123m; decimal truncatedValue = decimal.Truncate(originalValue * 10) / 10;

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