Truncates the decimal places of given value to match desired decimal count.

TruncateDecimals.cs

/// <summary>Truncates the decimal places of <paramref name="value"/> to match <paramref name="decimalCount"/>.</summary>
/// <example> 1.14f.TruncateDecimals(1) --> 1.1f </example>
public static float TruncateDecimals(this float value, int decimalCount)
{
    var rate = Math.Pow(10, decimalCount);
    return (float) (Math.Truncate(value * rate) / rate);

    // This below uses the rounding option, which is not precise:
    //float rounded = (float)Math.Round(value, decimalCount, MidpointRounding.AwayFromZero);
    //return rounded;
}

/// <summary>Truncates the decimal places of <paramref name="value"/> to match <paramref name="decimalCount"/>. </summary>
/// <example> 1.14d.TruncateDecimals(1) --> 1.1d </example>
public static double TruncateDecimals(this double value, int decimalCount)
{
    var rate = Math.Pow(10, decimalCount);
    return Math.Truncate(value * rate) / rate;

    // This below uses the rounding option, which is not precise:
    //double rounded = Math.Round(value, decimalCount, MidpointRounding.AwayFromZero);
    //return rounded;
}