How to get rounded Off value in C#?

Quote:

Look at Math.Round(decimal)[^] or the overload which takes a MidpointRounding argument.[^]

Of course, you'll need to parse and format the value to get it from/to text. If this is input entered by the user, you should probably use decimal.TryParse, using the return value to determine whether or not the input was valid.

C#

string text = "19500.55";
decimal value;
if (decimal.TryParse(text, out value))
{
    value = Math.Round(value);
    text = value.ToString();
    // Do something with the new text value
}
else
{
    // Tell the user their input is invalid
}

double a = 5.50;
string[] str= a.ToString().Split('.');
double num1= Convert.ToDouble("0."+str[1]);
double res;
if (num1 < 0.51)
{
     res= Math.Floor(a);
}
else {
    res = Math.Round(a); 
}

double originalVal = 51.25;  // value before round off

double roudedVal = Math.Round(originalVal, MidpointRounding.AwayFromZero); // rounded value

double GetVal = 0;  // to know rounded value

GetVal -= originalVal - roudedVal;

GetVal = Math.Round(GetVal, 2);  // to again roundup value with just 2 decimal precision, if it show like 0.47999909 to show up as 0.48

MessageBox.Show(GetVal.ToString());

// output will be -25