Round decimal value using Math.Round function in ASP.Net MVC

Hi mahesh213,

Use Math.Round function.

Code

public JsonResult GetNoOfMonths(string psd, string ped)
{
    DateTime dtPSD = Convert.ToDateTime(psd);
    DateTime dtPED = Convert.ToDateTime(ped);
    int days = (dtPED - dtPSD).Days;
    double month = (days + 1) / 30.0;
    double d = Math.Round((Math.Floor(month * 100) / 100), 2, MidpointRounding.AwayFromZero);
    return Json(d, JsonRequestBehavior.AllowGet);
}

Check below code.

HTML

 <asp:TextBox ID="txtNumber" runat="server" AutoPostBack="true" OnTextChanged="OnTextChanged" />

C#

protected void OnTextChanged(object sender, EventArgs e)
{
    decimal num = Convert.ToDecimal(txtNumber.Text);
    txtNumber.Text = Math.Round(num, 2, MidpointRounding.AwayFromZero).ToString();
}

Screenshot