C#

minValue = 56;
maxValue = 70;

value = 55.99.

if ((long) value >= minValue && (long) value <= maxValue)
{
....
}

grid.DataSource = List<Record>;

protected void grdOutput_RowCommand(object sender, GridViewCommandEventArgs e)
   {
       int _selectedIndex = int.Parse(e.CommandArgument.ToString());
       grdOutput.Rows[_selectedIndex].BackColor = System.Drawing.Color.CornflowerBlue;
       Record record = ((List<Record>)grdOutput.DataSource)[_selectedIndex];
       grdErrors.DataSource = GetNotificationErrors(record.NotificationID);
       grdErrors.DataBind();
   }
   protected void grdOutput_RowDataBound(object sender, GridViewRowEventArgs e)
   {
       if (e.Row.RowType == DataControlRowType.DataRow)
       {
           LinkButton _rowClickButton = (LinkButton)e.Row.Cells[3].Controls[0];
           string _script = ClientScript.GetPostBackClientHyperlink(_rowClickButton, "");
           e.Row.Attributes["onclick"] = _script;
           e.Row.Cells[2].CssClass = "expandoButton";
           e.Row.Cells[2].Controls[1].Visible = true; //Controls has no contents
       }
   }
   protected void grdOutput_RowCreated(object sender, GridViewRowEventArgs e)
   {
       if (e.Row.RowType == DataControlRowType.DataRow)
       {
           Record record = (Record)e.Row.DataItem;
           if (record != null)
           {
               TableCell cell = e.Row.Cells[2];
               cell.Text = record.StatusMessage;
               cell.Controls[1].Visible = true;  //Controls has no contents
               if (record.StatusMessage.Length > 50)
               {
                   cell.Text = record.StatusMessage.Substring(0, 50);
               }
               cell.CssClass = "expandoButton";
               cell.BackColor = System.Drawing.Color.Orange;
           }

       }
   }

   protected void grdOutput_PreRender(object sender, EventArgs e)
   {
       GridView output = (GridView)sender;

       foreach (GridViewRow row in output.Rows)
       {
           row.Cells[2].Controls[1].Visible = false; //Controls has no contents
           if (row.Cells[2].Text.Length > 50)
           {
               row.Cells[2].Text = ((Record)row.DataItem).StatusMessage.Substring(0, 50);
               row.Cells[2].Controls[1].Visible = true; //Controls has no contents
           }
       }
   }<div class="signature"><div class="modified">modified on Thursday, March 18, 2010 2:25 PM</div></div>