//to multiple cells
public FormulaBarPage AddValueToColumn(string columnName, string value)
{
List <IWebElement> allColumns = MarksheetGridHelper.FindAllColumns();
IWebElement column = allColumns.FirstOrDefault(col => col.Text == columnName);
string columnNo = column != null?column.GetAttribute("column") : "1";
MarksheetGridHelper.FindColumnByColumnNumber(columnNo).Click();
Actions action = new Actions(WebContext.WebDriver);
_formulaBarElement.Click();
_formulaBarElement.Clear();
_formulaBarElement.SendKeys(value);
action.SendKeys(Keys.Enter).Perform();
return(this);
}
