Hi. I start to write C# programs just for joke, when I try to find a better way to have an alternative to calculate the weight of the mixed material I use at work, instead an Excel worksheet. When the management see what I have created, they asked me to create an scheduler for the work orders, starting from an Excel file. So I have created a program that calculate the working days needed for the order completion, if the time needed is enough than the warehouse date and color the rows of a datagridview (red if the order is expired, yellow if is borderline and green if the time is enough) and allow to show the scheduling of the orders in secondary forms for each molding press starting by the original assignment or by material selection. ©