Question

I am currently working with storing data into arrays. The program takes the information from a text files and then formats the result with product name. The issues is that if other than a number(int) is found in the starting line of the text the file breaks. Specifically at productID = Convert.ToInt16(storeData[0]);. How can I avoid breaking the program if the first character in the text file is other than an integer?

how the info looks in the text file: ProductID, Month and Sales

1 5 20.00

CODE

string[] productName = new string[100];
                string arrayLine;
                int[] count = new int[100];
                int productID = 0;
                double individualSales = 0;
                double[] totalSales = new double[100];
                double[] totalAverage = new double[100];

                productName[1] = "Cookies";
                productName[2] = "Cake";
                productName[3] = "Bread";
                productName[4] = "Soda";
                productName[5] = "Soup";
                productName[99] = "Other";                                      

                while ((arrayLine = infile.ReadLine()) != null)
                {


                    string[] storeData = arrayLine.Split(' ');

                    productID = Convert.ToInt16(storeData[0]);
                    individualSales = Convert.ToDouble(storeData[2]);

                    if (stateName[productID] != null)
                    {
                        count[productID] += 1;
                        totalSales[stateID] += individualSales;
                    }
                    else
                    {
                        count[99] += 1;
                        totalSales[99] += individualSales;
                    }


                }
                infile.Close();

Answer 1

if (!Int16.TryParse(storeData[0], out productID))
   continue;//or do something else

Int16.TryParse

as Gromer stated, I’d rather use int.TryParse (which is in fact Int32.TryParse)…