Utility doest exist in c#

Question

hello, how does comes to utility ? in which namespace it has? i dnt have anything about utility

Amit Gupta · Answer

Utility is your class file, Make sure that utility class file is present in your solution explorer, it might not be present there.

Mounnad Mohamed · Answer

this is not a default .NET library you should implement Utility class : example of implementation : public class Utiliy { public static byte [] ImageToByteArray( string imageName) { //Initialize a file stream to read the image file FileStream fs = new FileStream(imageName, FileMode.Open, FileAccess.Read); //Initialize a byte array with size of stream byte [] imgByteArr = new byte [fs.Length]; //Read data from the file stream and put into the byte array fs.Read(imgByteArr, 0, Convert.ToInt32(fs.Length)); //Close a file stream fs.Close(); return imgByteArr; } }

sonal malhotra · Answer

public IEnumerable GetAllProductsByCategory() { var allProduct = db.Products.ToList(); IEnumerable allProductByCategory = from p in allProduct group p by p.Category into sl select new ProductCategory() { Category = sl.Key, Products = sl.Select(x => new Product { Id = x.Id, Name = x.Name, Description = x.Description, Quantity = x.Quantity, SellerName = x.SellerName, ImageName = x.ImageName, ImageFile = Utility.ImageToByteArray(x.ImageName), UnitPrice = x.UnitPrice, Category = x.Category, }).ToList() }; return allProductByCategory; }