Button b = (Button)sender; tblProduct tp = (tblProduct)b.Tag; string product = tp.productName; lbProductsToBuy.Text = tp.ToString(); products.Add(tp); total += (decimal)tp.productPrice; var duplicates = products.GroupBy(i => i.productName) .Where(x => x.Count() > 0) .Select(val => val.Key); foreach (var item in duplicates) { } and listbox format is try { string ProductName = ((tblProduct)e.ListItem).productName; string Price = "Rs: " + String.Format("{0:}", ((tblProduct)e.ListItem).productPrice); string ProductNamePadded = ProductName.PadRight(33); e.Value = ProductNamePadded+Price; } catch { }
duplicates.Select(c => { c.value = txtbox.Text; return c; }).ToList()
var
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