c# - Eliminate special characters from CSV with C#

Question

I am getting data from a CSV file through my Web Api with this code

private List<Item> items = new List<Item>();

        public ItemRepository()
        {
            string filename = HttpRuntime.AppDomainAppPath + "App_Data\\items.csv";

            var lines = File.ReadAllLines(filename).Skip(1).ToList();

            for (int i = 0; i < lines.Count; i++)
            {
                var line = lines[i];

                var columns = line.Split('$');

                //get rid of newline characters in the middle of data lines
                while (columns.Length < 9)
                {
                    i += 1;
                    line = line.Replace("\n", " ") + lines[i];
                    columns = line.Split('$');
                }

                //Remove Starting and Trailing open quotes from fields
                columns = columns.Select(c => { if (string.IsNullOrEmpty(c) == false) { return c.Substring(1, c.Length - 2); } return string.Empty; }).ToArray();


                var temp = columns[5].Split('|', '>');
                items.Add(new Item()
                {
                    Id = int.Parse(columns[0]),
                    Name = temp[0],
                    Description = columns[2],

                    Photo = columns[7]



                });
            }
        }

But the CSV file returned data with special characters instead of an apostrophe.

For example in the CSV file the are values such as There’s which should be "There's" or "John’s" which should be "John's". This ’ is there instead of an apostrophe.

How do I get rid of this to just show my apostrophe. This kind of data is being returned in Name = temp[0], Description = columns[2],

Answer 1

您可以使用 HttpUtility.HtmlDecode 来转换字符。这是一个例子：

var withEncodedChars = "For example in the CSV file the are values such as There’s which should be There's or John’s which should be John's. This ’ is there instead of an apostrophe.";

Console.WriteLine(HttpUtility.HtmlDecode(withEncodedChars));

如果您在控制台应用程序中运行它，它会输出：

例如，在 CSV 文件中的值是 There's 应该是 There's 或 John's 应该是 John's。这个 ' 在那里而不是撇号。