Removes invalid file name characters from the specified string.

   
 

#region License
// (c) Intergen.
// This source is subject to the Microsoft Public License (Ms-PL).
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
// All other rights reserved.
#endregion

using System;
using System.Text;
using System.IO;
using System.Web;
using System.Web.Hosting;

namespace Utilities.IO
{
  public class FileUtils
  {
    /// <summary>
    /// Removes invalid file name characters from the specified string.
    /// </summary>
    /// <param name="s">The filename string.</param>
    /// <returns></returns>
    public static string ToValidFileName(string s)
    {
      return ToValidFileName(s, string.Empty, null);
    }

    public static string ToValidFileName(string s, string invalidReplacement)
    {
      return ToValidFileName(s, invalidReplacement, null);
    }

    public static string ToValidFileName(string s, string invalidReplacement, string spaceReplacement)
    {
      StringBuilder sb = new StringBuilder(s);

      foreach (char invalidFileNameChar in Path.GetInvalidFileNameChars())
      {
        if (invalidReplacement != null)
          sb.Replace(invalidFileNameChar.ToString(), invalidReplacement);
      }

      if (spaceReplacement != null)
        sb.Replace(" ", spaceReplacement);

      return sb.ToString();
    }
  }
}