System.Uri class truncates trailing ‘.’ characters

If I create a Uri class instance from string that has trailing full stops – ‘.’, they are truncated from the resulting Uri object.

For example in C#:

Uri test = new Uri("http://server/folder.../");
test.PathAndQuery;

returns “/folder/” instead of “/folder…/”.

Escaping “.” with “%2E” did not help.

How do I make the Uri class to keep trailing period characters?

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

You can use reflection before your calling code.

MethodInfo getSyntax = typeof(UriParser).GetMethod("GetSyntax", System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.NonPublic);
FieldInfo flagsField = typeof(UriParser).GetField("m_Flags", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
if (getSyntax != null && flagsField != null)
{
      foreach (string scheme in new[] { "http", "https" })
      {
          UriParser parser = (UriParser)getSyntax.Invoke(null, new object[] { scheme });
          if (parser != null)
          {
              int flagsValue = (int)flagsField.GetValue(parser);
              // Clear the CanonicalizeAsFilePath attribute
              if ((flagsValue & 0x1000000) != 0)
                 flagsField.SetValue(parser, flagsValue & ~0x1000000);
           }
       }
}

Uri test = new Uri("http://server/folder.../");
Console.WriteLine(test.PathAndQuery);

This has been submitted to Connect and the workaround above was posted there.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0