System.Net.Uri with urlencoded characters

.net, c#

Solution

I ran into the same problem using 2.0...

I discovered a workaround posted at this blog:

// System.UriSyntaxFlags is internal, so let's duplicate the flag privately
private const int UnEscapeDotsAndSlashes = 0x2000000;

public static void LeaveDotsAndSlashesEscaped(Uri uri)
{
    if (uri == null)
    {
        throw new ArgumentNullException("uri");
    }

    FieldInfo fieldInfo = uri.GetType().GetField("m_Syntax", BindingFlags.Instance | BindingFlags.NonPublic);
    if (fieldInfo == null)
    {
        throw new MissingFieldException("'m_Syntax' field not found");
    }
    object uriParser = fieldInfo.GetValue(uri);

    fieldInfo = typeof(UriParser).GetField("m_Flags", BindingFlags.Instance | BindingFlags.NonPublic);
    if (fieldInfo == null)
    {
        throw new MissingFieldException("'m_Flags' field not found");
    }
    object uriSyntaxFlags = fieldInfo.GetValue(uriParser);

    // Clear the flag that we don't want
    uriSyntaxFlags = (int)uriSyntaxFlags & ~UnEscapeDotsAndSlashes;

    fieldInfo.SetValue(uriParser, uriSyntaxFlags);
}

It works perfectly.

Hope this helps (better late than never!)

Problem

I need to request the following URL inside my application: ``` http://feedbooks.com/type/Crime%2FMystery/books/top ``` When I run the following code: ``` Uri myUri = new Uri("http://feedbooks.com/type/Crime%2FMystery/books/top"); ``` The `Uri` constructor decodes the `%2F` into a literal `/`, and I get a 404 error because it has changed the URL to: ``` http://feedbooks.com/type/Crime/Mystery/books/top ``` The `Uri` class has a constructor that takes a parameter `dontEscape`, but that constructor is deprecated and setting it to `true` has no effect. My first thought was to do something like: ``` Uri myUri = new Uri("http://feedbooks.com/type/Crime%252FMystery/books/top"); ``` With the hopes that it would convert `%25` into a literal `%`, but that didn't work either. Any ideas how to create a correct `Uri` object for this particular URL in .NET?

Original source