after conversion from php to asp.net, i m not able to run the files

the code contains snippets

//CONVERSION_WARNING: Method 'explode' was converted to 'System.String.Split' which has a different behavior. Copy this link in your browser for more info: ms-its:C:\Program Files\Microsoft Corporation\PHP to ASP.NET Migration Assistant\PHPToAspNet.chm::/explode.htm
    txp = new PHP.OrderedMap(leave_from.Split("-".ToCharArray()));
    //CONVERSION_TODO: The equivalent in .NET for converting to integer may return a different value. Copy this link in your browser for more info: ms-its:C:\Program Files\Microsoft Corporation\PHP to ASP.NET Migration Assistant\PHPToAspNet.chm::/1007.htm
    t_year = PHP.TypeSupport.ToInt32(txp[2]);
    //CONVERSION_TODO: The equivalent in .NET for converting to integer may return a different value. Copy this link in your browser for more info: ms-its:C:\Program Files\Microsoft Corporation\PHP to ASP.NET Migration Assistant\PHPToAspNet.chm::/1007.htm
    t_month = PHP.TypeSupport.ToInt32(txp[1]);
    //CONVERSION_TODO: The equivalent in .NET for converting to integer may return a different value. Copy this link in your browser for more info: ms-its:C:\Program Files\Microsoft Corporation\PHP to ASP.NET Migration Assistant\PHPToAspNet.chm::/1007.htm
    t_day = PHP.TypeSupport.ToInt32(txp[0]);
    //CONVERSION_WARNING: Method 'explode' was converted to 'System.String.Split' which has a different behavior. Copy this link in your browser for more info: ms-its:C:\Program Files\Microsoft Corporation\PHP to ASP.NET Migration Assistant\PHPToAspNet.chm::/explode.htm
    txp = new PHP.OrderedMap(leave_upto.Split("-".ToCharArray()));

does all these 'class or function calls' need a library for support?

if so where can i find that library? else how can i make the code run?

pleeeeeeeeaasssseeeee help urgently.............