C#

<br />
using System;<br />
using System.IO;<br />
<br />
class Program<br />
{<br />
    static void Main(string[] args)<br />
    {<br />
        FileInfo fi = new FileInfo(args[0]);<br />
        BinaryReader br = new BinaryReader(fi.OpenRead());<br />
        int offset = 0;<br />
        while (br.PeekChar() != -1)  // exception thrown here<br />
        {<br />
            if (offset++ % 16 == 0)<br />
                Console.Write("\n{0:x8}:", offset);<br />
            Console.Write("{0,4:x2}", br.ReadByte());<br />
        }<br />
        Console.WriteLine();<br />
        br.Close();<br />
    }<br />
}<br />

<br />
Unhandled exception: System.ArgumentException: Cannot include the encoded character because of insufficient buffer<br />
                  Encoding 'Unicode (UTF-8)' (fallback) 'System.Text.DecoderReplacementFallback'.<br />
Argumane name: chars<br />
   Location: System.Text.Encoding.ThrowCharsOverflow()<br />
   Location: System.Text.Encoding.ThrowCharsOverflow(DecoderNLS decoder, Boolean nothingDecoded)<br />
   Location: System.Text.UTF8Encoding.GetChars(Byte* bytes, Int32 byteCount, Char* chars, Int32 charCount, DecoderNLS baseDecoder)<br />
   Location: System.Text.DecoderNLS.GetChars(Byte* bytes, Int32 byteCount, Char* chars, Int32 charCount, Boolean flush)<br />
   Location: System.Text.DecoderNLS.GetChars(Byte[] bytes, Int32 byteIndex, Int32 byteCount, Char[] chars, Int32 charIndex, Boolean flush)<br />
   Location: System.Text.DecoderNLS.GetChars(Byte[] bytes, Int32 byteIndex, Int32 byteCount, Char[] chars, Int32 charIndex)<br />
   Location: System.IO.BinaryReader.InternalReadOneChar()<br />
   Location: System.IO.BinaryReader.Read()<br />
   Location: System.IO.BinaryReader.PeekChar()<br />
   Location: Program.Main(String[] args) File D:\CSharp\ConsoleApp\Program.cs:Line 11<br />

<field name="textBox" y="3.175" x="3.17" w="62" h="9">
  <ui>
    <textBox>
      <border>
        <css style="">            </css>
      </border>
      <margin/>
    </textBox>
  </ui>
  <font face="Arial"/>
  <margin topInset="1" bottomInset="1" leftInset="1" rightInset="1"/>
  <textAlign vAlign="middle"/>
  <label reserve="25">
    <Font fontFace="Arial" size="8pt" />
    <textAlign vAlign="middle"/>
    <value>
      <text>textbox label</text>
    </value>
  </label>
</field>

            XPathNodeIterator iterator = nav.Select(@"/field");
            try
            {
                while (iterator.MoveNext())
                {
                    //Do some other stuff
                    ...
                    XPathNavigator nav2 = iterator.Current.Clone();
                    if (string.Compare(nav2.Name, "field") == 0)
                    {
                    XPathNodeIterator textBoxIterator = nav2.Select("child::*/child::textBox");

                    if (textBoxIterator.Count > 0)
                    {
                        XPathExpression exp = nav2.Compile("child::Font");
                        XPathNodeIterator it = nav2.Select(exp);

                        while (it.MoveNext())
                        {
                            XPathNavigator nav3 = it.Current.Clone();
                            string fontFace = nav3.GetAttribute("typeface", nav3.NamespaceURI);
                            string fontSize = nav3.GetAttribute("size", nav3.NamespaceURI);
                        }
                    }
                }
             }
             catch
...
}