C#

Cada uno es artifice de su ventura
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<br />
			byte[] buffer = new byte[1024];<br />
			int len;<br />
<br />
			//Read in a maximum of 1 kilobyte from the file at a time, while there are more than 0 bytes left.<br />
			while((len = fsInput.Read(buffer, 0, buffer.Length)) != 0)<br />
			{<br />
				//Write the contents of the current buffer to the crypt stream<br />
				cryptostream.Write(buffer, 0, len);<br />
			}<br />
			cryptostream.Close();<br />
			fsInput.Close();<br />
			fsEncrypted.Close();<br />

<br />
			//Print the contents of the decrypted file.<br />
			byte[] buffer = new byte[1024];<br />
			int len;<br />
			FileStream fsDecrypted = new FileStream(sOutputFilename, FileMode.Create);<br />
			//Read in a maximum of 1 kilobyte at a time, while there are more than 0 bytes left<br />
			while((len = cryptostreamDecr.Read(buffer, 0, buffer.Length)) != 0)<br />
			{<br />
				//Write the contents of the decrypted buffer to the output file stream<br />
				fsDecrypted.Write(buffer, 0, len);<br />
			}<br />

override void OnLoad(EventArgs e)
{
  base.OnLoad(e);
  //now call MsgBox.Show() :P
}

<br />
private void Insert2XML(string strXmlFilePath, string PersonName, int ID, string Notes)<br />
{<br />
XmlDocument doc = new XmlDocument();<br />
doc.Load(strXmlFilePath);<br />
XmlNode root = doc.DocumentElement;<br />
<br />
XmlNode Person = doc.CreateElement("Person");<br />
Person.SetAttribute("Name", PersonName);<br />
Person.SetAttribute("ID", ID.ToString());<br />
Person.InnerText = Notes;<br />
root.AppendChild(Person);<br />
<br />
// Save the document to a file and auto-indent the output.<br />
XmlTextWriter writer = new XmlTextWriter(strXmlFilePath, null);<br />
writer.Formatting = Formatting.Indented;<br />
writer.Indentation = 4;<br />
doc.Save(writer);<br />
writer.Close();<br />
}<br />
<br />
private string GetPersonID(string strXmlFilePath, string PersonName)<br />
{<br />
XmlDocument doc = new XmlDocument();<br />
doc.Load(strXmlFilePath);<br />
XmlNode root = doc.DocumentElement;<br />
<br />
XmlNode SearchNode = root.SelectSingleNode("//*[@Name='" + PersonName + "']");<br />
if (SearchNode != null)<br />
{<br />
return SearchNode.Attributes["ID"].Value;<br />
}<br />
else<br />
{return "Not Found!"}<br />
}<br />