C#

public string FilterInName(string pToEncrypt){<br />
			try{<br />
				if(pToEncrypt.Length<=3){<br />
<br />
					return pToEncrypt;<br />
				}<br />
				string sKey = "alPhatab";<br />
				DESCryptoServiceProvider des = new DESCryptoServiceProvider();<br />
				//Put the string into a byte array<br />
				byte[] inputByteArray = Encoding.Default.GetBytes(pToEncrypt);<br />
				//Create the crypto objects, with the key, as passed in<br />
				des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);<br />
				des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);<br />
				MemoryStream ms = new MemoryStream();<br />
				CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(),<br />
				CryptoStreamMode.Write);<br />
				//Write the byte array into the crypto stream<br />
				//(It will end up in the memory stream)<br />
				cs.Write(inputByteArray, 0, inputByteArray.Length);<br />
				cs.FlushFinalBlock();<br />
				<br />
				//Get the data back from the memory stream, and into a string<br />
				StringBuilder ret = new StringBuilder();<br />
				foreach(byte b in ms.ToArray()){<br />
				//Format as hex<br />
				ret.AppendFormat("{0:X2}", b);<br />
				}<br />
				return ret.ToString();<br />
			}catch(Exception ){return pToEncrypt;}

MyForm mf = new MyForm();
mf.Location = new Point( 8, 8 );
mf.Size = new Size( 150, 300 );
 
Controls.Add( mf );
mf.Visible = true; // mf.Show() *should* also work

<br />
using System;<br />
using Perpetual_Settings;<br />
namespace Brazen_Mail<br />
{<br />
	/// <summary><br />
	/// Summary description for Setting.<br />
	/// </summary><br />
	public class Setting<br />
	{<br />
		public static Perpetual_Settings.PerpetualSettings test = new PerpetualSettings();<br />
		static Setting()<br />
		{<br />
			test = new PerpetualSettings();<br />
		}<br />
	}<br />
}<br />

But when running the code I get this error.

An unhandled exception of type 'System.IO.FileNotFoundException' occurred in system.windows.forms.dll

Additional information: File or assembly name Perpetual Settings, or one of its dependencies, was not found.

// in ParentForm parent
ChildForm child = new ChildForm();
child.Owner = this;
// access custom property or function in the child form
((ChildForm)child).PublicProperty = MyVal;
// show the child form

// in ChildForm child
((ParentForm)Owner).PublicProperty = MyVal;
((ParentForm)Owner).PublicFunction();