C#

//add the event handler to the textBoxes, 
this.textBox1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBoxesKeyPress);

this.textBox2.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBoxesKeyPress);

this.textBox3.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBoxesKeyPress);

this.textBox4.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBoxesKeyPress);

//
//

private void TextBoxesKeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) 
{
	// do the common processing here i.e. applicable to all the textBoxes
	//.........................
	//
	//processing for specific textBox
	//
	if(sender == this.textBox1)
	{
		//do processing relevent to textBox1 only
		//.......................
	}
	else if(sender == this.textBox2)
	{
		//do processing relevent to textBox1 only
		//............................
	}
	else if(sender == this.textBox3)
	{
			//do processing relevent to textBox3 only
			//............................
	}
	else if(sender == this.textBox4)
	{
		//do processing relevent to textBox4 only
		//............................
	}
	

}

using System;
using System.Xml;

class Class1
{
	static void Main(string[] args)
	{
		string xmlpiece = @"<Config>
									<ReportServer>0</ReportServer>
									<LastReportDate>20041214</LastReportDate>
								</Config>
								";
		XmlDocument doc = new XmlDocument();
		doc.LoadXml(xmlpiece);
		XmlNode node = doc.SelectSingleNode("/Config/ReportServer");
		node.InnerText = "1";
		Console.WriteLine(doc.OuterXml);
	}
}

#region Using directives<br />
<br />
using System;<br />
using System.Collections.Generic;<br />
using System.Reflection;<br />
using System.Text;<br />
<br />
#endregion<br />
<br />
namespace ConsoleApplication1<br />
{<br />
    class Program<br />
    {<br />
        static void Main(string[] args)<br />
        {<br />
            Type t = typeof(Program);<br />
            object [] argsg = new object [] {100, 184};<br />
            t.InvokeMember("ComputeSum", BindingFlags.Default | BindingFlags.InvokeMethod<br />
                | BindingFlags.Static, null, null, argsg);<br />
        }<br />
        public static void ComputeSum(int num1, int num2)<br />
        {<br />
            Console.WriteLine(num1 + num2);<br />
            Console.ReadKey();<br />
            return;<br />
        }<br />
    }<br />
}<br />

<br />
ListViewItem item = new ListViewItem("Text that will be displayed in the first column");<br />
item.SubItem.add("Text that will be displayed in the second column");<br />

lstServerExplorer.Items.Clear();<br />
			foreach( XmlNode node in xn)<br />
			{<br />
				strProvider = node.ChildNodes[0].InnerText.ToString();<br />
				strServer = node.ChildNodes[1].InnerText.ToString();<br />
				strDatabase = node.ChildNodes[2].InnerText.ToString();<br />
				strUser = node.ChildNodes[3].InnerText.ToString();<br />
				strPassword = node.ChildNodes[4].InnerText.ToString();<br />
				itm = new ConnectionItem(strProvider, strServer, strDatabase, strUser, strPassword);<br />
				lstServerExplorer.Items.Add(itm);<br />
			}

<br />
string s = "SOMETHING";<br />
s = s.Substring(0,1).ToUpper() + s.Substring(1, s.Length - 1).ToLower();<br />