//include all the required namespaces
	 
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Text;
using System.Xml;

	
namespace Test
{
	public class TestDataGrid : System.Windows.Forms
	{
	  /// <summary>
	  /// Required designer variable.
	  /// </summary>	
	private System.Windows.Forms.ComboBox cmbFunctionArea;
	private DataTable				  dtblFunctionalArea;
	private DataGrid				  dgdFunctionArea;
		   
  	/// <summary>
	/// public constructor
	/// </summary>
	   public TestDataGrid()
	   {
  			//automatically generated by the VS Designer
			//creates the object of the above designer variables 
			InitializeComponent();
			PopulateGrid();	
	   }
	
	  private void PopulateGrid()
      {
		//Declare and initialize local variables used
			DataColumn dtCol = null;//Data Column variable
			string[]   arrstrFunctionalArea = null;//string array variable
			System.Windows.Forms.ComboBox cmbFunctionArea;	//combo box var			
			DataTable dtblFunctionalArea;//Data Table var
				
			//Create the combo box object and set its properties
			cmbFunctionArea			= new ComboBox();
			cmbFunctionArea.Cursor		= System.Windows.Forms.Cursors.Arrow;
			cmbFunctionArea.DropDownStyle=System.Windows.Forms.ComboBoxStyle.DropDownList;
			cmbFunctionArea.Dock		= DockStyle.Fill;
			//Event that will be fired when selected index in the combo box is changed
			cmbFunctionArea.SelectionChangeCommitted += new   EventHandlercmbFunctionArea_SelectedIndexChanged);
			
			//Create the String array object, initialize the array with the column 
			//names to be displayed
			arrstrFunctionalArea		= new string [3];
			arrstrFunctionalArea[0]		= "Functional Area";
			arrstrFunctionalArea[1]		= "Min";
			arrstrFunctionalArea[2]		= "Max";
			
			//Create the Data Table object which will then be used to hold 
			//columns and rows
			dtblFunctionalArea		= new DataTable ("FunctionArea");
			
			//Add the string array of columns to the DataColumn object 		
			for(int i=0; i< 3;i++)
			{	
				string str		= arrstrFunctionalArea[i];
				dtCol			= new DataColumn(str);
				dtCol.DataType		= System.Type.GetType("System.String");
				dtCol.DefaultValue  	= "";
				dtblFunctionalArea.Columns.Add(dtCol);			
			}
			
			//Add a Column with checkbox at last in the Grid	
			DataColumn dtcCheck    = new DataColumn("IsMandatory");//create the data          //column object with the name  
			dtcCheck.DataType      = System.Type.GetType("System.Boolean");//Set its //data Type
			dtcCheck.DefaultValue  = false;//Set the default value
			dtblFunctionalArea.Columns.Add(dtcCheck);//Add the above column to the //Data Table

			//Set the Data Grid Source as the Data Table createed above
			dgdFunctionArea.DataSource	= dtblFunctionalArea;
	
			//set style property when first time the grid loads, next time onwards it //will maintain its property
			if(!dgdFunctionArea.TableStyles.Contains("FunctionArea"))
			{
				//Create a DataGridTableStyle object	
				DataGridTableStyle dgdtblStyle	= new DataGridTableStyle();
				//Set its properties
				dgdtblStyle.MappingName		= dtblFunctionalArea.TableName;//its table name of dataset
				dgdFunctionArea.TableStyles.Add(dgdtblStyle);
				dgdtblStyle.RowHeadersVisible		= false;
				dgdtblStyle.HeaderBackColor		= Color.LightSteelBlue;
				dgdtblStyle.AllowSorting		= false;
				dgdtblStyle.HeaderBackColor		= Color.FromArgb(8,36,107);
				dgdtblStyle.RowHeadersVisible		= false;
				dgdtblStyle.HeaderForeColor		= Color.White;
				dgdtblStyle.HeaderFont			= new System.Drawing.Font("Microsoft Sans 					Serif", 9F, 									System.Drawing.FontStyle.Bold, 						System.Drawing.GraphicsUnit.Point, 						((System.Byte)(0)));
				dgdtblStyle.GridLineColor		= Color.DarkGray;
				dgdtblStyle.PreferredRowHeight		= 22;
				dgdFunctionArea.BackgroundColor		= Color.White;

				//Take the columns in a GridColumnStylesCollection object and set //the size of the 
				//individual columns	
				GridColumnStylesCollection	colStyle;
				colStyle			= dgdFunctionArea.TableStyles[0].GridColumnStyles;
				colStyle[0].Width       	= 100;
				colStyle[1].Width		= 50;
				colStyle[2].Width		= 50;
				colStyle[3].Width		= 80;								
			}

			//To add the combo box dynamically to the data grid, you have to take the // Text Box that is present (by default) in the column where u want to add //this combo box (here it is first column i.e. Functional Area).From the //tablestyles of the data grid take the grid column styles of the column //where you want to add the combo box respectively.
			DataGridTextBoxColumn dgtb	=     (DataGridTextBoxColumn)dgdFunctionArea.TableStyles[0].GridColumnStyles[0];
			//Add the combo box to the text box taken in the above step
			dgtb.TextBox.Controls.Add (cmbFunctionArea);	
		
		   //Note: After these add the code to fill the details in the grid by //establishing 
		  // connection to the server and writing necessary steps:
	}
  }//end of the class
}//end of the namespace