NAVIGATION DANS UN DATASET ET AFFICHAGE DANS TEXTBOX

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace Datas
{
	/// <summary>
	/// Description résumée de [!output SAFE_CLASS_NAME].
	/// </summary>
	public class WebForm1 : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Data.SqlClient.SqlCommand sqlSelectCommand1;
		protected System.Data.SqlClient.SqlCommand sqlInsertCommand1;
		protected System.Data.SqlClient.SqlCommand sqlUpdateCommand1;
		protected System.Data.SqlClient.SqlCommand sqlDeleteCommand1;
		protected System.Data.SqlClient.SqlConnection sqlConnection1;
		protected System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;
		protected System.Web.UI.WebControls.Button Button1;
		protected Datas.dsCategories dsCategories1;
		private static int ix=0;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// Placer ici le code utilisateur pour initialiser la page
			sqlDataAdapter1.Fill(dsCategories1);
//			//TextBox1.DataBind();//inutile
//			//TextBox2.DataBind();//inutile
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN : Cet appel est requis par le Concepteur Web Form ASP.NET.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Méthode requise pour la prise en charge du concepteur - ne modifiez pas
		/// le contenu de cette méthode avec l'éditeur de code.
		/// </summary>
		private void InitializeComponent()
		{    
			this.sqlSelectCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlInsertCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlUpdateCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlDeleteCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlConnection1 = new System.Data.SqlClient.SqlConnection();
			this.sqlDataAdapter1 = new System.Data.SqlClient.SqlDataAdapter();
			this.dsCategories1 = new Datas.dsCategories();
			((System.ComponentModel.ISupportInitialize)(this.dsCategories1)).BeginInit();
			// 
			// sqlSelectCommand1
			// 
			this.sqlSelectCommand1.CommandText = "SELECT CategoryID, CategoryName, Description, Picture FROM Categories";
			this.sqlSelectCommand1.Connection = this.sqlConnection1;
			// 
			// sqlInsertCommand1
			// 
			this.sqlInsertCommand1.CommandText = "INSERT INTO Categories(CategoryName, Description, Picture) VALUES (@CategoryName," +
				" @Description, @Picture); SELECT CategoryID, CategoryName, Description, Picture " +
				"FROM Categories WHERE (CategoryID = @@IDENTITY)";
			this.sqlInsertCommand1.Connection = this.sqlConnection1;
			this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@CategoryName", System.Data.SqlDbType.NVarChar, 15, "CategoryName"));
			this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Description", System.Data.SqlDbType.NVarChar, 1073741823, "Description"));
			this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Picture", System.Data.SqlDbType.VarBinary, 2147483647, "Picture"));
			// 
			// sqlUpdateCommand1
			// 
			this.sqlUpdateCommand1.CommandText = @"UPDATE Categories SET CategoryName = @CategoryName, Description = @Description, Picture = @Picture WHERE (CategoryID = @Original_CategoryID) AND (CategoryName = @Original_CategoryName); SELECT CategoryID, CategoryName, Description, Picture FROM Categories WHERE (CategoryID = @CategoryID)";
			this.sqlUpdateCommand1.Connection = this.sqlConnection1;
			this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@CategoryName", System.Data.SqlDbType.NVarChar, 15, "CategoryName"));
			this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Description", System.Data.SqlDbType.NVarChar, 1073741823, "Description"));
			this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Picture", System.Data.SqlDbType.VarBinary, 2147483647, "Picture"));
			this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_CategoryID", System.Data.SqlDbType.Int, 4, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "CategoryID", System.Data.DataRowVersion.Original, null));
			this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_CategoryName", System.Data.SqlDbType.NVarChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "CategoryName", System.Data.DataRowVersion.Original, null));
			this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@CategoryID", System.Data.SqlDbType.Int, 4, "CategoryID"));
			// 
			// sqlDeleteCommand1
			// 
			this.sqlDeleteCommand1.CommandText = "DELETE FROM Categories WHERE (CategoryID = @Original_CategoryID) AND (CategoryNam" +
				"e = @Original_CategoryName)";
			this.sqlDeleteCommand1.Connection = this.sqlConnection1;
			this.sqlDeleteCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_CategoryID", System.Data.SqlDbType.Int, 4, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "CategoryID", System.Data.DataRowVersion.Original, null));
			this.sqlDeleteCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_CategoryName", System.Data.SqlDbType.NVarChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "CategoryName", System.Data.DataRowVersion.Original, null));
			// 
			// sqlConnection1
			// 
			this.sqlConnection1.ConnectionString = "data source=VIDAL;initial catalog=Northwind;integrated security=SSPI;persist secu" +
				"rity info=False;workstation id=VIDAL;packet size=4096";
			// 
			// sqlDataAdapter1
			// 
			this.sqlDataAdapter1.DeleteCommand = this.sqlDeleteCommand1;
			this.sqlDataAdapter1.InsertCommand = this.sqlInsertCommand1;
			this.sqlDataAdapter1.SelectCommand = this.sqlSelectCommand1;
			this.sqlDataAdapter1.TableMappings.AddRange(new System.Data.Common.DataTableMapping[] {
																									  new System.Data.Common.DataTableMapping("Table", "Categories", new System.Data.Common.DataColumnMapping[] {
																																																					new System.Data.Common.DataColumnMapping("CategoryID", "CategoryID"),
																																																					new System.Data.Common.DataColumnMapping("CategoryName", "CategoryName"),
																																																					new System.Data.Common.DataColumnMapping("Description", "Description"),
																																																					new System.Data.Common.DataColumnMapping("Picture", "Picture")})});
			this.sqlDataAdapter1.UpdateCommand = this.sqlUpdateCommand1;
			// 
			// dsCategories1
			// 
			this.dsCategories1.DataSetName = "dsCategories";
			this.dsCategories1.Locale = new System.Globalization.CultureInfo("fr-FR");
			this.dsCategories1.Namespace = "http://www.tempuri.org/dsCategories.xsd";
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Load += new System.EventHandler(this.Page_Load);
			((System.ComponentModel.ISupportInitialize)(this.dsCategories1)).EndInit();

		}
		#endregion

		private void Button1_Click(object sender, System.EventArgs e)
		{
			TextBox1.Text = dsCategories1.Tables["Categories"].Rows[ix]["CategoryID"].ToString();
			TextBox2.Text = dsCategories1.Tables["Categories"].Rows[ix]["CategoryName"].ToString();
			ix++;
		}
	}
}