[VB.Net] Comment generer une page html dynamiquement ?

bonjour,
je suis en train de construire toute une page html avec des <table> <a> etc tout en programmation (le but etant d'obtenir une génération générique de menu).
Je contruit les lignes, les colonnes au fur et à mesure.
Tout fonctionne bien, sauf pour quelques elements html dont je n'ai pas trouvé l'equivalent en objet .net par programmation.
Ainsi par exemple, je n'ai pas trouvé quel objet est l'equivalent de la puce html <LI>, et quel objet est l'equivalent du retour à la ligne <BR>.

quelqu'un les connait ?

(pour etre plus claire je pose un exemple de code simplifié : )
Code:

1 2 3 4 5 6 7 8 9 10 11 Dim Table As System.Web.UI.WebControls.Table 'ma table <TABLE> Dim bgTableRow As New TableRow() 'equivalent du <TR> Dim bgTableCell As New TableCell() 'equivalent du <TD> Dim link As System.Web.UI.WebControls.HyperLink 'equivalent du <A> bgTableCell.Controls.Add(link) 'ajoute le <A> dans le <TD> 'ajouter un <BR> ici et une puce ??? bgTableRow.Controls.Add(bgTableCell) 'ajoute le <TD> dans le <TR> Table.Controls.Add(bgTableRow) 'ajoute le <TR> dans le <TABLE>
merci

Bonjour,

Voici un petit exemple de control qui sert à demander un user et un password et qui gère l'événementiel =)

l'interet est que tout est dans une classe...

Code:

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using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.Web.Security;
using AuthenticationComponent.BusinessFacade;
 
namespace AuthenticationComponent.WebUI
{
	/// <summary>
	/// Description résumée de AuthenticationControl.
	/// </summary>
	/// 
	[DefaultProperty("Text"),
	ToolboxData("<{0}:AuthenticationControl runat=server></{0}:AuthenticationControl>")]
	public class AuthenticationControl : WebControl, INamingContainer
	{
 
#region Member variables
 
		//User
		protected Label UserLabel = new Label();
		protected TextBox UserTextBox = new TextBox();
		protected RequiredFieldValidator UserRequiredFieldValidator = new RequiredFieldValidator();
		protected RegularExpressionValidator UserRegularExpressionValidator = new RegularExpressionValidator();
 
		//Password
		protected Label PasswordLabel = new Label();
		protected TextBox PasswordTextBox = new TextBox();
		protected RequiredFieldValidator PasswordRequiredFieldValidator = new RequiredFieldValidator();
		protected RegularExpressionValidator PasswordRegularExpressionValidator = new RegularExpressionValidator();
 
		//Persitent Cookie
		protected Label PersistLabel = new Label();
		protected CheckBox Persist = new CheckBox();
 
		protected ImageButton LogonButton = new ImageButton();
 
		protected Panel MismatchPanel = new Panel();
		protected Label ErrMsgLabel = new Label();
 
#endregion
 
#region Methods and Implementation
		public AuthenticationControl()
		{
			EnsureChildControls();
		}
 
		/// <summary>
		/// <para>CreateChildControls add all the control need to display in the current controls when is a composed control.</para>
		/// <seealso cref="System.Web.UI.Control.Control" />
		/// </summary>
		/// <param name="evt">An EventArgs that controls the event data.</param>
		protected override void CreateChildControls()
		{
			// Start to add all controls
			Table table;
			TableRow row;
			TableCell cell;
 
			table = new Table();
			table.CellPadding = 5;
			table.CellSpacing = 0;
			Unit unit = Unit.Percentage(100);
			table.Width = unit;
			Controls.Add(table);
			// User
			row = new TableRow();
			table.Rows.Add(row);
			Controls.Add(UserLabel);
			cell = new TableCell();
			cell.VerticalAlign = VerticalAlign.Top;
			UserLabel.Attributes.Add("key", "UserLabel");
			cell.Controls.Add(UserLabel);
			row.Cells.Add(cell);
 
			cell = new TableCell();
			cell.Controls.Add(UserTextBox);
			cell.Controls.Add(new LiteralControl("*<BR>"));
			UserTextBox.ID = "UserTextBox";
			UserTextBox.CssClass = "TextBoxStyle";
			UserRequiredFieldValidator.Display = ValidatorDisplay.Dynamic;
			UserRequiredFieldValidator.ID = "UserRequired";
			UserRequiredFieldValidator.ControlToValidate = UserTextBox.ID;
			UserRequiredFieldValidator.Attributes.Add("key", "UserRequiredFieldValidator");
			cell.Controls.Add(UserRequiredFieldValidator);
			UserRegularExpressionValidator.Display = ValidatorDisplay.Dynamic;
			UserRegularExpressionValidator.ID = "UserRegExp";
			UserRegularExpressionValidator.ValidationExpression = "[^ ]{4,40}";
			UserRegularExpressionValidator.ControlToValidate = UserTextBox.ID;
			UserRegularExpressionValidator.Text = "User must be 4-40 nonblank characters.";
			UserRegularExpressionValidator.Attributes.Add("key", "UserRegularExpressionValidator");
			cell.Controls.Add(UserRegularExpressionValidator);
			row.Cells.Add(cell);
 
			//Password
			row = new TableRow();
			table.Rows.Add(row);
			cell = new TableCell();
			cell.VerticalAlign = VerticalAlign.Top;
			PasswordLabel.Attributes.Add("key", "PasswordLabel");
			cell.Controls.Add(PasswordLabel);
			row.Cells.Add(cell);
			cell = new TableCell();
			cell.Controls.Add(PasswordTextBox);
			cell.Controls.Add(new LiteralControl("*<BR>"));
			PasswordRequiredFieldValidator.Display = ValidatorDisplay.Dynamic;
			PasswordTextBox.ID = "PasswordTextBox";
			PasswordTextBox.TextMode = TextBoxMode.Password;
			PasswordTextBox.CssClass = "TextBoxStyle";
			PasswordRequiredFieldValidator.ID = "PasswordRequired";
			PasswordRequiredFieldValidator.ControlToValidate = PasswordTextBox.ID;
			PasswordRequiredFieldValidator.Attributes.Add("key", "PasswordRequiredFieldValidator");
			cell.Controls.Add(PasswordRequiredFieldValidator);
			PasswordRegularExpressionValidator.Display = ValidatorDisplay.Dynamic;
			PasswordRegularExpressionValidator.ID = "PasswordRegExp";
			PasswordRegularExpressionValidator.ValidationExpression = "[^ ]{4,40}";
			PasswordRegularExpressionValidator.ControlToValidate = PasswordTextBox.ID;
			PasswordRegularExpressionValidator.Text = "Password must be 4-40 nonblank characters.";
			PasswordRegularExpressionValidator.Attributes.Add("key", "PasswordRegularExpressionValidator");
			cell.Controls.Add(PasswordRegularExpressionValidator);
			row.Cells.Add(cell);
 
			//Persitent
			row = new TableRow();
			table.Rows.Add(row);
			cell = new TableCell();
			PersistLabel.Attributes.Add("key", "PersistLabel");
			cell.Controls.Add(PersistLabel);
			row.Cells.Add(cell);
			cell = new TableCell();
			cell.Controls.Add(Persist);
			row.Cells.Add(cell);
 
			//Logon Button
			row = new TableRow();
			table.Rows.Add(row);
			cell = new TableCell();
			cell.HorizontalAlign = HorizontalAlign.Right;
			LogonButton.ImageUrl = "images/{0}/{1}/LogonButton.gif";
			cell.Controls.Add(LogonButton);
			row.Cells.Add(cell);
 
			//Panel error
			Controls.Add(MismatchPanel);
			table = new Table();
			table.CellPadding = 5;
			table.CellSpacing = 0;
			table.Width = unit;
			MismatchPanel.Controls.Add(table);
			row = new TableRow();
			table.Rows.Add(row);
			cell = new TableCell();
			cell.Controls.Add(ErrMsgLabel);
			row.Cells.Add(cell);
 
			LogonButton.Click += new ImageClickEventHandler(OnLogin);
		}
 
		/// <summary>
		///     Validates a logon attempt  saves off the customer account information.
		///     <param name="sender">The source of the event.</param>
		///     <param name="e">An EventArgs that contains the event data.</param>
		/// </summary>
		private void OnLogin(object sender, ImageClickEventArgs e)
		{
			MismatchPanel.Visible = false;
 
			//Validator controls make sure Email and Password exist
			if (!Page.IsValid)
			{
				return;
			}
 
			//
			// Check the User and Password combination
			//
			long party_id = 0;
			try
			{
				party_id = (new UserLoginSystem()).GetPartyByUser(UserTextBox.Text, PasswordTextBox.Text);
			}
			catch(ArgumentException aex)
			{
				ErrMsgLabel.Text = "ArgumentException : " + aex.ToString();
				MismatchPanel.Visible = true;
			}
			catch(Exception ex)
			{
				throw new Exception("Error : ",ex);
			}
			finally
			{
				if (party_id != 0)   //were they valid?
				{
					FormsAuthentication.RedirectFromLoginPage(party_id.ToString(), Persist.Checked);
				}
				else
				{
					ErrMsgLabel.Attributes.Add("key", "UserNotRegistered");
					MismatchPanel.Visible = true;
				}        
			}
		}
 
#endregion
	}
}

le code est un peu long mais tres interessant, la réponse à la question initiale semble donc

Code:

cell.Controls.Add(new LiteralControl("<BR>"))

merci !

Bonjour,

Oui c un peu long mais je me suis dis que de montrer en même temps l'approche objet à l'exemple serais assez didactique =)