formwizard.aspx.cs

wrox c#高级编程

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;
using Wrox.WebModules.Accounts.Business;


namespace Wrox.WebModules.MailingLists.Web
{
	public class FormWizard : Wrox.ThePhile.Web.PhilePage
	{
		protected System.Web.UI.WebControls.Button Create;
		protected System.Web.UI.WebControls.DropDownList ListsDropDown;
		protected System.Web.UI.WebControls.CheckBox AllowUnsubscription;
		protected System.Web.UI.WebControls.CheckBox AskFirstName;
		protected System.Web.UI.WebControls.CheckBox AskLastName;
		protected System.Web.UI.WebControls.Table TableResult;
		protected System.Web.UI.WebControls.Label ResultForm;
		protected System.Web.UI.WebControls.Table TableWizard;
		protected System.Web.UI.WebControls.TextBox ResultFormHTML;
		

		protected void Page_Load(object sender, EventArgs e)
		{
			// check if the current user is allowed to administer lists/subscriptions
			if (!Context.User.Identity.IsAuthenticated || 
				!((SitePrincipal)Context.User).HasPermission((int)MailingListsPermissions.AdministerData))
			{
				// if not, redirect to the Login page
				Response.Redirect("/ThePhile/Modules/Users/Login.aspx?ShowError=true", true);
			}

			if (!Page.IsPostBack)
			{
				// load all the avaible lists in the DropDown control
				ListsDropDown.DataSource = Business.List.GetLists().Tables[0].DefaultView;
				ListsDropDown.DataBind();
			}
		}
		
		protected void Create_Click(object sender, EventArgs e)
		{
			string formHTML="";
			
			// create the subscription controls (table, textbox to type the address, submit button
			// and a hidden field to store the destination ListID value)
			formHTML += string.Format("<input type=\"hidden\" name=\"ListID\" value=\"{0}\">", ListsDropDown.SelectedItem.Value);
			formHTML += "\n<center>\n<table>";
			// add the Fist Name choice if the AskFirstName CheckBox is checked
			if (AskFirstName.Checked)
			{
				formHTML += "\n  <tr>\n    <td colspan=\"2\">";
				formHTML += "\n      <small>First Name:</small>";
				formHTML += "\n    </td>\n  </tr>";
				formHTML += "\n  <tr>\n    <td colspan=\"2\">";
				formHTML += "\n      <input type=\"text\" name=\"FirstName\" size=\"30\">";
				formHTML += "\n    </td>\n  </tr>";
			}
			// add the Fist Name choice if the AskFirstName CheckBox is checked
			if (AskLastName.Checked)
			{
				formHTML += "\n  <tr>\n    <td colspan=\"2\">";
				formHTML += "\n      <small>Last Name:</small>";
				formHTML += "\n    </td>\n  </tr>";
				formHTML += "\n  <tr>\n    <td colspan=\"2\">";
				formHTML += "\n      <input type=\"text\" name=\"LastName\" size=\"30\">";
				formHTML += "\n    </td>\n  </tr>";
			}
			// add the Email Address field and the Submit button
			formHTML += "\n  <tr><td><small>Email Address:</small></td></tr>";
			formHTML += "\n  <tr>\n    <td><input type=\"text\" name=\"Email\" size=\"20\"></td>";
			formHTML += "\n    <td><input type=\"submit\" value=\"Submit\"></td>";
			formHTML += "\n  </tr>";
			// add the Unsubscribe choice if the AllowUnsubscription CheckBox is checked
			if (AllowUnsubscription.Checked)
			{
				formHTML += "\n  <tr>\n    <td colspan=\"2\">";
				formHTML += "\n      <small><input type=\"radio\" name=\"Action\" value=\"Subscribe\" checked>Subscribe";
				formHTML += "\n      <input type=\"radio\" name=\"Action\" value=\"Unsubscribe\">Unsubscribe</small>";
				formHTML += "\n    </td>\n  </tr>";
			}
			formHTML += "\n</table>\n</center>";
        	
			// show the table just created
			ResultForm.Text = formHTML;
			
			// get the settings
			Configuration.ModuleSettings settings = Configuration.ModuleConfig.GetSettings();
			
			// add the <form> tag and show the HTML code in the TextBox
			formHTML = string.Format("<form name=\"newsletter\" action=\"{0}\" method=\"get\">\n{1}\n</form>", 
				settings.SubscribeUrl, formHTML);	
			
			ResultFormHTML.Text = formHTML;
        	
			// show the result table and the HTML code
			TableResult.Visible=true;
		}


		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			base.OnInit(e);
			InitializeComponent();
			
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
	}
}