addevent.cs

一个ASP.NET下的中文内容管理和社区系统

namespace ASPNET.StarterKit.Communities.Events {

    using System;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.HtmlControls;
    using ASPNET.StarterKit.Communities;


    //*********************************************************************
    //
    // AddEvent Class
    //
    // Represents the Add Event page. Enables users to list new events.
    //
    //*********************************************************************

    public class AddEvent : ContentAddPage {
    
        string _skinFileName = "Events_AddEvent.ascx";
        string _sectionContent = "ASPNET.StarterKit.Communities.Events.EventSection";
 
 
        TextBox txtEventTitle;
        TopicPicker dropTopics;
        TextBox txtEventLink;
        TextBox txtEventBriefDescription;
        HtmlTextBox txtEventFullDescription;
        TextBox txtEventLocation;
        TextBox txtEventSpeaker;
        HtmlTextBox txtEventSpeakerBiography;
        HtmlInputFile txtImageFile;
        Image imgEventImage;
        DatePicker ctlEventDate;
        DatePicker ctlEventDateVisible;
        Label lblInvalidDisplayDate;
        Label lblInvalidEventDate;
        Label lblInvalidDateCompare;


        //*********************************************************************
        //
        // SkinLoadEvent
        //
        // The skin load event happens after a page skin has been loaded.
        // Here, we grab the necessary controls from the page skin.
        //
        //*********************************************************************
        void SkinLoadEvent(Object s, SkinLoadEventArgs e) {

   			// Find the Form so that we can change the EncType of the post.
			HtmlForm form = (HtmlForm)Page.FindControl("PageForm");
			form.Enctype="multipart/form-data";

            // Find Topic Picker
            dropTopics = (TopicPicker)GetControl(e.Skin, "dropTopics");

            // Find Event Title
            txtEventTitle = (TextBox)GetControl(e.Skin, "txtEventTitle" );
            
            // Find Event Link
            txtEventLink = (TextBox)GetControl(e.Skin, "txtEventLink");
            
            // Find Event Brief Description
            txtEventBriefDescription = (TextBox)GetControl(e.Skin, "txtEventBriefDescription" );
            
            // Find Event Full Description
            txtEventFullDescription = (HtmlTextBox)GetControl(e.Skin, "txtEventFullDescription" );


            // Find Event Location
            txtEventLocation = (TextBox)GetControl(e.Skin, "txtEventLocation" );

            // Find Event Speaker
            txtEventSpeaker = (TextBox)GetControl(e.Skin, "txtEventSpeaker" );


            // Find Event Speaker Biography
            txtEventSpeakerBiography = (HtmlTextBox)GetControl(e.Skin, "txtEventSpeakerBiography" );

            
            // Find Event Date
            ctlEventDate = (DatePicker)GetControl(e.Skin, "ctlEventDate" );
  
            // Find Event Date Visible
            ctlEventDateVisible = (DatePicker)GetControl(e.Skin, "ctlEventDateVisible" );
              
            // Find the image upload control  
            txtImageFile = (HtmlInputFile)GetControl(e.Skin, "txtImageFile");    
              
            // Find and hide the event image control
            imgEventImage = (Image)GetControl(e.Skin, "imgEventImage");
            imgEventImage.Visible = false;
            
            // Find Error Labels
            lblInvalidDisplayDate = (Label)GetControl(e.Skin, "lblInvalidDisplayDate");
            lblInvalidEventDate = (Label)GetControl(e.Skin, "lblInvalidEventDate");
            lblInvalidDateCompare = (Label)GetControl(e.Skin, "lblInvalidDateCompare");

		    // Hide Error Labels by default
		    lblInvalidEventDate.Visible = false;
		    lblInvalidDisplayDate.Visible = false;
		    lblInvalidDateCompare.Visible = false;
        }
        




        //*********************************************************************
        //
        // SubmitEvent Method
        //
        // This method is raised by clicking the Add button in the Add 
        // Event form. It adds the event to the database.
        //
        //*********************************************************************
    	private void SubmitEvent(Object s, EventArgs e) {
            // Check for valid dates
            DateTime eventDate;
            DateTime displayDate;

            try {
                eventDate = ctlEventDate.Date.ToUniversalTime();
            } catch {
                lblInvalidEventDate.Visible = true;
                return;
            }

                        
            try {
                displayDate = ctlEventDateVisible.Date.ToUniversalTime();
            } catch {
                lblInvalidDisplayDate.Visible = true;
                return;
            }
            
            if (eventDate < displayDate) {
                lblInvalidDateCompare.Visible = true;
                return;
            }
                
       
            if (Page.IsValid) {
			    // Check moderation status
			    int moderationStatus = 1;
			    if (objSectionInfo.EnableModeration && !objUserInfo.MayModerate)
			        moderationStatus = 0;
			        
			    // Get Topic
			    int topicID = -1;
			    if (objSectionInfo.EnableTopics)
			        topicID = Int32.Parse(dropTopics.SelectedItem.Value);    


                // Add the Event
                int contentPageID = EventUtility.AddEvent
                    (
                        objSectionInfo.ID,
                        objUserInfo.Username,
                        txtEventTitle.Text,
                        txtEventLink.Text,    
                        txtEventBriefDescription.Text,
                        txtEventFullDescription.Text,
                        txtEventLocation.Text,
                        txtEventSpeaker.Text,
                        txtEventSpeakerBiography.Text,
                        eventDate,
                        displayDate,
                        topicID,
                        moderationStatus
                    );


                // Add the Image
    		    ImageUtility.AddSectionImage(contentPageID, txtImageFile.PostedFile);
                    
				
				// Show warning message if moderation enabled
				if (objSectionInfo.EnableModeration && !objUserInfo.MayModerate)
				    Context.Response.Redirect(CommunityGlobals.CalculatePath("Messages_Message.aspx?message=moderation"));

               // Otherwise, redirect to default page and send notifications
	            Context.Server.ScriptTimeout = 10 * 60;
				Context.Response.Redirect(CommunityGlobals.CalculatePath("Default.aspx"), false);
	            Context.Response.Flush();
	            Context.Response.Close();            

				NotifyUtility.SendNotifications(objSectionInfo.ID, contentPageID, txtEventTitle.Text, objUserInfo.Username);
			    Context.Response.End();    
            }

		}



        //*********************************************************************
        //
        // AddEvent Constructor
        //
        // Calls the base SkinnedCommunityControl constructor
        // and assigns the default page skin. 
        //
        //*********************************************************************

        public AddEvent() : base() {
            // Assign a default skin file name
            SkinFileName = _skinFileName;
            
            // Specify Event Section Content
            SectionContent = _sectionContent;
            
            // Wire-up event handlers
            this.SkinLoad += new SkinLoadEventHandler(SkinLoadEvent);
            this.Submit += new SubmitEventHandler(SubmitEvent);
        }





    }
}