adddownload.cs

一个ASP.NET下的中文内容管理和社区系统

namespace ASPNET.StarterKit.Communities.Downloads {

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


    //*********************************************************************
    //
    // AddDowload Class
    //
    // Represents the Add Download page. Enables users to list new files.
    //
    //*********************************************************************

    public class AddDownload : ContentAddPage {
    
        string _skinFileName = "Downloads_AddDownload.ascx";
        string _sectionContent = "ASPNET.StarterKit.Communities.Downloads.DownloadsSection";
 
 
 		HtmlInputFile txtDownloadFile;
        TextBox txtDownloadTitle;
        TextBox txtDownloadBriefDescription;
        HtmlTextBox txtDownloadFullDescription;
        TopicPicker dropTopics;


 
        //*********************************************************************
        //
        // SkinLoadDownload
        //
        // The skin load event happens after a page skin has been loaded.
        // Here, we grab the necessary controls from the page skin.
        //
        //*********************************************************************
        void SkinLoadDownload(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 Download Title
			txtDownloadTitle = (TextBox)GetControl(e.Skin, "txtDownloadTitle" );
           
            // Find Topics Panel and DropDownList
            dropTopics = (TopicPicker)GetControl(e.Skin, "dropTopics");            
            
			//Find Brief Description
			txtDownloadBriefDescription = (TextBox)GetControl(e.Skin, "txtDownloadBriefDescription" );
            

			//Find Full Description
			txtDownloadFullDescription= (HtmlTextBox)GetControl(e.Skin, "txtDownloadFullDescription" );

            // Find the download upload button
			txtDownloadFile = (HtmlInputFile)GetControl(e.Skin, "txtDownloadFile");

        }
        




        //*********************************************************************
        //
        // SubmitDownload Method
        //
        // This method is raised by clicking the Add button in the Add 
        // form. It adds a new file to the database.
        //
        //*********************************************************************
    	private void SubmitDownload(Object s, EventArgs e) {
  			if (Page.IsValid) {
			    // Check moderation status
			    ModerationStatus moderationStatus = ModerationStatus.Approved;
			    if (objSectionInfo.EnableModeration && !objUserInfo.MayModerate)
			        moderationStatus = ModerationStatus.Pending;
			        
			    // Get Topic
			    int topicID = -1;
			    if (objSectionInfo.EnableTopics)
			        topicID = Int32.Parse(dropTopics.SelectedItem.Value);    
			    
			    
			    // Get the file data
			    HttpPostedFile theFile = txtDownloadFile.PostedFile;
			    int fileSize = theFile.ContentLength;
			    byte[] fileBytes = new byte[fileSize];
			    System.IO.Stream myStream = theFile.InputStream;
			    myStream.Read(fileBytes,0,fileSize);


			    // Get file name
			    // The filename returns the entire client path. 
			    // Filter for both Windows and Unix file paths.
			    Regex fileNameRE = new Regex("\\\\|/");
			    string[] fileNameSplit = fileNameRE.Split(theFile.FileName);
			    string _fileName = fileNameSplit[fileNameSplit.GetUpperBound(0)];

			        
				// Add the file
				int contentPageID = DownloadsUtility.AddDownload
					(
					objUserInfo.Username,
					objSectionInfo.ID,
					moderationStatus,
					txtDownloadTitle.Text,
					txtDownloadBriefDescription.Text,
					txtDownloadFullDescription.Text,
					topicID,
					_fileName,
					fileBytes
					);

				
				// 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, txtDownloadTitle.Text, objUserInfo.Username);
			    Context.Response.End();    
			}  	
        }  	
    	
  
        //*********************************************************************
        //
        // AddDownload Constructor
        //
        // Calls the base SkinnedCommunityControl constructor
        // and assigns the default page skin. 
        //
        //*********************************************************************

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





    }
}