calling an app_code class RSS

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  pcrymble

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  84 Points

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  calling an app_code class

  Nov 17, 2012 12:10 PM|LINK

  Hi there

  I have a website - on quite a few of the pages there is a file upload box which saves the file and emails a confirmation.

  Code is something like

  if fileupload1.hasfile then

      fileupload1.saveas(varfilename)

    etc

  end if

  I'd love to put the code in the app_code folder so I dont have to repeat it. However, is it possible to access the file and the control from the class? How do I do that..

  Thanks

  Peter

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  grwlgrv

  Member

  51 Points

  74 Posts

  Re: calling an app_code class

  Nov 17, 2012 12:18 PM|LINK

  write a functin on tha same page as

  public void savefile(FileUpload fld)

  {

      if fld.hasfile then

      fld.saveas(varfilename)

      etc

  }

  you can use this function in any other page by creating  an object of that page or by inheriting that page.

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  Mohamed Elza...

  Member

  104 Points

  17 Posts

  Re: calling an app_code class

  Nov 17, 2012 01:14 PM|LINK

  Hello, bro
  Sometimes we need to make a class that usually contains our global resources to avoid the duplication in our implementation as you mentioned above. Let us now to show you by simple steps how make that, First we need to add App_Code folder
  to Solution Explorer, then we should add also a class to App_Code folder to add our code inside it.
  1- Here we will add this code inside the class that called UploadUtilities.

  using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.IO;
  using System.Web;
  using System.Web.UI;
  using System.Web.UI.WebControls;
  public class UploadUtilities
  {
      public static bool UploadFile(FileUpload filectrl, string path)
      {
          if (File.Exists(path) == false && filectrl.HasFile)
          {
              filectrl.SaveAs(path);
              return true;
          }
          else
          { return false; }
      }
  }

  2- Second step we will add this tags in source page

     <form id="form1" runat="server">
      <div>
          <asp:FileUpload ID="FileUpload1" runat="server" />
  &nbsp;<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Upload" />
      </div>
      </form>

  3- Third step we will add this in code-behind

     protected void Button1_Click(object sender, EventArgs e)
      {
          bool status = UploadUtilities.UploadFile(FileUpload1, Server.MapPath("~/Images/" + FileUpload1.FileName));
          if (status == true)
          { Response.Write("File Has Been Uploaded"); }
          else
          { Response.Write("File Exist"); }
      }

  Finally, if you face any problems feel free to ask me again.
  
  

  
  
  

  Sincerely,
  Mohamed Elzayat
  Please remember to Mark the replies as Answers if they help.
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  • Edited by Mohamed Elzayat on Nov 17, 2012 01:16 PM
  • Edited by Mohamed Elzayat on Nov 17, 2012 01:18 PM
  • Marked as answer by pcrymble on Nov 21, 2012 07:49 AM
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  Ruchira

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  Re: calling an app_code class

  Nov 17, 2012 02:13 PM|LINK

  Hello,

  pcrymble

  However, is it possible to access the file and the control from the class? How do I do that..

  Not really.

  pcrymble

  I'd love to put the code in the app_code folder so I dont have to repeat it.

  Instead, put it in a user control. Check on the below links for that

  http://msdn.microsoft.com/en-us/library/wt3k2fyw(v=vs.100).aspx

  http://www.c-sharpcorner.com/uploadfile/jayendra/how-to-create-user-control-in-Asp-Net/

  Please 'Mark as Answer' if this post helps you.

  My Tech blog | My YouTube Channel
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  ramiramilu

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  Re: calling an app_code class

  Nov 17, 2012 02:36 PM|LINK

  I wouldnt access a fileupload control in a class file, rather I would create a method in class file which will accept a FileStrean, and then call this method using FileUpload.PostedFile.InputStream, and then use perform action on that stream...

  thanks,

  Website
  JumpStart
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  pcrymble

  Member

  84 Points

  44 Posts

  Re: calling an app_code class

  Nov 21, 2012 07:49 AM|LINK

  Thanks - really helpful

  Peter