WebGIM/GIM_site/WebUserControls/mod_fileUpload.ascx.cs

using SteamWare;
using System;
using System.IO;
using System.Web;
using System.Web.UI.WebControls;

namespace GIM_site.WebUserControls
{
  public partial class mod_fileUpload : SteamWare.UserControl
  {
    /// <summary>
    /// abilita modifica/cancellazione allegati
    /// </summary>
    public bool enableMod { get; set; }

    public bool showOpenNewTab
    {
      get
      {
        return divOpenNew.Visible;
      }
      set
      {
        divOpenNew.Visible = value;
        divNormal.Visible = !value;
      }
    }

    /// <summary>
    /// caricamento pagina
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Page_Load(object sender, EventArgs e)
    {
      if (!IsPostBack)
      {
        if (memLayer.ML.QSI("numIntMtz") != 0)
        {
          numIntMtz = memLayer.ML.QSI("numIntMtz");
        }
        hlOpenNew.NavigateUrl = string.Format("~/AllegatiRichiesta?numIntMtz={0}", numIntMtz);
        hlOpenNew.Enabled = !enableMod;
        fisVisFU(false);
        grView.DataBind();
        divNewEdit.Visible = enableMod; // isWriteEnabled;
        btnAdd.DataBind();
      }
    }

    /// <summary>
    /// Num Int richiesto
    /// </summary>
    public int numIntMtz
    {
      get
      {
        int answ = 0;
        try
        {
          answ = Convert.ToInt32(hfNumIntMtz.Value);
        }
        catch
        { }
        return answ;
      }
      set
      {
        hfNumIntMtz.Value = value.ToString();
      }
    }

    public void doUpdate()
    {
      grView.DataBind();
    }

    public int numAllegati
    {
      get
      {
        int answ = 0;
        try
        {
          //answ = DtProxy.man.taFile.getByImpegno(numIntMtz).Rows.Count;
          answ = WebGimUtils.elencoFiles(numIntMtz).Count;
        }
        catch
        { }
        return answ;
      }
    }

    protected void Upload(object sender, EventArgs e)
    {
      string filename = Path.GetFileName(FileUpload1.PostedFile.FileName);
      string contentType = FileUpload1.PostedFile.ContentType;
      using (Stream fs = FileUpload1.PostedFile.InputStream)
      {
        using (BinaryReader br = new BinaryReader(fs))
        {
          byte[] bytes = br.ReadBytes((Int32)fs.Length);
          // PROCEDO SOLO SE HO UN FILE!!!! ovvero bytes <> null
          if (bytes.Length > 0)
          {
            fileMover.obj.setDirectoryMapPath(WebGimUtils.dirPathIntMtz(numIntMtz));
            // controllo se sia caricamento o update...
            if (grView.SelectedIndex != -1)
            {
              try
              {
                fileMover.obj.eliminaFile(grView.SelectedValue.ToString());
                fileMover.obj.salvaFileBuffer(filename, bytes);
                //int orig_idxFile = Convert.ToInt32(grView.SelectedValue);
                //DtProxy.man.taFile.UpdateQuery(idxImpegno, 0, filename, contentType, bytes, orig_idxFile);
              }
              catch
              { }
            }
            else
            {
              fileMover.obj.salvaFileBuffer(filename, bytes);
            }
          }
        }
      }
      Response.Redirect(Request.Url.AbsoluteUri);
    }

    public string fileUrl(object name)
    {
      return string.Format("{0}//{1}", WebGimUtils.dirPathIntMtz(numIntMtz), name);
    }

    protected void DownloadFile(object sender, EventArgs e)
    {
      byte[] bytes;
      string fileName, contentType;

      //int idxFile = int.Parse((sender as LinkButton).CommandArgument);
      //DS_Utility.tblFilesRow fileRow = DtProxy.man.taFile.getByKey(idxFile)[0];
      //bytes = fileRow.Data;
      //contentType = fileRow.ContentType;
      //fileName = fileRow.FileName;

      fileName = ((sender as LinkButton).CommandArgument);
      bytes = fileMover.obj.scaricaFile(fileName);
      contentType = MimeMapping.GetMimeMapping(fileName);

      Response.Clear();
      Response.Buffer = true;
      Response.Charset = "";
      Response.Cache.SetCacheability(HttpCacheability.NoCache);
      Response.ContentType = contentType;
      Response.AppendHeader("Content-Disposition", "attachment; filename=" + fileName);
      Response.BinaryWrite(bytes);
      Response.Flush();
      Response.End();
    }

    protected void grView_SelectedIndexChanged(object sender, EventArgs e)
    {
      // mostro controllo x edit...  
      fisVisFU(true);
      btnUpload.Text = "Sostituisci File";
    }

    protected void btnAdd_Click(object sender, EventArgs e)
    {
      fisVisFU(true);
      btnUpload.Text = "Carica Nuovo File";
    }
    /// <summary>
    /// fix visibilità controllo file upload
    /// </summary>
    /// <param name="showAdd">mostra controlli add=true oppure nasconde = false</param>
    private void fisVisFU(bool showAdd)
    {
      divFileUpl.Visible = showAdd;
      btnAdd.Visible = !showAdd;
      btnCancel.Visible = showAdd;
      if (grView.SelectedIndex != -1 && !showAdd)
      {
        grView.SelectedIndex = -1;
      }
    }

    protected void btnCancel_Click(object sender, EventArgs e)
    {
      fisVisFU(false);
    }

    protected void odsFile_Deleting(object sender, ObjectDataSourceMethodEventArgs e)
    {
      // cancello manualmente
      fileMover.obj.setDirectoryMapPath(WebGimUtils.dirPathIntMtz(numIntMtz));
      fileMover.obj.eliminaFile(e.InputParameters["Original_Nome"].ToString());
      // fermo procedura...
      e.Cancel = true;
    }
  }
}