protected void gv_List_Attachment_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int id = (int)gv_List_Attachment.DataKeys[e.RowIndex]["ID"];
EWF_Task_AttachmentBLL att = new EWF_Task_AttachmentBLL(id);
if (att.Model.UploadStaff == (int)Session["UserID"])
{
att.Delete();
BindAttachmentList();
}
else
{
MessageBox.Show(this, "对不起，您只能删除您自己上传的附件!");
}
}
//Upload Attachment
protected void btn_Up_Click(object sender, EventArgs e)
{
if (FileUpload1.HasFile)
{
try
{
string fullfilename = FileUpload1.FileName;
if (fullfilename.LastIndexOf(".") < 0)
{
MessageBox.Show(this, "无法识别的附件格式!");
return;
}
int FileSize = (FileUpload1.PostedFile.ContentLength / 1024);
if (FileSize > ConfigHelper.GetConfigInt("MaxAttachmentSize"))
{
MessageBox.Show(this.Page, "上传的文件不能大于" + ConfigHelper.GetConfigInt("MaxAttachmentSize") +
"KB!当前上传文件大小为:" + FileSize.ToString() + "KB");
return;
}
string extendname = fullfilename.Substring(fullfilename.LastIndexOf(".") + 1).ToLowerInvariant();
string filename = fullfilename.Substring(0, fullfilename.LastIndexOf("."));
byte[] filedata;
Stream filestream = FileUpload1.PostedFile.InputStream;
#region 自动压缩上传的图片
if (ATMT_AttachmentBLL.IsImage(extendname))
{
try
{
System.Drawing.Image originalImage = System.Drawing.Image.FromStream(filestream);
filestream.Position = 0;
int width = originalImage.Width;
if (width > 1024 || extendname == "bmp")
{
if (width > 1024)
{
width = 1024;
}
System.Drawing.Image thumbnailimage = ImageProcess.MakeThumbnail(originalImage, width, 0, "W");
MemoryStream thumbnailstream = new MemoryStream();
thumbnailimage.Save(thumbnailstream, System.Drawing.Imaging.ImageFormat.Jpeg);
thumbnailstream.Position = 0;
FileSize = (int)(thumbnailstream.Length / 1024);
extendname = "jpg";
filestream = thumbnailstream;
}
}
catch { }
}
#endregion
filedata = new byte[filestream.Length];
filestream.Read(filedata, 0, (int)filestream.Length);
filestream.Close();
EWF_Task_AttachmentBLL ta = new EWF_Task_AttachmentBLL();
ta.Model.Task = (int)ViewState["TaskID"];
ta.Model.Name = this.tbx_AttachmentName.Text.Trim();
if (ta.Model.Name == "")
{
ta.Model.Name = filename;
}
ta.Model.Description = this.tbx_AttachmentDescription.Text.Trim();
//ta.Model.FilePath = saveasfilename;
ta.Model.UploadStaff = int.Parse(Session["UserID"].ToString());
ta.Model.FileSize = FileUpload1.PostedFile.ContentLength / 1024;
ta.Model.FileType = extendname.ToUpper();
if (ta.Add(filedata) > 0)
{
BindAttachmentList();
}
else
{
MessageBox.Show(this, "附件上传失败");
}
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message);
return;
}
}
else
{
MessageBox.Show(this, "未选择要上传的附件！");
return;
}
}
private void Download(Guid guid)
{
EWF_Task_AttachmentBLL bll = new EWF_Task_AttachmentBLL(guid);
if (bll.Model == null) Response.End();
Response.Clear();
#region 确定ContentType
switch (bll.Model.FileType.ToLower())
{
case "jpg":
case "jpeg":
case "jpe":
Response.ContentType = "image/jpeg";
break;
case "gif":
Response.ContentType = "image/gif";
break;
case "bmp":
Response.ContentType = "image/bmp";
break;
case "png":
Response.ContentType = "image/png";
break;
case "tiff":
case "tif":
Response.ContentType = "image/tiff";
break;
case "doc":
case "docx":
Response.ContentType = "application/ms-word";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "xls":
case "xlsx":
Response.ContentType = "application/ms-excel";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "ppt":
case "pptx":
Response.ContentType = "application/ms-powerpoint";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "pdf":
Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "zip":
Response.ContentType = "application/zip";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "rar":
Response.ContentType = "application/rar";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "txt":
Response.ContentType = "text/plain";
break;
case "htm":
case "html":
Response.ContentType = "text/html";
break;
default:
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
}
#endregion
if (string.IsNullOrEmpty(bll.Model.FilePath))
{
byte[] data = bll.GetData();
if (data != null) Response.OutputStream.Write(data, 0, data.Length);
}
else
{
string filepath = bll.Model.FilePath;
if (filepath.StartsWith("~") || filepath.StartsWith("TaskAttachment")) filepath = Server.MapPath(filepath);
if (!File.Exists(filepath))
{
MessageBox.ShowAndRedirect(this, @"附件在服务器上不存在!", this.ResolveClientUrl("~/SubModule/desktop.aspx"));
return;
}
Response.WriteFile(filepath);
}
Response.Flush();
Response.End();
}
//Upload Attachment
protected void btn_Up_Click(object sender, EventArgs e)
{
if (FileUpload1.HasFile)
{
try
{
string fullfilename = FileUpload1.FileName;
if (fullfilename.LastIndexOf(".") < 0)
{
MessageBox.Show(this, "无法识别的附件格式!");
return;
}
int FileSize = (FileUpload1.PostedFile.ContentLength / 1024);
if (FileSize > ConfigHelper.GetConfigInt("MaxAttachmentSize"))
{
MessageBox.Show(this.Page, "上传的文件不能大于" + ConfigHelper.GetConfigInt("MaxAttachmentSize") +
"KB!当前上传文件大小为:" + FileSize.ToString() + "KB");
return;
}
string extendname = fullfilename.Substring(fullfilename.LastIndexOf(".") + 1).ToLowerInvariant();
string filename = fullfilename.Substring(0, fullfilename.LastIndexOf("."));
byte[] filedata;
Stream filestream = FileUpload1.PostedFile.InputStream;
#region 自动压缩上传的图片
if (ATMT_AttachmentBLL.IsImage(extendname))
{
try
{
System.Drawing.Image originalImage = System.Drawing.Image.FromStream(filestream);
filestream.Position = 0;
int width = originalImage.Width;
if (width > 1024 || extendname == "bmp")
{
if (width > 1024) width = 1024;
System.Drawing.Image thumbnailimage = ImageProcess.MakeThumbnail(originalImage, width, 0, "W");
MemoryStream thumbnailstream = new MemoryStream();
thumbnailimage.Save(thumbnailstream, System.Drawing.Imaging.ImageFormat.Jpeg);
thumbnailstream.Position = 0;
FileSize = (int)(thumbnailstream.Length / 1024);
extendname = "jpg";
filestream = thumbnailstream;
}
}
catch { }
}
#endregion
filedata = new byte[filestream.Length];
filestream.Read(filedata, 0, (int)filestream.Length);
filestream.Close();
EWF_Task_AttachmentBLL ta = new EWF_Task_AttachmentBLL();
ta.Model.Task = (int)ViewState["TaskID"];
ta.Model.Name = this.tbx_AttachmentName.Text.Trim();
if (ta.Model.Name == "") ta.Model.Name = filename;
ta.Model.Description = this.tbx_AttachmentDescription.Text.Trim();
//ta.Model.FilePath = saveasfilename;
ta.Model.UploadStaff = int.Parse(Session["UserID"].ToString());
ta.Model.FileSize = FileUpload1.PostedFile.ContentLength / 1024;
ta.Model.FileType = extendname.ToUpper();
if (ta.Add(filedata) > 0)
{
BindAttachmentList();
}
else
{
MessageBox.Show(this, "附件上传失败");
}
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message);
return;
}
}
else
{
MessageBox.Show(this, "未选择要上传的附件！");
return;
}
}
protected void gv_List_Attachment_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int id = (int)gv_List_Attachment.DataKeys[e.RowIndex]["ID"];
EWF_Task_AttachmentBLL att = new EWF_Task_AttachmentBLL(id);
if (att.Model.UploadStaff == (int)Session["UserID"])
{
att.Delete();
BindAttachmentList();
}
else
{
MessageBox.Show(this, "对不起，您只能删除您自己上传的附件!");
}
}
private void Download(Guid guid)
{
EWF_Task_AttachmentBLL bll = new EWF_Task_AttachmentBLL(guid);
if (bll.Model == null)
{
Response.End();
}
Response.Clear();
#region 确定ContentType
switch (bll.Model.FileType.ToLower())
{
case "jpg":
case "jpeg":
case "jpe":
Response.ContentType = "image/jpeg";
break;
case "gif":
Response.ContentType = "image/gif";
break;
case "bmp":
Response.ContentType = "image/bmp";
break;
case "png":
Response.ContentType = "image/png";
break;
case "tiff":
case "tif":
Response.ContentType = "image/tiff";
break;
case "doc":
case "docx":
Response.ContentType = "application/ms-word";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "xls":
case "xlsx":
Response.ContentType = "application/ms-excel";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "ppt":
case "pptx":
Response.ContentType = "application/ms-powerpoint";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "pdf":
Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "zip":
Response.ContentType = "application/zip";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "rar":
Response.ContentType = "application/rar";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
case "txt":
Response.ContentType = "text/plain";
break;
case "htm":
case "html":
Response.ContentType = "text/html";
break;
default:
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(bll.Model.Name + "." + bll.Model.FileType.ToLower()));
break;
}
#endregion
if (string.IsNullOrEmpty(bll.Model.FilePath))
{
byte[] data = bll.GetData();
if (data != null)
{
Response.OutputStream.Write(data, 0, data.Length);
}
}
else
{
string filepath = bll.Model.FilePath;
if (filepath.StartsWith("~") || filepath.StartsWith("TaskAttachment"))
{
filepath = Server.MapPath(filepath);
}
if (!File.Exists(filepath))
{
MessageBox.ShowAndRedirect(this, @"附件在服务器上不存在!", this.ResolveClientUrl("~/SubModule/desktop.aspx"));
return;
}
Response.WriteFile(filepath);
}
Response.Flush();
Response.End();
}
