protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
if (!string.IsNullOrEmpty(Request.QueryString["ID"]) && Request.QueryString["Flag"] == "download")
{
if (!IsNumber(Request.QueryString["ID"]))
{
Page.ClientScript.RegisterClientScriptBlock(GetType(), "script", "<script type='text/javascript'>alert('查询字符串错误');window.close();</script>");
return;
}
LabMS.BLL.AttachmentItem attachItem = new LabMS.BLL.AttachmentItem();
LabMS.Model.AttachmentItem attachmodel = new LabMS.Model.AttachmentItem();
attachmodel = attachItem.GetModel(int.Parse(Request.QueryString["ID"].Trim()));
FileItemDownload(attachmodel.ID, attachmodel.Item_Address, attachmodel.Item_Name);
return;
}
else if (!string.IsNullOrEmpty(Request.QueryString["ID"]) && Request.QueryString["Flag"] == "attachdownload")
{
if (!IsNumber(Request.QueryString["ID"]))
{
Page.ClientScript.RegisterClientScriptBlock(GetType(), "script", "<script type='text/javascript'>alert('查询字符串错误');window.close();</script>");
return;
}
LabMS.BLL.Attachment Attach = new LabMS.BLL.Attachment();
LabMS.Model.Attachment attachmodel = new LabMS.Model.Attachment();
attachmodel = Attach.GetModel(int.Parse(Request.QueryString["ID"].Trim()));
FileItemDownload(attachmodel.ID, attachmodel.Attach_Address, attachmodel.Attach_Name);
return;
}
if (!string.IsNullOrEmpty(Request.QueryString["ID"]))
{
if (!IsNumber(Request.QueryString["ID"]))
{
Page.ClientScript.RegisterClientScriptBlock(GetType(), "script", "<script type='text/javascript'>alert('查询字符串错误');window.close();</script>");
return;
}
LabMS.BLL.Attachment Attach = new LabMS.BLL.Attachment();
LabMS.Model.Attachment attachmodel = new LabMS.Model.Attachment();
attachmodel = Attach.GetModel(int.Parse(Request.QueryString["ID"].Trim()));
Gv_DataBind(attachmodel);
}
}
//if (Request.QueryString["ID"] == null)
//{
// Common.JShelper.JSAlert(Page, "err", "参数错误!");
// return;
//}
//else if (Request.QueryString["ID"] != null && Request.QueryString["type"] == null)
//{
// int iTemp = 0;
// string strID = Request.QueryString["ID"].ToString();
// if (!int.TryParse(strID, out iTemp))
// {
// Common.JShelper.JSAlert(Page, "err", "参数错误!");
// return;
// }
// LabMS.Model.Attachment mattach = new LabMS.Model.Attachment();
// LabMS.BLL.Attachment battach = new LabMS.BLL.Attachment();
// mattach = battach.GetModel(iTemp);
// if (mattach.Attach_Name == "")
// {
// Response.Redirect("DownloadFile.aspx?ID=" + strID + "&type=1");
// }
// else
// {
// string FullFileName = mattach.Attach_Address;
// string FileName = mattach.Attach_Name;
// try
// {
// FullFileName = Server.MapPath("../" + FullFileName);
// Context.Response.Buffer = true;
// Context.Response.Clear();
// Context.Response.AppendHeader("Content-Disposition ", "attachment;filename= " + HttpUtility.UrlEncode(FullFileName, System.Text.Encoding.UTF8));
// Response.ContentType = "application/x-zip-compressed";
// Response.TransmitFile(FullFileName);
// }
// catch
// {
// Common.JShelper.JSAlert(Page, "err", "路径错误!");
// return;
// }
// Response.End();
// }
//}
//else if (Request.QueryString["ID"] != null && Request.QueryString["type"] != null)
//{
// if (Request.QueryString["type"].ToString().Equals("1"))
// {
// List<LabMS.Model.AttachmentItem> listattchitem = new List<LabMS.Model.AttachmentItem>();
// LabMS.BLL.AttachmentItem battachitem = new LabMS.BLL.AttachmentItem();
// int iTemp = 0;
// string strID = Request.QueryString["ID"].ToString();
// if (!int.TryParse(strID, out iTemp))
// {
// Common.JShelper.JSAlert(Page, "err", "参数错误!");
// return;
// }
// listattchitem = battachitem.GetModelList("Attach_ID = " + strID);
// foreach (LabMS.Model.AttachmentItem mai in listattchitem)
// {
// mai.Item_Address = "<a onclick=foo('DownloadFile.aspx?type=2&ID=" + mai.ID.ToString() + "')>点击下载</a>";
// }
// gvFile.DataSource = listattchitem;
// gvFile.DataBind();
// gvFile.Visible = true;
// }
// else if (Request.QueryString["type"].ToString().Equals("2"))
// {
// int iTemp = 0;
// string strID = Request.QueryString["ID"].ToString();
// if (!int.TryParse(strID, out iTemp))
// {
// Common.JShelper.JSAlert(Page, "err", "参数错误!");
// return;
// }
// LabMS.Model.AttachmentItem mattach = new LabMS.Model.AttachmentItem();
// LabMS.BLL.AttachmentItem battach = new LabMS.BLL.AttachmentItem();
// mattach = battach.GetModel(iTemp);
// string FullFileName = mattach.Item_Address;
// string FileName = mattach.Item_Name;
// try
// {
// FullFileName = Server.MapPath("../" + FullFileName);
// Context.Response.Buffer = true;
// Context.Response.Clear();
// Context.Response.AppendHeader("Content-Disposition ", "attachment;filename= " + HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8));
// Response.ContentType = "application/x-zip-compressed";
// Response.TransmitFile(FullFileName);
// }
// catch
// {
// Common.JShelper.JSAlert(Page, "err", "路径错误!");
// return;
// }
// Response.End();
// }
//}
}
private void FileItemDownload(int itemID)
{
if (itemID == 0)
{
lb_Error.Text = "������������";
return;
}
System.IO.Stream iStream = null;
try
{
//�����ļ�ȫ·����
LabMS.BLL.AttachmentItem AttachItem = new LabMS.BLL.AttachmentItem();
LabMS.Model.AttachmentItem itemmodel = new LabMS.Model.AttachmentItem();
itemmodel = AttachItem.GetModel(itemID);
string fullpath = Server.MapPath("../" + itemmodel.Item_Address);
string fileName = itemmodel.Item_Name;
string NameTemp = "";
if (Request.Browser.Browser == "IE")
{
NameTemp = HttpUtility.UrlEncode(fileName);
NameTemp = NameTemp.Replace("+", "%20");
}
else
{
NameTemp = fileName;
NameTemp = NameTemp.Replace(" ", "");
}
Response.Clear();
Response.Charset = "UTF-8";
Response.Buffer = true;
Response.ContentEncoding = System.Text.Encoding.UTF8;
Response.HeaderEncoding = System.Text.Encoding.UTF8;
Response.AppendHeader("Content-Disposition", "attachment;filename=" + NameTemp);
Response.ContentType = "application/octet-stream";
byte[] buffer = new byte[100000];
int iLength;
long dataToRead;
iStream = new FileStream(fullpath, FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read);
dataToRead = iStream.Length;
while (dataToRead > 0)
{
if (Response.IsClientConnected)
{
iLength = iStream.Read(buffer, 0, 100000);
Response.BinaryWrite(buffer);
Response.Flush();
buffer = new byte[100000];
dataToRead = dataToRead - iLength;
}
else
{
dataToRead = -1;
}
}
}
catch (Exception ex)
{
lb_Error.Text = ex.Message;
}
finally
{
if (iStream != null)
{
iStream.Close();
}
}
}
