上传：
private void UploadFile()
{
System.Web.HttpPostedFile file = this.uploadFile.PostedFile;
string fileName = file.FileName;
if(fileName.Trim() == "")
{
WebCommon.ShowMessage(this.Page,"Please input the file name.");
return;
}
fileName = fileName.Substring(fileName.LastIndexOf("\\")+1);
int fileLength = file.ContentLength;
byte[] fileBytes = new byte[fileLength];
file.InputStream.Read(fileBytes,0,fileLength);
BBA.BLL.TelUserListBiz biz = new TelUserListBiz();
BBA.Model.TelUserListData data = new TelUserListData();
data.FileName = fileName;
data.FormID = this.lblFormID.Text;
data.UserList = fileBytes;
data.Discripton = "User List";
if(biz.Exists(data.FormID))
{
biz.Update(data);
}
else
{
biz.Insert(data);
}
this.lblFileName.Text = "<br>File Name: " + fileName + "<br>";
}
public bool Insert (TelUserListData data)
{
#region Populate Parameters
SqlParameter[] arParams = new SqlParameter[4];
arParams[0] = new SqlParameter("@FormID", SqlDbType.VarChar, 50);
arParams[0].Value = data.FormID;
arParams[1] = new SqlParameter("@UserList", SqlDbType.Image);
arParams[1].Value = data.UserList;
arParams[2] = new SqlParameter("@FileName", SqlDbType.VarChar, 256);
arParams[2].Value = data.FileName;
arParams[3] = new SqlParameter("@Discripton", SqlDbType.VarChar, 50);
arParams[3].Value = data.Discripton;
#endregion
SqlHelper.ExecuteNonQuery(this.ConnectionString, CommandType.StoredProcedure, "usp_TelUserList_Insert", arParams);
return true;
}
下载：
private void btnView_Click(object sender, System.EventArgs e)
{
BBA.BLL.TelUserListBiz biz = new TelUserListBiz();
string formID = this.lblFormID.Text;
if(biz.Exists(formID))
{
DataTable dt = biz.SelectByFormID(formID);
string fileName = dt.Rows[0]["FileName"].ToString();
byte[] fileBytes = (byte[])dt.Rows[0]["UserList"];
int fileLength = fileBytes.Length;
Response.Clear();
Response.ClearHeaders();
Response.Buffer = false;
Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName);
Response.AppendHeader("Content-Length", fileLength.ToString());
Response.ContentType = "application/octet-stream";
Response.BinaryWrite(fileBytes);
Response.Flush();
Response.End();
}
else
{
this.btnView.Enabled = false;
WebCommon.ShowMessage(this.Page,"File not exists.");
}
}
SQL:
CreatePROCEDURE [dbo].[usp_TelUserList_Insert]
@FormID varchar(50),
@UserList image,
@FileName varchar(256),
@Discripton varchar(50)
AS
INSERT [dbo].[TelUserList]
(
[FormID],
[UserList],
[FileName],
[Discripton]
)
VALUES
(
@FormID,
@UserList,
@FileName,
@Discripton
)