public System.IO.MemoryStream ShowImage(string costcode, int offset, ref string filepath)
{
DDCOST_CENT_DWG ddDrawing = null;
byte[] photosource = null;
System.IO.MemoryStream strm;
try
{
ddDrawing = (from c in DB.DDCOST_CENT_DWG
where c.COST_CENT_CODE == costcode
select c).SingleOrDefault <DDCOST_CENT_DWG>();
if (ddDrawing.IsNotNullOrEmpty())
{
if (ddDrawing.PHOTO != null)
{
photosource = ddDrawing.PHOTO.ToArray();
strm = new System.IO.MemoryStream();
strm.Write(photosource, offset, photosource.Length - offset);
filepath = ddDrawing.FILE_PATH;
return(strm);
}
else
{
return(null);
}
}
else
{
return(null);
}
}
catch (System.Data.Linq.ChangeConflictException ex)
{
DB.ChangeConflicts.ResolveAll(System.Data.Linq.RefreshMode.KeepChanges);
ex.LogException();
return(null);
}
catch (Exception ex)
{
throw ex.LogException();
}
}
////[DllImport(@"urlmon.dll", CharSet = CharSet.Auto)]
////private extern static System.UInt32 FindMimeFromData(
//// System.UInt32 pBC,
//// [MarshalAs(UnmanagedType.LPStr)] System.String pwzUrl,
//// [MarshalAs(UnmanagedType.LPArray)] byte[] pBuffer,
//// System.UInt32 cbSize,
//// [MarshalAs(UnmanagedType.LPStr)] System.String pwzMimeProposed,
//// System.UInt32 dwMimeFlags,
//// out System.UInt32 ppwzMimeOut,
//// System.UInt32 dwReserverd
////);
////public string getMimeFromFile(byte[] byteArray)
////{
//// byte[] buffer = new byte[256];
//// using (System.IO.MemoryStream fs = new System.IO.MemoryStream(byteArray))
//// {
//// if (fs.Length >= 256)
//// fs.Read(buffer, 0, 256);
//// else
//// fs.Read(buffer, 0, (int)fs.Length);
//// }
//// try
//// {
//// System.UInt32 mimetype;
//// FindMimeFromData(0, null, buffer, 256, null, 0, out mimetype, 0);
//// System.IntPtr mimeTypePtr = new IntPtr(mimetype);
//// string mime = Marshal.PtrToStringUni(mimeTypePtr);
//// Marshal.FreeCoTaskMem(mimeTypePtr);
//// return mime;
//// }
//// catch (Exception e)
//// {
//// return e.Message;
//// }
////}
private bool SaveDrawing(CostCenterMaster costcentermaster)
{
///SaveDrawingSQL(costcentermaster);
//return true;
DDCOST_CENT_DWG ddDrawing = null;
bool submit = false;
bool insert = false;
bool update = false;
try
{
ddDrawing = (from c in DB.DDCOST_CENT_DWG
where c.COST_CENT_CODE == costcentermaster.CostCentCode
select c).SingleOrDefault <DDCOST_CENT_DWG>();
if (ddDrawing.IsNotNullOrEmpty())
{
ddDrawing.UPDATED_BY = userInformation.UserName;
ddDrawing.UPDATED_DATE = serverDateTime;
ddDrawing.DELETE_FLAG = false;
if (costcentermaster.Photo != null)
{
//ddDrawing.PHOTO = System.IO.File.ReadAllBytes(costcentermaster.ImageByte);
ddDrawing.PHOTO = costcentermaster.ImageByte;
ddDrawing.FILE_PATH = costcentermaster.FilePath;
}
update = true;
}
else
{
ddDrawing = new DDCOST_CENT_DWG();
ddDrawing.ENTERED_BY = userInformation.UserName;
ddDrawing.ENTERED_DATE = serverDate;
ddDrawing.DELETE_FLAG = false;
ddDrawing.COST_CENT_CODE = costcentermaster.CostCentCode;
ddDrawing.PHOTO = costcentermaster.ImageByte;
ddDrawing.FILE_PATH = costcentermaster.FilePath;
insert = true;
DB.DDCOST_CENT_DWG.InsertOnSubmit(ddDrawing);
}
submit = true;
DB.SubmitChanges();
return(true);
}
catch (System.Data.Linq.ChangeConflictException ex)
{
DB.ChangeConflicts.ResolveAll(System.Data.Linq.RefreshMode.KeepChanges);
ex.LogException();
return(false);
}
catch (Exception ex)
{
if (submit == true)
{
if (insert == true)
{
DB.DDCOST_CENT_DWG.DeleteOnSubmit(ddDrawing);
}
if (update == true)
{
DB.DDCOST_CENT_DWG.Context.Refresh(System.Data.Linq.RefreshMode.OverwriteCurrentValues, ddDrawing);
}
}
throw ex.LogException();
}
}
