public int UpdateBackPicFile(string filename, byte[] filebytes) { try { int i = 0; string sqlstr = "update G_DPicFile set Fileimg=@Fileimg where Filename=@Filename"; SqlCommand comm = new SqlCommand(); comm.CommandText = sqlstr; comm.Parameters.AddWithValue("@Fileimg", filebytes); comm.Parameters.AddWithValue("@Filename", filename); //Czlt-2012-12-14 假如图形修改成功以后 要更新备份表中的图形信息 i = dba.ExecCommand(comm); if (i >= 1) { CzltUpdateBack(); } return(i); //return dba.ExecCommand(comm); } catch (Exception ex) { return(-1); } }