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  • How to tell when a UISwitch inside of a UITableViewCell has been tapped?

    - by RexOnRoids
    How to tell when a UISwitch inside of a UITableViewCell has been tapped? My UISwitch is set up inside of the cell (generic cell) like this: UISwitch *mySwitch = [[[UISwitch alloc] initWithFrame:CGRectZero] autorelease]; [cell addSubview:mySwitch]; cell.accessoryView = mySwitch; And I am trying to detect a tap like this (but its not working): - (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath { NSUserDefaults *prefs; if(indexPath.section == 1){ switch(indexPath.row) { case 0: NSLog(@"Tapped Login Switch"); break; default: break; } } }

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  • RDLC filtering nested tables

    - by aprescott
    I am creating an RDLC report where the dataset consists of several datatables. There is one parent table and several child tables. What I would like to do is display relevant data from each child table for each row in the parent table. Here is a simplified example: table1 = "Purchase" has columns PurhcaseID, PurchaseNumber, PurchaseDate table2 = "PurchasedItem" has columns PurchaseItemID, PurhcaseID, ItemDescription In my RDLC, I have a Purchase table grouped on PurchaseDate and would like to display the PurchasedItems for each Purchase. The current solution uses a subreport, but I do not like this because it leaves an ugly empty space when there is no data for the subreport display. (I would be fine with using a subreport if I could properly hide it without leaving an empty space.) I am not able to rewrite the stored procedure to return a single table, either. How are others dealing with this scenario?

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  • RowFilter.regexFilter multiple columns

    - by twodayslate
    I am currently using the following to filter my JTable RowFilter.regexFilter( Pattern.compile(textField.getText(), Pattern.CASE_INSENSITIVE).toString(), columns ); How do I format my textField or filter so if I want to filter multiple columns I can do that. Right now I can filter multiple columns but my filter can only be of one of the columns An example might help my explanation better: Name Grade GPA Zac A 4.0 Zac F 1.0 Mike A 4.0 Dan C 2.0 The text field would contain Zac A or something similar and it would show the first Zac row if columns was int[]{0, 1}. Right now if I do the above I get nothing. The filter Zac works but I get both Zac's. A also works but I would then get Zac A 4.0 and Mike A 3.0. I hope I have explained my problem well. Please let me know if you do not understand.

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  • Help getting frame rate (fps) up in Python + Pygame

    - by Jordan Magnuson
    I am working on a little card-swapping world-travel game that I sort of envision as a cross between Bejeweled and the 10 Days geography board games. So far the coding has been going okay, but the frame rate is pretty bad... currently I'm getting low 20's on my Core 2 Duo. This is a problem since I'm creating the game for Intel's March developer competition, which is squarely aimed at netbooks packing underpowered Atom processors. Here's a screen from the game: ![www.necessarygames.com/my_games/betraveled/betraveled-fps.png][1] I am very new to Python and Pygame (this is the first thing I've used them for), and am sadly lacking in formal CS training... which is to say that I think there are probably A LOT of bad practices going on in my code, and A LOT that could be optimized. If some of you older Python hands wouldn't mind taking a look at my code and seeing if you can't find any obvious areas for optimization, I would be extremely grateful. You can download the full source code here: http://www.necessarygames.com/my_games/betraveled/betraveled_src0328.zip Compiled exe here: www.necessarygames.com/my_games/betraveled/betraveled_src0328.zip One thing I am concerned about is my event manager, which I feel may have some performance wholes in it, and another thing is my rendering... I'm pretty much just blitting everything to the screen all the time (see the render routines in my game_components.py below); I recently found out that you should only update the areas of the screen that have changed, but I'm still foggy on how that accomplished exactly... could this be a huge performance issue? Any thoughts are much appreciated! As usual, I'm happy to "tip" you for your time and energy via PayPal. Jordan Here are some bits of the source: Main.py #Remote imports import pygame from pygame.locals import * #Local imports import config import rooms from event_manager import * from events import * class RoomController(object): """Controls which room is currently active (eg Title Screen)""" def __init__(self, screen, ev_manager): self.room = None self.screen = screen self.ev_manager = ev_manager self.ev_manager.register_listener(self) self.room = self.set_room(config.room) def set_room(self, room_const): #Unregister old room from ev_manager if self.room: self.room.ev_manager.unregister_listener(self.room) self.room = None #Set new room based on const if room_const == config.TITLE_SCREEN: return rooms.TitleScreen(self.screen, self.ev_manager) elif room_const == config.GAME_MODE_ROOM: return rooms.GameModeRoom(self.screen, self.ev_manager) elif room_const == config.GAME_ROOM: return rooms.GameRoom(self.screen, self.ev_manager) elif room_const == config.HIGH_SCORES_ROOM: return rooms.HighScoresRoom(self.screen, self.ev_manager) def notify(self, event): if isinstance(event, ChangeRoomRequest): if event.game_mode: config.game_mode = event.game_mode self.room = self.set_room(event.new_room) def render(self, surface): self.room.render(surface) #Run game def main(): pygame.init() screen = pygame.display.set_mode(config.screen_size) ev_manager = EventManager() spinner = CPUSpinnerController(ev_manager) room_controller = RoomController(screen, ev_manager) pygame_event_controller = PyGameEventController(ev_manager) spinner.run() # this runs the main function if this script is called to run. # If it is imported as a module, we don't run the main function. if __name__ == "__main__": main() event_manager.py #Remote imports import pygame from pygame.locals import * #Local imports import config from events import * def debug( msg ): print "Debug Message: " + str(msg) class EventManager: #This object is responsible for coordinating most communication #between the Model, View, and Controller. def __init__(self): from weakref import WeakKeyDictionary self.listeners = WeakKeyDictionary() self.eventQueue= [] self.gui_app = None #---------------------------------------------------------------------- def register_listener(self, listener): self.listeners[listener] = 1 #---------------------------------------------------------------------- def unregister_listener(self, listener): if listener in self.listeners: del self.listeners[listener] #---------------------------------------------------------------------- def post(self, event): if isinstance(event, MouseButtonLeftEvent): debug(event.name) #NOTE: copying the list like this before iterating over it, EVERY tick, is highly inefficient, #but currently has to be done because of how new listeners are added to the queue while it is running #(eg when popping cards from a deck). Should be changed. See: http://dr0id.homepage.bluewin.ch/pygame_tutorial08.html #and search for "Watch the iteration" for listener in list(self.listeners): #NOTE: If the weakref has died, it will be #automatically removed, so we don't have #to worry about it. listener.notify(event) #------------------------------------------------------------------------------ class PyGameEventController: """...""" def __init__(self, ev_manager): self.ev_manager = ev_manager self.ev_manager.register_listener(self) self.input_freeze = False #---------------------------------------------------------------------- def notify(self, incoming_event): if isinstance(incoming_event, UserInputFreeze): self.input_freeze = True elif isinstance(incoming_event, UserInputUnFreeze): self.input_freeze = False elif isinstance(incoming_event, TickEvent): #Share some time with other processes, so we don't hog the cpu pygame.time.wait(5) #Handle Pygame Events for event in pygame.event.get(): #If this event manager has an associated PGU GUI app, notify it of the event if self.ev_manager.gui_app: self.ev_manager.gui_app.event(event) #Standard event handling for everything else ev = None if event.type == QUIT: ev = QuitEvent() elif event.type == pygame.MOUSEBUTTONDOWN and not self.input_freeze: if event.button == 1: #Button 1 pos = pygame.mouse.get_pos() ev = MouseButtonLeftEvent(pos) elif event.type == pygame.MOUSEMOTION: pos = pygame.mouse.get_pos() ev = MouseMoveEvent(pos) #Post event to event manager if ev: self.ev_manager.post(ev) #------------------------------------------------------------------------------ class CPUSpinnerController: def __init__(self, ev_manager): self.ev_manager = ev_manager self.ev_manager.register_listener(self) self.clock = pygame.time.Clock() self.cumu_time = 0 self.keep_going = True #---------------------------------------------------------------------- def run(self): if not self.keep_going: raise Exception('dead spinner') while self.keep_going: time_passed = self.clock.tick() fps = self.clock.get_fps() self.cumu_time += time_passed self.ev_manager.post(TickEvent(time_passed, fps)) if self.cumu_time >= 1000: self.cumu_time = 0 self.ev_manager.post(SecondEvent()) pygame.quit() #---------------------------------------------------------------------- def notify(self, event): if isinstance(event, QuitEvent): #this will stop the while loop from running self.keep_going = False rooms.py #Remote imports import pygame #Local imports import config import continents from game_components import * from my_gui import * from pgu import high class Room(object): def __init__(self, screen, ev_manager): self.screen = screen self.ev_manager = ev_manager self.ev_manager.register_listener(self) def notify(self, event): if isinstance(event, TickEvent): pygame.display.set_caption('FPS: ' + str(int(event.fps))) self.render(self.screen) pygame.display.update() def get_highs_table(self): fname = 'high_scores.txt' highs_table = None config.all_highs = high.Highs(fname) if config.game_mode == config.TIME_CHALLENGE: if config.difficulty == config.EASY: highs_table = config.all_highs['time_challenge_easy'] if config.difficulty == config.MED_DIF: highs_table = config.all_highs['time_challenge_med'] if config.difficulty == config.HARD: highs_table = config.all_highs['time_challenge_hard'] if config.difficulty == config.SUPER: highs_table = config.all_highs['time_challenge_super'] elif config.game_mode == config.PLAN_AHEAD: pass return highs_table class TitleScreen(Room): def __init__(self, screen, ev_manager): Room.__init__(self, screen, ev_manager) self.background = pygame.image.load('assets/images/interface/background.jpg').convert() #Initialize #--------------------------------------- self.gui_form = gui.Form() self.gui_app = gui.App(config.gui_theme) self.ev_manager.gui_app = self.gui_app c = gui.Container(align=0,valign=0) #Quit Button #--------------------------------------- b = StartGameButton(ev_manager=self.ev_manager) c.add(b, 0, 0) self.gui_app.init(c) def render(self, surface): surface.blit(self.background, (0, 0)) #GUI self.gui_app.paint(surface) class GameModeRoom(Room): def __init__(self, screen, ev_manager): Room.__init__(self, screen, ev_manager) self.background = pygame.image.load('assets/images/interface/background.jpg').convert() self.create_gui() #Create pgu gui elements def create_gui(self): #Setup #--------------------------------------- self.gui_form = gui.Form() self.gui_app = gui.App(config.gui_theme) self.ev_manager.gui_app = self.gui_app c = gui.Container(align=0,valign=-1) #Mode Relaxed Button #--------------------------------------- b = GameModeRelaxedButton(ev_manager=self.ev_manager) self.b = b print b.rect c.add(b, 0, 200) #Mode Time Challenge Button #--------------------------------------- b = TimeChallengeButton(ev_manager=self.ev_manager) self.b = b print b.rect c.add(b, 0, 250) #Mode Think Ahead Button #--------------------------------------- # b = PlanAheadButton(ev_manager=self.ev_manager) # self.b = b # print b.rect # c.add(b, 0, 300) #Initialize #--------------------------------------- self.gui_app.init(c) def render(self, surface): surface.blit(self.background, (0, 0)) #GUI self.gui_app.paint(surface) class GameRoom(Room): def __init__(self, screen, ev_manager): Room.__init__(self, screen, ev_manager) #Game mode #--------------------------------------- self.new_board_timer = None self.game_mode = config.game_mode config.current_highs = self.get_highs_table() self.highs_dialog = None self.game_over = False #Images #--------------------------------------- self.background = pygame.image.load('assets/images/interface/game screen2-1.jpg').convert() self.logo = pygame.image.load('assets/images/interface/logo_small.png').convert_alpha() self.game_over_text = pygame.image.load('assets/images/interface/text_game_over.png').convert_alpha() self.trip_complete_text = pygame.image.load('assets/images/interface/text_trip_complete.png').convert_alpha() self.zoom_game_over = None self.zoom_trip_complete = None self.fade_out = None #Text #--------------------------------------- self.font = pygame.font.Font(config.font_sans, config.interface_font_size) #Create game components #--------------------------------------- self.continent = self.set_continent(config.continent) self.board = Board(config.board_size, self.ev_manager) self.deck = Deck(self.ev_manager, self.continent) self.map = Map(self.continent) self.longest_trip = 0 #Set pos of game components #--------------------------------------- board_pos = (SCREEN_MARGIN[0], 109) self.board.set_pos(board_pos) map_pos = (config.screen_size[0] - self.map.size[0] - SCREEN_MARGIN[0], 57); self.map.set_pos(map_pos) #Trackers #--------------------------------------- self.game_clock = Chrono(self.ev_manager) self.swap_counter = 0 self.level = 0 #Create gui #--------------------------------------- self.create_gui() #Create initial board #--------------------------------------- self.new_board = self.deck.deal_new_board(self.board) self.ev_manager.post(NewBoardComplete(self.new_board)) def set_continent(self, continent_const): #Set continent based on const if continent_const == config.EUROPE: return continents.Europe() if continent_const == config.AFRICA: return continents.Africa() else: raise Exception('Continent constant not recognized') #Create pgu gui elements def create_gui(self): #Setup #--------------------------------------- self.gui_form = gui.Form() self.gui_app = gui.App(config.gui_theme) self.ev_manager.gui_app = self.gui_app c = gui.Container(align=-1,valign=-1) #Timer Progress bar #--------------------------------------- self.timer_bar = None self.time_increase = None self.minutes_left = None self.seconds_left = None self.timer_text = None if self.game_mode == config.TIME_CHALLENGE: self.time_increase = config.time_challenge_start_time self.timer_bar = gui.ProgressBar(config.time_challenge_start_time,0,config.max_time_bank,width=306) c.add(self.timer_bar, 172, 57) #Connections Progress bar #--------------------------------------- self.connections_bar = None self.connections_bar = gui.ProgressBar(0,0,config.longest_trip_needed,width=306) c.add(self.connections_bar, 172, 83) #Quit Button #--------------------------------------- b = QuitButton(ev_manager=self.ev_manager) c.add(b, 950, 20) #Generate Board Button #--------------------------------------- b = GenerateBoardButton(ev_manager=self.ev_manager, room=self) c.add(b, 500, 20) #Board Size? #--------------------------------------- bs = SetBoardSizeContainer(config.BOARD_LARGE, ev_manager=self.ev_manager, board=self.board) c.add(bs, 640, 20) #Fill Board? #--------------------------------------- t = FillBoardCheckbox(config.fill_board, ev_manager=self.ev_manager) c.add(t, 740, 20) #Darkness? #--------------------------------------- t = UseDarknessCheckbox(config.use_darkness, ev_manager=self.ev_manager) c.add(t, 840, 20) #Initialize #--------------------------------------- self.gui_app.init(c) def advance_level(self): self.level += 1 print 'Advancing to next level' print 'New level: ' + str(self.level) if self.timer_bar: print 'Time increase: ' + str(self.time_increase) self.timer_bar.value += self.time_increase self.time_increase = max(config.min_advance_time, int(self.time_increase * 0.9)) self.board = self.new_board self.new_board = None self.zoom_trip_complete = None self.game_clock.unpause() def notify(self, event): #Tick event if isinstance(event, TickEvent): pygame.display.set_caption('FPS: ' + str(int(event.fps))) self.render(self.screen) pygame.display.update() #Wait to deal new board when advancing levels if self.zoom_trip_complete and self.zoom_trip_complete.finished: self.zoom_trip_complete = None self.ev_manager.post(UnfreezeCards()) self.new_board = self.deck.deal_new_board(self.board) self.ev_manager.post(NewBoardComplete(self.new_board)) #New high score? if self.zoom_game_over and self.zoom_game_over.finished and not self.highs_dialog: if config.current_highs.check(self.level) != None: self.zoom_game_over.visible = False data = 'time:' + str(self.game_clock.time) + ',swaps:' + str(self.swap_counter) self.highs_dialog = HighScoreDialog(score=self.level, data=data, ev_manager=self.ev_manager) self.highs_dialog.open() elif not self.fade_out: self.fade_out = FadeOut(self.ev_manager, config.TITLE_SCREEN) #Second event elif isinstance(event, SecondEvent): if self.timer_bar: if not self.game_clock.paused: self.timer_bar.value -= 1 if self.timer_bar.value <= 0 and not self.game_over: self.ev_manager.post(GameOver()) self.minutes_left = self.timer_bar.value / 60 self.seconds_left = self.timer_bar.value % 60 if self.seconds_left < 10: leading_zero = '0' else: leading_zero = '' self.timer_text = ''.join(['Time Left: ', str(self.minutes_left), ':', leading_zero, str(self.seconds_left)]) #Game over elif isinstance(event, GameOver): self.game_over = True self.zoom_game_over = ZoomImage(self.ev_manager, self.game_over_text) #Trip complete event elif isinstance(event, TripComplete): print 'You did it!' self.game_clock.pause() self.zoom_trip_complete = ZoomImage(self.ev_manager, self.trip_complete_text) self.new_board_timer = Timer(self.ev_manager, 2) self.ev_manager.post(FreezeCards()) print 'Room posted newboardcomplete' #Board Refresh Complete elif isinstance(event, BoardRefreshComplete): if event.board == self.board: print 'Longest trip needed: ' + str(config.longest_trip_needed) print 'Your longest trip: ' + str(self.board.longest_trip) if self.board.longest_trip >= config.longest_trip_needed: self.ev_manager.post(TripComplete()) elif event.board == self.new_board: self.advance_level() self.connections_bar.value = self.board.longest_trip self.connection_text = ' '.join(['Connections:', str(self.board.longest_trip), '/', str(config.longest_trip_needed)]) #CardSwapComplete elif isinstance(event, CardSwapComplete): self.swap_counter += 1 elif isinstance(event, ConfigChangeBoardSize): config.board_size = event.new_size elif isinstance(event, ConfigChangeCardSize): config.card_size = event.new_size elif isinstance(event, ConfigChangeFillBoard): config.fill_board = event.new_value elif isinstance(event, ConfigChangeDarkness): config.use_darkness = event.new_value def render(self, surface): #Background surface.blit(self.background, (0, 0)) #Map self.map.render(surface) #Board self.board.render(surface) #Logo surface.blit(self.logo, (10,10)) #Text connection_text = self.font.render(self.connection_text, True, BLACK) surface.blit(connection_text, (25, 84)) if self.timer_text: timer_text = self.font.render(self.timer_text, True, BLACK) surface.blit(timer_text, (25, 64)) #GUI self.gui_app.paint(surface) if self.zoom_trip_complete: self.zoom_trip_complete.render(surface) if self.zoom_game_over: self.zoom_game_over.render(surface) if self.fade_out: self.fade_out.render(surface) class HighScoresRoom(Room): def __init__(self, screen, ev_manager): Room.__init__(self, screen, ev_manager) self.background = pygame.image.load('assets/images/interface/background.jpg').convert() #Initialize #--------------------------------------- self.gui_app = gui.App(config.gui_theme) self.ev_manager.gui_app = self.gui_app c = gui.Container(align=0,valign=0) #High Scores Table #--------------------------------------- hst = HighScoresTable() c.add(hst, 0, 0) self.gui_app.init(c) def render(self, surface): surface.blit(self.background, (0, 0)) #GUI self.gui_app.paint(surface) game_components.py #Remote imports import pygame from pygame.locals import * import random import operator from copy import copy from math import sqrt, floor #Local imports import config from events import * from matrix import Matrix from textrect import render_textrect, TextRectException from hyphen import hyphenator from textwrap2 import TextWrapper ############################## #CONSTANTS ############################## SCREEN_MARGIN = (10, 10) #Colors BLACK = (0, 0, 0) WHITE = (255, 255, 255) RED = (255, 0, 0) YELLOW = (255, 200, 0) #Directions LEFT = -1 RIGHT = 1 UP = 2 DOWN = -2 #Cards CARD_MARGIN = (10, 10) CARD_PADDING = (2, 2) #Card types BLANK = 0 COUNTRY = 1 TRANSPORT = 2 #Transport types PLANE = 0 TRAIN = 1 CAR = 2 SHIP = 3 class Timer(object): def __init__(self, ev_manager, time_left): self.ev_manager = ev_manager self.ev_manager.register_listener(self) self.time_left = time_left self.paused = False def __repr__(self): return str(self.time_left) def pause(self): self.paused = True def unpause(self): self.paused = False def notify(self, event): #Pause Event if isinstance(event, Pause): self.pause() #Unpause Event elif isinstance(event, Unpause): self.unpause() #Second Event elif isinstance(event, SecondEvent): if not self.paused: self.time_left -= 1 class Chrono(object): def __init__(self, ev_manager, start_time=0): self.ev_manager = ev_manager self.ev_manager.register_listener(self) self.time = start_time self.paused = False def __repr__(self): return str(self.time_left) def pause(self): self.paused = True def unpause(self): self.paused = False def notify(self, event): #Pause Event if isinstance(event, Pause): self.pause() #Unpause Event elif isinstance(event, Unpause): self.unpause() #Second Event elif isinstance(event, SecondEvent): if not self.paused: self.time += 1 class Map(object): def __init__(self, continent): self.map_image = pygame.image.load(continent.map).convert_alpha() self.map_text = pygame.image.load(continent.map_text).convert_alpha() self.pos = (0, 0) self.set_color() self.map_image = pygame.transform.smoothscale(self.map_image, config.map_size) self.size = self.map_image.get_size() def set_pos(self, pos): self.pos = pos def set_color(self): image_pixel_array = pygame.PixelArray(self.map_image) image_pixel_array.replace(config.GRAY1, config.COLOR1) image_pixel_array.replace(config.GRAY2, config.COLOR2) image_pixel_array.replace(config.GRAY3, config.COLOR3) image_pixel_array.replace(config.GRAY4, config.COLOR4) image_pixel_array.replace(config.GRAY5, config.COLOR5)

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  • Spring JdbcTemplate - Insert blob and return generated key

    - by itsadok
    From the Spring JDBC documentation, I know how to insert a blob using JdbcTemplate final File blobIn = new File("spring2004.jpg"); final InputStream blobIs = new FileInputStream(blobIn); jdbcTemplate.execute( "INSERT INTO lob_table (id, a_blob) VALUES (?, ?)", new AbstractLobCreatingPreparedStatementCallback(lobhandler) { protected void setValues(PreparedStatement ps, LobCreator lobCreator) throws SQLException { ps.setLong(1, 1L); lobCreator.setBlobAsBinaryStream(ps, 2, blobIs, (int)blobIn.length()); } } ); blobIs.close(); And also how to retrieve the generated key of a newly inserted row: KeyHolder keyHolder = new GeneratedKeyHolder(); jdbcTemplate.update( new PreparedStatementCreator() { public PreparedStatement createPreparedStatement(Connection connection) throws SQLException { PreparedStatement ps = connection.prepareStatement(INSERT_SQL, new String[] {"id"}); ps.setString(1, name); return ps; } }, keyHolder); // keyHolder.getKey() now contains the generated key Is there a way I could combine the two?

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  • Slow NFS and GFS2 performance

    - by Tiago
    Recently I've designed and configured a 4 node cluster for a webapp that does lots of file handling. The cluster have been broken down into 2 main roles, webserver and storage. Each role is replicated to a second server using drbd in active/passive mode. The webserver does a NFS mount of the data directory of the storage server and the latter also has a webserver running to serve files to browser clients. In the storage servers I've created a GFS2 FS to hold the data which is wired to drbd. I've chose GFS2 mainly because the announced performance and also because the volume size which has to be pretty high. Since we entered production I've been facing two problems that I think are deeply connected. First of all, the NFS mount on the webservers keeps hanging for a minute or so and then resumes normal operations. By analyzing the logs I've found out that NFS stops answering for a while and outputs the following log lines: Oct 15 18:15:42 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:44 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:46 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:47 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:47 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:47 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:48 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:48 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:51 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:52 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:52 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:55 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:55 <server hostname> kernel: nfs: server active.storage.vlan not responding, still trying Oct 15 18:15:58 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK Oct 15 18:15:59 <server hostname> kernel: nfs: server active.storage.vlan OK In this case, the hang lasted for 16 seconds but sometimes it takes 1 or 2 minutes to resume normal operations. My first guess was this was happening due to heavy load of the NFS mount and that by increasing RPCNFSDCOUNT to a higher value, this would become stable. I've increased it several times and apparently, after a while, the logs started appearing less times. The value is now on 32. After further investigating the issue, I've came across a different hang, despite the NFS messages still appear in the logs. Sometimes, the GFS2 FS simply hangs which causes both the NFS and the storage webserver to serve files. Both stay hang for a while and then they resume normal operations. This hangs leaves no trace on client side (also leaves no NFS ... not responding messages) and, on the storage side, the log system appears to be empty, even though the rsyslogd is running. The nodes connect themselves through a 10Gbps non-dedicated connection but I don't think this is an issue because the GFS2 hang is confirmed but connecting directly to the active storage server. I've been trying to solve this for a while now and I've tried different NFS configuration options, before I've found out the GFS2 FS is also hanging. The NFS mount is exported as such: /srv/data/ <ip_address>(rw,async,no_root_squash,no_all_squash,fsid=25) And the NFS client mounts with: mount -o "async,hard,intr,wsize=8192,rsize=8192" active.storage.vlan:/srv/data /srv/data After some tests, these were the configurations that yielded more performance to the cluster. I am desperate to find a solution for this as the cluster is already in production mode and I need to fix this so that this hangs won't happen in the future and I don't really know for sure what and how I should be benchmarking. What I can tell is that this is happening due to heavy loads as I have tested the cluster earlier and this problems weren't happening at all. Please tell me if you need me to provide configuration details of the cluster, and which do you want me to post. As last resort I can migrate the files to a different FS but I need some solid pointers on whether this will solve this problems as the volume size is extremely large at this point. The servers are being hosted by a third-party enterprise and I don't have physical access to them. Best regards. EDIT 1: The servers are physical servers and their specs are: Webservers: Intel Bi Xeon E5606 2x4 2.13GHz 24GB DDR3 Intel SSD 320 2 x 120GB Raid 1 Storage: Intel i5 3550 3.3GHz 16GB DDR3 12 x 2TB SATA Initially there was a VRack setup between the servers but we've upgraded one of the storage servers to have more RAM and it wasn't inside the VRack. They connect through a shared 10Gbps connection between them. Please note that it is the same connection that is used for public access. They use a single IP (using IP Failover) to connect between them and to allow for a graceful failover. NFS is therefore over a public connection and not under any private network (it was before the upgrade, were the problem still existed). The firewall was configured and tested thoroughly but I disabled it for a while to see if the problem still occurred, and it did. From my knowledge the hosting provider isn't blocking or limiting the connection between either the servers and the public domain (at least under a given bandwidth consumption threshold that hasn't been reached yet). Hope this helps figuring out the problem. EDIT 2: Relevant software versions: CentOS 2.6.32-279.9.1.el6.x86_64 nfs-utils-1.2.3-26.el6.x86_64 nfs-utils-lib-1.1.5-4.el6.x86_64 gfs2-utils-3.0.12.1-32.el6_3.1.x86_64 kmod-drbd84-8.4.2-1.el6_3.elrepo.x86_64 drbd84-utils-8.4.2-1.el6.elrepo.x86_64 DRBD configuration on storage servers: #/etc/drbd.d/storage.res resource storage { protocol C; on <server1 fqdn> { device /dev/drbd0; disk /dev/vg_storage/LV_replicated; address <server1 ip>:7788; meta-disk internal; } on <server2 fqdn> { device /dev/drbd0; disk /dev/vg_storage/LV_replicated; address <server2 ip>:7788; meta-disk internal; } } NFS Configuration in storage servers: #/etc/sysconfig/nfs RPCNFSDCOUNT=32 STATD_PORT=10002 STATD_OUTGOING_PORT=10003 MOUNTD_PORT=10004 RQUOTAD_PORT=10005 LOCKD_UDPPORT=30001 LOCKD_TCPPORT=30001 (can there be any conflict in using the same port for both LOCKD_UDPPORT and LOCKD_TCPPORT?) GFS2 configuration: # gfs2_tool gettune <mountpoint> incore_log_blocks = 1024 log_flush_secs = 60 quota_warn_period = 10 quota_quantum = 60 max_readahead = 262144 complain_secs = 10 statfs_slow = 0 quota_simul_sync = 64 statfs_quantum = 30 quota_scale = 1.0000 (1, 1) new_files_jdata = 0 Storage network environment: eth0 Link encap:Ethernet HWaddr <mac address> inet addr:<ip address> Bcast:<bcast address> Mask:<ip mask> inet6 addr: <ip address> Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:957025127 errors:0 dropped:0 overruns:0 frame:0 TX packets:1473338731 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2630984979622 (2.3 TiB) TX bytes:1648430431523 (1.4 TiB) eth0:0 Link encap:Ethernet HWaddr <mac address> inet addr:<ip failover address> Bcast:<bcast address> Mask:<ip mask> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 The IP addresses are statically assigned with the given network configurations: DEVICE="eth0" BOOTPROTO="static" HWADDR=<mac address> ONBOOT="yes" TYPE="Ethernet" IPADDR=<ip address> NETMASK=<net mask> and DEVICE="eth0:0" BOOTPROTO="static" HWADDR=<mac address> IPADDR=<ip failover> NETMASK=<net mask> ONBOOT="yes" BROADCAST=<bcast address> Hosts file to allow for a graceful NFS failover in conjunction with NFS option fsid=25 set on both storage servers: #/etc/hosts <storage ip failover address> active.storage.vlan <webserver ip failover address> active.service.vlan As you can see, packet errors are down to 0. I've also ran ping for a long time without any packet loss. MTU size is the normal 1500. As there is no VLan by now, this is the MTU used to communicate between servers. The webservers' network environment is similar. One thing I forgot to mention is that the storage servers handle ~200GB of new files each day through the NFS connection, which is a key point for me to think this is some kind of heavy load problem with either NFS or GFS2. If you need further configuration details please tell me. EDIT 3: Earlier today we had a major filesystem crash on the storage server. I couldn't get the details of the crash right away because the server stop responding. After the reboot, I noticed the filesystem was extremely slow, and I was not being able to serve a single file through either NFS or httpd, perhaps due to cache warming or so. Nevertheless, I've been monitoring the server closely and the following error came up in dmesg. The source of the problem is clearly GFS, which is waiting for a lock and ends up starving after a while. INFO: task nfsd:3029 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. nfsd D 0000000000000000 0 3029 2 0x00000080 ffff8803814f79e0 0000000000000046 0000000000000000 ffffffff8109213f ffff880434c5e148 ffff880624508d88 ffff8803814f7960 ffffffffa037253f ffff8803815c1098 ffff8803814f7fd8 000000000000fb88 ffff8803815c1098 Call Trace: [<ffffffff8109213f>] ? wake_up_bit+0x2f/0x40 [<ffffffffa037253f>] ? gfs2_holder_wake+0x1f/0x30 [gfs2] [<ffffffff814ff42e>] __mutex_lock_slowpath+0x13e/0x180 [<ffffffff814ff2cb>] mutex_lock+0x2b/0x50 [<ffffffffa0379f21>] gfs2_log_reserve+0x51/0x190 [gfs2] [<ffffffffa0390da2>] gfs2_trans_begin+0x112/0x1d0 [gfs2] [<ffffffffa0369b05>] ? gfs2_dir_check+0x35/0xe0 [gfs2] [<ffffffffa0377943>] gfs2_createi+0x1a3/0xaa0 [gfs2] [<ffffffff8121aab1>] ? avc_has_perm+0x71/0x90 [<ffffffffa0383d1e>] gfs2_create+0x7e/0x1a0 [gfs2] [<ffffffffa037783f>] ? gfs2_createi+0x9f/0xaa0 [gfs2] [<ffffffff81188cf4>] vfs_create+0xb4/0xe0 [<ffffffffa04217d6>] nfsd_create_v3+0x366/0x4c0 [nfsd] [<ffffffffa0429703>] nfsd3_proc_create+0x123/0x1b0 [nfsd] [<ffffffffa041a43e>] nfsd_dispatch+0xfe/0x240 [nfsd] [<ffffffffa025a5d4>] svc_process_common+0x344/0x640 [sunrpc] [<ffffffff810602a0>] ? default_wake_function+0x0/0x20 [<ffffffffa025ac10>] svc_process+0x110/0x160 [sunrpc] [<ffffffffa041ab62>] nfsd+0xc2/0x160 [nfsd] [<ffffffffa041aaa0>] ? nfsd+0x0/0x160 [nfsd] [<ffffffff81091de6>] kthread+0x96/0xa0 [<ffffffff8100c14a>] child_rip+0xa/0x20 [<ffffffff81091d50>] ? kthread+0x0/0xa0 [<ffffffff8100c140>] ? child_rip+0x0/0x20

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  • jQuery button click refresh of jqGrid only firing once

    - by The Matt
    I have the following jQuery code which I'm using to populate a jqGrid. It works perfectly posting to my ASP.NET MVC page on the first click of the button. My problem is, any other clicks past the first it seems to run through the jquery code when clicking the button but it never makes it to the POST page. Any ideas why? <script type="text/javascript"> $(document).ready(function() { $('#btnSubmit').click(function() { /* Refreshes the grid */ $("#list").jqGrid({ /* The controller action to get the grid data from */ url: '/CRA/AddPart', data: { partNumber: "123"}, datatype: 'json', mtype: 'GET', /* Define the headers on the grid */ colNames: ['col1', 'col2', 'col3', 'col4'], /* Define what fields the row columns come from */ colModel: [ { name: 'col1', index: 'invid', width: 290 }, { name: 'col2', index: 'invdate', width: 290 }, { name: 'col3', index: 'amount', width: 290, align: 'right' }, { name: 'col4', index: 'tax', width: 290, align: 'right'}], height: 'auto', rowNum: 10, rowList: [10, 20, 30], sortname: 'id', sortorder: "desc", viewrecords: true, imgpath: '../../Scripts/jgrid/themes/steel/images', caption: 'Core Return Authorization Contents:', cellEdit: true }); }); }); </script>

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  • How to change UINavigationBar background image - iphone sdk ?

    - by tester
    first of all, i read all "changing uinavigationbar color & backgound image", but i couldnt get over my problem. i have a tabbar app with 4 tabs. each tab has navigationcontroller. (i arranged all the objects in mainwindow.xib file in IB) in thew first tab, i wanna display 1.jpg on navigationbars background image in first view. when the use taps the tableviews row, how can i display "2.jpg" on navigationbar for second view? i also wanna display different images for each tabs. how can i solve it? thanx for all.

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  • Camera Preview App in Android throwing many errors (Nexus 4)

    - by Jagatheesan Jack
    I am trying to develop a camera app that takes a picture and saves it in a SQLite database. I get a lot of errors when executing the application. My code is as below. Any idea? CameraActivity.java private Camera mCamera; private CameraPreview mPreview; private int CAMERA_RETURN_CODE=100; private static final String TAG = "Take_Picture"; public static final int MEDIA_TYPE_IMAGE = 1; public static final int MEDIA_TYPE_VIDEO = 2; private Bitmap cameraBmp; private int MAX_FACES = 1; private Face[] faceList; public RectF[] rects; private Canvas canvas; private Drawable pictureDataDrawable; private MySQLiteHelper database; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.camera_activity); //this.requestWindowFeature(Window.FEATURE_NO_TITLE); //Create an instance of Camera mCamera = getCameraInstance(); setCameraDisplayOrientation(this, 0, mCamera); // Create our Preview view and set it as the content of our activity. mPreview = new CameraPreview(this, mCamera); FrameLayout preview = (FrameLayout) findViewById(R.id.camera_preview); preview.addView(mPreview); database = new MySQLiteHelper(getApplicationContext()); Button captureButton = (Button) findViewById(R.id.button_capture); captureButton.setOnClickListener( new View.OnClickListener() { private PictureCallback mPicture; @Override public void onClick(View v) { //mCamera.startPreview(); // get an image from the camera mCamera.takePicture(null, null, mPicture); PictureCallback mPicture = new PictureCallback() { @Override public void onPictureTaken(byte[] data, Camera camera) { try{ if (data != null) database.addEntry(data); //mCamera.startPreview(); } catch(Exception e){ Log.d(TAG, e.getMessage()); } } } ); } /** A safe way to get an instance of the Camera object. */ public static Camera getCameraInstance(){ Camera c = null; try { c = Camera.open(c.getNumberOfCameras()-1); // attempt to get a Camera instance } catch (Exception e){ // Camera is not available (in use or does not exist) } return c; // returns null if camera is unavailable } public static void setCameraDisplayOrientation(Activity activity, int cameraId, android.hardware.Camera camera) { android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo(); android.hardware.Camera.getCameraInfo(cameraId, info); int rotation = activity.getWindowManager().getDefaultDisplay() .getRotation(); int degrees = 360; /*switch (rotation) { case Surface.ROTATION_0: degrees = 0; break; case Surface.ROTATION_90: degrees = 90; break; case Surface.ROTATION_180: degrees = 180; break; case Surface.ROTATION_270: degrees = 270; break; }*/ int result; if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { result = (info.orientation + degrees) % 360; result = (360 - result) % 360; // compensate the mirror } else { // back-facing result = (info.orientation - degrees + 360) % 360; } camera.setDisplayOrientation(result); } @Override protected void onPause() { super.onPause(); //releaseMediaRecorder(); // if you are using MediaRecorder, release it first releaseCamera(); // release the camera immediately on pause event } private void releaseCamera(){ if (mCamera != null){ mCamera.release(); // release the camera for other applications mCamera = null; } } public void startFaceDetection(){ // Try starting Face Detection Camera.Parameters params = mCamera.getParameters(); // start face detection only *after* preview has started if (params.getMaxNumDetectedFaces() > 0){ // camera supports face detection, so can start it: mCamera.startFaceDetection(); } } CameraPreview.java public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback { private SurfaceHolder mHolder; private Camera mCamera; private String TAG; private List<Size> mSupportedPreviewSizes; public CameraPreview(Context context, Camera camera) { super(context); mCamera = camera; // Install a SurfaceHolder.Callback so we get notified when the // underlying surface is created and destroyed. mHolder = getHolder(); mHolder.addCallback(this); // deprecated setting, but required on Android versions prior to 3.0 mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } public void surfaceCreated(SurfaceHolder holder) { // The Surface has been created, now tell the camera where to draw the preview. try { mCamera.setPreviewDisplay(holder); mCamera.setDisplayOrientation(90); mCamera.startPreview(); } catch (IOException e) { Log.d(TAG, "Error setting camera preview: " + e.getMessage()); } } public void surfaceDestroyed(SurfaceHolder holder) { // empty. Take care of releasing the Camera preview in your activity. } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { // If your preview can change or rotate, take care of those events here. // Make sure to stop the preview before resizing or reformatting it. if (mHolder.getSurface() == null){ // preview surface does not exist return; } // stop preview before making changes try { mCamera.stopPreview(); } catch (Exception e){ // ignore: tried to stop a non-existent preview } try { mCamera.setPreviewDisplay(mHolder); mCamera.startPreview(); } catch (Exception e){ Log.d(TAG, "Error starting camera preview: " + e.getMessage()); } } public void setCamera(Camera camera) { if (mCamera == camera) { return; } mCamera = camera; if (mCamera != null) { List<Size> localSizes = mCamera.getParameters().getSupportedPreviewSizes(); mSupportedPreviewSizes = localSizes; requestLayout(); try { mCamera.setPreviewDisplay(mHolder); } catch (IOException e) { e.printStackTrace(); } /* Important: Call startPreview() to start updating the preview surface. Preview must be started before you can take a picture. */ mCamera.startPreview(); } } MySQLiteHelper.java private static final int count = 0; public static final String TABLE_IMAGE = "images"; public static final String COLUMN_ID = "_id"; public static final String PICTURE_DATA = "picture"; public static final String DATABASE_NAME = "images.db"; public static final int DATABASE_VERSION = 1; public static final String DATABASE_CREATE = "create table " + TABLE_IMAGE + "(" + COLUMN_ID + " integer primary key autoincrement, " + PICTURE_DATA + " blob not null);"; public static SQLiteDatabase database; private static String TAG = "test"; public MySQLiteHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); // TODO Auto-generated constructor stub } public MySQLiteHelper(Context context, String name, CursorFactory factory, int version, DatabaseErrorHandler errorHandler) { super(context, name, factory, version, errorHandler); // TODO Auto-generated constructor stub } @Override public void onCreate(SQLiteDatabase database) { database.execSQL(DATABASE_CREATE); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { Log.w(MySQLiteHelper.class.getName(), "Upgrading database from version " + oldVersion + " to " + newVersion + ", which will destroy all old data"); db.execSQL("DROP TABLE IF EXISTS " + TABLE_IMAGE); onCreate(db); } /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub } public void addEntry(byte [] array) throws SQLiteException{ ContentValues cv = new ContentValues(); //cv.put(KEY_NAME, name); cv.put(PICTURE_DATA, array); database.insert( TABLE_IMAGE, null, cv ); Log.w(TAG , "added " +count+ "images"); database.close(); } Errors 11-07 23:28:39.050: E/mm-libcamera2(176): PROFILE HAL: stopPreview(): E: 1383838119.067589459 11-07 23:28:39.050: E/mm-camera(201): config_MSG_ID_STOP_ACK: streamon_mask is not clear. Should not call PP_Release_HW 11-07 23:28:39.090: E/QCameraHWI(176): android::status_t android::QCameraHardwareInterface::setPreviewWindow(preview_stream_ops_t*):Received Setting NULL preview window 11-07 23:28:39.090: E/QCameraHWI(176): android::status_t android::QCameraHardwareInterface::setPreviewWindow(preview_stream_ops_t*): mPreviewWindow = 0x0x0, mStreamDisplay = 0x0xb8a9df90 11-07 23:28:39.090: E/mm-camera(201): config_shutdown_pp Camera not in streaming mode. Returning. 11-07 23:28:39.090: E/mm-camera(201): vfe_ops_deinit: E 11-07 23:28:39.120: E/qcom_sensors_hal(533): hal_process_report_ind: Bad item quality: 11 11-07 23:28:39.310: E/qcom_sensors_hal(533): hal_process_report_ind: Bad item quality: 11 11-07 23:28:39.330: E/mm-camera(201): sensor_load_chromatix: libchromatix_imx119_preview.so: 30 11-07 23:28:39.340: E/mm-camera(201): vfe_ops_init: E 11-07 23:28:39.360: E/mm-camera(201): vfe_legacy_stats_buffer_init: AEC_STATS_BUFNUM 11-07 23:28:39.360: E/mm-camera(201): vfe_legacy_stats_buffer_init: AEC_STATS_BUFNUM 11-07 23:28:39.360: E/mm-camera(201): mctl_init_stats_proc_info: snap_max_line_cnt =25776 11-07 23:28:39.440: E/QCameraHWI(176): android::status_t android::QCameraHardwareInterface::setPreviewWindow(preview_stream_ops_t*): mPreviewWindow = 0x0xb8aa1780, mStreamDisplay = 0x0xb8a9df90 11-07 23:28:39.440: E/mm-camera(201): config_proc_CAMERA_SET_INFORM_STARTPREVIEW 11-07 23:28:39.450: E/mm-camera(201): config_update_stream_info Storing stream parameters for video inst 1 as : width = 640, height 480, format = 1 inst_handle = 810081 cid = 0 11-07 23:28:39.490: E/mm-camera(201): config_update_stream_info Storing stream parameters for video inst 3 as : width = 640, height 480, format = 1 inst_handle = 830083 cid = 0 11-07 23:28:39.490: E/mm-camera(201): config_update_stream_info Storing stream parameters for video inst 4 as : width = 512, height 384, format = 1 inst_handle = 840084 cid = 0 11-07 23:28:39.500: E/mm-camera(201): config_decide_vfe_outputs: Ports Used 3, Op mode 1 11-07 23:28:39.500: E/mm-camera(201): config_decide_vfe_outputs Current mode 0 Full size streaming : Disabled 11-07 23:28:39.500: E/mm-camera(201): config_decide_vfe_outputs: Primary: 640x480, extra_pad: 0x0, Fmt: 1, Type: 1, Path: 1 11-07 23:28:39.500: E/mm-camera(201): config_decide_vfe_outputs: Secondary: 640x480, extra_pad: 0x0, Fmt: 1, Type: 3, Path: 4 11-07 23:28:39.510: E/mm-camera(201): config_update_inst_handles Updated the inst handles as 810081, 830083, 0, 0 11-07 23:28:39.631: E/mm-camera(201): sensor_load_chromatix: libchromatix_imx119_preview.so: 30 11-07 23:28:39.631: E/mm-camera(201): camif_client_set_params: camif has associated with obj mask 0x1 11-07 23:28:39.631: E/mm-camera(201): config_v2_CAMERA_START_common CAMIF_PARAMS_ADD_OBJ_ID failed -1 11-07 23:28:39.641: E/mm-camera(201): vfe_operation_config: format 3 11-07 23:28:39.641: E/mm-camera(201): vfe_operation_config:vfe_op_mode=5 11-07 23:28:39.641: E/mm-camera(201): Invalid ASD Set Params Type 11-07 23:28:39.641: E/mm-camera(201): vfe_set_bestshot: Bestshot mode not changed

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  • UITableViewCell with custom gradient background, with another gradient as highlight color

    - by Rich
    I have a custom UITableViewCell with a custom layout. I wanted a gradient background, so in my UITableViewDelegate cellForRowAtIndexPath: method, I create a CAGradientLayer and add it to the cell's layer with insertSubLayer:atIndex: (using index 0). This works just fine except for two things: Most importantly, I can't figure out how to change to a different gradient color when the row is highlighted. I have tried a couple things, but I'm just not familiar enough with the framework to get it working. Where would be the ideal place to put that code, inside the table delegate or the cell itself? Also, there's a 1px white space in between each cell in the table. I have a background color on the main view, a background color on the table, and a background color on the cell. Is there some kind of padding or spacer by default in a UITableView?

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  • WPF - simple relative path - FindAncestor

    - by user309392
    In the XAML below the ToolTip correctly binds to RelativeSource Self. However, I can't for the life of me work out how to get the TextBlock in the commented block to refer to SelectedItem.Description <Controls:RadComboBoxWithCommand x:Name="cmbPacking" Grid.Row="2" Grid.Column="5" ItemsSource="{Binding PackingComboSource}" DisplayMemberPath="DisplayMember" SelectedValuePath="SelectedValue" SelectedValue="{Binding ElementName=dataGrid1, Path=SelectedItem.PackingID}" ToolTip="{Binding RelativeSource={RelativeSource Self}, Path=SelectedItem.Description}" IsSynchronizedWithCurrentItem="True" Style="{StaticResource comboBox}"> <!-- <Controls:RadComboBoxWithCommand.ToolTip>--> <!-- <TextBlock Text="{Binding RelativeSource={RelativeSource Self}, Path=SelectedItem.Description}" TextWrapping="Wrap" Width="50"/>--> <!-- </Controls:RadComboBoxWithCommand.ToolTip>--> </Controls:RadComboBoxWithCommand> I would appreciate any suggestions Thanks - Jeremy

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  • JPA/Hibernate and MySQL transaction isolation level

    - by armandino
    I have a native query that does a batch insert into a MySQL database: String sql = "insert into t1 (a, b) select x, y from t2 where x = 'foo'"; EntityTransaction tx = entityManager.getTransaction(); try { tx.begin(); int rowCount = entityManager.createNativeQuery(sql).executeUpdate(); tx.commit(); return rowCount; } catch(Exception ex) { tx.rollback(); log.error(...); } This query causes a deadlock: while it reads from t2 with insert .. select, another process tries to insert a row into t2. I don't care about the consistency of reads from t2 when doing an insert .. select and want to set the transaction isolation level to READ_UNCOMMITTED. How do I go about setting it in JPA backed by Hibernate?

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  • SSIS Configuration error: Cannot retrieve configuration table schema

    - by Glenn M
    I'm trying to add a simple configuration to a SSIS package, of type SQL Server, so stored in a table. At the end of the wizard, when it goes to try and write a new row to the nominated table to store the configuration it fails with the error: TITLE: Microsoft Visual Studio Could not complete wizard actions. Cannot retrieve configuration table schema. (Microsoft.DataTransformationServices.Wizards) I can't seem to resolve this. The configuration connection has full permissions on the table, and it sees it and can read from it as it reports there is no current data for the filter I provide. It just wont write to it. A Google search of the error message above in quotes returns literally no hits! Any suggestions? Glenn

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  • UITableViewController and viewForHeaderInSection problems

    - by Fiona
    Hello, So I need your help please! I've created a UITableViewController: ContactDetailViewController. In IB in the nib file, I've added a view ahead of the table view and hooked it up to headerView - a UIView declared in the .h file. I've also created a view: CustomerHeaderView However when I run the code below, Its throwing an exception at the following line: headerView = [[UIView alloc] initWithNibName:@"ContactHeaderDetail" bundle:nil]; The error being thrown is: 2010-05-20 10:59:50.405 OnePageCRM[19620:20b] * -[UIView initWithNibName:bundle:]: unrecognized selector sent to instance 0x3ca4fa0 2010-05-20 10:59:50.406 OnePageCRM[19620:20b] Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '** -[UIView initWithNibName:bundle:]: unrecognized selector sent to instance 0x3ca4fa0' So any ideas anyone? Many thanks, Fiona // // ContactDetailViewController.m // OnePageCRM // // Created by Fiona Tighe on 19/05/2010. // Copyright 2010 __MyCompanyName__. All rights reserved. // #import "ContactDetailViewController.h" #import "DisplayInfoViewController.h" #import "ActionViewController.h" #define SectionHeaderHeigth 200 @implementation ContactDetailViewController @synthesize name; @synthesize date; @synthesize headerView; @synthesize nextAction; @synthesize nameLabel; @synthesize usernameLabel; @synthesize nextActionTextField; @synthesize dateLabel; @synthesize notesTableView; @synthesize contactInfoButton; @synthesize backgroundInfoButton; @synthesize actionDoneButton; - (void)viewDidLoad { [super viewDidLoad]; // Uncomment the following line to display an Edit button in the navigation bar for this view controller. // self.navigationItem.rightBarButtonItem = self.editButtonItem; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } #pragma mark Table view methods - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 2; } // Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { int numOfRows; NSLog(@"section: %d", section); switch (section){ case 0: numOfRows = 0; break; case 1: numOfRows = 3; break; default: break; } return numOfRows; } - (UIView *) tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section { if (section == 0){ headerView = [[UIView alloc] initWithNibName:@"ContactHeaderDetail" bundle:nil]; // headerView = [[UIView alloc] initWithNibName:@"ContactHeaderDetail" bundle:nil]; return headerView; }else{ return nil; } } - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{ return SectionHeaderHeigth; } // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } // Set up the cell... return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // Navigation logic may go here. Create and push another view controller. // AnotherViewController *anotherViewController = [[AnotherViewController alloc] initWithNibName:@"AnotherView" bundle:nil]; // [self.navigationController pushViewController:anotherViewController]; // [anotherViewController release]; } /* // Override to support conditional editing of the table view. - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the specified item to be editable. return YES; } */ /* // Override to support editing the table view. - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { if (editingStyle == UITableViewCellEditingStyleDelete) { // Delete the row from the data source [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES]; } else if (editingStyle == UITableViewCellEditingStyleInsert) { // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view } } */ /* // Override to support rearranging the table view. - (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath { } */ /* // Override to support conditional rearranging of the table view. - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the item to be re-orderable. return YES; } */ -(IBAction)displayContactInfo:(id)sender{ DisplayInfoViewController *divc = [[DisplayInfoViewController alloc] init]; divc.textView = self.nextAction; divc.title = @"Contact Info"; [self.navigationController pushViewController:divc animated:YES]; [divc release]; } -(IBAction)displayBackgroundInfo:(id)sender{ DisplayInfoViewController *divc = [[DisplayInfoViewController alloc] init]; divc.textView = self.nextAction; divc.title = @"Background Info"; [self.navigationController pushViewController:divc animated:YES]; [divc release]; } -(IBAction)actionDone:(id)sender{ ActionViewController *avc = [[ActionViewController alloc] init]; avc.title = @"Action"; avc.nextAction = self.nextAction; [self.navigationController pushViewController:avc animated:YES]; [avc release]; } - (void)dealloc { [name release]; [date release]; [nextAction release]; [nameLabel release]; [usernameLabel release]; [nextActionTextField release]; [dateLabel release]; [notesTableView release]; [contactInfoButton release]; [backgroundInfoButton release]; [actionDoneButton release]; [headerView release]; [super dealloc]; } @end

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  • WPF Binding to DataRow Columns

    - by Trindaz
    Hi, I've taken some sample code from http://sweux.com/blogs/smoura/index.php/wpf/2009/06/15/wpf-toolkit-datagrid-part-iv-templatecolumns-and-row-grouping/ that provides grouping of data in a WPF DataGrid. I'm modifying the example to use a DataTable instead of a Collection of entities. My problem is in translating a binding declaration {Binding Parent.IsExpanded}, which works fine where Parent is a reference to an entity that has the IsExpanded attribute, to something that will work for my weakly typed DataTable, where Parent is the name of a column and references another DataRow in the same DataTable. I've tried declarations like {Binding Parent.Items[IsExpanded]} and {Binding Parent("IsExpanded")} but none of these seem to work. How can I create a binding to the IsExpanded column of the DataRow Parent in my DataTable? Thanks in advance, Dave

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  • WPF DataGrid: Make cells readonly

    - by crauscher
    I use the following DataGrid <DataGrid Grid.Row="1" Grid.Column="1" Name="Grid" ItemsSource="{Binding}" AutoGenerateColumns="False" > <DataGrid.Columns> <DataGridTextColumn Header="Name" Width="100" Binding="{Binding Path=Name}"></DataGridTextColumn> <DataGridTextColumn Header="OldValue" Width="100" Binding="{Binding Path=OldValue}"></DataGridTextColumn> <DataGridTextColumn Header="NewValue" Width="100*" Binding="{Binding Path=NewValue}"></DataGridTextColumn> </DataGrid.Columns> </DataGrid> How can I make the cells readonly?

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  • WPF Toolkit: how to scroll datagrid to show selected item from code behind?

    - by Akash Kava
    I tried following, all of following fails on function ScrollIntoView and gives NullReferenceException. // doesnt work grid.SelectedItem = sItem; grid.ScrollIntoView(sItem); // doesnt work grid.SelectedItem = sItem; grid.Focus(); grid.CurrentColumn = grid.Columns[0]; grid.UpdateLayout(); grid.ScrollIntoView(sItem,grid.Columns[0]); // doesnt work grid.SelectedItem = sItem; grid.UpdateLayout(); grid.ScrollIntoView(sItem); The problem is, when I select row from codebehind, selection is not visible its somewhere down in bottom, unless user scrolls he feels that selection has vanished. I need to scroll datagrid to the point user can see the selection. I also tried "BringIntoView" as well but no luck.

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  • ExtJS RowEditor on Grid

    - by Ian Warner
    Hi When my users edits the Grid via RowEditor combo entries and checkboxes are annoying 1 Apple 2 Orange 3 Pear For instance with the combo above the user will select Orange then update - the Grid now instead of saying orange will display the number 2 - I would like it to show orange when a successful edit has been made. code for my combo editor : { allowBlank : false, displayField : 'team', editable : false, emptyText : 'Select Team', forceSelection : true, lazyRender : true, mode : 'remote', name : 'team', store : storeTeam, triggerAction : 'all', valueField : 'id', xtype : 'combo' } I think I read that you could send the complete row back to insert or I should listen to the update of the grid and then change the field but I need some guidance on what is best Cheers

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  • How to remove namespace from an XML Element using C#

    - by Nair
    I have an XML where I have a name space '_spreadSheetNameSapce'. In my code I have to add a new element with attribute associated with the name the space and I am doing it like the following XElement customHeading = new XElement("Row", new XAttribute(_spreadSheetNameSapce + "AutoFitHeight", "0")); It creates the XElement properly but it does insert xmlns="" entry also in the same element. I do not want that element to be created. How can I create the Xelement without the empty name space or how can I remove the namespace after the element is created? Thanks a lot.

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  • Subtotal error on calculated field in a Reporting Services Matrix

    - by peacedog
    I've got a Reporting Services report that has two row groups: Category and SubCategory. For columns it has LastYearDataA, ThisYearDataA, LastYearDataB, ThisYearDataB. I added two columns (one for A and one for B) to handle an expression calculation (to show a percentage different from LastYear to ThisYear for each). That's working. The problem comes in the SubTotal for each category. The raw numbers are totaling correctly. If SubCat1 has 10//5 for LastYear/ThisYear A, and SubCat2 has 5//1, then I get 15/5 for the totals. But I get the percentage reported in the total column as "50%", matching SubCat1. Percentages for each Subcategory are being calculated correctly (according to my backup math, anyway). But the sub total % always matches the first SubCategory in the group. Is this impossible to do in Reporting Services 2005?

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  • sqllite and populating list view, android

    - by Rob Bushway
    I am populating a text and list view from a sqllite database. The data is populating from the cursor correctly (I see the list filling with text rows), but I'm not able to see the actual text in the rows - all I see are empty rows. For the life of me, I can't figure out what I'm not able to see the data in the text rows. My layouts: Tab layout: list layout: row layout: <?xml version="1.0" encoding="utf-8"?> / My topics activity package com.gotquestions.gqapp; import com.gotquestions.gqapp.R.layout; import android.R; import android.app.ListActivity; import android.database.Cursor; import android.database.SQLException; import android.os.Bundle; import android.widget.SimpleCursorAdapter; public class TopicsActivity extends ListActivity { private DataBaseHelper myDbHelper; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // DataBaseHelper myDbHelper = new DataBaseHelper(this); myDbHelper = new DataBaseHelper(this); //test try { myDbHelper.openDataBase(); }catch(SQLException sqle){ throw sqle; } setContentView(layout.list_layout); Cursor c = myDbHelper.fetchAllTopics(); startManagingCursor(c); String[] from = new String[] { DataBaseHelper.KEY_TITLE }; int[] to = new int[] { R.id.text1 }; // Now create an array adapter and set it to display using our row SimpleCursorAdapter notes = new SimpleCursorAdapter(this, layout.notes_row, c, from, to); setListAdapter(notes); myDbHelper.close(); } } My database helper: package com.gotquestions.gqapp; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import android.content.Context; import android.database.Cursor; import android.database.SQLException; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteException; import android.database.sqlite.SQLiteOpenHelper; import android.util.Log; public class DataBaseHelper extends SQLiteOpenHelper{ //The Android's default system path of your application database. private static String DB_PATH = "/data/data/com.gotquestions.gqapp/databases/"; private static String DB_NAME = "gotquestions_database.mp3"; public static final String KEY_TITLE = "topic_title"; public static final String KEY_ARTICLE_TITLE = "article_title"; public static final String KEY_ROWID = "_id"; private static final String TAG = null; private SQLiteDatabase myDataBase; // private final Context myContext; /** * Constructor * Takes and keeps a reference of the passed context in order to access to the application assets and resources. * @param context */ public DataBaseHelper(Context context) { super(context, DB_NAME, null, 1); this.myContext = context; } /** * Creates a empty database on the system and rewrites it with your own database. * */ public void createDataBase() throws IOException{ boolean dbExist = checkDataBase(); if(dbExist){ //do nothing - database already exist }else{ //By calling this method and empty database will be created into the default system path //of your application so we are gonna be able to overwrite that database with our database. this.getReadableDatabase(); try { copyDataBase(); } catch (IOException e) { throw new Error("Error copying database"); } } } /** * Check if the database already exist to avoid re-copying the file each time you open the application. * @return true if it exists, false if it doesn't */ private boolean checkDataBase(){ SQLiteDatabase checkDB = null; try{ String myPath = DB_PATH + DB_NAME; checkDB = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY); }catch(SQLiteException e){ //database does't exist yet. } if(checkDB != null){ checkDB.close(); } return checkDB != null ? true : false; } /** * Copies your database from your local assets-folder to the just created empty database in the * system folder, from where it can be accessed and handled. * This is done by transfering bytestream. * */ private void copyDataBase() throws IOException{ //Open your local db as the input stream InputStream myInput = myContext.getAssets().open(DB_NAME); // Path to the just created empty db String outFileName = DB_PATH + DB_NAME; //Open the empty db as the output stream OutputStream myOutput = new FileOutputStream(outFileName); //transfer bytes from the inputfile to the outputfile byte[] buffer = new byte[1024]; int length; while ((length = myInput.read(buffer))>0){ myOutput.write(buffer, 0, length); } //Close the streams myOutput.flush(); myOutput.close(); myInput.close(); } public void openDataBase() throws SQLException{ //Open the database String myPath = DB_PATH + DB_NAME; myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY); } @Override public synchronized void close() { if(myDataBase != null) myDataBase.close(); super.close(); } @Override public void onCreate(SQLiteDatabase db) { // TODO Auto-generated method stub } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { Log.w(TAG, "Upgrading database from version " + oldVersion + " to " + newVersion + ", which will destroy all old data"); db.execSQL("DROP TABLE IF EXISTS titles"); onCreate(db); } public Cursor getTitle(long rowId) throws SQLException { Cursor mCursor = myDataBase.query(true, "topics", new String[] { KEY_ROWID, KEY_TITLE }, KEY_ROWID + "=" + rowId, null, null, null, null, null); if (mCursor != null) { mCursor.moveToFirst(); } return mCursor; } public Cursor fetchAllTopics() { return myDataBase.query("topics", new String[] {KEY_ROWID, KEY_TITLE}, null, null, null, null, null); }; public Cursor fetchAllFavorites() { return myDataBase.query("articles", new String[] { KEY_ROWID, KEY_ARTICLE_TITLE}, null, null, null, null, null); }; }

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  • CSS Equivalent of Table Rowspan with Fluid Height

    - by Gabe
    I'm trying to accomplish the following using CSS: <table border="1" width="300px"> <tr> <td rowspan="2">This row should equal the height (no fixed-height allowed) of the 2 rows sitting to the right.</td> <td>Here is some sample text. And some additional sample text.</td> </tr> <tr> <td>Here is some sample text. And some additional sample text.</td> </tr> </table> The examples I've seen for accomplishing this utilize fixed heights or allow the content to wrap around the left column. Is there an elegant way to accomplish this using CSS?

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  • Adding a NavigationBar to UITableViewController programmatically?

    - by Tony
    I am trying to create a uitableviewcontroller as a modal viewcontroller to edit some settings. I am creating the tableviewcontroller in code and the thing i am struggling with currently is how to correctly add a navigation bar to the controller which will have a "Done" button on it that: a) doesnt appear on top of the tableview and b) does not scroll with the tableview?? This happens when i add the navbar to the contoller with: [self.view addSubview:navigationBar]; This adds a navbar to the controller which goes on top and obscures the tables first row and also scrolls with the view? I also thought about simply using a uiviewcontroller with a separate tableview however i like the funcitonality of automatically scrolling the tableview when editing a textfield that the tableviewcontroller gives you. Just cant figure how to setup this navbar?? thx

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  • Can you use ScrollIntoView() with a PagedCollectionView in a Silverlight DataGrid?

    - by Simon
    Is it possible to scroll to a particular row (by object identity) in a Silverlight DataGrid that has an ItemsSource which is a PagedCollectionView. I am loading a list of orders that are grouped by day/status etc. I need to be able to scroll to a particular order. var pcv = new PagedCollectionView(e.Result.Orders); gridOrders.ItemsSource = pcv; Unfortunately ScrollIntoView(order) doesn't work because of the PagedCollectionView. An article on DataGrid from MSDN shows that it is possible to scroll to a group in a PagedCollectionView, but that's not really much use. foreach (CollectionViewGroup group in pcv.Groups) { dataGrid1.ScrollIntoView(group, null); dataGrid1.CollapseRowGroup(group, true); } Is there a way to do this ?

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  • postgres - remove whitespace from field?

    - by n00b0101
    I imported a bunch of data using pgloader, and am now seeing that there's a bunch of whitespace (both spaces and tabs) inside of the fields. Is there a way to quickly update the fields to remove it from the beginning, the end, and the middle? I know there's TRIM, but that won't work for me... As an added problem... I only want to remove double spaces and replace it with a single space, but there might be 5 or 6 spaces in a row, and I'd prefer not to have to rerun a replace query until they're all ok? I was looking at regex_replace, but, I'm not sure how to make certain that it removes it from the middle of a string as well...

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