How to insert and retrive data from Discussion forum in Oracle Server 10g

Hi,
I have successfully deployed discussion forum, in Oracle app server 10g, and its working fine. Now, i have to implement a Moderator in this. but i am not getting an idea, where is the queries and specifications about the tables are given.
Please help me to to understand the work flow, as well to know, the place where queries are written.
Thanks in advance,
Dhananjay

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Before i post my questions , i think its better for me to provide you guys with my understandings first so that it easier to understand where/if i have gone wrong..
I am using Window XP and Oracle 10g
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Million thanks again for sharing.
Best Regards,
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MyGrid.Children.RemoveAt(index);
//repopulate grid with Sign Up elements
//create title
title = new TextBlock();
title.Text = "--- Sign Up 1/2 ---";
title.VerticalAlignment = VerticalAlignment.Top;
title.HorizontalAlignment = HorizontalAlignment.Center;
//field for Username
TbUN = new TextBox();
TbUN.Opacity = 0.5;
TbUN.Text = "Username";
TbUN.FontSize = 16;
TbUN.FontWeight = FontWeights.ExtraBold;
TbUN.Foreground = new SolidColorBrush(Colors.Black);
TbUN.Background = new SolidColorBrush(Colors.Transparent);
TbUN.VerticalAlignment = VerticalAlignment.Top;
TbUN.Height = 70;
TbUN.Tap += TbUN_Tap;
//field for Password
TbPW = new TextBox();
TbPW.Opacity = 0.5;
TbPW.Text = "Password";
TbPW.FontSize = 16;
TbPW.FontWeight = FontWeights.ExtraBold;
TbPW.Foreground = new SolidColorBrush(Colors.Black);
TbPW.Background = new SolidColorBrush(Colors.Transparent);
TbPW.VerticalAlignment = VerticalAlignment.Top;
TbPW.Height = 70;
TbPW.Tap += TbPW_Tap;
//field Confirm for Password
TbCPW = new TextBox();
TbCPW.Opacity = 0.5;
TbCPW.Text = "Confirm Password";
TbCPW.FontSize = 16;
TbCPW.FontWeight = FontWeights.ExtraBold;
TbCPW.Foreground = new SolidColorBrush(Colors.Black);
TbCPW.Background = new SolidColorBrush(Colors.Transparent);
TbCPW.VerticalAlignment = VerticalAlignment.Top;
TbCPW.Height = 70;
TbCPW.Tap += TbCPW_Tap;
//field for Optional Email
TbEmail = new TextBox();
TbEmail.Opacity = 0.5;
TbEmail.Text = "Email (Optional)";
TbEmail.FontSize = 16;
TbEmail.FontWeight = FontWeights.ExtraBold;
TbEmail.Foreground = new SolidColorBrush(Colors.Black);
TbEmail.Background = new SolidColorBrush(Colors.Transparent);
TbEmail.VerticalAlignment = VerticalAlignment.Top;
TbEmail.Height = 70;
TbEmail.Tap += TbEmail_Tap;
HyperlinkButton BtnGoBack = new HyperlinkButton();
BtnGoBack.Content = "<< Go Back ";
BtnGoBack.Click += new RoutedEventHandler(BtnGoBack_Tab);
BtnGoBack.VerticalAlignment = VerticalAlignment.Bottom;
BtnSignUpSubmit = new HyperlinkButton();
BtnSignUpSubmit.Content = "<< Sign Up >>";
BtnSignUpSubmit.Click += new RoutedEventHandler(BtnSignUpSubmit_Tab);
BtnSignUpSubmit.VerticalAlignment = VerticalAlignment.Bottom;
// Create Row for title
RowDefinition gridRow0 = new RowDefinition();
gridRow0.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow0);
// Create Row for Username
RowDefinition gridRow1 = new RowDefinition();
gridRow1.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow1);
//create row for password Textblock
RowDefinition gridRow2a = new RowDefinition();
gridRow2a.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow2a);
//create row for Confirm password
RowDefinition gridRow2 = new RowDefinition();
gridRow2.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow2);
//create row for email
RowDefinition gridRow3 = new RowDefinition();
gridRow3.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow3);
//create row for << Sign Up >>
RowDefinition gridRow4 = new RowDefinition();
gridRow4.Height = new GridLength(120);
MyGrid.RowDefinitions.Add(gridRow4);
//create row for << Go Back >>
RowDefinition gridRow5 = new RowDefinition();
gridRow5.Height = new GridLength(120);
MyGrid.RowDefinitions.Add(gridRow5);
Grid.SetRow(title, 0);
Grid.SetColumn(title, 0);
Grid.SetRow(TbUN, 1);
Grid.SetColumn(TbUN, 0);
Grid.SetRow(TbPW, 2);
Grid.SetColumn(TbPW, 0);
Grid.SetRow(TbCPW, 3);
Grid.SetColumn(TbCPW, 0);
Grid.SetRow(TbEmail, 4);
Grid.SetColumn(TbEmail, 0);
Grid.SetRow(BtnSignUpSubmit, 5);
Grid.SetColumn(BtnSignUpSubmit, 0);
Grid.SetRow(BtnGoBack, 6);
Grid.SetColumn(BtnGoBack, 0);
MyGrid.Children.Add(title);
MyGrid.Children.Add(TbUN);
MyGrid.Children.Add(TbPW);
MyGrid.Children.Add(TbCPW);
MyGrid.Children.Add(TbEmail);
MyGrid.Children.Add(BtnSignUpSubmit);
MyGrid.Children.Add(BtnGoBack);
BtnSignUp.Content = "<< Sign Up >>";
private bool IsUsernameValid(string str)
int d;
if (str.Length > 30)
MessageBox.Show("You may only use a maximum of 30 characters for your Username.\nThank you.");
return false;
for (d = 0; d < str.Length; d++)
if (str.Contains("~") || str.Contains("!") || str.Contains("@") || str.Contains("$")
|| str.Contains("#") || str.Contains("%") || str.Contains("|") || str.Contains("_"))
MessageBox.Show("Your Username may not contain any of the follwing characters: \n~ ! @ # $ % | _\nThank you.");
return false;
return true;
private void BtnSignUpSubmit_Tab(object sender, RoutedEventArgs e)
//show error if Username == Username
if (TbUN.Text.ToString() == "Username")
MessageBox.Show("You must fill in your Username in the Username textbox.\nThank you.");
return;
//make sure all fields are filled in
if (TbUN.Text.ToString() == "" || TbPW.Text.ToString() == "" || TbCPW.Text.ToString() == "")
MessageBox.Show("All fields must be filled in.\nThank you.");
return;
//make sure Password is the same as Confirm Password
if (TbPW.Text.CompareTo(TbCPW.Text) != 0)
MessageBox.Show("Your Password should be the same as Confirm Password.\nThank you.");
return;
//make sure Username contains valid characters
bool bValid = IsUsernameValid(TbUN.Text);
if (bValid)
bSignUp = true;
//disable textboxes
TbUN.IsEnabled = false;
TbPW.IsEnabled = false;
TbCPW.IsEnabled = false;
TbEmail.IsEnabled = false;
BtnSignUpSubmit.IsEnabled = false;
title.Text = "requesting...";
//make Post request top-server
//add parameters
string data = "username="+TbUN.Text+"&Password="+TbPW.Text;
if(TbEmail.Text.Contains("@") && TbEmail.Text.Contains("."))
data += "&email=" + TbEmail.Text;
System.Uri URL = new Uri("http://www.iclips.co.za/RegisterUsernameAndPassword.php");
WebRequest webRequest = WebRequest.Create(URL);
webRequest.Method = "POST";
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.ContentLength = data.Length;
//we first obtain an input stream to which to write the body of the HTTP POST
webRequest.BeginGetRequestStream((IAsyncResult result) =>
HttpWebRequest preq = result.AsyncState as HttpWebRequest;
if (preq != null)
Stream postStream = preq.EndGetRequestStream(result);
//guess one could just accept a byte[] [via function argument] for arbitrary data types - images, audio,...
byte[] dataStream = Encoding.UTF8.GetBytes(data);
postStream.Write(dataStream, 0, dataStream.Length);
postStream.Close();
//we can then finalize the request...
preq.BeginGetResponse((IAsyncResult final_result) =>
HttpWebRequest req = final_result.AsyncState as HttpWebRequest;
if (req != null)
try
//we call the success callback as long as we get a response stream
WebResponse response = req.EndGetResponse(final_result);
success_callback(response.GetResponseStream());
catch (WebException we)
//otherwise call the error/failure callback
error_callback(we.Message);
return;
}, preq);
}, URL);
private void error_callback(string p)
if (bSignUp)
bSignUp = false;
// Show error message
MessageBox.Show("Connection Error!\n\n" + p);
//enable input
//disable textboxes
TbUN.IsEnabled = true;
TbPW.IsEnabled = true;
TbCPW.IsEnabled = true;
TbEmail.IsEnabled = true;
BtnSignUpSubmit.IsEnabled = false;
title.Text = "try again";
private void success_callback(Stream stream)
if (bSignUp)
bSignUp = false;
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(stream);
// Read the content.
string response = reader.ReadToEnd();
// Display the content.
MessageBox.Show(response);
// Clean up the streams.
reader.Close();
private void BtnGoBack_Tab(object sender, RoutedEventArgs e)
SignIn();
private void TbEmail_Tap(object sender, System.Windows.Input.GestureEventArgs e)
TbEmail.SelectAll();
private void TbCPW_Tap(object sender, System.Windows.Input.GestureEventArgs e)
TbCPW.SelectAll();
private void SignIn_Tab(object sender, RoutedEventArgs e)
if (TbUN.Text.ToString() == "" || TbPW.Text.ToString() == "")
MessageBox.Show("Your Username or Password cannot be empty.\nThank you.");
return;
private void TbUN_Tap(object sender, System.Windows.Input.GestureEventArgs e)
TbUN.SelectAll();
un.Text = "Usernames are Case-Sensitive.\n'Iclips' is not the same as 'iClips'.";
private void TbPW_Tap(object sender, System.Windows.Input.GestureEventArgs e)
TbPW.SelectAll();
protected override void OnNavigatedTo(NavigationEventArgs e)
base.OnNavigatedTo(e);
// Initialize the video recorder.
InitializeVideoRecorder();
CameraButtons.ShutterKeyHalfPressed += OnButtonHalfPress;
// The event is fired when the shutter button receives a full press.
CameraButtons.ShutterKeyPressed += OnButtonFullPress;
// The event is fired when the shutter button is released.
CameraButtons.ShutterKeyReleased += OnButtonRelease;
protected override void OnNavigatedFrom(NavigationEventArgs e)
// Dispose of camera and media objects.
DisposeVideoPlayer();
DisposeVideoRecorder();
base.OnNavigatedFrom(e);
CameraButtons.ShutterKeyHalfPressed -= OnButtonHalfPress;
CameraButtons.ShutterKeyPressed -= OnButtonFullPress;
CameraButtons.ShutterKeyReleased -= OnButtonRelease;
// Ensure that the viewfinder is upright in LandscapeRight.
protected override void OnOrientationChanged(OrientationChangedEventArgs e)
if (vcDevice != null)
if (e.Orientation == PageOrientation.LandscapeLeft)
txtDebug.Text = "LandscapeLeft";
videoRecorderBrush.RelativeTransform =
new CompositeTransform() { CenterX = 0.5, CenterY = 0.5, Rotation = 90 };
//rotate logo
if (logo != null)
RotateTransform rt = new RotateTransform();
rt.Angle = 90;
//default rotation is around top left corner of the control,
//but you sometimes want to rotate around the center of the control
//to do that, you need to set the RenderTransFormOrigin
//of the item you're going to rotate
//I did not test this approach, maybe You're going to need to use actual coordinates
//so this bit is for information purposes only
logo.RenderTransformOrigin = new Point(0.5, 0.5);
logo.RenderTransform = rt;
//rotate sign in link
if (MyGrid != null)
RotateTransform rt = new RotateTransform();
rt.Angle = 90;
//default rotation is around top left corner of the control,
//but you sometimes want to rotate around the center of the control
//to do that, you need to set the RenderTransFormOrigin
//of the item you're going to rotate
//I did not test this approach, maybe You're going to need to use actual coordinates
//so this bit is for information purposes only
MyGrid.RenderTransformOrigin = new Point(0.5, 0.5);
MyGrid.RenderTransform = rt;
if (e.Orientation == PageOrientation.PortraitUp)
txtDebug.Text = "PortraitUp";
videoRecorderBrush.RelativeTransform =
new CompositeTransform() { CenterX = 0.5, CenterY = 0.5, Rotation = 0 };
//rotate logo
if (logo != null)
RotateTransform rt = new RotateTransform();
rt.Angle = 0;
//default rotation is around top left corner of the control,
//but you sometimes want to rotate around the center of the control
//to do that, you need to set the RenderTransFormOrigin
//of the item you're going to rotate
//I did not test this approach, maybe You're going to need to use actual coordinates
//so this bit is for information purposes only
logo.RenderTransformOrigin = new Point(0.5, 0.5);
logo.RenderTransform = rt;
//rotate sign in link
if (MyGrid != null)
RotateTransform rt = new RotateTransform();
rt.Angle = 0;
//default rotation is around top left corner of the control,
//but you sometimes want to rotate around the center of the control
//to do that, you need to set the RenderTransFormOrigin
//of the item you're going to rotate
//I did not test this approach, maybe You're going to need to use actual coordinates
//so this bit is for information purposes only
MyGrid.RenderTransformOrigin = new Point(0.5, 0.5);
MyGrid.RenderTransform = rt;
if (e.Orientation == PageOrientation.LandscapeRight)
txtDebug.Text = "LandscapeRight";
// Rotate for LandscapeRight orientation.
//videoRecorderBrush.RelativeTransform =
//new CompositeTransform() { CenterX = 0.5, CenterY = 0.5, Rotation = 180 };
//rotate logo
if (logo != null)
RotateTransform rt = new RotateTransform();
rt.Angle = -90;
//default rotation is around top left corner of the control,
//but you sometimes want to rotate around the center of the control
//to do that, you need to set the RenderTransFormOrigin
//of the item you're going to rotate
//I did not test this approach, maybe You're going to need to use actual coordinates
//so this bit is for information purposes only
logo.RenderTransformOrigin = new Point(0.5, 0.5);
logo.RenderTransform = rt;
//rotate sign in link
if (MyGrid != null)
RotateTransform rt = new RotateTransform();
rt.Angle = -90;
//default rotation is around top left corner of the control,
//but you sometimes want to rotate around the center of the control
//to do that, you need to set the RenderTransFormOrigin
//of the item you're going to rotate
//I did not test this approach, maybe You're going to need to use actual coordinates
//so this bit is for information purposes only
MyGrid.RenderTransformOrigin = new Point(0.5, 0.5);
MyGrid.RenderTransform = rt;
if (e.Orientation == PageOrientation.PortraitDown)
txtDebug.Text = "PortraitDown";
videoRecorderBrush.RelativeTransform =
new CompositeTransform() { CenterX = 0.5, CenterY = 0.5, Rotation = 270 };
// Provide auto-focus with a half button press using the hardware shutter button.
private void OnButtonHalfPress(object sender, EventArgs e)
// Focus when a capture is not in progress.
try
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "Half Button Press: Auto Focus";
catch (Exception focusError)
// Cannot focus when a capture is in progress.
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = focusError.Message;
// Capture the image with a full button press using the hardware shutter button.
private void OnButtonFullPress(object sender, EventArgs e)
// Focus when a capture is not in progress.
try
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "Full Button Press: Auto Focus";
catch (Exception focusError)
// Cannot focus when a capture is in progress.
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = focusError.Message;
// Cancel the focus if the half button press is released using the hardware shutter button.
private void OnButtonRelease(object sender, EventArgs e)
try
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "Shutter is released: Auto Focus";
catch (Exception focusError)
// Cannot focus when a capture is in progress.
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = focusError.Message;
// Update the buttons and text on the UI thread based on app state.
private void UpdateUI(ButtonState currentButtonState, string statusMessage)
// Run code on the UI thread.
Dispatcher.BeginInvoke(delegate
switch (currentButtonState)
// When the camera is not supported by the phone.
case ButtonState.CameraNotSupported:
StartRecording.IsEnabled = false;
StopPlaybackRecording.IsEnabled = false;
StartPlayback.IsEnabled = false;
PausePlayback.IsEnabled = false;
break;
// First launch of the application, so no video is available.
case ButtonState.Initialized:
StartRecording.IsEnabled = true;
StopPlaybackRecording.IsEnabled = false;
StartPlayback.IsEnabled = false;
PausePlayback.IsEnabled = false;
break;
// Ready to record, so video is available for viewing.
case ButtonState.Ready:
StartRecording.IsEnabled = true;
StopPlaybackRecording.IsEnabled = false;
StartPlayback.IsEnabled = true;
PausePlayback.IsEnabled = false;
break;
// Video recording is in progress.
case ButtonState.Recording:
StartRecording.IsEnabled = false;
StopPlaybackRecording.IsEnabled = true;
StartPlayback.IsEnabled = false;
PausePlayback.IsEnabled = false;
break;
// Video playback is in progress.
case ButtonState.Playback:
StartRecording.IsEnabled = false;
StopPlaybackRecording.IsEnabled = true;
StartPlayback.IsEnabled = false;
PausePlayback.IsEnabled = true;
break;
// Video playback has been paused.
case ButtonState.Paused:
StartRecording.IsEnabled = false;
StopPlaybackRecording.IsEnabled = true;
StartPlayback.IsEnabled = true;
PausePlayback.IsEnabled = false;
break;
default:
break;
// Display a message.
txtDebug.Text = statusMessage;
// Note the current application state.
currentAppState = currentButtonState;
public void InitializeVideoRecorder()
if (captureSource == null)
// Create the VideoRecorder objects.
captureSource = new CaptureSource();
fileSink = new FileSink();
vcDevice = CaptureDeviceConfiguration.GetDefaultVideoCaptureDevice();
// Add eventhandlers for captureSource.
captureSource.CaptureFailed += new EventHandler<ExceptionRoutedEventArgs>(OnCaptureFailed);
// Initialize the camera if it exists on the phone.
if (vcDevice != null)
// Create the VideoBrush for the viewfinder.
videoRecorderBrush = new VideoBrush();
videoRecorderBrush.SetSource(captureSource);
// Display the viewfinder image on the rectangle.
viewfinderRectangle.Fill = videoRecorderBrush;
// Start video capture and display it on the viewfinder.
captureSource.Start();
// Set the button state and the message.
UpdateUI(ButtonState.Initialized, "Tap record to start recording...");
else
// Disable buttons when the camera is not supported by the phone.
UpdateUI(ButtonState.CameraNotSupported, "A camera is not supported on this phone.");
// Set recording state: start recording.
private void StartVideoRecording()
try
// Connect fileSink to captureSource.
if (captureSource.VideoCaptureDevice != null
&& captureSource.State == CaptureState.Started)
captureSource.Stop();
// Connect the input and output of fileSink.
fileSink.CaptureSource = captureSource;
fileSink.IsolatedStorageFileName = isoVideoFileName;
// Begin recording.
if (captureSource.VideoCaptureDevice != null
&& captureSource.State == CaptureState.Stopped)
captureSource.Start();
// Set the button states and the message.
UpdateUI(ButtonState.Recording, "Recording...");
StartTimer();
// If recording fails, display an error.
catch (Exception e)
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "ERROR: " + e.Message.ToString();
//start the timer
private void StartTimer()
dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
dispatcherTimer.Interval = new TimeSpan(0, 0, 1);
dispatcherTimer.Start();
startTime = System.DateTime.Now;
private void StopTimer()
dispatcherTimer.Stop();
private void dispatcherTimer_Tick(object sender, EventArgs e)
System.DateTime now = System.DateTime.Now;
txtRecTime.Text = now.Subtract(startTime).ToString();
// Set the recording state: stop recording.
private void StopVideoRecording()
try
// Stop recording.
if (captureSource.VideoCaptureDevice != null
&& captureSource.State == CaptureState.Started)
captureSource.Stop();
// Disconnect fileSink.
fileSink.CaptureSource = null;
fileSink.IsolatedStorageFileName = null;
// Set the button states and the message.
UpdateUI(ButtonState.Stopped, "Preparing viewfinder...");
StopTimer();
StartVideoPreview();
// If stop fails, display an error.
catch (Exception e)
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "ERROR: " + e.Message.ToString();
// Set the recording state: display the video on the viewfinder.
private void StartVideoPreview()
try
// Display the video on the viewfinder.
if (captureSource.VideoCaptureDevice != null
&& captureSource.State == CaptureState.Stopped)
// Add captureSource to videoBrush.
videoRecorderBrush.SetSource(captureSource);
// Add videoBrush to the visual tree.
viewfinderRectangle.Fill = videoRecorderBrush;
captureSource.Start();
// Set the button states and the message.
UpdateUI(ButtonState.Ready, "Ready to record.");
// If preview fails, display an error.
catch (Exception e)
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "ERROR: " + e.Message.ToString();
// Start the video recording.
private void StartRecording_Click(object sender, EventArgs e)
// Avoid duplicate taps.
StartRecording.IsEnabled = false;
StartVideoRecording();
// Handle stop requests.
private void StopPlaybackRecording_Click(object sender, EventArgs e)
// Avoid duplicate taps.
StopPlaybackRecording.IsEnabled = false;
// Stop during video recording.
if (currentAppState == ButtonState.Recording)
StopVideoRecording();
// Set the button state and the message.
UpdateUI(ButtonState.NoChange, "Recording stopped.");
// Stop during video playback.
else
// Remove playback objects.
DisposeVideoPlayer();
StartVideoPreview();
// Set the button state and the message.
UpdateUI(ButtonState.NoChange, "Playback stopped.");
// Start video playback.
private void StartPlayback_Click(object sender, EventArgs e)
// Avoid duplicate taps.
StartPlayback.IsEnabled = false;
// Start video playback when the file stream exists.
if (isoVideoFile != null)
VideoPlayer.Play();
// Start the video for the first time.
else
// Stop the capture source.
captureSource.Stop();
// Remove VideoBrush from the tree.
viewfinderRectangle.Fill = null;
// Create the file stream and attach it to the MediaElement.
isoVideoFile = new IsolatedStorageFileStream(isoVideoFileName,
FileMode.Open, FileAccess.Read,
IsolatedStorageFile.GetUserStoreForApplication());
VideoPlayer.SetSource(isoVideoFile);
// Add an event handler for the end of playback.
VideoPlayer.MediaEnded += new RoutedEventHandler(VideoPlayerMediaEnded);
// Start video playback.
VideoPlayer.Play();
// Set the button state and the message.
UpdateUI(ButtonState.Playback, "Playback started.");
// Pause video playback.
private void PausePlayback_Click(object sender, EventArgs e)
// Avoid duplicate taps.
PausePlayback.IsEnabled = false;
// If mediaElement exists, pause playback.
if (VideoPlayer != null)
VideoPlayer.Pause();
// Set the button state and the message.
UpdateUI(ButtonState.Paused, "Playback paused.");
private void DisposeVideoPlayer()
if (VideoPlayer != null)
// Stop the VideoPlayer MediaElement.
VideoPlayer.Stop();
// Remove playback objects.
VideoPlayer.Source = null;
isoVideoFile = null;
// Remove the event handler.
VideoPlayer.MediaEnded -= VideoPlayerMediaEnded;
private void DisposeVideoRecorder()
if (captureSource != null)
// Stop captureSource if it is running.
if (captureSource.VideoCaptureDevice != null
&& captureSource.State == CaptureState.Started)
captureSource.Stop();
// Remove the event handler for captureSource.
captureSource.CaptureFailed -= OnCaptureFailed;
// Remove the video recording objects.
captureSource = null;
vcDevice = null;
fileSink = null;
videoRecorderBrush = null;
// If recording fails, display an error message.
private void OnCaptureFailed(object sender, ExceptionRoutedEventArgs e)
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "ERROR: " + e.ErrorException.Message.ToString();
// Display the viewfinder when playback ends.
public void VideoPlayerMediaEnded(object sender, RoutedEventArgs e)
// Remove the playback objects.
DisposeVideoPlayer();
StartVideoPreview();
public void SetScreenResolution()
w = Application.Current.Host.Content.ActualWidth;
h = Application.Current.Host.Content.ActualHeight;
setResViewF(w, h);
public void setResViewF(double width, double height)
viewfinderRectangle.Width = width;
viewfinderRectangle.Height = height;
resMI.Content = "resolution: " + width + "*" + height;
private void resMI_Click(object sender, RoutedEventArgs e)
switch (resMI.Content.ToString())
case "resolution: 176*220":
setResViewF(240, 320);
break;
case "resolution: 240*320":
setResViewF(360, 480);
break;
case "resolution: 360*480":
setResViewF(480, 800);
break;
case "resolution: 480*800":
setResViewF(1440, 720);
break;
case "resolution: 1440*720":
setResViewF(1920, 1080);
break;
case "resolution: 1920*1080":
setResViewF(176, 220);
break;
default:
setResViewF(176, 220);
break;
public void WriteToFile(string key, string value)
var Iso_settings = System.IO.IsolatedStorage.IsolatedStorageSettings.ApplicationSettings;
if (!Iso_settings.Contains(key))
Iso_settings.Add(key, value);
Iso_settings.Save();//This will save your data in isolated storage.
public string ReadFromFile(string key)
var Iso_settings = System.IO.IsolatedStorage.IsolatedStorageSettings.ApplicationSettings;
if (Iso_settings.Contains(key))
return (string)Iso_settings[key];
else
return null;
public DispatcherTimer dispatcherTimer { get; set; }
private void ToggleZoom(MediaElement media)
if (media.Stretch != Stretch.UniformToFill)
// zoom
media.Stretch = Stretch.UniformToFill;
else
// unzoom
media.Stretch = Stretch.Uniform;
BtnSignUpSubmit_Tab is the HyperLinkButton that would trigger the web request process. I need this code to work perfectly because a lot of people will use this. If you can simplify the http web request that already feels so good. Thank you.

Process Class:How to give and get data from an exe file continuously???

hi,,,
I am trying to run an executable file from my program to give it input and read its output....
And i am having problems...
The exe file takes one input and appends to it "1235" (ITS A TEST CASE).
When it is only for a single input , the program rums perfectly.. but when it is within a loop it does not
Pls help
Here is the code for that EXE file. (its in C)
#include<stdio.h>
int main()
char a[10];
int i;
int k=1235;
while(1){
scanf("%s",a);
if(a[0]=='s')
break;
printf("%s%d\n",a,k);
}Note that when i remove the loop here, my code is able to get and give it data.
My JAVA program::
import java.io.*;
public class Main {
public static void main(String[] args) throws IOException {
        try {
      String line;
      Process p = Runtime.getRuntime().exec
        ("C:\\users\\Untitled3.exe");
       BufferedWriter   out=new BufferedWriter(new OutputStreamWriter(p.getOutputStream()));
          out.write("dfgsfs\n");
          time= java.lang.System.nanoTime();
          out.flush();
      BufferedReader input =new BufferedReader(new InputStreamReader(p.getInputStream()));
     while ((line = input.readLine()) != null) {
        System.out.println(input.readLine());
      input.close();
    catch (Exception err) {
      err.printStackTrace();
}PLS HELP

I see a problem in your C code. You're not flushing stdout after you printf and that usually means java is not seeing whats your C program is printing.
removing the loop probably works because stdout is being flushed right before exit.
I used a perl script to test your stuff and found that flushing made the trick
#!/usr/bin/perl
open(OUTFILE,">>./output.txt");
$| = 1;
while (<STDIN>) {
    if (m/.*error.*/) {
        print STDERR $_;
    } else {
        print STDOUT $_;
    print OUTFILE $_;
    if (m/exit/) {
        last;
close(OUTFILE);
exit;notice "$| =1;" that autoflushes in perl (just in case you were wondering where my flush call went)
Enjoy!

How to insert and view data in a structure???

Hi to everyone!
I'm trying to append my user define table to a standard table. First i tried like this.
1. I went to the append structure in a transparent table, created one and then included my table in it. It says table cannot be appended in the database table.
2. I went to the append structure in a structure in a standard structure, created one and then included my table. Its not geeting activated.
Please help me out with the answer.
Thanks and Regards in advance.
Abdur Rafique.

Hi
You cannot append a table to Standard table.
You have to create a structure with the same structure of your table and append it to the standarda table using append structure
Then populate your table's data into the standard table data using any report (create a report to do that...)
Reward if helpful...

How to insert and retrive data from Discussion forum in Oracle Server 10g

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