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  • WPF ListView Data Binding wont synchronize

    - by Aviatrix
    my listview will display only the item that its added by the constructor and it wont add the items that i add dynamically public class PostList : ObservableCollection<PostData> { public PostList() : base() { Add(new PostData("Isak", "Dinesen")); // Add(new PostData("Victor", "Hugo")); // Add(new PostData("Jules", "Verne")); } public void AddToList (string[] data){ string username2, msg; msg = data[0]; username2 = data[1]; Add(new PostData(msg, username2)); } } public class PostData { private string Username; private string Msg; private string Avatar; private string LinkAttached; private string PicAttached; private string VideoAttached; public PostData(string msg ,string username, string avatar=null, string link=null,string pic=null ,string video=null) { this.Username = username; this.Msg = msg; this.Avatar = avatar; this.LinkAttached = link; this.PicAttached = pic; this.VideoAttached = video; } public string pMsg { get { return Msg; } set { Msg = value; } } public string pUsername { get { return Username; } set { Username = value; } } ..... ..... } Xaml <ListView x:Name="PostListView" BorderThickness="0" MinHeight="300" Background="{x:Null}" BorderBrush="{x:Null}" Foreground="{x:Null}" VerticalContentAlignment="Top" ScrollViewer.HorizontalScrollBarVisibility="Disabled" ScrollViewer.VerticalScrollBarVisibility="Disabled" IsSynchronizedWithCurrentItem="True" MinWidth="332" SelectedIndex="0" SelectionMode="Extended" AlternationCount="1" ItemsSource="{Binding Source={StaticResource PostListData}}"> <ListView.ItemTemplate> <DataTemplate> <DockPanel x:Name="SinglePost" VerticalAlignment="Top" ScrollViewer.CanContentScroll="True" ClipToBounds="True" Width="333" Height="70" d:LayoutOverrides="VerticalAlignment" d:IsEffectDisabled="True"> <StackPanel x:Name="AvatarNickHolder" Width="60"> <Label x:Name="Nick" HorizontalAlignment="Center" Margin="5,0" VerticalAlignment="Top" Height="15" Content="{Binding Path=pUsername}" FontFamily="Arial" FontSize="10.667" Padding="5,0"/> <Image x:Name="Avatar" HorizontalAlignment="Center" Margin="5,0,5,5" VerticalAlignment="Top" Width="50" Height="50" IsHitTestVisible="False" Source="1045443356IMG_0972.jpg" Stretch="UniformToFill"/> </StackPanel> <TextBlock x:Name="userPostText" Margin="0,0,5,0" VerticalAlignment="Center" FontSize="10.667" Text="{Binding Path=pMsg}" TextWrapping="Wrap"/> </DockPanel> </DataTemplate> </ListView.ItemTemplate> </ListView>

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  • Visual Studio Designer looses / ignores data

    - by Kempeth
    I'm writing my own control - a datagridviewcolumn that displays integer values as texts like the comboboxcolumn can but without showing the combobox unless the cell is edited. I'm mostly there but I have problems with the databinding. I managed to get the necessary properties to appear in the designer but every time I set the datasource and close the editor the changes are dropped. When I assign the same datasource later in code it works like a charm, I just would prefer not having to do that... public class DataGridViewLookupColumn : DataGridViewColumn { private DataGridViewLookupCell template; private Object datasource = null; private String displaymember = String.Empty; private String valuemember = String.Empty; private BindingSource bindingsource = new BindingSource(); public DataGridViewLookupColumn() : base() { this.template = new DataGridViewLookupCell(); } public override DataGridViewCell CellTemplate { get { return this.template; } set { } } [Category("Data")] [ DefaultValue(null), RefreshProperties(RefreshProperties.Repaint), AttributeProvider(typeof(IListSource)), DesignerSerializationVisibility(DesignerSerializationVisibility.Visible), ] public object DataSource { get { return this.bindingsource.DataSource; //return this.datasource; } set { this.bindingsource.DataSource = value; this.bindingsource.EndEdit(); } } [Category("Data")] [ DefaultValue(""), TypeConverterAttribute("System.Windows.Forms.Design.DataMemberFieldConverter, System.Design"), Editor("System.Windows.Forms.Design.DataMemberFieldEditor, System.Design", typeof(System.Drawing.Design.UITypeEditor)), DesignerSerializationVisibility(DesignerSerializationVisibility.Visible), ] public String DisplayMember { get { return this.displaymember; } set { this.displaymember = value; } } [Category("Data")] [ DefaultValue(""), TypeConverterAttribute("System.Windows.Forms.Design.DataMemberFieldConverter, System.Design"), Editor("System.Windows.Forms.Design.DataMemberFieldEditor, System.Design", typeof(System.Drawing.Design.UITypeEditor)), DesignerSerializationVisibility(DesignerSerializationVisibility.Visible), ] public String ValueMember { get { return this.valuemember; } set { this.valuemember = value; } } } EDIT: I experimenting I just found out that that original DataGridViewComboBoxColumn can be made to behave exactly like I wanted to. By setting the DisplayStyle to Nothing the combobox control is only shown in edit mode.

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  • VB.NET, templates, reflection, inheritance, feeling adrift

    - by brovar
    I've just made myself up a problem and am now wondering how to solve it. To begin with, I'm using some third-party components, including some calendar controls like schedule and timeline. They're used in the project classes more or less like that: Friend Class TimeBasedDataView 'some members End Class Friend Class ScheduleDataView Inherits TimeBasedDataView Public Schedule As Controls.Schedule.Schedule 'and others End Class Friend Class TimeLineDataView Inherits TimeBasedDataView Public TimeLine As Controls.TimeLine.TimeLine 'and others End Class (Hmm, code coloring fail, never mind...) Now, to allow managing the look of data being presented there are some mechanisms including so called Style Managers. A lot of code in them repeats, varying almost only with the control it maintains: Friend Class TimeLineStyleManager Private m_TimeLine As TimeLineDataView Private Sub Whatever() m_TimeLine.TimeLine.SomeProperty = SomeValue End Sub End Class Friend Class ScheduleStyleManager Private m_Schedule As ScheduleDataView Private Sub Whatever() m_Schedule.Schedule.SomeProperty = SomeValue End Sub End Class I was wondering if I could create some base class for those managers, like Friend Class TimeBasedCtrlStyleManagerBase(Of T As TimeBasedDataView) Private m_Control As T 'and others End Class which would unify these two, but I've got lost when it came to maintaining two components that have nothing in common (except their properties' names, etc.). Type reflection maybe? I'll be grateful for any advice ;)

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  • Makecert problem under Windows 7

    - by TimK
    I'm creating a certificate to use with an SslStream, and I've been doing it this way under XP: makecert -r -pe -n "CN=aName" -ss my -sr localmachine -sky exchange -sp "Microsoft RSA SChannel Cryptographic Provider" -sy 12 server.cer If I understand this correctly, this creates a certificate in server.cer, and creates a private key for it in my personal certificate store. Once I have done this, I can create a certificate object like this: X509Certificate.CreateFromCertFile(certFile); I then use it with the SSLStream, and everything works fine. Now that I have switched to Windows 7, the private key seems to be disappearing every time I restart the machine. I run a command prompt as Administrator, and execute the same makecert command shown above. This succeeds and the SSL connection works correctly. If I restart the machine, the call to AuthenticateAsServer fails with the exception "The server mode SSL must use a certificate with the associated private key." Why is the private key disappearing? What do I need to do to make it stick around?

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  • U1 music mp3 files not put into albums

    - by david
    Via the web page I can see that my files sync to U1 cloud servers. For the mp3 files, there seems to be a problem that several questions have already addressed but there does not seem to be a clear answer. If I use EasyTAG 2.1.6, I can see the ID3 tags on the local files and they seem to correctly define the artist, album title and track name. I expect it is not relevant, but I am using 10.04 with several different clients to rip the CDs. However, some mp3 files do not appear in the cloud at all and some others get assigned to Various Artist or Unknown artist. Does the music streaming (e.g. via Ipad) use the tags or the directory/file structure to assign the artist or album, and how quickly should it be expected to work? :-) Which version of ID3 tags does U1 music streaming work best with or prefer? thanks for any help David

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  • Axis value changes in barchart while swapping the phone using Achartengine

    - by Vasu
    Hi I have included the Barchart using AchartEngine API .When I swap the orientation of the screen the yaxis value is altered as same values. For eg. initially it is (0,10) , (10,25) but after swapping its changes to (0,10), (10,10) i could not understand why it is happening . And I have place string in x axis instead of numbers , I used addtextlabel method but the string is overlapped on the number . I need to display only the names. could you help on this. I have included my code here. public class Analytics extends Activity implements OnClickListener { private Button settings_btn; private RelativeLayout relativeLayout3; private boolean isClicked = false; private static final int SERIES_NR = 1; static int multiple_of_five; private GraphicalView mChartView; XYMultipleSeriesRenderer renderer; static int value=20; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.analytics); settings_btn = (Button) findViewById(R.id.settings_btn); relativeLayout3 = (RelativeLayout) findViewById(R.id.relativeLayout3); settings_btn.setOnClickListener(this); if (SharedValues.isClicked) { relativeLayout3.setVisibility(View.VISIBLE); } else { relativeLayout3.setVisibility(View.GONE); } renderer = getBarDemoRenderer(); setChartSettings(renderer); if (mChartView == null) { RelativeLayout layout = (RelativeLayout) findViewById(R.id.relativeLayout5); // mChartView= ChartFactory.getLineChartView(this, getDemoDataset(), getDemoRenderer()); mChartView = ChartFactory.getBarChartView(getApplicationContext(),getBarDemoDataset(),renderer,Type.DEFAULT); layout.addView(mChartView,new LayoutParams(LayoutParams.FILL_PARENT, 280)); } else { mChartView.repaint(); } // Intent intent = ChartFactory.getLineChartIntent(this, getDemoDataset(), getDemoRenderer()); // intent = ChartFactory.getBarChartIntent(this, getBarDemoDataset(), renderer, Type.DEFAULT); // startActivity(intent); } @Override protected void onResume() { super.onResume(); } public XYMultipleSeriesRenderer getBarDemoRenderer() { XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer(); renderer.setAxisTitleTextSize(16); renderer.setChartTitleTextSize(20); renderer.setLabelsTextSize(15); renderer.setLegendTextSize(15); // renderer.setApplyBackgroundColor(true); // renderer.setBackgroundColor(R.color.chart_bg); // renderer.setMarginsColor(R.color.settings_bg_color); // renderer.setBackgroundColor(getResources().getColor(R.color.background)); renderer.setPanEnabled(false, false); renderer.setZoomEnabled(false, false); renderer.setMargins(new int[] {0, 10, 0, 0}); SimpleSeriesRenderer r = new SimpleSeriesRenderer(); // r.setColor(Color.MAGENTA); // renderer.addSeriesRenderer(r); r = new SimpleSeriesRenderer(); r.setColor(Color.CYAN); renderer.addSeriesRenderer(r); return renderer; } private void setChartSettings(XYMultipleSeriesRenderer renderer) { // renderer.setChartTitle("Chart demo"); // renderer.setXTitle("x values"); // renderer.setYTitle("y values"); renderer.setXAxisMin(2); renderer.setMarginsColor(Color.parseColor("#00F5DA81")); renderer.addXTextLabel(1.0, "Q1"); renderer.addXTextLabel(3.0, "Q2"); renderer.addXTextLabel(5.0, "Q3"); renderer.addXTextLabel(7.0, "Q4"); renderer.addXTextLabel(9.0, "Q5"); renderer.setXAxisMax(20); renderer.setYAxisMin(0); renderer.setYAxisMax(100); renderer.setZoomEnabled(false, false); // renderer.setApplyBackgroundColor(true); // renderer.setMarginsColor(R.color.settings_bg_color); renderer.setBackgroundColor(Color.TRANSPARENT); // renderer.setBackgroundColor(R.color.chart_bg); } private XYMultipleSeriesDataset getDemoDataset() { XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset(); final int nr = 10; Random r = new Random(); for (int i = 0; i < SERIES_NR; i++) { XYSeries series = new XYSeries(""); for (int k = 0; k < nr; k++) { if(k%2==1) { series.add(0, 0); } else { series.add(k, 20); } } dataset.addSeries(series); } return dataset; } private XYMultipleSeriesRenderer getDemoRenderer() { XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer(); renderer.setAxisTitleTextSize(6); renderer.setChartTitleTextSize(10); renderer.setLabelsTextSize(5); renderer.setLegendTextSize(5); renderer.setPointSize(5f); // renderer.setMarginsColor(R.color.settings_bg_color); // renderer.setApplyBackgroundColor(true); // renderer.setBackgroundColor(R.color.chart_bg); renderer.setMargins(new int[] {20, 30, 15, 0}); XYSeriesRenderer r = new XYSeriesRenderer(); r.setColor(Color.BLUE); r.setPointStyle(PointStyle.SQUARE); r.setFillBelowLine(true); r.setFillBelowLineColor(Color.WHITE); r.setFillPoints(true); renderer.addSeriesRenderer(r); r = new XYSeriesRenderer(); r.setPointStyle(PointStyle.CIRCLE); r.setColor(Color.GREEN); r.setFillPoints(true); renderer.addSeriesRenderer(r); renderer.setAxesColor(Color.DKGRAY); renderer.setLabelsColor(Color.LTGRAY); return renderer; } private XYMultipleSeriesDataset getBarDemoDataset() { XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset(); final int nr = 10; Random r = new Random(); for (int i = 0; i < SERIES_NR; i++) { CategorySeries series = new CategorySeries("Quadrant"); for (int k = 0; k < nr; k++) { value=value+5; // multiple_of_five=k+5; // Log.i("multiple_of_five", ""+multiple_of_five); // series.add(20 +multiple_of_five ); if(k%2==1){ series.add(value ); } else { series.add(0); } } dataset.addSeries(series.toXYSeries()); } return dataset; } @Override public void onClick(View v) { if (v == settings_btn) { if (SharedValues.isClicked) { relativeLayout3.setVisibility(View.GONE); SharedValues.isClicked = false; } else { relativeLayout3.setVisibility(View.VISIBLE); SharedValues.isClicked = true; } } } }

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  • OpenWorld Day 1

    - by Antony Reynolds
    A Day in the Life of an OpenWorld Attendee Part I Lots of people are blogging insightfully about OpenWorld so I thought I would provide some non-insightful remarks to buck the trend! With 50,000 attendees I didn’t expect to bump into too many people I knew, boy was I wrong!  I walked into the registration area and immediately was hailed by a couple of customers I had worked with a few months ago.  Moving to the employee registration area in a different hall I bumped into a colleague from the UK who was also registering.  As soon as I got my badge I bumped into a friend from Ireland!  So maybe OpenWorld isn’t so big after all! First port of call was Larrys Keynote.  As always Larry was provocative and thought provoking.  His key points were announcing the Oracle cloud offering in IaaS, PaaS and SaaS, pointing out that Fusion Apps are cloud enabled and finally announcing the 12c Database, making a big play of its new multi-tenancy features.  His contention was that multi-tenancy will simplify cloud development and provide better security by providing DB level isolation for applications and customers. Next day, Monday, was my first full day at OpenWorld.  The first session I attended was on monitoring of OSB, very interesting presentation on the benefits achieved by an Illinois area telco – US Cellular.  Great discussion of why they bought the SOA Management Packs and the benefits they are already seeing from their investment in terms of improved provisioning and time to market, as well as better performance insight and assistance with capacity planning. Craig Blitz provided a nice walkthrough of where Coherence has been and where it is going. Last night I attended the BOF on Managed File Transfer where Dave Berry replayed Oracles thoughts on providing dedicated Managed File Transfer as part of the 12c SOA release.  Dave laid out the perceived requirements and solicited feedback from the audience on what if anything was missing.  He also demoed an early version of the functionality that would simplify setting up MFT in SOA Suite and make tracking activity much easier. So much for Day 1.  I also ran into scores of old friends and colleagues and had a pleasant dinner with my friend from Ireland where I caught up on the latest news from Oracle UK.  Not bad for Day 1!

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  • What is this JavaScript gibberish?

    - by W3Geek
    I am studying how to make a 2D game with JavaScript by reading open source JavaScript games and I came across this gibberish... aSpriteData = [ "}\"¹-º\"À+º\"À+º\"À+º\"¿¤À ~C_ +º\"À+º\"À+º\"À*P7²OK%¾+½u_\"À<¡a¡a¡bM@±@ª", // 0 ground "a ' ![± 7°³b£[mt<Nµ7z]~¨OR»[f_7l},tl},+}%XN²Sb[bl£[±%Y_¹ !@ $", // 1 qbox "!A % @,[] ±}°@;µn¦&X£ <$ §¤ 8}}@Prc'U#Z'H'@· ¶\"is ¤&08@£(", // 2 mario " ´!A.@H#q8¸»e-½n®@±oW:&X¢a<&bbX~# }LWP41}k¬#3¨q#1f RQ@@:4@$", // 3 mario jump " 40 q$!hWa-½n¦#_Y}a©,0#aaPw@=cmY<mq©GBagaq&@q#0§0t0¤ $", // 4 mario run "+hP_@", // 5 pipe left "¢,6< R¤", // 6 pipe right "@ & ,'+hP?>³®'©}[!»¹.¢_^¥y/pX¸#µ°=a¾½hP?>³®'©}[!»¹.¢_^ Ba a", // 7 pipe top left "@ , !] \"º £] , 8O #7a&+¢ §²!cº 9] P &O ,4 e", // 8 pipe top right " £ #! ,! P!!vawd/XO¤8¼'¤P½»¹²'9¨ \"P²Pa²(!¢5!N*(4´b!Gk(a", // 9 goomba " Xu X5 =ou!¯­¬a[Z¼q.°u#|xv ¸··@=~^H'WOJ!¯­¬a=Nu ²J <J a", // 10 coin // yui "@ & !MX ~L \"y %P *¢ 5a K w !L \"y %P *­a%¬¢ 4 a", // 11 ebox // yui "¢ ,\"²+aN!@ &7 }\"²+aN!XH # }\"²+aN!X% 8}\"²+aN!X%£@ (", // 12 bricks "} %¿¢!N° I¨²*<P%.8\"h,!Cg r¥ H³a4X¢*<P%.H#I¬ :a!u !q", // 13 block makeSpace(20) + "4a }@ }0 N( w$ }\" N! +aa", // 14 bush left " r \"²y!L%aN zPN NyN#²L}[/cy¾ N" + makeSpace(18) + "@", // 15 bush mid makeSpace(18) + "++ !R·a!x6 &+6 87L ¢6 P+ 8+ (", // 16 bush right " %©¦ +pq 7> \"³ s" + makeSpace(25) + "@", // 17 cloud bottom left "a/a_#².Q¥'¥b}8.£¨7!X\"K+5cqs%(" + makeSpace(18) + "0", // 18 cloud bottom mid "bP ¢L P+ 8%a,*a%§@ J" + makeSpace(22) + "(", // 19 cloud bottom right "", // 20 mushroom "", // koopa 16x24 "", // 22 star "", // 23 flagpole "", // 24 flag "", // 25 flagpole top " 6 ~ }a }@ }0 }( }$ }\" }! } a} @} 0} (} $} \"² $", // 26 hill slope "a } \"m %8 *P!MF 5la\"y %P" + makeSpace(18) + "(", // 27 hill mid makeSpace(30) + "%\" t!DK \"q", // 28 hill top "", // 29 castle bricks "", // 30 castle doorway bottom "", // 31 castle doorway top "", // 32 castle top "", // 33 castle top 2 "", // 34 castle window right "", // 35 castle window left "", // 36 castle flag makeSpace(19) + "8@# (9F*RSf.8 A¢$!¢040HD", // 37 goomba flat " *(!¬#q³¡[_´Yp~¡=<¥g=&'PaS²¿ Sbq*<I#*£Ld%Ryd%¼½e8H8bf#0a", // 38 mario dead " = ³ #b 'N¶ Z½Z Z½Z Z½Z Z½Z Z½Z Z½Z =[q ²@ ³ ¶ 0", // 39 coin step 1 " ?@ /q /e '¤ #³ !ºa }@ N0 ?( /e '¤ #³ ¿ _a \"", // 40 coin step 2 " / > ] º !² #¢ %a + > ] º !² #¢ 'a \"", // 41 coin step 3 " 7¢ +² *] %> \"p !Ga t¢ I² 4º *] %> \"p ¡ Oa \"" // 42 coin step 4 ], What does it do? If you want to look at the source file here it is: http://www.nihilogic.dk/labs/mario/mario.js Beware, there is more gibberish inside. I can't seem to make sense of any of it. Thank you.

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  • C# NullReferenceException when passing DataTable

    - by Timothy
    I've been struggling with a NullReferenceException and hope someone here will be able to point me in the right direction. I'm trying to create and populate a DataTable and then show the results in a DataGridView control. The basic code follows, and Execution stops with a NullReferenceException at the point where I invoke the new UpdateResults_Delegate. Oddly enough, I can trace entries.Rows.Count successfully before I return it from QueryEventEntries, so I can at least show 1) entries is not a null reference, and 2) the DataTable contains rows of data. I know I have to be doing something wrong, but I just don't know what. private delegate void UpdateResults_Delegate(DataTable entries); private void UpdateResults(DataTable entries) { dataGridView.DataSource = entries; } private void button_Click(object sender, EventArgs e) { Thread t = new Thread(new ThreadStart(PerformQuery)); t.Start(); } private void PerformQuery() { DateTime start = new DateTime(dateTimePicker1.Value.Year, dateTimePicker1.Value.Month, dateTimePicker1.Value.Day, 0, 0, 0); DateTime stop = new DateTime(dateTimePicker2.Value.Year, dateTimePicker2.Value.Month, dateTimePicker2.Value.Day, 0, 0, 0); DataTable entries = QueryEventEntries(start, stop); Invoke(new UpdateResults_Delegate(UpdateResults), entries); } private DataTable QueryEventEntries(DateTime start, DateTime stop) { DataTable entries = new DataTable(); entries.Columns.Add("colEventType", typeof(Int32)); entries.Columns.Add("colTimestamp", typeof(Int32)); entries.Columns.Add("colDetails", typeof(String)); ... conn.Open(); using (SqlDataReader r = cmd.ExecuteReader()) { while (r.Read()) { entries.Rows.Add(result.GetInt32(0), result.GetInt32(1), result.GetString(2)); } } return entries; }

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  • c# login Screen Error

    - by Kumu
    The type or namespace name 'Login' could not be found (are you missing a using directive or an assembly reference?) This error displays according to the MainMenu of my system. The following code describes the MainMenu source code of my system. Login login; is the error place which system shows, using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace FootballLeague { public partial class MainMenu : Form { FootballLeagueDatabase footballLeagueDatabase; Game game; Team team; **Login login;** public MainMenu() { InitializeComponent(); changePanel(1); } public MainMenu(FootballLeagueDatabase footballLeagueDatabaseIn) { InitializeComponent(); footballLeagueDatabase = footballLeagueDatabaseIn; } //FootballLeagueDatabase footballLeagueDatabase = new FootballLeagueDatabase(); private void Form_Loaded(object sender, EventArgs e) { } private void gameButton_Click(object sender, EventArgs e) { int option = 0; changePanel(option); } private void scoreboardButton_Click(object sender, EventArgs e) { int option = 1; changePanel(option); } private void changePanel(int optionIn) { gamePanel.Hide(); scoreboardPanel.Hide(); string title = "Football League System"; switch (optionIn) { case 0: gamePanel.Show(); this.Text = title + " - Game Menu"; break; case 1: scoreboardPanel.Show(); this.Text = title + " - Display Menu"; break; } } private void logoutButton_Click(object sender, EventArgs e) { login = new Login(); login.Show(); this.Hide(); } and I have the Form class called Login.cs and the following code displays that class. using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace FootballLeagueSystem { public partial class Login : Form { MainMenu menu; public Login() { InitializeComponent(); } private void administratorLoginButton_Click(object sender, EventArgs e) { string username1 = "08247739"; string password1 = "08247739"; if ((userNameTxt.Text.Length) == 0) MessageBox.Show("Please enter your username!"); else if ((passwordTxt.Text.Length) == 0) MessageBox.Show("Please enter your password!"); else if (userNameTxt.Text.Equals("") || passwordTxt.Text.Equals("")) MessageBox.Show("Invalid Username or Password!"); else { if (this.userNameTxt.Text == username1 && this.passwordTxt.Text == password1) MessageBox.Show("Welcome Administrator!", "Administrator Login"); menu = new MainMenu(); menu.Show(); this.Hide(); } } private void managerLoginButton_Click(object sender, EventArgs e) { { string username2 = "1111"; string password2 = "1111"; if ((userNameTxt.Text.Length) == 0) MessageBox.Show("Please enter your username!"); else if ((passwordTxt.Text.Length) == 0) MessageBox.Show("Please enter your password!"); else if (userNameTxt.Text.Equals("") && passwordTxt.Text.Equals("")) MessageBox.Show("Invalid Username or Password!"); //menu = new MainMenu(); //menu.Hide(); //this.Close(); else { if (this.userNameTxt.Text == username2 && this.passwordTxt.Text == password2) MessageBox.Show("Welcome Manager!", "Manager Login"); menu = new MainMenu(); menu.Show(); //menu.HideTab(); this.Hide(); } } } private void cancelButton_Click(object sender, EventArgs e) { this.Close(); } } } Please can you someone explain me where is the error is?

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  • Implement date picker and time picker in button click and store in edit text boxes

    - by user3597791
    Hi I am trying to implement a date picker and time picker in button click and store in edit text boxes. I have tried numerous things but since i suck at coding I cant get any of them to work. Please find my class and xml below and i would be grateful for any help import android.app.Activity; import android.content.Intent; import android.database.Cursor; import android.graphics.BitmapFactory; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.Toast; public class NewEvent extends Activity { private static int RESULT_LOAD_IMAGE = 1; private EventHandler handler; private String picturePath = ""; private String name; private String place; private String date; private String time; private String photograph; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.new_event); handler = new EventHandler(getApplicationContext()); ImageView iv_user_photo = (ImageView) findViewById(R.id.iv_user_photo); iv_user_photo.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); startActivityForResult(intent, RESULT_LOAD_IMAGE); } }); Button btn_add = (Button) findViewById(R.id.btn_add); btn_add.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { EditText et_name = (EditText) findViewById(R.id.et_name); name = et_name.getText().toString(); EditText et_place = (EditText) findViewById(R.id.et_place); place = et_place.getText().toString(); EditText et_date = (EditText) findViewById(R.id.et_date); date = et_date.getText().toString(); EditText et_time = (EditText) findViewById(R.id.et_time); time = et_time.getText().toString(); ImageView iv_photograph = (ImageView) findViewById(R.id.iv_user_photo); photograph = picturePath; Event event = new Event(); event.setName(name); event.setPlace(place); event.setDate(date); event.setTime(time); event.setPhotograph(photograph); Boolean added = handler.addEventDetails(event); if(added){ Intent intent = new Intent(NewEvent.this, MainEvent.class); startActivity(intent); }else{ Toast.makeText(getApplicationContext(), "Event data not added. Please try again", Toast.LENGTH_LONG).show(); } } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) { Uri imageUri = data.getData(); String[] filePathColumn = { MediaStore.Images.Media.DATA }; Cursor cursor = getContentResolver().query(imageUri, filePathColumn, null, null, null); cursor.moveToFirst(); int columnIndex = cursor.getColumnIndex(filePathColumn[0]); picturePath = cursor.getString(columnIndex); cursor.close(); Here is my xml: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:padding="10dp"> <TextView android:id="@+id/tv_new_event_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Add New Event" android:textAppearance="?android:attr/textAppearanceLarge" android:layout_alignParentTop="true" /> <Button android:id="@+id/btn_add" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Add Event" android:layout_alignParentBottom="true" /> <ScrollView android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@id/tv_new_event_title" android:layout_above="@id/btn_add"> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical"> <ImageView android:id="@+id/iv_user_photo" android:src="@drawable/add_user_icon" android:layout_width="100dp" android:layout_height="100dp"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Event:" /> <EditText android:id="@+id/et_name" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" android:inputType="text" > <requestFocus /> </EditText> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Place:" /> <EditText android:id="@+id/et_place" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" android:inputType="text" > <requestFocus /> </EditText> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Date:" /> <EditText android:id="@+id/et_date" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" android:inputType="date" /> <Button android:id="@+id/button" style="?android:attr/buttonStyleSmall" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button" /> <requestFocus /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Time:" /> <EditText android:id="@+id/et_time" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" android:inputType="time" /> <Button android:id="@+id/button1" style="?android:attr/buttonStyleSmall" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button1" /> <requestFocus /> </LinearLayout> </ScrollView> </RelativeLayout>

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  • Linked List Design

    - by Jim Scott
    The other day in a local .NET group I attend the following question came up: "Is it a valid interview question to ask about Linked Lists when hiring someone for a .NET development position?" Not having a computer sciense degree and being a self taught developer my response was that I did not feel it was appropriate as I in 5 years of developer with .NET had never been exposed to linked lists and did not hear any compeling reason for a use for one. However the person commented that it is a very common interview question so I decided when I left that I would do some reasearch on linked lists and see what I might be missing. I have read a number of posts on stack overflow and various google searches and decided the best way to learn about them was to write my own .NET classes to see how they worked from the inside out. Here is my class structure Single Linked List Constructor public SingleLinkedList(object value) Public Properties public bool IsTail public bool IsHead public object Value public int Index public int Count private fields not exposed to a property private SingleNode firstNode; private SingleNode lastNode; private SingleNode currentNode; Methods public void MoveToFirst() public void MoveToLast() public void Next() public void MoveTo(int index) public void Add(object value) public void InsertAt(int index, object value) public void Remove(object value) public void RemoveAt(int index) Questions I have: What are typical methods you would expect in a linked list? What is typical behaviour when adding new records? For example if I have 4 nodes and I am currently positioned in the second node and perform Add() should it be added after or before the current node? Or should it be added to the end of the list? Some of the designs I have seen explaining things seem to expose outside of the LinkedList class the Node object. In my design you simply add, get, remove values and know nothing about any node object. Should the Head and Tail be placeholder objects that are only used to define the head/tail of the list? I require my Linked List be instantiated with a value which creates the first node of the list which is essentially the head and tail of the list. Would you change that ? What should the rules be when it comes to removing nodes. Should someone be able to remove all nodes? Here is my Double Linked List Constructor public DoubleLinkedList(object value) Properties public bool IsHead public bool IsTail public object Value public int Index public int Count Private fields not exposed via property private DoubleNode currentNode; Methods public void AddFirst(object value) public void AddLast(object value) public void AddBefore(object existingValue, object value) public void AddAfter(object existingValue, object value) public void Add(int index, object value) public void Add(object value) public void Remove(int index) public void Next() public void Previous() public void MoveTo(int index)

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  • static void classes

    - by ivor
    Hello, I'm tidying up some of my code with the correct scope on some methods and attributes (I have two classes and at the moment I have a number which I just declared as public to get working, but I feel I should look into this and make private where possible, for better practice) When working in eclipse it's suggested on one method, when i change it private from public, that I can fix it by dropping off the scope so the method just says "static void" instead of public/private static void. Is this a better scenario to have nothing, rather than private or public - or is the default scope equivelant to public anyway ? Thanks

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  • PHP: Array of objects is empty when I come to retrieve one from the array

    - by Tom
    Good morning, I am trying to load rows from a database and then create objects from them and add these objects to a private array. Here are my classes: <?php include("databaseconnect.php"); class stationItem { private $code = ''; private $description = ''; public function setCode($code ){ $this->code = $code; } public function getCode(){ return $this->code; } public function setDescription($description){ $this->description = $description; } public function getDescription(){ return $this->description; } } class stationList { private $stationListing; function __construct() { connect(); $stationListing = array(); $result = mysql_query('SELECT * FROM stations'); while ($row = mysql_fetch_assoc($result)) { $station = new stationItem(); $station->setCode($row['code']); $station->setDescription($row['description']); array_push($stationListing, $station); } mysql_free_result($result); } public function getStation($index){ return $stationListing[$index]; } } ?> As you can see I am creating a stationItem object per database row (which for now has a code and description) and I then push these on to the end of my array which is held as a private variable in stationList. This is code which creates this classes and attempts to access the properties on them: $stations = new stationList(); $station = $stations->getStation(0); echo $station->getCode(); I am finding that the sizeof($stationList) at the end of the constructor is 1 but then it is zero when we come to try to get an object from the array using the index. Therefore the error that I get is: Fatal error: Call to a member function getCode() on a non-object Please can someone explain to me why this is happening? I guess I am misunderstanding how object references work in PHP5.

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  • flex actionscript not uploading file to PHP page HELP!

    - by Rees
    hello, please help! I am using actionscript 3 with flex sdk 3.5 and PHP to allow a user to upload a file -that is my goal. However, when I check my server directory for the file... NOTHING is there! For some reason SOMETHING is going wrong, even though the actionscript alerts a successful upload (and I have even tried all the event listeners for uploading errors and none are triggered). I have also tested the PHP script and it uploads SUCCESSFULLY when receiving a file from another PHP page (so i'm left to believe there is nothing wrong with my PHP). However, actionscript is NOT giving me any errors when I upload -in fact it gives me a successful event...and I know the my flex application is actually trying to send the data because when I attempt to upload a large file, it takes significantly more time to alert a "successful" event than when I upload a small file. I feel I have debugged every aspect of this code and am now spent. pleaseeee, anyone, can you tell me whats going wrong?? or at least how I can find out whats happening? -I'm using flash bugger and I'm still getting zero errors. private var fileRef:FileReference = new FileReference(); private var flyerrequest:URLRequest = new URLRequest("http://mysite.com/sub/upload_file.php"); private function uploadFile():void{ fileRef.browse(); fileRef.addEventListener(Event.SELECT, selectHandler); fileRef.addEventListener(Event.COMPLETE, completeHandler); } private function selectHandler(event:Event):void{ fileRef.upload(flyerrequest); } private function completeHandler(event:Event):void{ Alert.show("uploaded"); }

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  • SQL Azure Data Sync

    - by kaleidoscope
    The Microsoft Sync Framework Power Pack for SQL Azure contains a series of components that improve the experience of synchronizing with SQL Azure. This includes runtime components that optimize performance and simplify the process of synchronizing with the cloud. SQL Azure Data Sync allows developers and DBA's to: · Link existing on-premises data stores to SQL Azure. · Create new applications in Windows Azure without abandoning existing on-premises applications. · Extend on-premises data to remote offices, retail stores and mobile workers via the cloud. · Take Windows Azure and SQL Azure based web application offline to provide an “Outlook like” cached-mode experience. The Microsoft Sync Framework Power Pack for SQL Azure is comprised of the following: · SqlAzureSyncProvider · Sql Azure Offline Visual Studio Plug-In · SQL Azure Data Sync Tool for SQL Server · New SQL Azure Events Automated Provisioning Geeta

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  • JAXB does not call setter when unmarshalling objects

    - by Yaneeve
    Hi all, I am using JAXB 2.0 JDK 6 in order to unmarshall an XML instance into POJOs. In order to add some custom validation I have inserted a validation call into the setter of a property, yet despite it being private, it seems that the unmarshaller does not call the setter but directly modifies the private field. It is crucial to me that the custom validation occurs for this specific field every unmarshall call. What should I do? Code: @XmlAccessorType(XmlAccessType.FIELD) @XmlType(name = "LegalParams", propOrder = { "value" }) public class LegalParams { private static final Logger LOG = Logger.getLogger(LegalParams.class); @XmlTransient private LegalParamsValidator legalParamValidator; public LegalParams() { try { WebApplicationContext webApplicationContext = ContextLoader.getCurrentWebApplicationContext(); LegalParamsFactory legalParamsFactory = (LegalParamsFactory) webApplicationContext.getBean("legalParamsFactory"); HttpSession httpSession = SessionHolder.getInstance().get(); legalParamValidator = legalParamsFactory.newLegalParamsValidator(httpSession); } catch (LegalParamsException lpe) { LOG.warn("Validator related error occurred while attempting to construct a new instance of LegalParams"); throw new IllegalStateException("LegalParams creation failure", lpe); } catch (Exception e) { LOG.warn("Spring related error occurred while attempting to construct a new instance of LegalParams"); throw new IllegalStateException("LegalParams creation failure", e); } } @XmlValue private String value; /** * Gets the value of the value property. * * @return * possible object is * {@link String } * */ public String getValue() { return value; } /** * Sets the value of the value property. * * @param value * allowed object is * {@link String } * @throws TestCaseValidationException * */ public void setValue(String value) throws TestCaseValidationException { legalParamValidator.assertValid(value); this.value = value; } }

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  • Multiple Graphics2D Objects

    - by Trizicus
    I have a Graphics object of JPanel and that is working fine: import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.Rectangle2D; import javax.swing.JPanel; public class GraphicsTest extends JPanel { private Graphics2D g2d; private String state; private int x, y; @Override public void paintComponent(Graphics g) { super.paintComponent(g); g2d = (Graphics2D) g; g2d.setClip(0, 0, getWidth(), getHeight()); g2d.setColor(Color.BLACK); g2d.drawString("STATE: " + state, 5, 15); g2d.drawString("Mouse Position: " + x + ", " + y, 5, 30); g2d.setColor(Color.red); Rectangle2D r2d = new Rectangle2D.Double(x,y,10,10); g2d.draw(r2d); Test t = new Test(); super.add(t); repaint(); } public void setState(String state) { this.state = state; } public String getState() { return state; } public void setX(int x) { this.x = x; } public void setY(int y) { this.y = y; } } I was experimenting with a new Graphics component and when I instantiate a new Test and add it in GraphicsTest nothing happens. What is it that I am doing wrong? import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.Rectangle2D; import javax.swing.JComponent; public class Test extends JComponent { private Graphics2D g2d; private String state; private int x, y; @Override public void paintComponent(Graphics g) { super.paintComponent(g); g2d = (Graphics2D) g.create(); g2d.setColor(Color.GREEN); g2d.fill(new Rectangle2D.Double(60, 60, 10, 10)); repaint(); } public void setState(String state) { this.state = state; } public String getState() { return state; } public void setX(int x) { this.x = x; } public void setY(int y) { this.y = y; } } Thanks!

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  • Archbeat Link-O-Rama Top 10 Facebook Faves - June 16-22, 2013

    - by Bob Rhubart
    2,819 people now follow OTN ArchBeat on Facebook. These are the Top 10 most popular items shared there for the week of June 16-22, 2013. Getting started with Java EE 7: Hands-on in 10 minutes | Lucas Jellema Oracle ACE Director and prolific blogger Lucas Jellema offers his take on the Java EE7 release and shares tips and resources to help you on your way. Not ‘how’ but ‘why’ should you upgrade to JDeveloper & ADF 11.1.1.7.0 | Chris Muir Oracle ACE Director Tim Hall and Oracle ADF Product Manager Chris Muir collaborated on this dialog that just might help you in your decision. OTN Architect Day: Cloud Computing - July 9, Redwood Shores, CA You won't need 3D glasses to see the technical sessions at OTN Architect Day: Cloud Computing, July 9, 2013. Redwood Shores, CA. It's free! It's live! Register now! Video: Frédéric Desbiens: Bringing Java to On-Device iOS and Android Apps (QCon NYC 2013) Oracle Application Development Tools product manager Frédéric Desbiens recaps his QCon New York presentation about how Java developers can leverage existing skills to develop enterprise mobile applications. OEPE 12.1.1.2.2 with GlassFish Tools released | Peter Benedikovic Peter Benedikovic's brief post offers an overview of some of the features in the new version of Oracle Enterprise Pack for Eclipse, released in conjunction with the release of Java EE 7. Oracle Enterprise Manager 12c Configuration Best Practices (Part 2 of 3) | Bethany Lapaglia Part 2 of Beth Lapaglia's 3-part series on the most commonly implemented configuration changes to improve performance and operation of a large Enterprise Manager 12c environment focuses on recommended WebLogic Server changes. Video: Doug Clarke: Polyglot Persistence: From NoSQL to HTML5 (QCon NYC 2013) Doug Clarke, EclipseLink Project Lead and Oracle Director of Product Management gives a very condensed version of his QCon New York presentation on "Polyglot Persistence: From NoSQL to HTML5." Podcast Show Notes: DevOps, Cloud, and Role Creep - Part 2 Automation and innovation had a huge impact on the manufacturing jobs of years gone by. Is something similar happening to some IT jobs? Oracle ACE Directors Ron Batra, Basheer Khan, and Cary Millsap discuss what's happening in part 2 of this 3-part podcast. Video: Reza Rahman: Building Java HTML5/WebSocket Applications with JSR 356 (QCon NYC 2013) Java EE/GlassFish evangelist Reza Rahman talks about how WebSocket provides "the basis for a new generation of interactive and live Web applications" for mobile developers. Lessons from Fusion HCM Implementations | Tim Warner Oracle ACE Tim Warner shares summaries of the Fusion HCM implementation experiences of several companies, as detailed in presentations at the 2013 Oracle HCM Users Group Conference. Thought for the Day "If the mind really is the finest computer, then there are a lot of people out there who need to be rebooted." — Tim Bryce Source: softwarequotes.com

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  • Data won't save to SQL database, getting error "close() was never explicitly called on database"

    - by SnowLeppard
    I have a save button in the activity where the user enters data which does this: String subjectName = etName.getText().toString(); String subjectColour = etColour.getText().toString(); SQLDatabase entrySubject = new SQLDatabase(AddSubject.this); entrySubject.open(); entrySubject.createSubjectEntry(subjectName, subjectColour); entrySubject.close(); Which refers to this SQL database class: package com.***.schooltimetable; import android.content.ContentValues; import android.content.Context; import android.database.Cursor; import android.database.SQLException; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; public class SQLDatabase { public static final String KEY_SUBJECTS_ROWID = "_id"; public static final String KEY_SUBJECTNAME = "name"; public static final String KEY_COLOUR = "colour"; private static final String DATABASE_NAME = "Database"; private static final String DATABASE_TABLE_SUBJECTS = "tSubjects"; private static final int DATABASE_VERSION = 1; private DbHelper ourHelper; private final Context ourContext; private SQLiteDatabase ourDatabase; private static class DbHelper extends SQLiteOpenHelper { public DbHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); // TODO Auto-generated constructor stub } @Override public void onCreate(SQLiteDatabase db) { // TODO Auto-generated method stub db.execSQL("CREATE TABLE " + DATABASE_TABLE_SUBJECTS + " (" + KEY_SUBJECTS_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_SUBJECTNAME + " TEXT NOT NULL, " + KEY_COLOUR + " TEXT NOT NULL);"); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { // TODO Auto-generated method stub db.execSQL("DROP TABLE IF EXISTS " + DATABASE_TABLE_SUBJECTS); onCreate(db); } } public SQLDatabase(Context c) { ourContext = c; } public SQLDatabase open() throws SQLException { ourHelper = new DbHelper(ourContext); ourDatabase = ourHelper.getWritableDatabase(); return this; } public void close() { ourHelper.close(); } public long createSubjectEntry(String subjectName, String subjectColour) { // TODO Auto-generated method stub ContentValues cv = new ContentValues(); cv.put(KEY_SUBJECTNAME, subjectName); cv.put(KEY_COLOUR, subjectColour); return ourDatabase.insert(DATABASE_TABLE_SUBJECTS, null, cv); } public String[][] getSubjects() { // TODO Auto-generated method stub String[] Columns = new String[] { KEY_SUBJECTNAME, KEY_COLOUR }; Cursor c = ourDatabase.query(DATABASE_TABLE_SUBJECTS, Columns, null, null, null, null, null); String[][] Result = new String[1][]; // int iRow = c.getColumnIndex(KEY_LESSONS_ROWID); int iName = c.getColumnIndex(KEY_SUBJECTNAME); int iColour = c.getColumnIndex(KEY_COLOUR); for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) { Result[0][c.getPosition()] = c.getString(iName); Result[1][c.getPosition()] = c.getString(iColour); Settings.subjectCount = c.getPosition(); TimetableEntry.subjectCount = c.getPosition(); } return Result; } This class has other variables and other variations of the same methods for multiple tables in the database, i've cut out the irrelevant ones. I'm not sure what I need to close and where, I've got the entrySubject.close() in my activity. I used the methods for the database from the NewBoston tutorials. Can anyone see what I've done wrong, or where my problem is? Thanks.

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  • actionlistener not responding in java calculator

    - by tokee
    hi, please see calculator interface code below, from my beginners point of view the "1" should display when it's pressed but evidently i'm doing something wrong. any suggestiosn please? import java.awt.*; import javax.swing.*; import javax.swing.border.*; import java.awt.event.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; /** *A Class that operates as the framework for a calculator. *No calculations are performed in this section */ public class CalcFrame extends JPanel { private CalcEngine calc; private JFrame frame; private JTextField display; private JLabel status; /** * Constructor for objects of class GridLayoutExample */ //public CalcFrame(CalcEngine engine) //{ //frame.setVisible(true); // calc = engine; // makeFrame(); //} public CalcFrame() { makeFrame(); calc = new CalcEngine(); } class ButtonListener implements ActionListener { ButtonListener() { } public void actionPerformed(ActionEvent e) { if (e.getActionCommand().equals("1")) { System.out.println("1"); } } } /** * This allows you to quit the calculator. */ // Alows the class to quit. private void quit() { System.exit(0); } // Calls the dialog frame with the information about the project. private void showAbout() { JOptionPane.showMessageDialog(frame, "Declan Hodge and Tony O'Keefe Group Project", "About Calculator Group Project", JOptionPane.INFORMATION_MESSAGE); } // ---- swing stuff to build the frame and all its components ---- /** * The following creates a layout of the calculator frame. */ private void makeFrame() { frame = new JFrame("Group Project Calculator"); makeMenuBar(frame); JPanel contentPane = (JPanel)frame.getContentPane(); contentPane.setLayout(new BorderLayout(8, 8)); contentPane.setBorder(new EmptyBorder( 10, 10, 10, 10)); /** * Insert a text field */ display = new JTextField(8); contentPane.add(display, BorderLayout.NORTH); //Container contentPane = frame.getContentPane(); contentPane.setLayout(new GridLayout(4, 5)); JPanel buttonPanel = new JPanel(new GridLayout(4, 4)); contentPane.add(new JButton("9")); contentPane.add(new JButton("8")); contentPane.add(new JButton("7")); contentPane.add(new JButton("6")); contentPane.add(new JButton("5")); contentPane.add(new JButton("4")); contentPane.add(new JButton("3")); contentPane.add(new JButton("2")); contentPane.add(new JButton("1")); contentPane.add(new JButton("0")); contentPane.add(new JButton("+")); contentPane.add(new JButton("-")); contentPane.add(new JButton("/")); contentPane.add(new JButton("*")); contentPane.add(new JButton("=")); contentPane.add(new JButton("C")); contentPane.add(new JButton("CE")); contentPane.add(new JButton("%")); contentPane.add(new JButton("#")); //contentPane.add(buttonPanel, BorderLayout.CENTER); frame.pack(); frame.setVisible(true); } /** * Create the main frame's menu bar. * The frame that the menu bar should be added to. */ private void makeMenuBar(JFrame frame) { final int SHORTCUT_MASK = Toolkit.getDefaultToolkit().getMenuShortcutKeyMask(); JMenuBar menubar = new JMenuBar(); frame.setJMenuBar(menubar); JMenu menu; JMenuItem item; // create the File menu menu = new JMenu("File"); menubar.add(menu); // create the Quit menu with a shortcut "Q" key. item = new JMenuItem("Quit"); item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q, SHORTCUT_MASK)); item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { quit(); } }); menu.add(item); // Adds an about menu. menu = new JMenu("About"); menubar.add(menu); // Displays item = new JMenuItem("Calculator Project"); item.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { showAbout(); } }); menu.add(item); } }

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  • ArchBeat Link-o-Rama for 11/17/2011

    - by Bob Rhubart
    Building an Infrastructure Cloud with Oracle VM for x86 + Enterprise Manager 12c | Richard Rotter Richard Rotter demonstrates "how easy it could be to build a cloud infrastructure with Oracle's solution for cloud computing." Article: Social + Lean = Agile | Dave Duggal In today’s increasingly dynamic business environment, organizations must continuously adapt to survive. Change management has become a major bottleneck. Organizations’ need a practical mechanism for managing controlled variance and change in-flight to break the logjam. This paper provides a foundation for applying lean and agile principles to achieve Enterprise Agility through social collaboration. Stress Testing Java EE 6 Applications - Free Article In Free Java Magazine : Adam Bien "It is strange," says Adam Bien, "everyone is obsessed about green bars and code coverage, but testing of multi threaded behavior is widely ignored - until the applications run into massive problems." Using Access Manager to Secure Applications Deployed on WebLogic | Rene van Wijk Another great how-to post from Oracle ACE Rene van Wijk, this time involving JBoss RichFaces, Facelets, Oracle Coherence, and Oracle WebLogic Server. DOAG 2011 vs. Devoxx - Value and Attraction | Markus Eisele Oracle ACE Director Markus Eisele compares and contrasts these popular conferences with the aim of helping others decide which to attend. SOA All the Time; Architects in AZ; Clearing Info Integration hurdles SOA all the Time; Architects in AZ; Clearing Info Integration Hurdles This week on the Architect Home Page on OTN. Webcast: Oracle Business Intelligence Mobile Event Date: Wednesday, December 7, 2011 Time: 10 a.m. PT/1 p.m. ET Featuring Manan Goel (Director BI Product Marketing, Oracle) and Shailesh Shedge (Director BI and Analytics Practice, Ascentt). Webcast: Maximum Availability on Private Clouds A discussion of Oracle’s Maximum Availability Architecture, Oracle Database 11g, Oracle Exadata Database Machine, and Oracle Database appliance, featuring Margaret Hamburger (Director, Product Marketing, Oracle) and Joe Meeks (Director, Product Management, Oracle). November 30, 2011 at 10:00am PT / 1:00pm ET. Oracle Technology Network Architect Day - Phoenix, AZ Wednesday December 14, 2011, 8:30am - 5:00pm. The Ritz-Carlton, Phoenix, 2401 East Camelback Road, Phoenix, AZ 85016. Registration is free, but seating is limited.

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  • Problem with persisting a collection, that references an internal property, at design time in winfor

    - by Jules
    ETA: Jesus, I'm sick of this. This problem was specifically about persisting an interface collection but now on further testing it doesn't work for a normal collection. Here's some even simpler code: Public Class Anger End Class Public Class MyButton Inherits Button Private _Annoyance As List(Of Anger) <DesignerSerializationVisibility(DesignerSerializationVisibility.Content)> _ Public ReadOnly Property Annoyance() As List(Of Anger) Get Return _Annoyance End Get End Property Private _InternalAnger As Anger <DesignerSerializationVisibility(DesignerSerializationVisibility.Content)> _ Public ReadOnly Property InternalAnger() As Anger Get Return Me._InternalAnger End Get End Property Public Sub New() Me._Annoyance = New List(Of Anger) Me._InternalAnger = New Anger Me._Annoyance.Add(Me._InternalAnger) End Sub End Class The designer screws up the persistence code in the same way as the original problem. ---- Original Problem The easiest way to explain this problem is to show you some code: Public Interface IAmAnnoyed End Interface Public Class IAmAnnoyedCollection Inherits ObjectModel.Collection(Of IAmAnnoyed) End Class Public Class Anger Implements IAmAnnoyed End Class Public Class MyButton Inherits Button Private _Annoyance As IAmAnnoyedCollection <DesignerSerializationVisibility(DesignerSerializationVisibility.Content)> _ Public ReadOnly Property Annoyance() As IAmAnnoyedCollection Get Return _Annoyance End Get End Property Private _InternalAnger As Anger <DesignerSerializationVisibility(DesignerSerializationVisibility.Content)> _ Public ReadOnly Property InternalAnger() As Anger Get Return Me._InternalAnger End Get End Property Public Sub New() Me._Annoyance = New IAmAnnoyedCollection Me._InternalAnger = New Anger Me._Annoyance.Add(Me._InternalAnger) End Sub End Class And this is the code that the designer generates: Private Sub InitializeComponent() Dim Anger1 As Anger = New Anger Me.MyButton1 = New MyButton ' 'MyButton1 ' Me.MyButton1.Annoyance.Add(Anger1) // Should be: Me.MyButton1.Annoyance.Add(Me.MyButton1.InternalAnger) ' 'Form1 ' Me.Controls.Add(Me.MyButton1) End Sub I've added a comment to the above to show how the code should have been generated. Now, if I dispense with the interface and just have a collection of Anger, then it persists correctly. Any ideas?

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  • What's Old is New Again

    - by David Dorf
    Last night I told my son he could stream music to his tablet "from the cloud" (in this case, the Amazon Cloud).  He paused, then said, "what is the cloud?"  I replied, "a bunch of servers connected to the internet."  Apparently he had visions of something much more magnificent.  Another similar term is "big data."  These marketing terms help to quickly convey topics but are oversimplifications that are open to many interpretations.  At their core, those terms a shiny packages holding recycled ideas. I see many headlines declaring big data changes everything, but it doesn't.  Savvy retailers have been dealing with large volumes of data since the electronic cash register was invented.  But the there have a been a few changes to the landscape that make big data a topic of conversation: 1. Computing power has caught up to storage volumes. Its now possible to more thoroughly analyze the copious volumes of data retailers have been squirreling away.  CPUs are faster, sold state drives more plentiful, and new ways to store and search data are available.  My iPhone is more power than the computer used in the Apollo mission to the moon. 2. Unstructured data is everywhere.  The Web used to be where retailers published product information, but now users are generating the bulk of the content in the form of comments, videos, and "likes."  The variety of information available to retailers is huge, and it meaning difficult to discern. 3. Everything is connected.  Looking at a report from my router, there are no less than 20 active devices on my home network.  We can track the location of mobile phones, tag products with RFID, and set our thermostats (I love my Nest) from a thousand miles away.  Not only is there more data, but its arriving at higher velocity. Careful readers will note the three Vs that help define so-called big data: volume, variety, and velocity. We now have more volume, more variety, and more velocity and different technologies to deal with them.  But at the heart, the objectives are still the same: Informed decisions Accurate forecasts Improved optimizations So don't let the term "big data" throw you off the scent.  Retailers still need to execute on the basics.  But do take a fresh look at the data that's available and the new technologies to process it.  The landscape will continue to change and agile organizations will always be reevaluating their approaches.  You can just add some more weapons to the arsenal.

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