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  • ListView item won't extend width to fill_parent

    - by slybloty
    I have a custom ViewGroup that inflates a ListView from an xml layout. The list item layout is inflated from another xml file. All of the views are set to fill_parent. The ListView fills its parent, but the ListView items don't. I've tried putting the ListView in a LinearLayout and assigning weight to it. Tried RelativeLayout as well. Also, I've built the ListView programmaticaly, without using the xml layout. Even changed the LayoutParams before adding the view to the ViewGroup. I've also taken in consideration these posts as well: Width of clickable area in ListView w/ onListItemClick, In Android, how can I set a ListView item's height and width?, Android Listview width prob. Any ideas to why the items don't extend to fill width? And how to extend them? MyViewGroup class: public class MyViewGroup extends ViewGroup { public MyViewGroup(Context context, AttributeSet attrs) { super(context, attrs); generateMyViewGroup(); } private void generateMyViewGroup() { ListView main = (ListView) View.inflate(getContext(), R.layout.layout_main, null); main.setAdapter(new MyAdapter(getContext())); this.addView(main); } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { this.getChildAt(0).layout(l, t, r, b); } } ListView xml layout: <?xml version="1.0" encoding="utf-8"?> <ListView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginRight="3dp" android:background="#77000000" android:cacheColorHint="#00000000" android:divider="#00000000" android:dividerHeight="0dp" android:drawSelectorOnTop="false" android:scrollbars="vertical" > </ListView> ListView item layout: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/layout_main_category" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@color/mainBackground" android:gravity="fill_horizontal|center_vertical" android:orientation="vertical" > <TextView android:id="@+id/main_category" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginLeft="8dp" android:layout_marginRight="8dp" android:paddingBottom="7dp" android:paddingLeft="20dp" android:paddingRight="5dp" android:paddingTop="20dp" android:text="test" android:textColor="@color/mainCategory" android:textSize="15sp" android:textStyle="bold" /> </LinearLayout>

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  • place and show pixel in the Cartesian plane graph in JavaFX

    - by user3671803
    I have this method to draw the Cartesian plane in JavaFX, using canvas and would like to know if it is possible to place or show the pixel: public class Grafics extends StackPane { private Canvas canvas; public void Grafics(){ GridPane grid = new GridPane(); grid.setPadding(new Insets(5)); grid.setHgap(10); grid.setVgap(10); canvas = new Canvas(); canvas.setHeight(500); canvas.setWidth(700); GridPane.setHalignment(canvas, HPos.CENTER); grid.add(canvas, 0, 2); GraphicsContext gc = canvas.getGraphicsContext2D(); gc.setFill(Color.BLACK); gc.fillRect(0, 0, canvas.getWidth(), canvas.getHeight()); gc.setFill(Color.WHITE); gc.fillRect(1, 1, canvas.getWidth() - 2, canvas.getHeight() - 2); drawAxesXY(gc); //call the method drawAxes getChildren().addAll(grid);// add an gridpane in stackpane } private void drawAxesXY(GraphicsContext gc1) { PixelWriter pixelWriter = canvas.getGraphicsContext2D().getPixelWriter(); gc1.setFill(Color.WHITE); gc1.setStroke(Color.BLACK); gc1.setLineWidth(1.5); gc1.strokeText("Y", 350, 30); gc1.scale(1, 1); gc1.translate((canvas.getHeight() / 50) - (canvas.getWidth() / 10), canvas.getHeight() / 50); gc1.strokeLine(canvas.getWidth() - 300, canvas.getWidth() - 300, canvas.getHeight() - 100, canvas.getHeight() / 30); pixelWriter.setColor(300, 300, Color.RED); gc1.strokeText("X", 620, 220); gc1.translate(canvas.getWidth() - (canvas.getHeight() / 10), -220); gc1.rotate(90.0); gc1.setFill(Color.WHITE); gc1.setStroke(Color.RED); gc1.setLineWidth(1.5); gc1.strokeLine(canvas.getWidth() - 250, canvas.getWidth() - 250, canvas.getHeight() - 50, canvas.getHeight() / 30); pixelWriter.setColor(620, 220, Color.RED); } } I put a line black and the other red http://postimg.org/image/tewjhco4z/ and I wanna know if is possible to place or show the pixel in Figure like this http://postimg.org/image/98k9mvnb3/

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  • Function doesn't work, but it must work

    - by Artem
    private void Main_OnLayoutUpdated(object sender, EventArgs e) { label1.Content = Classes.Global.X.ToString(); Classes.Global.PositionChanged(this); } PositionChanged writes to X new x-position of window. It works, but as soon as I delete label1 it stops working. No errors.

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  • Can't Call resignFirstResponder from textFieldDidBeginEditing ? (iPhone)

    - by Chris
    [myTextField becomeFirstResponder]; [myTextField resignFirstResonder]; When I do this -(BOOL)textFieldShouldReturn:(UITextField *)textField , it works. But when I use the same code inside -(void)textFieldDidBeginEditing:(UITextField *)textField , it does not work. I am certain that it is calling textFieldDidBeginEditing. I have an NSLog inside the method and it is being called.

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  • How to convert between Enums where values share the same names ?

    - by Ross Watson
    Hi, if I want to convert between two Enum types, the values of which, I hope, have the same names, is there a neat way, or do I have to do it like this...? enum colours_a { red, blue, green } enum colours_b { yellow, red, blue, green } static void Main(string[] args) { colours_a a = colours_a.red; colours_b b; //b = a; b = (colours_b)Enum.Parse(typeof(colours_b), a.ToString()); } Thanks, Ross

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  • iPhone app with tab bar and navigation bar as peers

    - by Mac
    I'm trying to write an application that uses a navigation bar and tab bar in what (I'm gathering) is an unusual manner. Basically, I've got several "pages" ("home", "settings", etc) that each have their own tab. I'd also like to have it so that the "home" page is the root view of the navigation bar, and the other pages are the second-level views of the navigation bar. That is, I should be able to navigate to any page by clicking the appropriate tab bar item, and should be able to navigate to the home page from any other page by clicking the navigation bar's back button. Currently, I have a UINavigationBar (through a UINavigationController) and a UITabBar (through a UITabController) as children of a UIView. The various pages' view controllers are set as the tab controller's viewControllers property, and the home page's controller is also set as the navigation controller's root view. Each page view's tag is set to its index in the tab control. I have the following logic in the tab controller's didSelectViewController delegate method: - (void) tabBarController:(UITabBarController*) tabBarController didSelectViewController:(UIViewController*) viewController { if ([navController.viewControllers count] > 1) [navController popViewControllerAnimated:NO]; [navController pushViewController:viewController animated:YES]; } Also, in the navigation controller's didShowViewController delegate method, I have the following code: - (void) navigationController:(UINavigationController *) navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated { tabController.selectedIndex = viewController.view.tag; } The problem that's occurring is that when I run this, the navigation bar, tab bar and home page all display ok, but the tab bar will not respond to input - I cannot select a different tab. I gather it's more usual to have the tab bar as the child of the navigation control, or vice versa. This doesn't seem to fit my approach, because I don't want to have to individually create the subordinate control each time a change occurs in the parent control - eg: recreate tab bar each time the navigation bar changes. Does anyone have suggestions as to what's wrong and how to fix it? I'm probably missing something obvious, but whatever it is I can't seem to find it. Thanks! EDIT: I'm guessing it has something to do with both controller's trying to have ownership of the page controller, but I can't for the life of me figure out a way around it.

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  • OnFinishInflate inside ListActivity

    - by zegnus
    I have a main class filled with a cursor adapter: public class MainMenu extends ListActivity{ ... private void updateData(){ ... SimpleAdapter notes = new SimpleAdapter(this, array, R.layout.row_task, from, to); setListAdapter(notes); } } I need to know when this list has finnished to inflate it, so I've discovered this methods: ListView.onFinishInflate()... But I have no idea how to override it inside my code. Any idea?

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  • How to load entities into private collections using the entity framework

    - by Anton P
    I have a POCO domain model which is wired up to the entity framework using the new ObjectContext class. public class Product { private ICollection<Photo> _photos; public Product() { _photos = new Collection<Photo>(); } public int Id { get; set; } public string Name { get; set; } public virtual IEnumerable<Photo> Photos { get { return _photos; } } public void AddPhoto(Photo photo) { //Some biz logic //... _photos.Add(photo); } } In the above example i have set the Photos collection type to IEnumerable as this will make it read only. The only way to add/remove photos is through the public methods. The problem with this is that the Entity Framework cannot load the Photo entities into the IEnumerable collection as it's not of type ICollection. By changing the type to ICollection will allow callers to call the Add mentod on the collection itself which is not good. What are my options? Edit: I could refactor the code so it does not expose a public property for Photos: public class Product { public Product() { Photos = new Collection<Photo>(); } public int Id { get; set; } public string Name { get; set; } private Collection<Photo> Photos {get; set; } public IEnumerable<Photo> GetPhotos() { return Photos; } public void AddPhoto(Photo photo) { //Some biz logic //... Photos.Add(photo); } } And use the GetPhotos() to return the collection. The other problem with the approach is that I will loose the change tracking abilities as I cannot mark the collection as Virtual - It is not possible to mark a property as private virtual. In NHibernate I believe it's possible to map the proxy class to the private collection via configuration. I hope that this will become a feature of EF4. Currently i don't like the inability to have any control over the collection!

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  • change width of UIAlertView in iPad

    - by Krishnan
    Hi Friends, Is there any way to change the frame of the UIAlertView in iPhone or iPad. I tried changing the frame in the following delegate method- (void)willPresentAlertView:(UIAlertView *)alertView; but even then the width of the Alertview remained unchanged. And I think a small Alertview in iPad will not make sense. And I guess there must be a way to achieve it, at least in iPad. Thanks, krishnan.

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  • My ashx stopped working (Works locally, but not online)

    - by Madi D.
    i have a simple ASHX file that returns pictures upon request (mainly a counter), previously the code simply fetched pre-made pictures(already uploaded and available) and sent them to the requester.. i just modified the code,so it would take a base picture, do some modifications on it, save it to the server, then serve it to the user.. tested it locally and it worked like a charm. however when i uploaded the code to my hosting service (Godaddy..) it didnt work. Can someone point the problem out to me? Note: ASHX worked with me before,so i know the web.config and IIS are handling them properly, however i think i am missing something .. Code: <%@ WebHandler Language="C#" Class="NWEmpPhotoHandler" %> using System; using System.Web; using System.IO; using System.Drawing; using System.Drawing.Imaging; public class NWEmpPhotoHandler : IHttpHandler { public bool IsReusable { get { return true; } } public void ProcessRequest(HttpContext ctx) { try { //Some Code to fetch # of vistors from DB int x = 10,000; // # of Vistors, fetched from DB string numberOfVistors = (1000 + x).ToString(); string filePath = ctx.Server.MapPath("counter.jpg"); Bitmap myBitmap = new Bitmap(filePath); Graphics g = Graphics.FromImage(myBitmap); g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias; StringFormat strFormat = new StringFormat(); g.DrawString(numberOfVistors , new Font("Tahoma", 24), Brushes.Maroon, new RectangleF(55, 82, 500, 500),null); string PathToSave = ctx.Server.MapPath("counter-" + numberOfVistors + ".jpg"); saveJpeg(PathToSave, myBitmap, 100); if (File.Exists(PathToSave)) { ctx.Response.ContentType = "image/jpg"; ctx.Response.WriteFile(PathToSave); //ctx.Response.OutputStream.Write(picByteArray, 0, picByteArray.Length); } } catch (ArgumentException exe) { } } private ImageCodecInfo getEncoderInfo(string mimeType) { // Get image codecs for all image formats ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders(); // Find the correct image codec for (int i = 0; i < codecs.Length; i++) if (codecs[i].MimeType == mimeType) return codecs[i]; return null; } private void saveJpeg(string path, Bitmap img, long quality) { // Encoder parameter for image quality EncoderParameter qualityParam = new EncoderParameter(Encoder.Quality, quality); // Jpeg image codec ImageCodecInfo jpegCodec = this.getEncoderInfo("image/jpeg"); if (jpegCodec == null) return; EncoderParameters encoderParams = new EncoderParameters(1); encoderParams.Param[0] = qualityParam; img.Save(path, jpegCodec, encoderParams); } }

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  • how to read input with multiple lines in java

    - by Gandalf StormCrow
    Hi all, Our professor is making us do some basic programming with java, he gaves a website and everything to register and submit our questions, for today I need to do this one example I feel like I'm on the right track but I just can't figure out the rest .. here is the actualy question : **Sample Input:** 10 12 10 14 100 200 **Sample Output:** 2 4 100 And here is what I've got so far : public class Practice { public static int calculateAnswer(String a, String b) { return (Integer.parseInt(b) - Integer.parseInt(a)); } public static void main(String[] args) { System.out.println(calculateAnswer(args[0], args[1])); } } Now I always get the answer 2 because I'm reading the single line, how can I take all lines into account? thank you For some strange reason everytime I want to execute I get this error: C:\sonic>java Practice.class 10 12 Exception in thread "main" java.lang.NoClassDefFoundError: Fact Caused by: java.lang.ClassNotFoundException: Fact.class at java.net.URLClassLoader$1.run(URLClassLoader.java:20 at java.security.AccessController.doPrivileged(Native M at java.net.URLClassLoader.findClass(URLClassLoader.jav at java.lang.ClassLoader.loadClass(ClassLoader.java:307 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher. at java.lang.ClassLoader.loadClass(ClassLoader.java:248 Could not find the main class: Practice.class. Program will exit. Whosever version of answer I use I get this error, what do I do ? However if I run it in eclipse Run as Run Configuration - Program arguments 10 12 10 14 100 200 I get no output EDIT I have made some progress, at first I was getting the compilation error, then runtime error and now I get wrong answer , so can anybody help me what is wrong with this : import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.math.BigInteger; public class Practice { public static BigInteger calculateAnswer(String a, String b) { BigInteger ab = new BigInteger(a); BigInteger bc = new BigInteger(b); return bc.subtract(ab); } public static void main(String[] args) throws IOException { BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in)); String line; while ((line = stdin.readLine()) != null && line.length()!= 0) { String[] input = line.split(" "); if (input.length == 2) { System.out.println(calculateAnswer(input[0], input[1])); } } } }

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  • pushViewController causes memory leak

    - by hookjd
    The Leaks application tells me that the following function is causing a memory leak and I can't figure out why. -(void)viewGameList { GameListController *gameListViewController = [[GameListController alloc] initWithNibName:@"GameListController" bundle:nil]; gameListViewController.rootController = self; [self.navigationController pushViewController:gameListViewController animated:YES]; [gameListViewController release]; } It tells me that this line causes a 128 byte memory leak. [self.navigationController pushViewController:gameListViewController animated:YES]; Am I missing something obvious?

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  • Switching from MDI to SDI and Back Again

    - by Mike Hofer
    This sounds like it would be a simple task, but I'm running into some issues. I have some fairly straightforward code for my C# application: private void SwitchToSdi() { MainWindow mainWindow = GetMainWindow(); for (int index = mainWindow.MdiChildren.Length - 1; index >= 0; index--) { Form form = mainWindow.MdiChildren[index]; if (!(form is MainWindow)) { form.Visible = false; form.MdiParent = null; form.Visible = true; mainWindow.MdiChildren[index] = null; } } mainWindow.IsMdiContainer = false; } And then, private void SwitchToMdi() { MainWindow mainWindow = GetMainWindow(); mainWindow.IsMdiContainer = true; for (int index = Application.OpenForms.Count - 1; index >= 0; index--) { Form form = Application.OpenForms[index]; if (!(form is MainWindow)) { form.Visible = false; form.MdiParent = mainWindow; form.Visible = true; } } } Note that MainWindow is an MDI parent window, with its IsMdiContainer property set to True. The user can toggle between MDI and SDI in the Options dialog. That much works beautifully. If I switch to SDI, the new windows open up OUTSIDE the main window, which is great. Similarly, if I switch to MDI, they open up inside the container. However, I've noticed a few things. Open MDI child windows don't become SDI windows as I would have expected them to. Open SDI windows don't become MDI child windows as I would have expected them to. Even after I set IsMdiContainer to true in the call to SwitchToMdi(), if I try to open a new window, I get an exception that tells me that the main window isn't an MDI container. o_O Someone please throw me a bone here. This shouldn't be rocket science. But I'm not finding a whole lot of useful help out there on the Intarwebs (read: g00gle is fairly useless). Has anyone actually implemented this behavior in .NET before? How did you achieve it? What am I missing here? Halp!

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  • How to run code before program exit?

    - by carter-boater
    Hi all, I have a little console C# program like Class Program { static void main(string args[]) { } } Now I want to do something after main() exit. I tried to write a deconstructor for Class Program, but it never get hit. Does anybody know how to do it. Thanks a lot

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  • C# SerialPort - Problems mixing ports with different baud rates.

    - by GrandAdmiral
    Greetings, I have two devices that I would like to connect over a serial interface, but they have incompatible connections. To get around this problem, I connected them both to my PC and I'm working on a C# program that will route traffic on COM port X to COM port Y and vice versa. The program connects to two COM ports. In the data received event handler, I read in incoming data and write it to the other COM port. To do this, I have the following code: private void HandleDataReceived(SerialPort inPort, SerialPort outPort) { byte[] data = new byte[1]; while (inPort.BytesToRead > 0) { // Read the data data[0] = (byte)inPort.ReadByte(); // Write the data if (outPort.IsOpen) { outPort.Write(data, 0, 1); } } } That code worked fine as long as the outgoing COM port operated at a higher baud rate than the incoming COM port. If the incoming COM port was faster than the outgoing COM port, I started missing data. I had to correct the code like this: private void HandleDataReceived(SerialPort inPort, SerialPort outPort) { byte[] data = new byte[1]; while (inPort.BytesToRead > 0) { // Read the data data[0] = (byte)inPort.ReadByte(); // Write the data if (outPort.IsOpen) { outPort.Write(data, 0, 1); while (outPort.BytesToWrite > 0); //<-- Change to fix problem } } } I don't understand why I need that fix. I'm new to C# (this is my first program), so I'm wondering if there is something I am missing. The SerialPort defaults to a 2048 byte write buffer and my commands are less than ten bytes. The write buffer should have the ability to buffer the data until it can be written to a slower COM port. In summary, I'm receiving data on COM X and writing the data to COM Y. COM X is connected at a faster baud rate than COM Y. Why doesn't the buffering in the write buffer handle this difference? Why does it seem that I need to wait for the write buffer to drain to avoid losing data? Thanks!

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  • Windows Service Hosting WCF Objects over SSL (https) - Custom JSON Error Handling Doesn't Work

    - by bpatrick100
    I will first show the code that works in a non-ssl (http) environment. This code uses a custom json error handler, and all errors thrown, do get bubbled up to the client javascript (ajax). // Create webservice endpoint WebHttpBinding binding = new WebHttpBinding(); ServiceEndpoint serviceEndPoint = new ServiceEndpoint(ContractDescription.GetContract(Type.GetType(svcHost.serviceContract + ", " + svcHost.assemblyName)), binding, new EndpointAddress(svcHost.hostUrl)); // Add exception handler serviceEndPoint.Behaviors.Add(new FaultingWebHttpBehavior()); // Create host and add webservice endpoint WebServiceHost webServiceHost = new WebServiceHost(svcHost.obj, new Uri(svcHost.hostUrl)); webServiceHost.Description.Endpoints.Add(serviceEndPoint); webServiceHost.Open(); I'll also show you what the FaultingWebHttpBehavior class looks like: public class FaultingWebHttpBehavior : WebHttpBehavior { public FaultingWebHttpBehavior() { } protected override void AddServerErrorHandlers(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher) { endpointDispatcher.ChannelDispatcher.ErrorHandlers.Clear(); endpointDispatcher.ChannelDispatcher.ErrorHandlers.Add(new ErrorHandler()); } public class ErrorHandler : IErrorHandler { public bool HandleError(Exception error) { return true; } public void ProvideFault(Exception error, MessageVersion version, ref Message fault) { // Build an object to return a json serialized exception GeneralFault generalFault = new GeneralFault(); generalFault.BaseType = "Exception"; generalFault.Type = error.GetType().ToString(); generalFault.Message = error.Message; // Create the fault object to return to the client fault = Message.CreateMessage(version, "", generalFault, new DataContractJsonSerializer(typeof(GeneralFault))); WebBodyFormatMessageProperty wbf = new WebBodyFormatMessageProperty(WebContentFormat.Json); fault.Properties.Add(WebBodyFormatMessageProperty.Name, wbf); } } } [DataContract] public class GeneralFault { [DataMember] public string BaseType; [DataMember] public string Type; [DataMember] public string Message; } The AddServerErrorHandlers() method gets called automatically, once webServiceHost.Open() gets called. This sets up the custom json error handler, and life is good :-) The problem comes, when we switch to and SSL (https) environment. I'll now show you endpoint creation code for SSL: // Create webservice endpoint WebHttpBinding binding = new WebHttpBinding(); ServiceEndpoint serviceEndPoint = new ServiceEndpoint(ContractDescription.GetContract(Type.GetType(svcHost.serviceContract + ", " + svcHost.assemblyName)), binding, new EndpointAddress(svcHost.hostUrl)); // This exception handler code below (FaultingWebHttpBehavior) doesn't work with SSL communication for some reason, need to resarch... // Add exception handler serviceEndPoint.Behaviors.Add(new FaultingWebHttpBehavior()); //Add Https Endpoint WebServiceHost webServiceHost = new WebServiceHost(svcHost.obj, new Uri(svcHost.hostUrl)); binding.Security.Mode = WebHttpSecurityMode.Transport; binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.None; webServiceHost.AddServiceEndpoint(svcHost.serviceContract, binding, string.Empty); Now, with this SSL endpoint code, the service starts up correctly, and wcf hosted objects can be communicated with just fine via client javascript. However, the custom error handler doesn't work. The reason is, the AddServerErrorHandlers() method never gets called when webServiceHost.Open() is run. So, can anyone tell me what is wrong with this picture? And why, is AddServerErrorHandlers() not getting called automatically, like it does when I'm using non-ssl endpoints? Thanks!

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  • How do bind a List<object> to a DataGrid in Silverlight?

    - by Ben McCormack
    I'm trying to create a simple Silverlight application that involves parsing a CSV file and displaying the results in a DataGrid. I've configured my application to parse the CSV file to return a List<CSVTransaction> that contains properties with names: Date, Payee, Category, Memo, Inflow, Outflow. The user clicks a button to select a file to parse, at which point I want the DataGrid object to be populated. I'm thinking I want to use data binding, but I can't seem to figure out how to get the data to show up in the grid. My XAML for the DataGrid looks like this: <data:DataGrid IsEnabled="False" x:Name="TransactionsPreview"> <data:DataGrid.Columns> <data:DataGridTextColumn Header="Date" Binding="{Binding Date}" /> <data:DataGridTextColumn Header="Payee" Binding="{Binding Payee}"/> <data:DataGridTextColumn Header="Category" Binding="{Binding Category}"/> <data:DataGridTextColumn Header="Memo" Binding="{Binding Memo}"/> <data:DataGridTextColumn Header="Inflow" Binding="{Binding Inflow}"/> <data:DataGridTextColumn Header="Outflow" Binding="{Binding Outflow}"/> </data:DataGrid.Columns> </data:DataGrid> The code-behind for the xaml.cs file looks like this: private void OpenCsvFile_Click(object sender, RoutedEventArgs e) { try { CsvTransObject csvTO = new CsvTransObject.ParseCSV(); //This returns a List<CsvTransaction> and passes it //to a method which is supposed to set the DataContext //for the DataGrid to be equal to the list. BindCsvTransactions(csvTO.CsvTransactions); TransactionsPreview.IsEnabled = true; MessageBox.Show("The CSV file has a valid header and has been loaded successfully."); } catch (Exception ex) { MessageBox.Show(ex.Message); } } private void BindCsvTransactions(List<CsvTransaction> listYct) { TransactionsPreview.DataContext = listYct; } My thinking is to bind the CsvTransaction properties to each DataGridTextColumn in the XAML and then set the DataContext for the DataGrid to the List<CsvTransaction at run-time, but this isn't working. Any ideas about how I might approach this (or do it better)?

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  • how to pass parameter to a webservice using ksoap2?

    - by user255681
    hi there, i'm using eclipse to develop over android, i'm trying to connect to a .net webservice... when i'm calling a webmethod with no parameters it works fine... but when i come to pass a parameter to the webmethod things turn upside down... the parameter is passed as null (while debugging the webservice i discovered that) and i get a null from the webmethod in the client side code... i've been searching for a solution for a day now and all that i can interpreter is that people keep talking about encoding styles and such stuff.... i've tried it all but in vain. i'm using ksoap2 version 2.3 with the following code package com.examples.hello; import org.ksoap2.SoapEnvelope; import org.ksoap2.serialization.PropertyInfo; import org.ksoap2.serialization.SoapObject; import org.ksoap2.serialization.SoapSerializationEnvelope; import org.ksoap2.transport.HttpTransportSE; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class HelloActivity extends Activity { /** Called when the activity is first created. */ private static final String SOAP_ACTION = "http://Innovation/HRService/stringBs"; private static final String METHOD_NAME = "stringBs"; private static final String NAMESPACE = "http://Innovation/HRService/"; private static final String URL = "http://196.205.5.170/mdl/hrservice.asmx"; TextView tv; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); tv=(TextView)findViewById(R.id.text1); call(); } public void call() { try { SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); //PropertyInfo PI = new PropertyInfo(); //request.addProperty("a", "myprop"); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); envelope.setOutputSoapObject(request); envelope.dotNet=true; envelope.encodingStyle = SoapSerializationEnvelope.XSD; HttpTransportSE androidHttpTransport = new HttpTransportSE(URL); androidHttpTransport.call(SOAP_ACTION, envelope); Object result = (Object)envelope.getResponse(); String results = result.toString(); tv.setText( ""+results); } catch (Exception e) { tv.setText(e.getMessage()); } } }

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  • Accessing C# Anonymous Type Objects

    - by Ali Kazmi
    Hi, How do i access objects of an anonymous type outside the scope where its declared? for e.g. void FuncB() { var obj = FuncA(); Console.WriteLine(obj.Name); } ??? FuncA() { var a = (from e in DB.Entities where e.Id == 1 select new {Id = e.Id, Name = e.Name}).FirstOrDefault(); return a; }

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  • How test guice injections?

    - by yeraycaballero
    I gave to Google Guice the responsability of wiring my objects. But, How can I test if the bindings are working well. For example, suppose we have a class A which has a dependence B. How can I test than B is injected correctly. class A { private B b; public A() {} @Inject public void setB(B b) { this.b = b } } Notice A hasn't got a getB() method and I want to assert that A.b isn't null.

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  • getting user input via console in c#

    - by every_answer_gets_a_point
    i have this code in a button in a wpf in c#: private void button1_Click(object sender, RoutedEventArgs e) { Console.Write("What is your name?: "); Console.Write("Hello, {0}! ", Console.ReadLine()); Console.WriteLine("Welcome to the C# Station Tutorial!"); } when i click the button, nothing happens. why doesn't the console appear?

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  • ASP.Net and FaceBook Wall integration

    - by Jit
    Hi, I am new to FaceBook API. I like to send messages when I want from my aspx webpage. I used the different examples and used FaceBook API 3.1. I am getting error as "service temporarily unavailable". I have assigned AppKey, Secret Key and session key. My sample code is below. using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using Facebook; using Facebook.Web; using Facebook.Rest; using Facebook.Session; using Facebook.Utility; using Facebook.BindingHelper; using Facebook.Schema; using Facebook.Web.FbmlControls; using Facebook.Session.DesktopPopup; namespace FaceBookApp { public partial class _Default : System.Web.UI.Page { private const string ApplicationKey = "MY_APP_KEY"; private const string SecretKey = "MY_SECRET_KEY"; private Api fbAPI; private ConnectSession _connectSession; // private List<EventUser> _eventUsers; protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { _connectSession = new ConnectSession(ApplicationKey, SecretKey); _connectSession.SessionKey = "MY_SESSION_KEY"; if (!_connectSession.IsConnected()) { // Not authenticated, proceed as usual. //lblStatus.Text = "Please sign-in with Facebook."; } else { // Authenticated, create API instance fbAPI = new Api(_connectSession); string response = fbAPI.Stream.Publish("publish steven on facebook."); } } } } The error message is confusing. It must be a very simple solution. I don't know what I am missing. Pls help. Here is the facebook exception. {"Service temporarily unavailable"}

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  • Java ExecutorService java heap space ptoblems

    - by Sergey Aganezov jr
    I have a little bit of a problem in a multitasking java department. I have a class, called public class ThreadWorker implements Runnable { //some code in here public void run(){ // invokes some recursion method in the ThreadWorker itself, // which will stop eventually { } all in all, pretty simple "worker" that can work on it's on. To work with threads I'm using public static int THREAD_NUMBER = 4; public static ExecutorServide es = Executors.newFixedThreadPool(THREAD_NUMBER); adding instances of ThreadWroker class happens here: public void recursiveMethod(Arraylist<Integers> elements, MyClass data){ if (elements.size() == 0 && data.qualifies()){ ThreadWorker tw = new ThreadWorker(data); es.execute(tw); return; } for (int i=0; i< elements.size(); i++){ // some code to prevent my problem MyClass data1 = new MyClass(data); MyClass data2 = new MyClass(data); ArrayList<Integer> newElements = (ArrayList<Integer>)elements.clone(); data1.update(elements.get(i)); data2.update(-1 * elements.get(i)); newElements.remove(i); recursiveMethod(newElements, data1); recursiveMethod(newElements, data2); { } and the problem is that the depth of the recursion tree is quite big, so as it's width, so a lot of ThreadWorkers are added to the ExecutorService, so after some time on the big input a get Exception in thread "pool-1-thread-2" java.lang.OutOfMemoryError: Java heap space which is caused, as I think because of a ginormous number of ThreadWorkers i'm adding to ExecutorSirvice to be executed, so it runs out of memory. Every ThreadWorker takes about 40 Mb of RAM for all it needs. Is there a method to get how many threads (instances of classes implementing runnable interface) have been added to ExecutorService? So I can add it in the shown above code (int the " // some code to prevent my problem"), as while ("number of threads in the ExecutorService" > 10){ Thread.sleep(10000); } so I won't go to deep or to broad with my recursion and prevent those exception-throwing situations. Sincerely, Sergey Aganezov jr.

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  • Problems with this stack implementation

    - by Andersson Melo
    where is the mistake? My code here: typedef struct _box { char *dados; struct _box * proximo; } Box; typedef struct _pilha { Box * topo; }Stack; void Push(Stack *p, char * algo) { Box *caixa; if (!p) { exit(1); } caixa = (Box *) calloc(1, sizeof(Box)); caixa->dados = algo; caixa->proximo = p->topo; p->topo = caixa; } char * Pop(Stack *p) { Box *novo_topo; char * dados; if (!p) { exit(1); } if (p->topo==NULL) return NULL; novo_topo = p->topo->proximo; dados = p->topo->dados; free(p->topo); p->topo = novo_topo; return dados; } void StackDestroy(Stack *p) { char * c; if (!p) { exit(1); } c = NULL; while ((c = Pop(p)) != NULL) { free(c); } free(p); } int main() { int conjunto = 1; char p[30]; int flag = 0; Stack *pilha = (Stack *) calloc(1, sizeof(Stack)); FILE* arquivoIN = fopen("L1Q3.in","r"); FILE* arquivoOUT = fopen("L1Q3.out","w"); if (arquivoIN == NULL) { printf("Erro na leitura do arquivo!\n\n"); exit(1); } fprintf(arquivoOUT,"Conjunto #%d\n",conjunto); while (fscanf(arquivoIN,"%s", p) != EOF ) { if (pilha->topo == NULL && flag != 0) { conjunto++; fprintf(arquivoOUT,"\nConjunto #%d\n",conjunto); } if(strcmp(p, "return") != 0) { Push(pilha, p); } else { p = Pop(pilha); if(p != NULL) { fprintf(arquivoOUT, "%s\n", p); } } flag = 1; } StackDestroy(pilha); return 0; } The Pop function returns the string value read from file. But is not correct and i don't know why.

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