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  • c#: how to send ctrl+z

    - by I__
    how do i convert ctrl+z to a string? i am sending this as an AT COMMAND to an attached device to this computer basically i just to put some chars in a string and ctrl+z in that string as well

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  • VB.NET 2008 Application crashing during Do Loop

    - by RedHaze
    I am writing an application to compare each item on listbox1 to all items on listbox2. If the item is found, then remove it from both lists. The goal is to only have the items that were not found remain on both lists. The problem is, the application just hangs and I never get any results. I looked at my code several times and I cannot figure out what's going on (programming noob I know...). Can anybody help me with this? Code Snippet: Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim a As String Dim b As String Dim y As String For i As Integer = 0 To ListBox1.Items.Count - 1 a = ListBox1.Items(i) y = 1 Do While y = 1 For x As Integer = 0 To ListBox2.Items.Count - 1 b = ListBox2.Items(x) Dim res As Int16 = String.Compare(a, b) If res = 0 Then y = 0 ListBox2.Items.Remove(i) ListBox2.Items.Remove(x) ElseIf x = ListBox1.Items.Count Then Exit Do End If Next Loop Next End Sub

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  • How to foreach through a 2 dimensional array?

    - by Scott Langham
    If I've got a 2 dimensional array. string[,] table = { { "aa", "aaa" }, { "bb", "bbb" } }; And I'd like to foreach through it like this. foreach (string[] row in table) { Console.WriteLine(row[0] + " " + row[1]); } But, I get the error "Can't convert type string to string[] Is there a way I can achieve what I want, i.e. iterate through the first dimension of the array with the iterator variable returning me the 1 dimensional array for that row? Thanks.

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  • What is/are the Scala way(s) to implement this Java "byte[] to Hex" class

    - by nicerobot
    I'm specifically interested in Scala (2.8) techniques for building strings with formats as well as interesting ways to make such a capability easily accessible where it's useful (lists of bytes, String, ...?).. public class Hex { public static String valueOf (final byte buf[]) { if (null == buf) { return null; } final StringBuilder sb = new StringBuilder(buf.length * 2); for (final byte b : buf) { sb.append(String.format("%02X", b & 0xff)); } return sb.toString(); } public static String valueOf (final Byteable o) { return valueOf(o.toByteArray()); } } This is only a learning exercise (so the utility and implementation of the Java isn't a concern.) Thanks

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  • Ques: Which method will be called and y?

    - by Gaurav
    Ques: Which method will be called and y? public class Test { public void method(Object o){ System.out.println("object"); } public void method(String s) { System.out.println("String"); } public void method() { System.out.println("blank"); } /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Test test=new Test(); test.method(null); } }

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  • Java: over-typed structures? To have many types in Object[]?

    - by HH
    Term over-type structure = a data structure that accepts different types, can be primitive or user-defined. I think ruby supports many types in structures such as tables. I tried a table with types 'String', 'char' and 'File' in Java but errs. How can I have over-typed structure in Java? How to show types in declaration? What about in initilization? Suppose a structure: INDEX VAR FILETYPE //0 -> file FILE //1 -> lineMap SizeSequence //2 -> type char //3 -> binary boolean //4 -> name String //5 -> path String Code import java.io.*; import java.util.*; public class Object { public static void print(char a) { System.out.println(a); } public static void print(String s) { System.out.println(s); } public static void main(String[] args) { Object[] d = new Object[6]; d[0] = new File("."); d[2] = 'T'; d[4] = "."; print(d[2]); print(d[4]); } } Errors Object.java:18: incompatible types found : java.io.File required: Object d[0] = new File("."); ^ Object.java:19: incompatible types found : char required: Object d[2] = 'T'; ^

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  • URL decoding Japanese characters etc. in Java

    - by DanieL
    I have a servlet that receives some POST data. Because this data is x-www-form-urlencoded, a string such as ???? would be encoded to &#12469;&#12508;&#12486;&#12531;. How would I unencode this string back to the correct characters? I have tried using URLDecoder.decode("encoded string", "UTF-8"); but it doesn't make a difference. The reason I would like to unencode them, is because, before I display this data on a webpage, I escape & to &amp; and at the moment, it is escaping the &s in the encoded string so the characters are not showing up properly.

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  • Generic delegate instances

    - by Luc C
    I wonder if C# (or the underlying .NET framework) supports some kind of "generic delegate instances": that is a delegate instance that still has an unresolved type parameter, to be resolved at the time the delegate is invoked (not at the time the delegate is created). I suspect this isn't possible, but I'm asking it anyway... Here is an example of what I'd like to do, with some "???" inserted in places where the C# syntax seems to be unavailable for what I want. (Obviously this code doesn't compile) class Foo { public T Factory<T>(string name) { // implementation omitted } } class Test { public void TestMethod() { Foo foo = new Foo(); ??? magic = foo.Factory; // No type argument given here yet to Factory! // What would the '???' be here (other than 'var' :) )? string aString = magic<string>("name 1"); // type provided on call int anInt = magic<int>("name 2"); // another type provided on another call // Note the underlying calls work perfectly fine, these work, but i'd like to expose // the generic method as a delegate. string aString2 = foo.Factory<string>("name 1"); int anInt2 = foo.Factory<int>("name 2"); } } Is there a way to actually do something like this in C#? If not, is that a limitation in the language, or is it in the .NET framework?

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  • C# How to output to GUI when data is coming via an interface via MarshalByRefObject?

    - by Tom
    Hey, can someone please show me how i can write the output of OnCreateFile to a GUI? I thought the GUI would have to be declared at the bottom in the main function, so how do i then refer to it within OnCreateFile? using System; using System.Collections.Generic; using System.Runtime.Remoting; using System.Text; using System.Diagnostics; using System.IO; using EasyHook; using System.Drawing; using System.Windows.Forms; namespace FileMon { public class FileMonInterface : MarshalByRefObject { public void IsInstalled(Int32 InClientPID) { //Console.WriteLine("FileMon has been installed in target {0}.\r\n", InClientPID); } public void OnCreateFile(Int32 InClientPID, String[] InFileNames) { for (int i = 0; i < InFileNames.Length; i++) { String[] s = InFileNames[i].ToString().Split('\t'); if (s[0].ToString().Contains("ROpen")) { //Console.WriteLine(DateTime.Now.Hour+":"+DateTime.Now.Minute+":"+DateTime.Now.Second+"."+DateTime.Now.Millisecond + "\t" + s[0] + "\t" + getProcessName(int.Parse(s[1])) + "\t" + getRootHive(s[2])); Program.ff.enterText(DateTime.Now.Hour + ":" + DateTime.Now.Minute + ":" + DateTime.Now.Second + "." + DateTime.Now.Millisecond + "\t" + s[0] + "\t" + getProcessName(int.Parse(s[1])) + "\t" + getRootHive(s[2])); } else if (s[0].ToString().Contains("RQuery")) { Console.WriteLine(DateTime.Now.Hour + ":" + DateTime.Now.Minute + ":" + DateTime.Now.Second + "." + DateTime.Now.Millisecond + "\t" + s[0] + "\t" + getProcessName(int.Parse(s[1])) + "\t" + getRootHive(s[2])); } else if (s[0].ToString().Contains("RDelete")) { Console.WriteLine(DateTime.Now.Hour + ":" + DateTime.Now.Minute + ":" + DateTime.Now.Second + "." + DateTime.Now.Millisecond + "\t" + s[0] + "\t" + getProcessName(int.Parse(s[0])) + "\t" + getRootHive(s[1])); } else if (s[0].ToString().Contains("FCreate")) { //Console.WriteLine(DateTime.Now.Hour+":"+DateTime.Now.Minute+":"+DateTime.Now.Second+"."+DateTime.Now.Millisecond + "\t" + s[0] + "\t" + getProcessName(int.Parse(s[1])) + "\t" + s[2]); } } } public void ReportException(Exception InInfo) { Console.WriteLine("The target process has reported an error:\r\n" + InInfo.ToString()); } public void Ping() { } public String getProcessName(int ID) { String name = ""; Process[] process = Process.GetProcesses(); for (int i = 0; i < process.Length; i++) { if (process[i].Id == ID) { name = process[i].ProcessName; } } return name; } public String getRootHive(String hKey) { int r = hKey.CompareTo("2147483648"); int r1 = hKey.CompareTo("2147483649"); int r2 = hKey.CompareTo("2147483650"); int r3 = hKey.CompareTo("2147483651"); int r4 = hKey.CompareTo("2147483653"); if (r == 0) { return "HKEY_CLASSES_ROOT"; } else if (r1 == 0) { return "HKEY_CURRENT_USER"; } else if (r2 == 0) { return "HKEY_LOCAL_MACHINE"; } else if (r3 == 0) { return "HKEY_USERS"; } else if (r4 == 0) { return "HKEY_CURRENT_CONFIG"; } else return hKey.ToString(); } } class Program : System.Windows.Forms.Form { static String ChannelName = null; public static Form1 ff; Program() // ADD THIS CONSTRUCTOR { InitializeComponent(); } static void Main() { try { Config.Register("A FileMon like demo application.", "FileMon.exe", "FileMonInject.dll"); RemoteHooking.IpcCreateServer<FileMonInterface>(ref ChannelName, WellKnownObjectMode.SingleCall); Process[] p = Process.GetProcesses(); for (int i = 0; i < p.Length; i++) { try { RemoteHooking.Inject(p[i].Id, "FileMonInject.dll", "FileMonInject.dll", ChannelName); } catch (Exception e) { } } } catch (Exception ExtInfo) { Console.WriteLine("There was an error while connecting to target:\r\n{0}", ExtInfo.ToString()); } } } }

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  • C++ macro definition unclear

    - by Tony
    Is this a macro defintion for a class or what exactly is it? #define EXCEPTIONCLASS_IMPLEMENTATION(name, base, string) : public base \ { \ public: \ name() : base(string) {} \ name(const x::wrap_exc& next) : base(string,next) {}; \ name(const x::wrap_exc& prev, const x::wrap_exc& next) : \ base(prev, next) {}; \ }

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  • DisplayObject not being displayed in AS3

    - by MarkSteve
    I have this class: public class IskwabolText extends Sprite { private var _tf:TextField; private var _tfmt:TextFormat; private var _size:Number; private var _text:String; public function IskwabolText(params:Object) { var defaultParams:Object = { color: 0x000000, background: false, backgroundColor: 0xFFFFFF, width: 0, height: 0, multiline: false, wordWrap: false }; // textfield _tf = new TextField(); _tf.antiAliasType = 'advanced'; _tf.embedFonts = true; _tf.type = 'dynamic'; _tf.selectable = false; // textformat _tfmt = new TextFormat(); set(defaultParams); set(params); } public function get(param:String):Object { switch (param) { case 'size': return _tfmt.size; case 'text': return _tf.text; case 'font': return _tfmt.font; case 'color': return _tfmt.color; case 'background': return _tf.background; case 'backgroundColor': return _tf.backgroundColor; case 'width': return _tf.width; case 'height': return _tf.height; case 'multiline': return _tf.multiline; case 'wordWrap': return _tf.multiline; default: return this[param]; } return null; } public function set(params:Object):Object { for (var i:String in params) { setParam(i, params[i]); } redraw(); return this; } private function setParam(param:String, value:Object):Object { switch (param) { case 'size': _tfmt.size = new String(value); break; case 'text': _tf.text = new String(value); break; case 'font': _tfmt.font = new String(value); break; case 'color': _tfmt.color = new uint(value); break; case 'background': _tf.background = new Boolean(value); break; case 'backgroundColor': _tf.backgroundColor = new uint(value); break; case 'width': _tf.width = new Number(value); break; case 'height': _tf.height = new Number(value); break; case 'multiline': _tf.multiline = new Boolean(value); break; case 'wordWrap': _tf.multiline = new Boolean(value); break; default: this[param] = value; break; } return this; } private function redraw():void { _tf.setTextFormat(_tfmt); if (contains(_tf)) removeChild(_tf); if (_tf.width == 0) _tf.width= _tf.textWidth+5; _tf.height = _tf.textHeight; addChild(_tf); } } But when I do this: public class Main extends Sprite { public function Main() { addChild(new IskwabolText({ size: 100, text: 'iskwabol', font: 'Default', // this is properly embedded color: 0x000000, x: stage.stageWidth / 2 - this.width / 2, y: 140 })); } } The child IskwabolText doesn't get displayed. What happening?

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  • Unable to establish the connection to the file in BlackBerry

    - by Vikas
    I have tried the example code on SO to read the contents from the file in the resource directory in BlackBerry. But I am having an issue with the FileConnection. I get the following error: File system error (1003) I tried the example from here. I want only the read functionality, the file I want to read is in CSV format as a .txt file placed in the /res/test.txt. public class FileDemo extends MainScreen { public FileDemo() { setTitle("My Page"); String str = readTextFile("file:///test.txt"); System.out.println("Contents of the file::::::: " + str); } public String readTextFile(String fName) { String result = null; FileConnection fconn = null; DataInputStream is = null; try { fconn = (FileConnection) Connector.openInputStream(fName); is = fconn.openDataInputStream(); byte[] data = IOUtilities.streamToBytes(is); result = new String(data); } catch (IOException e) { System.out.println(e.getMessage()); } finally { try { if (null != is) is.close(); if (null != fconn) fconn.close(); } catch (IOException e) { System.out.println(e.getMessage()); } } return result; } } Any suggestions/advice on a better approach or as to how I can get this working??

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  • AutoMapper strings to enum descriptions

    - by 6footunder
    Given the requirement: Take an object graph, set all enum type properties based on the processed value of a second string property. Convention dictates that the name of the source string property will be that of the enum property with a postfix of "Raw". By processed we mean we'll need to strip specified characters e.t.c. I've looked at custom formatters, value resolvers and type converters, none of which seems like a solution for this? We want to use AutoMapper as opposed to our own reflection routine for two reasons, a) it's used extensively throughout the rest of the project and b) it gives you recursive traversal ootb. -- Example -- Given the (simple) structure below, and this: var tmp = new SimpleClass { CountryRaw = "United States", Person = new Person { GenderRaw="Male" } }; var tmp2 = new SimpleClass(); Mapper.Map(tmp, tmp2); we'd expect tmp2's MappedCountry enum to be Country.UnitedStates and the Person property to have a gender of Gender.Male. public class SimpleClass1 { public string CountryRaw {get;set;} public Country MappedCountry {get;set;} public Person Person {get;set;} } public class Person { public string GenderRaw {get;set;} public Gender Gender {get;set;} public string Surname {get;set;} } public enum Country { UnitedStates = 1, NewZealand = 2 } public enum Gender { Male, Female, Unknown } Thanks

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  • How do i resolve method Overlapping in java/Processing [duplicate]

    - by user3718913
    This question already has an answer here: How do I compare strings in Java? 24 answers I have two methods/function in a class, called, Qestion1 and Question2, i want it in such a way that after the user has answered Question one correctly, the Question 2 method is called. Whenever i call the method 2, it displays both of them together instead exiting the first method first. Here's a dummy code to illustrate what i'm saying: void Question1() { String question="What is the capital of England?"; String Answer="London"; if(Answer=='London') { Question2(); } } void Question2() { String question="What is the capital of California?"; String Answer="Sacramento"; if(Answer=='Sacramento') { Question3(); } } Pls, this question is in no way related to that other question. Pls peruse the thread again.

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  • What type of objects can be sent back to an action Method using HTML.HIDDEN()

    - by Richard77
    Hello, 1)Let's say I've this form: <%Using(Html.BeginForm()){%> <% = Html.Hidden("myObject", (cast to the appropriate type)ViewData["KeyForMyObject"]%> <input type = "submit" "Submit Object"> <%}%> 2) Here's the Action which's supposed to intercept the value of the object public ActionResult MyAction(Type myObject) { //Do Something with the object } Here's my question: What type of objects the Hidden field can support? In fact, when ViewData["KeyForMyObject"] contains a string, int, or bool, myAction is able to retrieve the value. But, when it comes to objects, such as List, and dictionary, nothing happens. When I debug to check the local values, I see null for Type myObject in the MyMethod. So what are the rules in MVC when it comes to a List or Dictionary? ================================= EDIT To make things simpler, can I write something like this <% = Html.Hidden("contactDic", (Dictionary<string, string>) ViewData["contacts"])%> and expect to retrieve the dictionary in the action Method like this public ActionResult myMethod(Dictionary<string, string> contactDic) { //Do something with the dictionary } Thanks for Helping

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  • Transmitting complex objects using TCP

    - by Rakesh K
    I have a client server application in which I need to transmit a user defined object from Client to Server using TCP connection. My object is of the following structure: class Conversation { private string convName, convOwner; public ArrayList convUsers; public string getConvName() { return this.convName; } public string getConvOwner() { return this.convOwner; } } Please help me how to transmit this object at from client and again de-serialize it into appropriate object at server side.

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  • SQL query doesn't get inserted

    - by Deejdd
    I've been trying to get my query to work for some time it runs but doesn't insert anything nor does it return any errors. The database connection is open and is successfuly connection. The Table is called errorlog and holds the following data - id (int autoincremental, Primary key, Unique) - exception (varchar) - time (DateTime) exception = String(error message) time = DateTime.Now Here's the code: public void insertError(string error, DateTime time) { SqlCeParameter[] sqlParams = new SqlCeParameter[] { new SqlCeParameter("@exception", error), new SqlCeParameter("@time", time) }; try { cmd = new SqlCeCommand(); cmd.Connection = connection; cmd.CommandType = CommandType.Text; cmd.CommandText = "INSERT INTO errorlog (exception, time) VALUES(@exception, @time)"; cmd.Parameters.AddRange(sqlParams); cmd.ExecuteNonQuery(); } catch (Exception e) { Console.WriteLine(e.Message); } } Any help would be appreciated, Thanks in advance. EDIT Removed quotes around @exception Heres the connection: protected DataController() { try { string appPath = System.IO.Path.GetDirectoryName(Assembly.GetAssembly(typeof(DataController)).CodeBase).Replace(@"file:\", "") + @"\"; string strCon = @"Data Source = " + appPath + @"Data\EasyShop.sdf"; connection = new SqlCeConnection(strCon); } catch (Exception e) { } connection.Open(); } Finally the way it gets called: public bool log(string msg, bool timestamp = true) { DataController dc = DataController.Instance(); dc.insertError(msg, DateTime.Today); return true; }

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  • Is it a good practice to have trim in setter?

    - by zibi
    I'm doing a code review and I noticed such a code: @Entity @Table(name = "SOME_TABLE") public class SomeReportClass { @Column(name = "REPORT_NUMBER", length = 6, nullable = false) private String reportNumber; ..... public String getReportNumber() { return reportNumber; } public void setReportNumber(String reportNumber) { this.reportNumber = StringUtils.trimToNull(reportNumber); } } Every time I see trimming inside of a setter I feel that its not the clearest solution - what is the general practice with that issue?

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  • jboss web services to tranfer files

    - by mengmenger
    I dont have any experience for web services. please give me some suggestion about the task below. the task is: users will send a txt file (size should less than 20K ) from a .NET application, I need to write a web services which runs by jboss 5.x to read this file and edit this file and send the file back to .NET UI to display the edited version. question is that if the txt file is just test string or binary string, are there any restriction of the string length? if it's binary string, can I need to use BinaryReader class to read it? or not need special reader to read it? (this could be a dumn question :P) what if the .NET application can save the file on either the .NET application server or some shared server location, send a download URL to web serivces, can web services download it and read it? JBoss will be run on Linux sever. After edit the file, how do I send it back? Thanks for your help!

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  • Define a method in base class that returns the name of itself (using reflection) - subclasses inheri

    - by Khnle
    In C#, using reflection, is it possible to define method in the base class that returns its own name (in the form of a string) and have subclasses inherit this behavior in a polymorphic way? For example: public class Base { public string getClassName() { //using reflection, but I don't want to have to type the word "Base" here. //in other words, DO NOT WANT get { return typeof(Base).FullName; } return className; //which is the string "Base" } } public class Subclass : Base { //inherits getClassName(), do not want to override } Subclass subclass = new Subclass(); string className = subclass.getClassName(); //className should be assigned "Subclass"

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  • Java: I've created a list of word objects to include the name and the frequency, but having trouble

    - by adam08
    Hi Everyone, I'm working on a project which has a dictionary of words and I'm extracting them and adding them to an ArrayList as word objects. I have a class called Word as below. What I'm wondering is how do I access these word objects to update the frequency? As part of this project, I need to only have one unique word, and increase the frequency of that word by the number of occurrences in the dictionary. Word(String word) { this.word = word; this.freq = 0; } public String getWord() { return word; } public int getFreq() { return freq; } public void setFreq() { freq = freq + 1; } This is how I am adding the word objects to the ArrayList...I think it's ok? String pattern = "[^a-zA-Z\\s]"; String strippedString = line.replaceAll(pattern, ""); line = strippedString.toLowerCase(); StringTokenizer st = new StringTokenizer(line); while (st.hasMoreTokens()) { String newWord = st.nextToken(); word.add(new Word(newWord)); count++; }

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  • Dependency Injection. Assign values to IENUMERABLE

    - by Boss
    public interface IFeature { string FeatureName { get; set; } } public interface IFeatureRegistry { IEnumerable<IFeature> Features { get; set; } bool IsEnabled(IEnumerable<string> featurePath); } public interface IApplicationTenant { string ApplicationName { get; } IFeatureRegistry EnabledFeatures { get; } } public abstract class AbstractApplicationTenant : IApplicationTenant { public string ApplicationName { get; protected set; } public IFeatureRegistry EnabledFeatures { get; protected set; } } public class SampleTenant : AbstractApplicationTenant { public SampleTenant() { ApplicationName = "Sample 1"; EnabledFeatures = null; } } I am new to this field. My question is how to assign values to EnabledFeatures? Thanks Jeco

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  • Return NSString from a recursive function

    - by Dave
    Hi, I have a recursive function that is designed to take parse a tree and store all the values of the tree nodes in an NSString. Is the algorithm below correct? NSString* finalString = [self parseTree:rootNode string:@""]; -(NSString*)parseTree:(Node*)currentNode string:(NSMutableString*)myString { [myString appendText:currentNode.value]; for(int i=0;i<[currentNode.children length];i++){ return [self parseTree:[currentNode.children] objectAtIndex:i] string:myString]; } }

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  • PHP: question about passing parameters in URL's

    - by user248959
    Hi, i have this two lines: var_dump($parametros_post_signin); $this->redirect('prueba/aux?email='.$parametros_post_signin['signin']); the first one prints this: array 'signin' => array 'email_address' => string '' (length=0) 'password' => string '' (length=0) the second one takes to another action where i have this code: var_dump($request->getParameter('email')); that prints this: string 'password' (length=8) I expected it to print something like this: string '' (length=0) What should i do to the get value of the 'email_address' field ? Regards Javi

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