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  • .Net Linq - Join together all item of a List

    - by Melursus
    How can I write a Linq expression that select item from a List and join them together ? Example IList<string> data = new List<string>(); data.Add("MyData1"); data.Add("MyData2"); string result = //some linq query... I try data.Select(x => x + ","); //result = "MyData1, MyData2"

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  • Why are Java primitive types' modifiers `public`, `abstract`, & `final`?

    - by oconnor0
    In the process of doing some reflection on Java types, I came across an oddity that I do not understand. Inspecting int for its modifiers returns public, abstract, and final. I understand public and final, but the presence of abstract on a primitive type is non-obvious to me. Why is this the case? Edit: I am not reflecting on Integer but on int: import java.lang.reflect.Modifier; public class IntegerReflection { public static void main(final String[] args) { System.out.println(String.format("int.class == Integer.class -> %b", int.class == Integer.class)); System.out.println(String.format("int.class modifiers: %s", Modifier.toString(int.class.getModifiers()))); System.out.println(String.format("Integer.class modifiers: %s", Modifier.toString(Integer.class.getModifiers()))); } } The output when run: int.class == Integer.class -> false int.class modifiers: public abstract final Integer.class modifiers: public final

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  • How can I tell when the Text of a System.Windows.Forms.GroupBox wraps to the next line?

    - by fre0n
    I'm creating a GroupBox at runtime and setting its Text property. Usually, the text is only on one line, but sometimes it wraps. The problem is that the controls contained in the GroupBox cover up the GroupBox's text. What I'd like to do is determine if and when the text wraps. Specifically, I'd like to determine how much extra height the wrapped text takes up as compared to a single line. That way, I can reposition the GroupBox's controls and adjust its height. Initially, I thought I'd do this by calling the GroupBox's CreateGraphics() method, and using the Graphics to measure the string. Something like this: private void SetGroupBoxText(GroupBox grp, string text) { const int somePadding = 10; Graphics g = grp.CreateGraphics(); SizeF textSize = g.MeasureString(text, grp.Font); if (textSize.Width > (grp.Width - somePadding)) { // Adjust height, etc. } } The problem is that the size generated by g.MeasureString(text, grp.Font) doesn't seem to be accurate. I determined that it wasn't accurate by putting enough of a single character to cause a wrap, then measuring the resulting string. For example, it took 86 pipes (|) to until a wrap happened. When I measured that string, its width was ~253. And it took 16 capital W's to force a wrap - its string had a width of ~164. These were the two extremes that I tested. My GroupBox's width was 189. (a's took 29 and had a width of ~180, O's took 22 and had a width of ~189) Does anyone have any ideas? (hacks, WinAPI, etc. are welcome solutions)

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  • query on custom field via webservice

    - by Roberto Parrotto
    I customized the content of Defect in my Rally workspace adding a new custom field. This custom field is of type string, its name is CustomTest and its display name is CustomAttribute. I added the value "test" on a defect, but I can't create a working query on that custom field (I'm developing in Java and using the ws api for rally). the query I tried are String query8 = "(CustomAttribute = \"test\")"; String query9 = "(CustomAttribute = \"test\")";

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  • How do I get class of an internal static class in another assembly?

    - by Echiban
    I have a class C in Assembly A like this: internal class C { internal static string About_Name { get { return "text"; } ... } I have about 20 such static properties. Is there a way, in an outside assembly, without using friend assembly attribute (.Net reflection only), get class C so I can invoke any of the static string properties like this: Class C = <some .Net reflection code>; string expected = C.About_Name; If that is not possible, a .Net reflection code to get the string property value directly will suffice, but not ideal. Thanks in advance!

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  • How send sms 2automatically 2 a paricular no: only?

    - by royalcasanova
    import net.rim.device.api.io.; import net.rim.device.api.system.; import javax.microedition.io.; import java.util.; import java.io.*; public class SendSms extends Application { private static final int MAX_PHONE_NUMBER_LENGTH = 32; private String addr = "15191112222"; private String msg = "This is a test message."; private DatagramConnection _dc = null; private static String _openString = "sms://"; public static void main(String[] args) { new SendSms().enterEventDispatcher(); } public SendSms() { try { _dc = (DatagramConnection)Connector.open(_openString); byte[] data = msg.getBytes(); Datagram d = _dc.newDatagram(_dc.getMaximumLength()); d.setAddress("//" + addr); _dc.send(d); } catch ( IOException e) {} System.exit(0); } }

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  • Case insensitive expectations in Rhino Mocks

    - by user313886
    I'm using Rhino Mocks to expect a call. There is a single parameter which is a string. But I'm not bothered about the case of the string. I want the test to pass even if the case is wrong. So I'm doing the following: //expect log message to be called with a string parameter. //We want to ignore case when verifiyig so we use a constraint instead of a direct parameter Expect.Call(delegate { logger.LogMessage(null); }).Constraints(Is.Matching<string>(x => x.ToLower()=="f2")); It seems a bit log winded. Is there a more sensible way of doing this?

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  • best way to find out type

    - by laspal
    hi, I have a dict val_dict - {'val1': 'abcd', 'val': '1234', 'val3': '1234.00', 'val4': '1abcd 2gfff'} All the values to my keys are string. So my question is how to find out type for my values in the dict. I mean if i say`int(val_dict['val1']) will give me error. Basically what I am trying to do is find out if the string is actual string or int or float.` if int( val_dict['val1'): dosomething else if float(val_dict['val1']): dosomething thanks

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  • Printing Two Dimensional Array in Special Format

    - by user554313
    Hello everybody, I am working in a small task that allow the user to enter the regions of any country and store them in one array. Also, each time he enters a region, the system will ask him to enter the neighbours of that entered region and store these neighbours. I did the whole task but I have a small problem: I could not be able to print each region and its neighbours like the following format: Region A: neighbour1 neighbour2 Region B: neighbour1 neighbour2 For example, let us take USA map. I want to print the result as following: Washington D.C: Texas, Florida, Oregon and so on. My code is: import java.io.*; import java.util.Arrays; import java.util.Scanner; public class Test7{public static void main(String[] args) { Scanner kb = new Scanner(System.in); System.out.print("Please enter the number of regions: "); int REGION_COUNT = kb.nextInt(); String[] regionNames = new String[REGION_COUNT]; String[][] regions = new String[REGION_COUNT][2]; for (int r = 0; r < regions.length; r++) { System.out.print("Please enter the name of region #" + (r + 1) + ": "); regionNames[r] = kb.next(); System.out .print("How many neighbors for region #" + (r + 1) + ": "); if (kb.hasNextInt()) { int size = kb.nextInt(); regions[r] = new String[size]; for (int n = 0; n < size; n++) { System.out.print("Please enter the neighbour #" + (n) + ": "); regions[r][n] = kb.next(); } } else System.exit(0); } for (int i = 0; i < REGION_COUNT; i++) { System.out.print(regionNames[i] +": "); for (int k = 0; k < 2; k++) { System.out.print(regions[i][k]+", "); } System.out.println(); } } }

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  • How to share the status on facebook form iphone app

    - by rockey
    hi all... i want to post a string to the facebook wall from my iphone app like.. sharing the status in facebook. presently i am doing like..when i press a button after logging in, i am getting a webview with the string i want to post and with buttons 'post' and 'cancel'. but i want like.. when i click the first button only(after logging in, with out the facebook webview) the string should be posted to the wall.

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  • problem while converting object into datetime in c#

    - by Lalit
    Hi, I am getting string value in object let say "28/05/2010". While i am converting it in to DateTime it is throwing exception as : String was not recognized as a valid DateTime. The Code is: object obj = ((Excel.Range)worksheet.Cells[iRowindex, colIndex_q17]).Value2; Type type = obj.GetType(); string strDate3 = string.Empty; double dbl = 0.0; if (type == typeof(System.Double)) { dbl = Convert.ToDouble(((Excel.Range)worksheet.Cells[iRowindex, colIndex_q17]).Value2); strDate3 = DateTime.FromOADate(dbl).ToShortDateString(); } else { DateTime dt = new DateTime().Date; //////////dt = DateTime.Parse(Convert.ToString(obj)); **dt = Convert.ToDateTime(obj).Date;** strDate3 = dt.ToShortDateString(); } The double star "**" line gets exception.

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  • BigInteger.ToString() returns more than 50 decimal digits.

    - by brickner
    I'm using .NET 4 System.Numerics.BigInteger Structure and I'm getting results different from the documentation. In the documentation of BigInteger.ToString() Method It says: The ToString() method supports 50 decimal digits of precision. That is, if the BigInteger value has more than 50 digits, only the 50 most significant digits are preserved in the output string; all other digits are replaced with zeros. I have some code that takes a 60 decimal digits BigInteger and converts it to a string. The 60 significant decimal digits string didn't lose any significant digits: const string vString = "123456789012345678901234567890123456789012345678901234567890"; Assert.AreEqual(60, vString.Length); BigInteger v = BigInteger.Parse(vString); Assert.AreEqual(60, v.ToString().Length); Assert.AreEqual('9', v.ToString()[58]); Assert.AreEqual('1', v.ToString()[0]); Assert.AreEqual(vString, v.ToString()); All the asserts pass. What exactly does the quoted part of the documentation mean?

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  • DoWork of BackgroundWorker is called twice when RunWorkerAsync is called once?

    - by Power-Mosfet
    I have create a backgroundworker in an class it works, but if i call and wait until the end run, call it for the second time it will do the same process twice i thinks there is somthing wrong with bw.DoWork += private void button1_Click(object sender, EventArgs e) { nptest.test.start("null", "null"); } namespace nptest { class test { public static void start(string str, string strb) { if (bw.IsBusy != true) { bw.WorkerSupportsCancellation = true; bw.DoWork += (obj, e) => bw_DoWork(str, strb); bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw_RunWorkerCompleted); bw.RunWorkerAsync(); } } private static BackgroundWorker bw = new BackgroundWorker(); private static void bw_DoWork(string str, string strb) { System.Windows.Forms.MessageBox.Show("initializing BackgroundWorker"); } private static void bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) { if ((e.Cancelled == true)) { Console.WriteLine("Canceled"); } else if (!(e.Error == null)) { Console.WriteLine("Error: " + e.Error.Message); } bw.Dispose(); } } }

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  • Error in jsp program calling servlet variable

    - by megala
    hi i created one webapplication project.It containe one servlet file jsp file. I created one string variable in servlet and assign some value like /* sampleservlet.java *******/ String s=" WELCOME" My constraints I want to display the string in my jsp file.so that i import the servlet file inj jsp and i created object as ---call--- jsp file contain following coding <%sampleservlet call ;% <%call.s% But it shows error how to solve this?

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  • XML parsing problem

    - by Albinoswordfish
    I'm having this strange XML parsing problem. I have this XML string I'm trying to parse <?xml version="1.0"?> <response status="success"> <lot>32342</lot> </response> I'm using XPath with Java in order to do this. I'm using the Xpath expression "/response/@status" to find the text "success". However whenever I evaluate this expression I get an empty string. However I am able to successfully parse this string using "/response/@type" <?xml version="1.0"?> <response type="success"> <lot>32342</lot> </response> So why would simply changing the name of the attribute change the return string to nothing? is = new InputSource(testWOcreateStrGood); xPathexpressionSuccess = xPath.compile("/response/@status"); responseStr = xPathexpressionSuccess.evaluate(is); reponseStr is the string I posted earlier with the "status" attribute

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  • How to get back Hashtable from .txt file use Properties ?

    - by tiendv
    This is code to write hastable to .txt file ! public static void save(String filename, Map<String, String> hashtable) throws IOException { Properties prop = new Properties(); prop.putAll(hashtable); FileOutputStream fos = new FileOutputStream(filename); try { prop.store(fos, prop); } finally { fos.close(); } } How we getback the hashtable from that file ? Thanks

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  • C++ - getline() keeps reading the same line over and over again for some reason

    - by Jammanuser
    I am wondering WTF my while loop which calls istream& getline ( istream& is, string& str ); keeps reading the same line again. I have the following while loop (nested down several levels of other while loops and if statements) which calls getline, but my output statement which is the first code line in the while loop's block of code tells me it is reading the same line over and over again, which explains why my output file doesn't contain the right data when my program is finished. while (getline(file_handle, buffer_str)) { cout<< buffer_str <<endl; cin.get(); if ((buffer_str.find(';', 0) != string::npos) && (buffer_str.find('\"', 0) != string::npos)) { //we're now at the end of the 'exc' initialiation statement buffer_str.erase(buffer_str.size() - 2, 1); buffer_str += '\n'; for (size_t i = 0; i < pos; i++) { buffer_str += ' '; } buffer_str += "throw(exc);\n"; for (size_t i = 0; i < (pos - 3); i++) { buffer_str += ' '; } buffer_str += '}'; } else if (buffer_str.find(search_str6, 0) != string::npos) { //we're now at the second problem line of the first case buffer_str += " {\n"; output_str += buffer_str; output_str += '\n'; getline(file_handle, buffer_str); //We're now at the beginning of the 'exc' initialiation statement output_str += buffer_str; output_str += '\n'; while (getline(file_handle, buffer_str)) { if ((buffer_str.find(';', 0) != string::npos) && (buffer_str.find('\"', 0) != string::npos)) { //we're now at the end of the 'exc' initialiation statement buffer_str.erase(buffer_str.size() - 2, 1); buffer_str += '\n'; for (size_t i = 0; i < pos; i++) { buffer_str += ' '; } buffer_str += "throw(exc);\n"; for (size_t i = 0; i < (pos - 3); i++) { buffer_str += ' '; } buffer_str += '}'; } output_str += buffer_str; output_str += '\n'; if (buffer_str.find("return", 0) != string::npos) { getline(file_handle, buffer_str); output_str += buffer_str; output_str += '\n'; about_to_break = true; break; //out of this while loop } } } if (about_to_break) { break; //out of the level 3 while loop (execution then goes back up to beginning of level 2 while loop) } output_str += buffer_str; output_str += '\n'; } Because of this problem, my if statement and then my else statement in my loop are not functioning as they should, and it doesn't break out of that loop when it should (though it eventually does break out of it, but I don't know exactly how yet). Anyone have any idea what could be causing this problem?? Thanks in advance.

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  • Mysql maven jpa skeleton

    - by coubeatczech
    Hi, is there a skeleton for a project using mysql, some eclipse/top link with RESOURCE_LOCAL as connection type? Preferably using maven. I'm searching for it for hours and can't get running even the sipmlest exaple. So if you had it ready and running, please, post :-). Even something as simple as these two classes only. @Entity public class Message implements Serializable{ public Message() {} public Message(String s){ this.s = s; } @Id String s; public String getS(){ return s; } } public class App { static private EntityManagerFactory emf; static private EntityManager em; public static void main( String[] args ) { emf = Persistence.createEntityManagerFactory("persistence"); em = emf.createEntityManager(); Message m = new Message("abc"); em.persist(m); } }

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  • why i cant read my webservice with jquery???

    - by rima
    what's my function problem?I wana read from my webservice but I just receive error :( the browser message is: "undefined- status:error" when I press button just I see the error function of my Jqueary calling but I dont know why??plz help me. function SetupCompanyInfo(companyID) { //alert('aaa'); companyID = '1'; $.ajax({ type: "POST", url: '../../../Services/CompanyServices.asmx/GetCompanyInfo', data: "{}", contentType: "application/json; charset=utf-8", dataType: "json", success: OnSuccess, error: OnError }); } function OnSuccess(data, status) { SetMainBody(data); } function OnError(request, status, error) { SetMainBody(error + '- ' + request + ' status:' + status); } my webservice: using System; using System.Web.Services; using System.Web.Script.Services; /// <summary> /// Summary description for CompanyServices /// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [ScriptService] //[System.ComponentModel.ToolboxItem(false)] public class CompanyServices : System.Web.Services.WebService { [WebMethod] public string GetCompanyInfo() { string response = "aaa"; Console.WriteLine("here"); return response.ToString(); } [WebMethod] public string GetCompanyInfo(string id) { string response = "aaa"; Console.WriteLine("here2"+id); return response.ToString(); } } my aspx file,part of head and my button code: <script src="../../Scripts/InnerFunctions.js" type="text/javascript"></script> <script src="../../Scripts/jquery-1.3.2.min.js" type="text/javascript"></script> <script src="../../Scripts/TabMenu.js" type="text/javascript"></script> <script src="Scripts/InternalFunctions.js" type="text/javascript"></script> <div dir="rtl" style="border: 1px solid #CCCCCC"> <asp:Image ID="Image1" runat="server" ImageUrl="../../generalImg/Icons/64X64/settings_Icon_64.gif" style="width: 27px; height: 26px" onclick="SetupCompanyInfo(1)" /></div>

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  • VB.NET take each letter of a word and display in ListBox

    - by Kaleet
    Private Sub btnWord_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnWord.Click Dim Inputter As String Dim Words As String = "" Do Inputter = InputBox("Enter word", "Enter Word") If Inputter <> String.Empty Then lstDisplay.Items.Add(Inputter) Word += Inputter.Substring(0, 1) End If Loop Until Inputter <> String.Empty ' SOMETHING GOES HERE!!!!!' lstDisplay.Items.Add("---") lstDisplay.Items.Add(Word) End Sub Here is how it works, when you click the button it displays an input box so for example type in "CAT". But I can't figure out how to get it to do C (newline) A (newline) T (newline) within the listbox. Please help! C A T - CAT

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  • Explain Entity Framework 4's connection strings

    - by metanaito
    I created an Entity Framework file. My database is called MyDB. My Entity Framework file is MyDB.edmx and I used an existing connection string (MyDBConnectionString) to generate the edmx model. It created two more connection strings: MyDBEntities MyDBContainer What are these for? They look exactly the same and both have the information from my old connection string. Do I still need my old connection string?

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  • databind a DropDownList control with a list of all sub directories that exist in a particular direct

    - by sushant
    I am wanting to databind a DropDownList control with a list of all sub directories that exist in a particular directory on the server. The directory I want to search is in the root of the application. I am fairly new to programming and I'm not sure where to even start. I found this code on a website: Dim root As String = "C;\" Dim folders() As String = Directory.GetDirectories(root) Dim sb As New StringBuilder(2048) Dim f As String For Each f In folders Dim foldername As String = Path.GetFileName(f) sb.Append("<option>") sb.Append(foldername) sb.Append("</option>") Next Label3.Text = "<select runat=""sever"" id=""folderlist""" & sb.ToString() & "</select>" I guess this is vb. but my tool is in asp, so is their something similar in vbscript so that I can use it.

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  • c++ protected pointer member to the same class and access privileges

    - by aajmakin
    Hi, Example code is included at the bottom of the message. I'm puzzled about the protected access specifier in a class. I have define a class node which has a protected string member name string name; and a vector of node pointers vector args; Before I thought that a member function of node could not do args[0]-name but a program that does just this does compile and run. However, now I would like to inherit this class and access the name field in one of the args array pointers from this derived class args[0]-name but this does not compile. When I compile the example code below with the commented sections uncommented, the compiler reports: Compiler output: g++ test.cc -o test test.cc: In member function 'void foo::newnode::print_args2()': test.cc:22: error: 'std::string foo::node::name' is protected test.cc:61: error: within this context Compilation exited abnormally with code 1 at Thu Jun 17 12:40:12 Questions: Why can I access the name field of the node pointers in args in class node, because this is what I would excpect from a similarly defined private field in Java. How can I access those fields from the derived class. Example code: #include <iostream> #include <vector> using namespace std; namespace foo { class node; typedef std::vector<node*> nodes; class node { public: node (string _name); void print_args (); void add_node (node* a); protected: nodes args; string name; }; } foo::node::node (string _name) : args(0) { name = _name; } void foo::node::add_node (node* a) { args.push_back(a); } void foo::node::print_args () { for (int i = 0; i < args.size(); i++) { cout << "node " << i << ": " << args[i]->name << endl; } } // namespace foo // { // class newnode : public node // { // public: // newnode (string _name) : node(_name) {} // void print_args2 (); // protected: // }; // } // void foo::newnode::print_args2 () // { // for (int i = 0; i < args.size(); i++) // { // cout << "node " << i << ": " << args[i]->name << endl; // } // } int main (int argc, char** argv) { foo::node a ("a"); foo::node b ("b"); foo::node c ("c"); a.add_node (&b); a.add_node (&c); a.print_args (); // foo::newnode newa ("newa"); // foo::newnode newb ("newb"); // foo::newnode newc ("newc"); // newa.add_node (&newb); // newa.add_node (&newc); // newa.print_args2 (); return 0; }

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  • Method parameters confusion

    - by elec
    Often time methods take more than 3 parameters which are all of the same type, eg. void mymethod (String param1, String param2, String param3) then it's very easy for the client to mix up the parameters orders, for instance inverting param1 and param2: mymethod (param2, param1, param3); ...which can be the cause of much time spent debugging what should be a trivial matter. Any tips on how to avoid this sort of mistake (apart from unit tests) ?

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  • Where is the error in my code?

    - by Lulu Larson
    /** Yields: a String that contains each capital Letter (in 'A'..'Z') whose representation is prime */ public static String primeChars() { String s = ""; // inv: s contains each capital in "A'..c-1 whose representation is prime for (char c = 'A'; c <= 'Z'; c=(char)(c+1)) { if (Loops.isPrime((int)c) == true) { s= s+1; } } // s contains each capital in 'A' ..'Z' whose rep is a prime return s; }

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