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• Why doesn't Visual Studio show an exception message when my exception occurs in a static constructor

  - by Tim Goodman

  I'm running this C# code in Visual Studio in debug mode: public class MyHandlerFactory : IHttpHandlerFactory { private static Dictionary<string, bool> myDictionary = new Dictionary<string, bool>(); static MyHandlerFactory() { myDictionary.Add("someKey",true); myDictionary.Add("someKey",true); // fails due to duplicate key } } Outside of the static constructor, when I get to the line with the error Visual Studio highlights it and pops up a message about the exception. But in the static constructor I get no such message. I am stepping through line-by-line, so I know that I'm getting to that line and no further. Why is this? (I have no idea if that fact that my class implements IHttpHandlerFactory matters, but I included it just in case.) This is VS2005, .Net 2.0

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• Android: onClick on LinearLayout with TextView and Button

  - by Terry

  I have a Fragment that uses the following XML layout: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/card" android:clickable="true" android:onClick="editActions" android:orientation="vertical" > <TextView android:id="@+id/title" style="@style/CardTitle" android:layout_width="wrap_content" android:layout_height="wrap_content" android:duplicateParentState="true" android:text="@string/title_workstation" /> <Button android:id="@+id/factory_button_edit" style="?android:attr/buttonStyleSmall" android:layout_width="wrap_content" android:layout_height="wrap_content" android:duplicateParentState="true" android:text="@string/label_edit" /> </LinearLayout> As you can see, I have an onClick parameter set on LinearLayout. Now on the TextView this one is triggered correctly, and on all empty area. Just on the Button it doesn't invoke the onClick method that I set. Is this normal? What do I have to do so that the onClick method is invoked everywhere on the LinearLayout?

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• JDBC connections: How to specify the port for data-transfer?

  - by LeO

  I wanto to run my JDBC-connection (either Oracle or MSSQL) through a proxy-server. Reason for this is to have additional controls of the traffic, especially for developing. I know, I could specify the proxy, which runs on my machine, and the port in the connection-string. But the specified connection-settings are only taken as some kind of handshake to agree on which port the data is finally transferred. And this is defenitly not the port which I have under proxy-control. So, does anybody have an idea, how to specify the port for the data-transfer? I would prefer if this could be done in the connection-string. The same issue applies for Oracle and MSSQL. Thx LeO

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• dotConnect LINQ to MySQL Issue

  - by Saravanan I M

  I am using dotConnect LINQ to MySQL and i have the following error. what would be the cause for this issue annot convert parameter value of type 'System.String' to MySQL type 'MySqlType.TimeStamp'. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidCastException: Cannot convert parameter value of type 'System.String' to MySQL type 'MySqlType.TimeStamp'. Source Error: Line 93: { Line 94: string loginLowered = login.ToLower(); Line 95: return context.ISVs.Where(u = u.Email == loginLowered).SingleOrDefault() == null; Line 96: Line 97: }

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• How to recursively serialize an object using reflection ?

  - by Tony

  I want to navigate to the N-th level of an object, and serialize it's properties in String format. For Example: class Animal { public String name; public int weight; public Animal friend; public Set<Animal> children = new HashSet<Animal>() ; } should be serialized like this: {name:"Monkey", weight:200, friend:{name:"Monkey Friend",weight:300 ,children:{...if has children}}, children:{name:"MonkeyChild1",weight:100,children:{... recursively nested}} } And you may probably notice that it is similar to serializing an object to json. I know there're many libs can do this, can you give me some instructive ideas on how to write this?

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• QPluginLoader with PyQt modules as plugins: possible?

  - by Thorfin

  Hi! I have a C++ application that loads externals plugins thanks to QPluginloader. QPluginLoader provides access to a Qt plugin. A Qt plugin is stored in a shared library (a DLL). The plugins have to inherit from a pure virtual class ( and Q_DECLARE_INTERFACE ) and QObject. I would like to create plugins by using python and PyQt. Is this possible without too much work? For instance if I have to convert the modules to C++ with boost::python, this could be nonsense, as PyQt is already a conversion from C++ to Python... Thanks!

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• What is the new line marker in an uploaded Word doc?

  - by Donde

  I am attempting to uplaod a Word doc and then write it line by line in HTML. I made a referecne to the Microsoft Word Object Library. Then I use the following code to grab the and put it in a string variable. However, I have tried multiple regex statements to replace the new line character with "" but nothing I have tried has worked... Dim wordApp As New Microsoft.Office.Interop.Word.Application Dim wordDoc As New Microsoft.Office.Interop.Word.Document Dim file As Object = "C:\test.doc" Dim nullobj As Object = System.Reflection.Missing.Value wordDoc = wordApp.Documents.Open(file, nullobj, nullobj, nullobj, nullobj, nullobj, nullobj, nullobj, nullobj, nullobj, nullobj, nullobj) Dim strArticle As String = wordDoc.Content.Text 'It's not finding the new line marker here strArticle = Regex.Replace(strArticle, ControlChars.NewLine, "<BR>")

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• How can I stop IIS7 from using HttpHandlers?

  - by mcintyre321

  I'm having a bit of a play around with IIS7, just trying to catch events manually in global.asax and skip the ASP pipeline entirely. To this end, I've set <httpHandlers> <clear/> </httpHandlers> <httpModules> <clear/> </httpModules> but when I call the server I get a YSOD [HttpException]: No http handler was found for request type 'GET' at System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) at System.Web.HttpApplication.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) What do I need to do to completely prevent IIS from handling things? What I want is just to do Response.Writes in event handlers and async methods set up in HttpApplication.Init

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• Lucene.NET and searching on multiple fields with specific values...

  - by Kieron

  Hi, I've created an index with various bits of data for each document I've added, each document can differ in it field name. Later on, when I come to search the index I need to query it with exact field/ values - for example: FieldName1 = X AND FieldName2 = Y AND FieldName3 = Z What's the best way of constructing the following using Lucene .NET: What analyser is best to use for this exact match type? Upon retrieving a match, I only need one specific field to be returned (which I add to each document) - should this be the only one stored? Later on I'll need to support keyword searching (so a field can have a list of values and I'll need to do a partial match). The fields and values come from a Dictionary<string, string>. It's not user input, it's constructed from code. Thanks, Kieron

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• How to avoid null pointer error

  - by Jessy

  I trying to find whether the elements of 2 arrayLists are match or not. But this code give me error Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException since some of the elements are null. How can I solved this problem? String level []={"High","High","High","High","High","High"}; ArrayList<Object> n = new ArrayList<Object>(Arrays.asList(level)); String choice []={null,"High","Low","High",null,"Medium"}; ArrayList<Object> m = new ArrayList<Object>(Arrays.asList(choice)); //Check if the two arrayList are identical for(int i=0; i<m.size(); i++){ if(!(m.get(i).equals(n.get(i)))){ result= true; break; } } return result; }

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• Encoding problem with preg_replace() and scandir()

  - by itarato

  Hi, On OS-X (PHP5.2.11) I have a file: siësta.doc (and thousand other with Unicode filenames) and I want to convert the file names to a web-consumable format (a-zA-Z0-9.). If I hardcode the file name above I can do the right conversion: <?php $file = 'siësta.doc'; echo preg_replace("/[^a-zA-Z0-9.]/u", '_', $file); // Output: si_sta.doc ?> But if I read the file names with scandir, I've got strange conversions: <?php $files = scandir(DIRNAME); foreach ($files as $file) { echo preg_replace("/[^a-zA-Z0-9.]/u", '_', $file); // Output for the file above: sie_sta.doc } ?> I tried to detect the encoding, set the encoding, convert it with iconv functions. I tried the mb_ functions also. But it was just worse. What did I do wrong? Thanks in advance

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• Connect MySQL database from Android

  - by Mistry Hardik

  hello people! well this is the code snippet i use to access the getUser.php to retrive user details from a MySQL database in my application: String result = ""; //the year data to send ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); nameValuePairs.add(new BasicNameValuePair("uid","demo")); //http post try{ HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://192.xxx.xx.xxx/getUser.php"); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); HttpResponse response = httpclient.execute(httppost); HttpEntity entity = response.getEntity(); InputStream is = entity.getContent(); }catch(Exception e){ Log.e("log_tag", "Error in http connection "+e.toString()); } //convert response to string try{ InputStream is = null; BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8); StringBuilder sb = new StringBuilder(); String line = null; while ((line = reader.readLine()) != null) { sb.append(line + "\n"); } is.close(); result=sb.toString(); }catch(Exception e){ Log.e("log_tag", "Error converting result "+e.toString()); } //parse json data try{ JSONArray jArray = new JSONArray(result); for(int i=0;i<jArray.length();i++){ JSONObject json_data = jArray.getJSONObject(i); Log.i("log_tag","id: "+json_data.getInt("id")+ ", name: "+json_data.getString("fname")+ ", sex: "+json_data.getInt("sex")+ ", birthyear: "+json_data.getInt("dob") ); } } catch(JSONException e){ Log.e("log_tag", "Error parsing data "+e.toString()); } } This snippet is taken from http://helloandroid.com Everything is configured fine: the MySQL Db, IIS with FASTCGi, PHP tools and drivers. even the script below when called from browser with url: http://192.xxx.xx.x.xxx/getUser.php?uid=demo works fine, But returns error in android with java.lang.NullPointerException and org.json.JSONEXCEPTION: End of input at character 0 <?php mysql_connect("myhost","username","pwd"); mysql_select_db("mydb"); $q=mysql_query("SELECT * FROM userinfo WHERE uid ='".$_REQUEST['uid']."'"); while($e=mysql_fetch_assoc($q)) $output[]=$e; print(json_encode($output)); mysql_close(); ?> Can anybody help in this section? Regards, Mistry Hardik

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• DataGridView selectedRow Property not get Data if i double click Row?

  - by programmerist

  i click double dataGridView's any row. Not get Data clicked row data: private void gwStudies_CellDoubleClick(object sender, DataGridViewCellEventArgs e) { GoruntuyuAc(); } private void GoruntuyuAc() { olduid = ""; DataRowView ro = (gwStudies.SelectedRows[0].DataBoundItem as DataRowView); string uid = ""; uid = ro["StudyInstanceUid"].ToString(); string tarih = ""; DateTime t1 = Convert.ToDateTime(ro["StudyDate"]); //........ //............ } Error Data on (gwStudies.SelectedRows[0].DataBoundItem as DataRowView); IMAGE:

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• What does this rake db:seed error mean?

  - by Kenji Kina

  I've been trying to solve this problem for a couple of hours but I can't seem to understand what's going on. I'm using Rails 3 beta, and want to seed some data to the database. However, when I try to seed some values through db:seed, I get this error: rake aborted! Attribute(#81402440) expected, got Array(#69024170) The seeds.rb is: DataType.delete_all DataType.create( :name => 'String' ) And I got these classes: class DataType < ActiveRecord::Base has_many :attributes end class Attribute < ActiveRecord::Base belongs_to :data_types end While the migration definition for DataType is merely: class CreateDataTypes < ActiveRecord::Migration def self.up create_table :data_types do |t| t.string :name t.timestamps end end def self.down drop_table :data_types end end Can anyone tell me what I'm doing wrong?

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• How to define an Integer bean in Struts 1.x

  - by ian_scho_es

  Hi. How do you instantiate an Integer bean, assigning a value, in the Struts 1.x framework? <bean:define id="index" type="java.lang.Integer" value="0"/> or <bean:define id="index" type="java.lang.Integer" value="${0}"/> Results in a: java.lang.ClassCastException: java.lang.String <bean:define id="index" type="java.lang.Integer" value="<%=0%>"/> Results in: The method setValue(String) in the type DefineTag is not applicable for the arguments (int) <% java.lang.Integer index = new java.lang.Integer(0); %> Works, but makes my eyes bleed. Note that I had to refactor iterating over a list but am now applying a filter within the iteration. This was the cleanest solution of all! <logic:equal name="aplicacion" property="generico" value="false" indexId="index"> Maybe I need to go about this completely differently. Many thanks.

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• mybase.showdialog event fired without apparent reason

  - by António Mendes

  Hi, i'm new to vb .net and oop although i have learned the basics. I'm working in VB and .NET CF 3.5 and i'm trying to pass and received a value with showdialog. The issue here is when i'm done with a procedure in Load, for some reason MyBase.Showdialog (line 3) gives an error of "NullReferenceException was unhandled", but the same procedure doesn't have anything to do with Showdialog. Also, this same error happens with me in other forms when i use AlphaImageButton from AlphaMobileControls. I even created an custom AlphaImageButton with a DialogResult Property and set it to None with no avail. Public Overloads Function ShowDialog(ByRef sArg As String) As String sParam = Split(sArg, vbTab) sArtigo = sParam(0) If MyBase.ShowDialog() = Windows.Forms.DialogResult.OK Then Return lblQuant.Text End If Return Nothing End Function

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• CPP extension and multiline literals in Haskell

  - by jetxee

  Is it possible to use CPP extension on Haskell code which contains multiline string literals? Are there other conditional compilation techniques for Haskell? For example, let's take this code: -- If the next line is uncommented, the program does not compile. -- {-# LANGUAGE CPP #-} msg = "Hello\ \ Wor\ \ld!" main = putStrLn msg If I uncomment {-# LANGUAGE CPP #-}, then GHC refutes this code with a lexical error: [1 of 1] Compiling Main ( cpp-multiline.hs, cpp-multiline.o ) cpp-multiline.hs:4:17: lexical error in string/character literal at character 'o' Using GHC 6.12.1, cpphs is available. I confirm that using cpphs.compat wrapper and -pgmP cpphs.compat option helps, but I'd like to have a solution which does not depend on custom shell scripts. -pgmP cpphs does not work. P.S. I need to use different code for GHC < 6.12 and GHC = 6.12, is it possible without preprocessor?

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• Is there a way to read what NSLog is writing from within the app?

  - by Jared P

  I have already tried stderr = stdout = fopen("/Users/Jared/Desktop/Untitled.txt", "w"); just as a test (obvi not production code) and this works fine for printf and some errors, but fails to redirect NSLog. I would like to be able to read what is being sent to NSLog as a string, and preferably prevent it from actually going into the system logs, although I don't particularly care if it has to. I need it to redirect logging from both my own code and apple's frameworks, which is why I can't just write a function that would append logs to a string. Thanks

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• autoLink for map not working

  - by OceanBlue

  I have the following TextView in my XML layout file:- <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/autolink_test" android:autoLink="all" /> The string autolink_test contains a phone number, an email address, a website address and a physical geographical address. While the first three are showing up correctly as clickable autolinks, the address does not. Only the zipcode part shows up as an autolink... and that too as a phone number! (When I click it, the phone dialer starts up with that number). Any help would be appreciated.

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• ASP.NET - dynamically creating database connection in datasets

  - by Foo

  I am currently using datasets for my data access layer. I currently store the connection string in the web.config file. I need the ability to change the connection to another database before any queries are processed. Is there an event that is triggered or a base class that can be modified that intercepts the process of retrieving the connection string from the web.config file? Is there any way to handle multiple database connections using the same code base and also take advantage of the connection pooling? I understand the best method is to get rid of datasets and use custom data objects. Any ideas?

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• How do I load SciLexer.dll in Visual Studio 2008 Designer, on Windows 7 64-bit?

  - by Filini

  We develop a WinForm application using Scintilla.NET (1.7) component, which uses SciLexer.dll (unamnaged). At run-time, we distribute both 32bit and 64bit SciLexer.dll, and we load the correct one when the application starts (everything works fine). On our new development environments (Windows 7 64-bit), all our solutions build and run just fine, but the WinForm visual designer does not load our forms/controls which use Scintilla.NET, because it cannot load the correct SciLexer.dll: Window class name is not valid. at System.Windows.Forms.NativeWindow.WindowClass.RegisterClass() at System.Windows.Forms.NativeWindow.WindowClass.Create(String className, Int32 classStyle) at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp) at System.Windows.Forms.Control.CreateHandle() at System.Windows.Forms.Control.get_Handle() at Scintilla.ScintillaControl.SendMessageDirect(UInt32 msg, IntPtr wParam, IntPtr lParam) at Scintilla.ScintillaControl.SendMessageDirect(UInt32 msg) at Scintilla.ScintillaControl.get_CodePage() at Scintilla.ScintillaControl..ctor(String sciLexerDllName) at Scintilla.ScintillaControl..ctor() Where does Visual Studio 2008 look for unmanaged libraries? I tried putting the 64-bit SciLexer.dll in SysWOW64, in the folder where ScintillaNET.dll is referenced, adding a folder in PATH system variable, adding a folder reference in the project, but I keep getting this error. Any help is appreciated.

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• Join query in doctrine symfony

  - by THOmas

  I have two tables userdetails and blog question The schema is UserDetails: connection: doctrine tableName: user_details columns: id: type: integer(8) fixed: false name: type: string(255) fixed: false BlogQuestion: connection: doctrine tableName: blog_question columns: question_id: type: integer(8) fixed: false unsigned: false primary: true autoincrement: true blog_id: type: integer(8) fixed: false user_id: type: integer(8) fixed: false question_title: type: string(255) I am using one join query for retrieving all the questions and user details from this two tables My join query is $q = Doctrine_Query::create() ->select('*') ->from('BlogQuestion u') ->leftJoin('u.UserDetails p'); $q->execute(); But it is showing this error Unknown relation alias UserDetails Pls anybody help me Thanks in advance

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• Csharp component which generates fragments with highlights for diffs for 2 strings

  - by MicMit

  I need C# implementation ( ideally open source ) which is similar to Delphi DLL. I am currently using the wrapper ( C# syntax is provided , but it is a call from a different language ) zdiff( string ref str1, string ref str2, int range , int trim ) it calls inside str1 = GetHiDiff(@str1,1,trim) str2 = GetHiDiff(@str1,2,trim) where function GetHiDiff(s:pchar; sIndex:integer; wtrim:integer): pchar; stdcall; What it does it returns a left fragment html of str1 and a right html fragment of str2 with diffs highlighted as strings are passed by reference. Range parameter determines the size of html fragment. Not sure what trim 0 does.

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• java.sql.SQLException: Parameter number X is not an OUT parameter

  - by Frederik

  Hi guys, I'm struggling with getting the result OUT variable from a MySQL stored procedure. I get the following error: java.sql.SQLException: Parameter number 3 is not an OUT parameter The stored procedure looks like this: CREATE DEFINER=`cv_admin`@`localhost` PROCEDURE `CheckGameEligibility`( IN gID INT(10), IN uID INT(10), OUT result TINYINT(1) ) BEGIN # Do lots of stuff, then eventually: SET result = 1; END My java function takes an array of strings* and creates the CallableStatement object dynamically: public static int callAndReturnResult( String sql , String[] values ) { int out = 0 ; try { // construct the SQL. Creates: CheckGameEligibility(?, ?, ?) sql += "(" ; for( int i = 0 ; i < values.length ; i++ ) { sql += "?, " ; } sql += "?)" ; System.out.println( "callAndReturnResult("+sql+"): constructed SQL: " + sql ); // Then the statement CallableStatement cstmt = DB.prepareCall( sql ); for( int i = 0 ; i < values.length ; i++ ) { System.out.println( " " + (i+1) + ": " + values[ i ] ) ; cstmt.setString(i+1, values[ i ] ); } System.out.println( " " + (values.length+1) + ": ? (OUT)" ) ; cstmt.registerOutParameter( values.length + 1 , Types.TINYINT ); cstmt.execute(); out = cstmt.getInt( values.length ); cstmt.close(); } catch( Exception e ) { System.out.println( "*** db trouble: callAndReturnResult(" + sql + " failed: " + e ); e.printStackTrace() ; } return out ; } *) I suppose I should be using an int array instead of a string array, but it doesn't seem to be what the error message was about. Anyway, here's the output it generates: callAndReturnResult(CheckGameEligibility(?, ?, ?)): constructed SQL: CheckGameEligibility(?, ?, ?) 1: 57 2: 29 3: ? (OUT) *** db trouble: callAndReturnResult(CheckGameEligibility(?, ?, ?) failed: java.sql.SQLException: Parameter number 3 is not an OUT parameter at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:929) at com.mysql.jdbc.CallableStatement.checkIsOutputParam(CallableStatement.java:692) at com.mysql.jdbc.CallableStatement.registerOutParameter(CallableStatement.java:1847) at org.apache.commons.dbcp.DelegatingCallableStatement.registerOutParameter(DelegatingCallabl>eStatement.java:92) at Tools.callAndReturnResult(Tools.java:156) Any ideas what might be the problem? :) Thanks in advance!

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• Unable to capture standard output of process using Boost.Process

  - by Chris Kaminski

  Currently am using Boost.Process from the Boost sandbox, and am having issues getting it to capture my standard output properly; wondering if someone can give me a second pair of eyeballs into what I might be doing wrong. I'm trying to take thumbnails out of RAW camera images using DCRAW (latest version), and capture them for conversion to QT QImage's. The process launch function: namespace bf = ::boost::filesystem; namespace bp = ::boost::process; QImage DCRawInterface::convertRawImage(string path) { // commandline: dcraw -e -c <srcfile> -> piped to stdout. if ( bf::exists( path ) ) { std::string exec = "bin\\dcraw.exe"; std::vector<std::string> args; args.push_back("-v"); args.push_back("-c"); args.push_back("-e"); args.push_back(path); bp::context ctx; ctx.stdout_behavior = bp::capture_stream(); bp::child c = bp::launch(exec, args, ctx); bp::pistream &is = c.get_stdout(); ofstream output("C:\\temp\\testcfk.jpg"); streamcopy(is, output); } return (NULL); } inline void streamcopy(std::istream& input, std::ostream& out) { char buffer[4096]; int i = 0; while (!input.eof() ) { memset(buffer, 0, sizeof(buffer)); int bytes = input.readsome(buffer, sizeof buffer); out.write(buffer, bytes); i++; } } Invoking the converter: DCRawInterface DcRaw; DcRaw.convertRawImage("test/CFK_2439.NEF"); The goal is to simply verify that I can copy the input stream to an output file. Currently, if I comment out the following line: args.push_back("-c"); then the thumbnail is written by DCRAW to the source directory with a name of CFK_2439.thumb.jpg, which proves to me that the process is getting invoked with the right arguments. What's not happening is connecting to the output pipe properly. FWIW: I'm performing this test on Windows XP under Eclipse 3.5/Latest MingW (GCC 4.4).

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