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  • When does CSIDL_LOCAL_APPDATA path not exist?

    - by psychotik
    On a few Windows Vista Home Premium systems, the following returns an empty string: wstring appData = GetSpecialFolderLocation(CSIDL_LOCAL_APPDATA); Any ideas what would make that happen? What's another equivalent path I can use for storing app data (currently user accessible only, not requiring elevation)?

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  • How to use Delphi's AsCurrency to show currency without currency symbol?

    - by croceldon
    I'm trying to display a currency value in a grid, but I do not want the currency symbol to be shown: if fPreferences.WorksheetFormat = 'Numeric' then begin CurrencyString := ''; Value := FieldByName('UnitList').AsCurrency; end else Value := CurrToStrF(FieldByName('UnitList').AsCurrency, ffCurrency, 2, langFormat); The problem is that it's still showing the currency symbol. What am I doing wrong here? I don't think I can use CurrToStrF, because I need the grid to export a number to excel, not a string.

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  • Seeking STL-aware c++filt

    - by Don Wakefield
    In my development environment, I'm compiling a code base using GNU C++ 3.4.6. Code is under development, and unfortunately crashes now and then. It's nice to be able to run the traceback through a demangler, and I use c++filt 3.4. The problem comes when functions have a number of STL parameters. Consider My_callback::operator()( Status&, std::set<std::string> const&, std::vector<My_parameter*> const&, My_attribute_set const&, std::vector<My_parameter_base*> const&, std::vector<My_parameter> const&, std::set<std::string> const& ) { // ... } When this function is in the traceback, the mangled output on my platform is: (_ZN30My_callbackclER11StatusRKSt3setISsSt4lessISsESaISsEERKSt6vectorIP13My_parameterSaISB_EERK17My_attribute_setRKS9_IP18My_parameter_baseSaISK_EERKS9_ISA_SaISA_EES8_+0x76a) [0x13ffdaa] c++filt kindly demangles it to (My_callback::operator()(Status&, std::set<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::vector<My_parameter*, std::allocator<My_parameter*> > const&, My_attribute_set const&, std::vector<My_parameter_base*, std::allocator<My_parameter_base*> > const&, std::vector<My_parameter, std::allocator<My_parameter> > const&, std::set<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&)+0x76a) [0x13ffdaa] This is the same problem as compiler errors encountered when using templates. However, the STL is a fairly regular and recognizable package of templates. So what I'm hoping is that someone out there has created an enhanced version of c++filt which would dump something closer to the original function signature. Any hints?

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  • how to put a drop down list in a flex advanced data grid

    - by Setori
    How can one put components into an advanced data grid? I wish to have a standard row with string items, in this row there is a date selector I want to put in, and in another cell of the row I want to put a drop down list box containing text "40" and "20" or you can manually edit the cell so that it displays what ever input you decide (other than 40 and 20) thanks so much

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  • Mulitple lines in make

    - by Navi
    I am trying to store a multiline string in a variable in make var=$(shell cat <<End-of-message \ -------------------------------------\ This is line 1 of the message.\ This is line 2 of the message.\ This is line 3 of the message.\ This is line 4 of the message.\ This is the last line of the message.\ -------------------------------------\ End-of-message) printit: @echo ${var} This doesn't work, so I am wondering if this is possible at all. I need to preserve the newlines here and shell is converting them in spaces. Any suggestions?

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  • Count words like Microsoft Word does

    - by Maarten
    I need to count words in a string using PHP or Javascript (preferably PHP). The problem is that the counting needs to be the same as it works in Microsoft Word, because that is where the people assemble their original texts in so that is their reference frame. PHP has a word counting function (http://php.net/manual/en/function.str-word-count.php) but that is not 100% the same as far as I know. Any pointers?

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  • How to tell GDB to flush the stdio of the program being debugged

    - by Yorkwar
    The stdio is usually buffered. When I hit a breakpoint and there's a printf before the breakpoint, the printed string may still be in the buffer and I can not see it. I know I can flush the stdio by adding some flush code in the program. Without doing this, is there any way to tell GDB to flush the stdio of the program being debugged after GDB stops? This way is more friendly when debugging a program.

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  • Use Rails 3's ActiveSupport core extensions outside rails

    - by changelog
    Hi guys. I'm having a problem using ActiveSupport's core extensions on a gem I am developing. I had it working with AS 2.3.8, but as soon as I wanted to port it to 3b4, the extensions stopped working and my test results are filled with lines such as: undefined method `blank?' for "something":String I've included it via gem "activesupport" followed by require "active_support" Is there anything else I need to call to include those extensions? Thanks

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  • warning: returning reference to temporary

    - by Jack
    I have a function like this const string &SomeClass::Foo(int Value) { if (Value < 0 or Value > 10) return ""; else return SomeClass::StaticMember[i]; } I get warning: returning reference to temporary. Why is that? I thought the both values the function returns (reference to const char* "" and reference to a static member) cannot be temporary.

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  • in java I use "import",in C# I use "using",in vb6 what I should use ?

    - by user292084
    for example. I write a mothed Private Sub Command1_Click() Dim dom As New DOMDocument Dim http As New XMLHTTP Dim strRet As String If Not dom.Load("c:\voucher.xml") Then MsgBox "?????" http.Open "Post", "http://172.31.132.173/u8eai/import.asp", True '?????ASP http.send dom.xml '?xml???????? strRet = http.responseText ' End Sub I should import "DOMDocument","XMLHTTP" and so on, what should I do ?

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  • Rails 3 HTTP digest authentication

    - by Cimm
    Is HTTP digest authentication still supported in Rails 3? I tried the following code in Rails 2.3.5, it works. class Admin::BaseController < ApplicationController before_filter :authenticate USERS = { "lifo" => "world" } def authenticate authenticate_or_request_with_http_digest("Application") do |name| USERS[name] end end end Now, the same thing in Rails 3.0.0.beta) returns an error: can't convert nil into String Am I missing something or is this a bug in Rails 3? HTTP basic authentication works fine.

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  • What makes the availability of both primitive and object-wrapped values in JavaScript useful?

    - by Delan Azabani
    I wrote a blog post a while ago detailing how the availability of both primitive and object-wrapped value types in JavaScript (for things such as Number, String and Boolean) causes trouble, including but not limited to type-casting to a boolean (e.g. object-wrapped NaN, "" and false actually type-cast to true). My question is, with all this confusion and problems, is there any benefit to JavaScript having both types of values for the built-in classes?

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  • Newlines in the Immediate Window

    - by Bob Kaufman
    Using Visual Studio 2010 Professional, I have a ToString() method that looks like this: public override string ToString() { return "something" + "\n" + "something"; } Because there are several "something"'s and each is long, I'd like to see something something Sadly, I'm seeing "something\nsomething" Is there a way to get what I want?

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  • QValidator for hex input

    - by Evan Teran
    I have a Qt widget which should only accept a hex string as input. It is very simple to restrict the input characters to [0-9A-Fa-f], but I would like to have it display with a delimiter between "bytes" so for example if the delimiter is a space, and the user types 0011223344 I would like the line edit to display 00 11 22 33 44 Now if the user presses the backspace key 3 times, then I want it to display 00 11 22 3. I almost have what i want, so far there is only one subtle bug involving using the delete key to remove a delimiter. Does anyone have a better way to implement this validator? Here's my code so far: class HexStringValidator : public QValidator { public: HexStringValidator(QObject * parent) : QValidator(parent) {} public: virtual void fixup(QString &input) const { QString temp; int index = 0; // every 2 digits insert a space if they didn't explicitly type one Q_FOREACH(QChar ch, input) { if(std::isxdigit(ch.toAscii())) { if(index != 0 && (index & 1) == 0) { temp += ' '; } temp += ch.toUpper(); ++index; } } input = temp; } virtual State validate(QString &input, int &pos) const { if(!input.isEmpty()) { // TODO: can we detect if the char which was JUST deleted // (if any was deleted) was a space? and special case this? // as to not have the bug in this case? const int char_pos = pos - input.left(pos).count(' '); int chars = 0; fixup(input); pos = 0; while(chars != char_pos) { if(input[pos] != ' ') { ++chars; } ++pos; } // favor the right side of a space if(input[pos] == ' ') { ++pos; } } return QValidator::Acceptable; } }; For now this code is functional enough, but I'd love to have it work 100% as expected. Obviously the ideal would be the just separate the display of the hex string from the actual characters stored in the QLineEdit's internal buffer but I have no idea where to start with that and I imagine is a non-trivial undertaking. In essence, I would like to have a Validator which conforms to this regex: "[0-9A-Fa-f]( [0-9A-Fa-f])*" but I don't want the user to ever have to type a space as delimiter. Likewise, when editing what they types, the spaces should be managed implicitly.

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  • Escape apostrophes inside double quoted strings (Javascript)

    - by George Sheppard
    Say i have a string that i need to evaluate in javascript such as : window.some_class.update( 'Runner', 'update_runner', '{"runner":{"id":"1","name":"Nin's Lad" } }'); In order for eval() to evaluate it, i need to escape the apostrophe in runner_name (Nin's Lad). Is this possable with regex? I dont want to escape the single quotes around Runner and update_runner. I'd just like to escape any single quotes inside double quotes. Thanks,

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  • Access Insert Query

    - by tecno
    Hi, I am using C# to write/read to an Access 2007 Database. The table is ID - AutoNumber [pkey] Fname - Text Lname - Text Address - Text The query string I Use is "Insert into TblMain (Fname,Lname,Address) Values ('"+fname+"','"+lname+"','"+adrs+"')" No errors are returned, the query executes but data is not added to the db. Inserting to table using which does not have an autonumber data column works perfectly. What am I missing?

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  • How do I find multiple matches with one regular expression?

    - by christian studer
    I've got the following string: response: id="1" message="whatever" attribute="none" world="hello" The order of the attributes is random. There might be any number of other attributes. Is there a way to get the id, message and world attribute in one regular expression instead of applying the following three one after another? / message="(.*?)"/ / world="(.*?)"/ / id="(.*?)"/

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  • Retrieving/Updating Entity Framework POCO objects that already exist in the ObjectContext

    - by jslatts
    I have a project using Entity Framework 4.0 with POCOs (data is stored in SQL DB, lazyloading is enabled) as follows: public class ParentObject { public int ID {get; set;} public virtual List<ChildObject> children {get; set;} } public class ChildObject { public int ID {get; set;} public int ChildRoleID {get; set;} public int ParentID {get; set;} public virtual ParentObject Parent {get; set;} public virtual ChildRoleObject ChildRole {get; set;} } public class ChildRoleObject { public int ID {get; set;} public string Name {get; set;} public virtual List<ChildObject> children {get; set;} } I want to create a new ChildObject, assign it a role, then add it to an existing ParentObject. Afterwards, I want to send the new ChildObject to the caller. The code below works fine until it tries to get the object back from the database. The newChildObjectInstance only has the ChildRoleID set and does not contain a reference to the actual ChildRole object. I try and pull the new instance back out of the database in order to populate the ChildRole property. Unfortunately, in this case, instead of creating a new instance of ChildObject and assigning it to retreivedChildObject, EF finds the existing ChildObject in the context and returns the in-memory instance, with a null ChildRole property. public ChildObject CreateNewChild(int id, int roleID) { SomeObjectContext myRepository = new SomeObjectContext(); ParentObject parentObjectInstance = myRepository.GetParentObject(id); ChildObject newChildObjectInstance = new ChildObject() { ParentObject = parentObjectInstance, ParentID = parentObjectInstance.ID, ChildRoleID = roleID }; parentObjectInstance.children.Add(newChildObjectInstance); myRepository.Save(); ChildObject retreivedChildObject = myRepository.GetChildObject(newChildObjectInstance.ID); string assignedRoleName = retreivedChildObject.ChildRole.Name; //Throws exception, ChildRole is null return retreivedChildObject; } I have tried setting MergeOptions to Overwrite, calling ObjectContext.Refresh() and ObjectContext.DetectChanges() to no avail... I suspect this is related to the proxy objects that EF injects when working with POCOs. Has anyone run into this issue before? If so, what was the solution?

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  • Inserting contact with android and querying the result uri returns no entries

    - by th0m4d
    Im developing an application which is dealing with the android contacts API. I implemented methods to insert, update and query contacts. So far everything worked (writing and reading contacts). At one point in my project Im experiencing a strange behaviour. I insert a contact using batch mode. I receive the URI to the RawContact. I do this in a background thread. // use batchmode for contact insertion ArrayList ops = new ArrayList(); int rawContactInsertIndex = ops.size(); // create rawContact ops.add(ContentProviderOperation.newInsert(RawContacts.CONTENT_URI) .withValue(RawContacts.ACCOUNT_TYPE, ConstantsContract.ACCOUNT_TYPE) .withValue(RawContacts.ACCOUNT_NAME, accountName).build()); ops.add(createInsertOperation().withValueBackReference(Data.RAW_CONTACT_ID, rawContactInsertIndex) .withValue(Data.MIMETYPE, StructuredName.CONTENT_ITEM_TYPE) .withValue(StructuredName.DISPLAY_NAME, displayName).withValue(StructuredName.GIVEN_NAME, firstName) .withValue(StructuredName.FAMILY_NAME, lastName).build()); //other data values... ContentProviderResult[] results = context.getContentResolver().applyBatch(ContactsContract.AUTHORITY, ops); if (results.length 0) { result = results[0]; } Then i request and store the lookup uri RawContacts.getContactLookupUri(this.getContentResolver(), myContantRawContactUri); I am able to query the contact using the rawContactUri directly after inserting it (in the same thread). The lookup uri returns null. Uri rawContactUri = appUser.getRawContactUri(ctx); if (rawContactUri == null) { return null; } String lastPathSegment = rawContactUri.getLastPathSegment(); long rawContactId = Long.decode(lastPathSegment); if (rawContactUri != null) { contact = readContactWithID(rawContactId, ContactsContract.Data.RAW_CONTACT_ID); In a different place in the project I want to query the contact i inserted by the stored lookup uri or raw contact uri. Both return no rows from the content provider. I tried it in the main thread and in another background thread. ctx.getContentResolver().query(ContactsContract.Data.CONTENT_URI, null, ContactsContract.Data.RAW_CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?", new String[] { contactID + "", ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE }, null); My first thought was that it could be related to the context.getContentResolver(). But the android documentation states, that the ContentResolver objects scope is the application's package, so you have on ContentResolver for the whole app. Am I right? What am I doing wrong? Why does the same rawContactUri return the contact at one place and does not on another place? And why do I get a lookup uri from a raw contact, which is not working at all?

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