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  • Unresolved external symbol error in c++

    - by Crystal
    I am trying to do a simple hw problem involving namespace, static data members and functions. I am getting an unresolved external symbol error Error 1 error LNK2001: unresolved external symbol "private: static double JWong::SavingsAccount::annualInterestRate" (?annualInterestRate@SavingsAccount@JWong@@0NA) SavingsAccount.obj SavingsAccount And I don't see why I am getting this error. Maybe I don't know something about static variables compared to regular data members that is causing this error. Here is my code: SavingsAccount.h file #ifndef JWONG_SAVINGSACCOUNT_H #define JWONG_SAVINGSACCOUNT_H namespace JWong { class SavingsAccount { public: // default constructor SavingsAccount(); // constructor SavingsAccount(double savingsBalance); double getSavingsBalance(); void setSavingsBalance(double savingsBalance); double calculateMonthlyInterest(); // static functions static void modifyInterestRate(double newInterestRate); static double getAnnualInterestRest(); private: double savingsBalance; // static members static double annualInterestRate; }; } #endif SavingsAccount.cpp file #include <iostream> #include "SavingsAccount.h" // default constructor, set savingsBalance to 0 JWong::SavingsAccount::SavingsAccount() : savingsBalance(0) {} // constructor JWong::SavingsAccount::SavingsAccount(double savingsBalance) : savingsBalance(savingsBalance) {} double JWong::SavingsAccount::getSavingsBalance() { return savingsBalance; } void JWong::SavingsAccount::setSavingsBalance(double savingsBalance) { this->savingsBalance = savingsBalance; } // returns monthly interest and sets savingsBalance to new amount double JWong::SavingsAccount::calculateMonthlyInterest() { double monthlyInterest = savingsBalance * SavingsAccount::annualInterestRate / 12; setSavingsBalance(savingsBalance + monthlyInterest); return monthlyInterest; } void JWong::SavingsAccount::modifyInterestRate(double newInterestRate) { SavingsAccount::annualInterestRate = newInterestRate; } double JWong::SavingsAccount::getAnnualInterestRest() { return SavingsAccount::annualInterestRate; }

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  • WPF ListBoxItem double-click?

    - by David Veeneman
    The WPF ListBox doesn't have a DoubleClick event, at least not as far as I can tell. Is there a workaround for this issue that would let me double-click on an item to have an event handler do something with it? Thanks for your help.

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  • WPF: DataGrid Cell Double-click

    - by Jonathan Allen
    Is there a better way than this to determine the row a user double-clicked on in a data-grid? Private Sub ResultsGrid_MouseDoubleClick(ByVal sender As System.Object, ByVal e As System.Windows.Input.MouseButtonEventArgs) Dim node As DependencyObject = CType(e.OriginalSource, DependencyObject) Do Until TypeOf node Is Microsoft.Windows.Controls.DataGridRow OrElse node Is Nothing node = VisualTreeHelper.GetParent(node) Loop If node IsNot Nothing Then Dim data = CType((CType(node, Microsoft.Windows.Controls.DataGridRow)).DataContext, Customer) 'do something End If End Sub

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  • MvvmLight EventToCommand and WPFToolkit DataGrid double-click

    - by Tom
    Trying to figure out how to use EventToCommand to set a datagrid double click handler for rows. The command lives in the viewmodel for each row. Just that much out of my experience, since I haven't used interactions yet. Thanks. I would have used mvvmlight tag, but I don't have high enough rep yet to make new tags.

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  • Encode double quotes inside XML element using LINQ to XML

    - by davekaro
    I'm parsing a string of XML into an XDocument that looks like this (using XDocument.Parse) <Root> <Item>Here is &quot;Some text&quot;</Item> </Root> Then I manipulate the XML a bit, and I want to send it back out as a string, just like it came in <Root> <Item>Here is &quot;Some text&quot;</Item> <NewItem>Another item</NewItem> </Root> However, what I am getting is <Root> <Item>Here is \"Some text\"</Item> <NewItem>Another item</NewItem> </Root> Notice how the double quotes are now escaped instead of encoded? This happens whether I use ToString(SaveOptions.DisableFormatting); or var stringWriter = new System.IO.StringWriter(); xDoc.Save(stringWriter, SaveOptions.DisableFormatting); var newXml = stringWriter.GetStringBuilder().ToString(); How can I have the double quotes come out as &quot; and not \"? UPDATE: Maybe this can explain it better: var origXml = "<Root><Item>Here is \"Some text&quot;</Item></Root>"; Console.WriteLine(origXml); var xmlDoc = System.Xml.Linq.XDocument.Parse(origXml); var modifiedXml = xmlDoc.ToString(System.Xml.Linq.SaveOptions.DisableFormatting); Console.WriteLine(modifiedXml); the output I get from this is: <Root><Item>Here is "Some text&quot;</Item></Root> <Root><Item>Here is "Some text"</Item></Root> I want the output to be: <Root><Item>Here is "Some text&quot;</Item></Root> <Root><Item>Here is "Some text&quot;</Item></Root>

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  • Auto-Insert double quotes for HTML attributes broken

    - by ScottS
    In VS2008, it used to be that whenever I was typing an html attribute in an .aspx page when I hit '=' a pair of double quotes was automatically inserted and the cursor placed inside them. I guess I've changed a setting, but I don't know what to change to get that functionality back. I am using Resharper if it makes a difference.

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  • Detecting double tap in UIScrollView

    - by william-hu
    Hi, i searched much, the main way is subclass, override -(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { } but i use NSL(@"") in this method to display the times ,but can't work ,who can give me a way to detect double click in detail.thank you so much!

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  • csv file enclosed with double quotes not stripping quotes

    - by sjw
    I am generating a csv download from my web server and to be safe, I have enclosed each field with double quotes. i.e. "Field1","Field2","Field3","Field4" "row1_field1","row1_field2","row1_field3","row1_field4" "row2_field1","row2_field2","row2_field3","row2_field4" The problem is that when the file is opened in Excel, it does not strip all quotes... Therefore, some fields are appearing as: row1_field1 whereas others are appearing as "row1_field2" What am I not doing to ensure that excel strips all surrounding quotes?

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  • Compare double till precision 2

    - by Ram
    Hi, I want to compare two double values till the second digit from decimal point. I am using following statement but I think it is not working properly. dbl1.ToString("g2", CultureInfo.InvariantCulture).Equals( dbl2.ToString("g2", CultureInfo.InvariantCulture)) Am I missing anything here?

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  • Enclose values in double quotes in VB.net

    - by acadia
    Hello, I have this string in vb.net. I would appreciate if you can let me know how I can enclose the values in double quotes dim str as string="" str.Append("EmpID=" & empNo & " DeptID=" & deptID & "") I want the value of string to be EmiID="10" DeptID="20" Thanks

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  • Eclipse plugin to find the error on Double Click the file

    - by sathish
    Hi, I need the help in console view of eclipse. When i build my project all my errors and warnings are displayed in console window and if i need to find the place where it showing those errors i need have to go into that file and find those information. I feel its much iritating to find when errors are huge. So is there any plugin available that take us to that location of errors on double click. Thanks in Advance

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  • Qt double click check left button mouse

    - by Alex Ivasyuv
    I need to run slot only on doubleClick with left button mouse, instead of both. connect(this -> myComponent, SIGNAL (doubleClicked (const QModelIndex & )), this, SLOT (performSomeAction(const QModelIndex & ))); With this event, double click works in both cases, but needed only with left button click. How I can do it? this - myComponent = QTableView

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  • LaTeX Double Spacing

    - by reprogrammer
    I am using the acm LaTeX template and I have trouble making my paper double spaced. My LaTeX document looks like the following: \documentclass{acm_proc_article-sp} \usepackage{setspace} \doublespacing \begin{document} ... \end{document} When I compile the above document using pdflatex, I get the following error message on the line that I use the command \doublespacing: Missing number, treated as zero \doublespacing

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  • x86-64 long double precision

    - by aaa
    hello. What is the actual precision of long double on Intel 64-bit platforms? is it 80 bits padded to 128 or actual 128 bit? if former, besides going gmp, is there another option to achieve true 128 precision?

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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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