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  • How to get an object from a list based upon IEqualityComparer<T>

    - by Greg
    The Compare method in Linq lets you find by an IEqualityComparer, but I can't find a counterpart method that allows you retrieve an item by the same comparer. Is this really the best way to do it? MyItem myFinderItem = new MyItem(keyField1, keyField2); if (myList.Contains(myFinderItem, new MyEqualityComparer())) { MyItem myRealItem = myList.Single(item => new MyEqualityComparer().Equals(item , myFinderItem)); } (I'm sharing the usage of the IEqualityComaprer with a call to the Except Linq method and I'd like to maintain a single source for equality comparisons)

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  • How difficult is Haskell multi-threading?

    - by mvid
    I have heard that in Haskell, creating a multi-threaded application is as easy as taking a standard Haskell application and compiling it with the -threaded flag. Other cases, however, have described the use of a par command within the actual source code. What is the state of Haskell multi-threading? How easy is it to introduce into programs? Is there a good multi-threading tutorial that goes over these different commands and their uses?

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  • File permissions changed between OS X and Windows

    - by Horace Ho
    I zipped a rails project from OS X and sent it to a colleague who works on Windows. He updated the source, zipped the whole project folder and sent the zip file back to me. After unzipping the project, I found that the file permissions information is kind of lost. For example, the script/server is changed from -rwxr-xr-x to -rw-r--r--. Is there a way to preserver the file permission flags, when transferring files between mac and windows? Thanks

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  • Is there something like the OllyDbg / SoftICE disassembler + debugger for java?

    - by Ran Biron
    Is there a utility similar to OllyDbg / SoftICE for java? I.e. execute class (from jar / with class path) and, without source code, show the disassembly of the intermediate code with ability to step through / step over / search for references / edit specific intermediate code in memory / apply edit to file... If not, is it even possible to write something like this (assuming we're willing to live without hotspot for the debug duration)?

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  • Asp.net login problem.

    - by Catarrunas
    Hello, im building a asp.net web site with 2.0 framework. I've been "fighting" with web.config, i've changed it quiet some times. So to start from scracht this is what i have: <?xml version="1.0" encoding="utf-16"?> <configuration> <connectionStrings> <remove name="LocalSqlServer"/> <add name="ABC" connectionString="Database=jsilvaqqc.mdf; Data Source=213.175.208.3;Initial Catalog=jsilvaqqc;User ID=jsilva;Password=joao123#;" providerName="System.Data.SqlClient"/> <add name="LocalSqlServer" connectionString="Database=jsilvaqqc.mdf; Data Source=213.175.208.3;Initial Catalog=jsilvaqqc;User ID=jsilva;Password=joao123#;" providerName="System.Data.SqlClient"/> </connectionStrings> <location path="Members"> <system.web> <authorization> <allow users="*"/> <deny users="?"/> </authorization> </system.web> </location> <system.web> <compilation debug="true"/> </system.web></configuration> It works fine im my machine. I've created the users for the login and the role to access the "Members" folder. But in my host company, it doesnt work. I have the aspnet database from my computer in that databese "jsilvaqqc.mdf". When i try to log on pops up box requiring autentication. But i've alreadu given that in the log in form. Do i need aspnet "authentication" tag? Why dont i need it in my machine if i access the same database? Thanks for you help.

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  • How do I get tooltips to work in MFC for menus?

    - by frungash
    I have a dlg box as the main window. After a few searches on the we I tried downloading and running the sample the source here: http://msdn.microsoft.com/en-us/magazine/cc164067.aspx I get a compile error: error C2440: 'static_cast' : cannot convert from 'UINT (__thiscall CStaticLink::* )(CPoint)' to 'LRESULT (__thiscall CWnd::* )(CPoint)' 1 Cast from base to derived requires dynamic_cast or static_cast (VS 2008) The tooltips functionality seems to be a bit of a challenge. Any suggestions on how to get this working are much appreciated.

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  • Binding problem in C# wpf

    - by Cinaird
    I have a problem whit binding in wpf i have a textbox where i can do some input, then i try to bind the textinput to a custom usercontrol. This work for the usercontrol within RowDetailsTemplate but not in the CellTemplate. For each object in the CellTemplate i get this error output: System.Windows.Data Error: 4 : Cannot find source for binding with reference 'ElementName=ScaleTextBox'. BindingExpression:Path=Text; DataItem=null; target element is 'Chart' (Name=''); target property is 'MaxValue' (type 'Int32') My code looks like this: XAML <ToolBarTray ToolBarTray.IsLocked="True" DockPanel.Dock="Top" Height="25"> <ToolBar Name="ButtonBar" > <TextBox Height="23" Name="ScaleTextBox" Width="120" Text="400"/> </ToolBar> </ToolBarTray> <DataGrid ItemsSource="{Binding Path=Items}" AutoGenerateColumns="False" IsReadOnly="True" RowHeight="25" RowDetailsVisibilityMode="VisibleWhenSelected"> <DataGrid.RowDetailsTemplate> <DataTemplate> <StackPanel Orientation="Vertical" > <my:UserControl ItemsSource="{Binding Path=Samples}" MaxValue="{Binding ElementName=ScaleTextBox, Path=Text}"/>--> </StackPanel> </DataTemplate> </DataGrid.RowDetailsTemplate> <DataGrid.Columns> <DataGridTemplateColumn MinWidth="150" Header="Chart" > <DataGridTemplateColumn.CellTemplate> <DataTemplate> <my:UserControl ItemsSource="{Binding Path=Samples}" MaxValue="{Binding ElementName=ScaleTextBox, Path=Text}"/><!-- this is the problem --> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> </DataGrid.Columns> </DataGrid> C# public static readonly DependencyProperty MaxValueProperty = DependencyProperty.Register("MaxValue", typeof(int), typeof(PingChart), new FrameworkPropertyMetadata(MaxValuePropertyChanged)); private static void MaxValuePropertyChanged(DependencyObject source, DependencyPropertyChangedEventArgs e) { Console.WriteLine(e.NewValue); } What do i do wrong?

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  • How do I get javascript results using selenium?

    - by Seth
    I have the following code: from selenium import selenium selenium = selenium("localhost", 4444, "*chrome", "http://some_site.com/") selenium.start() sel = selenium sel.open("/") sel.type("ctl00_ContentPlaceHolder1_SuburbTownTextBox", "Adelaide,SA,5000") sel.click("ctl00_ContentPlaceHolder1_SearchImageButton") #text = sel.get_body_text() text = sel.get_html_source() print(text) The click executes a javascript file which then produces results on the same page. Obviously print(text) will only print the orignal html source. How do I get to the results of the javascript?

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  • javascript DOM how to know what node is?

    - by Fernando SBS
    here is the source code: <table id="movements" cellpadding="1" cellspacing="1"><thead><tr><th colspan="3">Movimentações de tropas:</th></tr></thead><tbody><tr> <td class="typ"><a href="build.php?gid=16"><img src="img/x.gif" class="att1" alt="Tropas atacantes chegando" title="Tropas atacantes chegando" /></a><span class="a1">&raquo;</span></td> <td><div class="mov"><span class="a1">1&nbsp;Ataque</span></div><div class="dur_r">em&nbsp;<span id="timer1">13:21:06</span>&nbsp;hrs.</div></div></td></tr><tr> <td class="typ"><a href="build.php?gid=16"><img src="img/x.gif" class="def1" alt="Tropas de reforço chegando" title="Tropas de reforço chegando" /></a><span class="d1">&raquo;</span></td> <td><div class="mov"><span class="d1">1&nbsp;Reforço</span></div><div class="dur_r">em&nbsp;<span id="timer2">0:14:55</span>&nbsp;hrs.</div></div></td></tr><tr> <td class="typ"><a href="build.php?gid=16"><img src="img/x.gif" class="att2" alt="Próprias tropas atacando" title="Próprias tropas atacando" /></a><span class="a2">&laquo;</span></td> <td><div class="mov"><span class="a2">1&nbsp;Ataque</span></div><div class="dur_r">em&nbsp;<span id="timer3">0:08:50</span>&nbsp;hrs.</div></div></td></tr><tr> <td class="typ"><a href="build.php?gid=16"><img src="img/x.gif" class="def2" alt="Próprias tropas reforçando" title="Próprias tropas reforçando" /></a><span class="d2">&laquo;</span></td> <td><div class="mov"><span class="d2">1&nbsp;Reforço</span></div><div class="dur_r">em&nbsp;<span id="timer4">2:50:45</span>&nbsp;hrs.</div></div></td></tr></tbody></table> and this is the View Source Chart of the document html (for easy DOM working): I would like to get to the 0:14:55 value coming from <span class="d1">, how to do it? EDIT Marcel Korpel: The value is always in the span in a div coming directly after a div containing a span with class d1, like: <div class="mov"><span class="d1">1&nbsp;Reforço</span></div><div class="dur_r">em&nbsp;<span id="timer2">0:14:55</span>&nbsp;hrs.</div>

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  • Check if the path input is URL or Local File

    - by Ahmed
    Hi All, I'm working in xmldataprovider and we have configuration value "source" this value may be local file or url like c:\data\test.xml --absolute data\test.xml --relative or url http:\mysite\test.xml how I can determine all this cases in code I'm working c#

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  • Visual Studio 8, PVCS or Rational ClearCase

    - by Stephen Swensen
    We are currently using Visual Studio 8 with Visual Source Safe. Due to customer requirement, we must migrate to either PVCS or Rational ClearCase, Team System is not an option. Please recommend one of these two options, giving pros/cons from experience with each. How well does each integrate with Visual Studio 8?

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  • How to assert certain method is called with Ruby minitest framework?

    - by steven.yang
    I want to test whether a function invokes other functions properly with minitest Ruby, but I cannot find a proper assert to test from the doc. The source code class SomeClass def invoke_function(name) name == "right" ? right () : wrong () end def right #... end def wrong #... end end The test code: describe SomeClass do it "should invoke right function" do # assert right() is called end it "should invoke other function" do # assert wrong() is called end end

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  • What grammar based parser-generator tools exist for ruby?

    - by cartoonfox
    What open source (preferably gem-based) parser-generator options do I have in Ruby? I've used (flex&bison)|(lex&yacc) from C in the past, and I'm comfortable with BNF-style specifications. I've heard of treetop, but it looks a bit alien and verbose compared to yacc... Purpose: I want to convert my text markup language to a BNF and generate the parsing code. I think it's a better strategy than my first-order solution: http://github.com/dafydd/semantictext/blob/master/lib/semantictext/rich_text_parser.rb

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  • Adding Three20 in our project ?

    - by goeff27
    Hi How to find /Three20/src folder in downloaded source code ? or i have to create my own folder of that name ? and Clone the Three20 git repository: git clone git://github.com/facebook/three20.git is have to run on terminal or what ? Concept not clear ? any any body help me regarding all the steps clearly ? thanks

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  • Java - strange problem storing text to a String[] and then storing the array to a Vector. Help plea

    - by hatboysam
    OK so for background I've only been using Java for a little more than a week and I am making a basic GUI "Recipe Book" application just to test out some of the techniques I've learned. Currently I'm working on the "Add New Recipe" page that allows the user to make a new recipe by adding ingredients one at a time. The ingredients have 3 attributes: Name, amount, and unit (like cups, oz, etc) that come from two text fields and a combo box respectively. The 3 values are stores as strings to a String array that represents the ingredient, then the arrays are stored in a vector that holds all of the ingredients for one recipe. When an ingredient is added, the user first types in the 3 necessary values into empty boxes/combo box dropdown and then clicks "Add Ingredient". Here is my code for when the button is clicked: public void actionPerformed(ActionEvent event) { Object source = event.getSource(); if (source == addIngredientButton) { //make sure 3 ingredient fields are not blank if (!ingredientNameField.getText().equals("") && !ingredientAmountField.getText().equals("") && !ingredientUnitDropdown.getSelectedItem().equals("")) { tempIngredientsArray[0] = ingredientNameField.getText(); //set ingredient name to first position in array tempIngredientsArray[1] = ingredientAmountField.getText(); //set ingredient amount to second position in array tempIngredientsArray[2] = (String) ingredientUnitDropdown.getSelectedItem(); //set ingredient unit to third position in array int ingredientsVectorSize = tempRecipe.ingredientsVector.size(); tempRecipe.ingredientsVector.add(this.tempIngredientsArray); //why would it matter if this and previous statement were switched for (int k = 0; k < ingredientsVectorSize + 1; k++ ) { liveIngredientsListArea.append("\n" + tempRecipe.makeIngredientSentence(k)); System.out.println(Arrays.toString(tempIngredientsArray)); //shows that tempIngredientsArray gets messed up each time } } Now here's the really strange problem I've been having. The first time the user adds an ingredient everything works fine. The second time, the String[] for that ingredient seems to be duplicated, and the third time it's triplicated. Aka the first time it runs the System.out.println might return "{Sugar, 3, Cups}" and the second time it will return "{Flour, 2, Oz.} {Flour, 2, Oz.}" etc. What's causing this strange problem? All help greatly appreciated, let me know if you need any clarification.

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  • TACACS lib for java

    - by guaz
    The only open source TACACS lib I was able to find was Jnetlib http://sourceforge.net/projects/jnetlib But there is not any description about how to use it!! Anyone have used it before?? thanks

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  • Why is System.arraycopy native in Java?

    - by James B
    I was surprised to see in the Java source that System.arraycopy is a native method. Of course the reason is because it's faster. But what native tricks is the code able to employ that make it faster? Why not just loop over the original array and copy each pointer to the new array - surely this isn't that slow and cumbersome? Thanks, -James

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  • Iphone: Change Audio Speed

    - by mauro
    Hi, I purchased Amazing Slow Downer for iphone. It permits to change audio speed without changing pitch. Could someone please help me in finding the source code for obtaining such a function. Thank you Mauro

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