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  • How do I splice a python string programmatically?

    - by Robin Welch
    Very simple question, hopefully. So, in Python you can split up strings using indices as follows: >>> a="abcdefg" >>> print a[2:4] cd but how do you do this if the indices are based on variables? E.g. >>> j=2 >>> h=4 >>> print a[j,h] Traceback (most recent call last): File "<stdin>", line 1, in ? TypeError: string indices must be integers

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  • ASP.Net Reportviewer in folder not working

    - by Bruce
    We can run the ReportViewer in a ASP.Net Web App project that is off the root OK so localhost/test/report.aspx works. It's running as a Client Report. But if we move the application up another level the report stops working so localhost/testfolder/test/test.aspx. When the report fails it has no data to display and none of the images are loading. Info: We are bind the report in code and sort out the Report.LocalReport.ReportPath to the correct path. Can't help thinking there is a setting wrong, but stumped at the moment!

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  • Why does this binding doesn't work through XAML but does by code ?

    - by user361899
    I am trying to bind to a static property on a static class, this property contains settings that are deserialized from a file. It never works with the following XAML : <Window.Resources> <ObjectDataProvider x:Key="wrapper" ObjectType="{x:Type Application:Wrapper}"/> </Window.Resources> <ScrollViewer x:Name="scrollViewer" ScrollViewer.VerticalScrollBarVisibility="Auto"DataContext="{Binding Source={StaticResource wrapper}, UpdateSourceTrigger=PropertyChanged}"> <ComboBox x:Name="comboboxThemes" SelectedIndex="0" SelectionChanged="ComboBoxThemesSelectionChanged" Grid.Column="1" Grid.Row="8" Margin="4,3" ItemsSource="{Binding Settings.Themes, Mode=OneWay}" SelectedValue="{Binding Settings.LastTheme, Mode=TwoWay}" /> It does work by code however : comboboxThemes.ItemsSource = Settings.Themes; Any idea ? Thank you :-)

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  • Are raw C++ pointers first class objects?

    - by Shailesh Kumar
    According to Wikipedia: An object is first-class when it: can be stored in variables and data structures can be passed as a parameter to a subroutine can be returned as the result of a subroutine can be constructed at runtime has intrinsic identity (independent of any given name) Somebody had once told me that raw pointers are not first class objects while smart pointers like std::auto_ptr are. But to me, a raw pointer (to an object or to a function) in C++ does seem to me to satisfy the conditions stated above to qualify as a first class object. Am I missing something?

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  • Sound plays multiple times at once

    - by Jr. Mathews
    I'm having trouble with sound in Flash. I may have went about coding the wrong way, because most of my codes are on frames. So, I have these two variables var outsideDay:Sound = new daysong(); var outsideNight:Sound = new nightsong(); And I want to play these songs on a specific frame. However, the sounds play sporadically, like 50 times at once. I think it's because I have other codes that link to the frames with a Enter_Frame function. How can I get the sounds to loop and not play multiple times at once?

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  • parsing primitive types using java.util.Scanner

    - by Rich Fluckiger
    I'm new to java so forgive the noob question. I have created a swing application that basically has three input strings in JTextFields: loanAmount, interestRate and loanYears and a single submit button with the EventAction. I'm trying to use the java.util.Scanner to parse the input to primitive types that I can use in calculations. I'm getting an error in NetBeans indicating that my variables are not recognized? should I not be calling System.in? private void submitButtonActionPerformed(java.awt.event.ActionEvent evt) { Scanner keyInput = new Scanner(System.in); while (true) try{ double amount = keyInput.nextDouble(loanAmount.getText()); double interest = keyInput.nextDouble(interestRate.getText()); int years = keyInput.nextInt(loanYears.getText()); } catch (NumberFormatException nfe){ } }

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  • PHP Convert variable names to lowercase?

    - by VeeBee
    I have an api listener script which takes in get parameters. But I seem to be having issues when users tend to pass mixed case variable names on the parameters. For example: http://mylistenerurl.com?paramName1=Hello&paramname2=World I need my listener to be flixible in such a way that the variable names will be interpreted case-insensitively or rather still all in lower case like after I process the query string on some function, they are all returned as lower-cased variables: extract(someFunction($_GET)); process($paramname1, $paramname2); Can anybody shed some light on this? *much appreciated. thanks!

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  • Anonymous code blocks in Groovy

    - by piepera
    Is there a way to use anonymous code blocks in Groovy? For example, I'm trying to translate the following Java code into Groovy: { int i = 0; System.out.println(i); } int i = 10; System.out.println(i); The closest translation I can come up with is the following: boolean groovyIsLame = true; if (groovyIsLame) { int i = 0; System.out.println(i); } int i = 10; System.out.println(i); I know anonymous code blocks are often kind of an antipattern. But having variables with names like "inputStream0" and "inputStream1" is an antipattern too, so for this code I'm working on, anonymous code blocks would be helpful.

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  • WPF: Convert memory stream to BitmapImage?

    - by David Veeneman
    I have an image that was originally a PNG that I have converted to a byte[] and saved in a database. Originally, I simply read the PNG into a memory stream and converted the stream into a byte[]. Now I want to read the byte[] back and convert it to a BitmapImage, so that I can bind a WPF Image control to it. I am seeing a lot of contradictory and confusing code online to accomplish the task of converting a byte[] to a BitmapImage. I am not sure whether I need to add any code due to the fact that the image was originally a PNG. Can anyone provide the code to convert the stream to a BitmapImage? Thanks for your help.

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  • Is it possible to programmatically control c# health monitoring without using the web.config file?

    - by Adam
    I have developed my own custom provider for the health monitoring; however, I use parameters in the constructor and this is not allowed when using the health monitoring from the web.config file. Does anyone know if I can turn on/off the monitoring and have it watch properly through code (possibly in my global.asax file on application startup). Or, is it possible for me to create my own watcher that will do the same thing as the health monitor. Or, finally - can I just pass variables from the web.config setup (i'm not familiar with the public token part of the provider type declaration). Thanks in advance

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  • design patterns for hierarchical structures

    - by JLBarros
    Anyone knows some design patterns for hierarchical structures? For example, to manage inventory categories, accounting chart of accounts, divisions of human resources, etc.. Thank you very much in advance EDIT: Thanks for your interest. I am looking for a better way of dealing with hierarchical items to which they should apply operations depending on the level of hierarchy. I have been studying the patterns by Martin Fowler, for example Accounting, but I wonder if there are other more generic. The problem is that operations apply to the items must be possible to change even at run time and may depend on other external variables. I thought of a kind of strategy pattern but would like to combine it with the fact that it is a hierarchical scheme. I would appreciate any reference to hierarchical patterns and you'll take care of them in depth.

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  • Access parent class from custom attribute

    - by madcapnmckay
    Hi, Is it possible to access a parent class from within an attribute. For example I would like to create a DropDownListAttribute which can be applied to a property of a viewmodel class in MVC and then create a drop down list from an editor template. I am following a similar line as Kazi Manzur Rashid here. He adds the collection of categories into viewdata and retrieves them using the key supplied to the attribute. I would like to do something like the below, public ExampleDropDownViewModel { public IEnumerable<SelectListItem> Categories {get;set;} [DropDownList("Categories")] public int CategoryID { get;set; } } The attribute takes the name of the property containing the collection to bind to. I can't figure out how to access a property on the parent class of the attribute. Does anyone know how to do this? Thanks

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  • Generate accessors in Visual C++ 2008

    - by gramm
    Hi, I'm trying to generate the accessors and mutators for my variables automatically, but just can't find a way. I tried the right-click/refactor... solution, but the refactor item doesn't appear. I'm not in the mood right now to learn how to write a macro to do this, and I don't have the money to buy a commercial solution (internship student). Any help is welcome, I don't feel like writing all my get/set by hand. note : it's C++ so the {get;set} syntax doesn't work (or does it ?).

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  • FastCGI C++ program and missing SCRIPT_NAME

    - by Simone Margaritelli
    Hi guys, i'm studying the fastcgi developement kit because i'm writing a new scripting language and i'd like to write a fastcgi version of the interpreter to run scripts as webpages. I'm using this example from the sdk, located at /srv/http/bin/echocpp So, in my httpd.conf file, i have the following lines : FastCgiServer /srv/http/bin/echocpp -idle-timeout 120 -processes 4 ScriptAlias / /srv/http/bin/echocpp/ ... ... AddHandler fastcgi-script hy Where 'hy' is the extensions of my scripts. Then, when i try browse, for instance http://localhost/~evilsocket/prime.hy I see all the environment variables as expected from the echo-cpp.cpp programm, except for the SCRIPT_NAME that is empty. Is there something i'm missing out of this? How am i supposed to obtain the full path of the script to run it inside my fastcgi version of the interpreter? Thanks

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  • POSIX Threads and signal masks

    - by Max
    Is there a way to change the signal mask of a thread from another thread? I am supposed to write a multithreaded C application that doesn't use mutex, semaphores and condition variables, only signals. So it would look like something like this: The main Thread sends SIGUSR1 to its process and and one of the 2 threads (not including the main thread), will respond to the signal and block SIGUSR1 from the sigmask and sleep. Then the main thread sends SIGUSR1 again, the other thread will respond, block SIGUSR1 from its sigmask, unblock SIGUSR1 from the other threads sigmask, so it will respond to SIGUSR1 again. So essentially whenever the main thread sends SIGUSR1 the two other threads swap between each other. Can somebody help?

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  • WPF Binding not updating when binded object is updated

    - by Chris Klepeis
    I'm trying to bind to a custom control like so: <my:GanttChartTaskListView Name="ganttChartTaskListView1" ItemsSource="{Binding Source={x:Static local:TaskCollection.taskList}}" /> In my WPF Window constructor I add add an item to my taskList, when it loads I can see that item in my custom control, however, when I subsequently add items it does not update. I tried setting Mode=TwoWay, however, then it says the "Path" is required and I'm not familiar with binding like that (this is new to me). Here is my TaskCollection class: namespace ProjectManager { public static class TaskCollection { private static List<TaskItem> _taskList = new List<TaskItem>(); public static List<TaskItem> taskList { get {return _taskList; } set { _taskList = value; } } } } Any ideas? Is there a better / easier way to do this?

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  • How to select a MenuItem programatically

    - by Shaung
    I am trying to add a global shortcut to a gtk.MenuItem which has a sub menu. Here is my code: import pygtk, gtk import keybinder dlg = gtk.Dialog('menu test') dlg.set_size_request(200, 40) menubar = gtk.MenuBar() menubar.show() menuitem = gtk.MenuItem('foo') menuitem.show() menubar.append(menuitem) mitem = gtk.MenuItem('bar') mitem.show() menu = gtk.Menu() menu.add(mitem) menu.show() menuitem.set_submenu(menu) def show_menu_cb(): menubar.select_item(menuitem) keybinder.bind('<Super>i', show_menu_cb) dlg.vbox.pack_start(menubar) dlg.show() dlg.run() When I press the key menu pops up, I can then select items in the sub menu or press Esc to make it disappear. But after that the menuitem keeps selected and other windows never get input focus again. I have to click on the menuitem twice to get everything back normal.

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  • jQuery DataLink - Does DataLink solve my use case?

    - by AnApprentice
    Hello, I recently heard of the jQuery datalink plugin and wondered if I should be using if for the following: I have a an inbox in my app that consists of the following: Inbox (index) - List of Items (list of mails) Inbox (show) Item Viewer (1 mail) Inbox Unread Counter The challenge I'm having now is a user can mark a mail as read/unread in either view which makes keeping the counter accurate challenging. Can datalink help with this? If so how? Also, I read that datalink requires forms is that true? Or can I bind the links to anything like 0 and anytime a mailitem changes from read to unread it would automatically update? Thanks

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  • Incompatible Types in Initialization

    - by jack
    I have the following code in a subroutine that produces an incompatible types in initialization error on the varVal library in the subroutine evaluateExpression: NSDictionary *varVal; for (int i=0; i<varCount; i++) { [varVal setObject:[(i+1)*2 stringValue] forKey:[i stringValue]]; } double result =[[self brain] evaluateExpression:[[self brain] expression] usingVariableValues:varVal]; My subroutine declaration in the brain.h file is: +(double)evaluateExpression:(id)anExpression usingVariableValues:(NSDictionary *)variables; I'd appreciate any help.

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  • static, define, and const in C

    - by yCalleecharan
    Hi, I've read that static variables are used inside function when one doesn't want the variable value to change/initialize each time the function is called. But what about defining a variable static in the main program before "main" e.g. #include <stdio.h> static double m = 30000; int main(void) { value = m * 2 + 3; } Here the variable m has a constant value that won't get modified later in the main program. In the same line of thought what difference does it make to have these instead of using the static definition: const double m = 30000; or #define m 30000 //m or M and then making sure here to use double operations in the main code so as to convert m to the right data type. Thanks a lot...

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  • Console App Mouse-Click X Y Coordinate Detection/Comparison

    - by Bloodyaugust
    I have a game that I am working on in a C# console application, purely as practice before going on to better methods. As opposed to using something such as a Windows Forms App, which has button functionality built in, I am endeavoring to grab the cursor position (which I know how to do) and compare it to a number of area's inside a console application as defined by perhaps pixel location, but I also do not know if there is some sort of built in unit of space other than pixels (this last bit is the part I am unable to figure). P.S. I know this is in general terms, with no code already provided, but I do not feel that it is needed as all I am asking for is a brief explanation of how to grab X Y coordinates inside a console application, and stick them in int variables. Many Thanks in advance! :D

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  • how to use listctrl in notebook wxPython

    - by ???
    I have one question.. wxPython listctrl in notebook I created 2 tab use notebook. I added button in first tab and added Listctrl in second tab. If i click the button, Add value in Listctrl to second tab. how to solve this problem? import wx class PageOne(wx.Panel): def __init__(self, parent): wx.Panel.__init__(self, parent) self.query_find_btn = wx.Button(self, 4, "BTN", (40,40)) self.Bind(wx.EVT_BUTTON, self.AddList, id = 4) def AddList(self, evt): self.list1.InsertStringItem(0,'Hello') class PageTwo(wx.Panel): def __init__(self, parent): wx.Panel.__init__(self, parent) self.list1 = wx.ListCtrl(self,-1,wx.Point(0,0),wx.Size(400,400),style=wx.LC_REPORT | wx.SUNKEN_BORDER) self.list1.InsertColumn(0,'values') class MyFrame(wx.Frame): def __init__(self, parent, id, title): wx.Frame.__init__(self,parent,id,title,size=(400,400),pos=wx.Point(100,100), style=wx.SYSTEM_MENU |wx.CAPTION ) p = wx.Panel(self) nb = wx.Notebook(p) MainFrame = PageOne(nb) SecondFrame = PageTwo(nb) nb.AddPage(MainFrame, "One") nb.AddPage(SecondFrame, "Two") sizer = wx.BoxSizer() sizer.Add(nb, 1, wx.EXPAND) p.SetSizer(sizer) class MyApp(wx.App): def OnInit(self): self.frame=MyFrame(None,-1,'Unknown.py') self.frame.Centre() self.frame.Show() return True if __name__ == '__main__': app = MyApp(False) app.MainLoop()

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  • ArgumentException was unhandled Application.run

    - by user369758
    Hi I've been through many sites and can't seem to find an answer. I modified a view that was connected to a Datagridview connected through a tableadapter on a C# Winforms app and in order to "reconnect" I had to delete the tableadapter and reconnect it. This was to get rid of an error regarding Unique contstraints. So I fixed that and now the application launches but when I click on the tab that that grid is on I get: System.ArgumentException was unhandled Message="Cannot bind to the property or column Id on the DataSource.\r\nParameter name: dataMember" Source="System.Windows.Forms" ParamName="dataMember" StackTrace: at System.Windows.Forms.BindToObject.CheckBinding() at System.Windows.Forms.BindToObject.SetBindingManagerBase(BindingManagerBase lManager)......... I can't seem to find an answer to this problem. Can someone help me? Thanks

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  • rowupdating not giving new values.

    - by pankaj
    Hi, I am working on a application where i am using rowupdating event of the gridview. I am using templatefield in my columns so i am not able to get the new values from the textboxws that i am having in the gridview. How can i get the new values from the textboxes. Following is my code in rowupdating: protected void gviewTemplate_RowUpdating(object sender, GridViewUpdateEventArgs e) { gviewTemplate.EditIndex = -1; string rowNum = ViewState["ID"].ToString(); Label lbl2 = (Label)gviewTemplate.Rows[e.RowIndex].FindControl("lblTemplateName"); Label lbl1 = (Label)gviewTemplate.Rows[e.RowIndex].FindControl("lblUploaded"); TextBox txtTempName = (TextBox)gviewTemplate.Rows[e.RowIndex].FindControl("txtTemplateName"); TextBox txtHeading = (TextBox)gviewTemplate.Rows[e.RowIndex].FindControl("txtHeading"); TextBox txtCoupon = (TextBox)gviewTemplate.Rows[e.RowIndex].FindControl("txtCouponText"); TextBox txtBrand = (TextBox)gviewTemplate.Rows[e.RowIndex].FindControl("txtBrandName"); TextBox txtSearchText = (TextBox)gviewTemplate.Rows[e.RowIndex].FindControl("txtSearch"); TextBox txtDiscount = (TextBox)gviewTemplate.Rows[e.RowIndex].FindControl("txtDiscount"); TextBox txtStartDt = (TextBox)gviewTemplate.Rows[e.RowIndex].FindControl("txtStartDt"); } i want to get the new values form these textboxes but it is always giving me old values. and yes, e.Newvalues is not giving me anything. It is always empty. This is small extract from my gridview design: <asp:GridView runat="server" AutoGenerateColumns="False" ID="gviewTemplate" onrowdatabound="gviewTemplate_RowDataBound" DataKeyNames="F1" onrowcommand="gviewTemplate_RowCommand" onrowediting="gviewTemplate_RowEditing" onrowcancelingedit="gviewTemplate_RowCancelingEdit" onrowupdating="gviewTemplate_RowUpdating" onrowdeleting="gviewTemplate_RowDeleting" onrowupdated="gviewTemplate_RowUpdated"> <Columns> <asp:TemplateField HeaderText="Uploaded Image"> <EditItemTemplate> <asp:LinkButton Text="Reload" runat="server" OnClick="lbtnReloadImage_Click" CommandName="reload" ID="lbtnReloadImage"></asp:LinkButton> </EditItemTemplate> <ItemTemplate> <table id="Table2" runat="server" width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td> <asp:Label Runat="server" Text='<%# Eval("Uploaded") %>' ID="lblUploaded"></asp:Label> </td> </tr> </table> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Template Name"> <ItemStyle VerticalAlign="Top" HorizontalAlign="Center" /> <EditItemTemplate> <asp:TextBox ID="txtTemplateName" Width="60" Runat="server" Text='<%# Eval("F1") %>'></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator1" Runat="server" ErrorMessage="You must provide a Product Name." ControlToValidate="txtTemplateName">*</asp:RequiredFieldValidator> </EditItemTemplate> <ItemTemplate> <table id="Table3" runat="server" width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td> <asp:Label ID="lblTemplateName" runat="server" Text='<%# Eval("F1") %>'></asp:Label> </td> </tr> </table> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Heading"> <ItemStyle VerticalAlign="Top" HorizontalAlign="Center" /> <EditItemTemplate> <asp:TextBox ID="txtHeading" Runat="server" Width="60" Text='<%# Eval("F2") %>'></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator2" Runat="server" ErrorMessage="You must provide a Product Name." ControlToValidate="txtHeading">*</asp:RequiredFieldValidator> </EditItemTemplate> <ItemTemplate> <table id="Table4" runat="server" width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td> <asp:Label ID="lblHeading" runat="server" Text='<%# Eval("F2") %>'></asp:Label> </td> </tr> </table> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Coupon Text"> <ItemStyle VerticalAlign="Top" HorizontalAlign="Center" /> <EditItemTemplate> <asp:TextBox ID="txtCouponText" Runat="server" Width="80" Text='<%# Bind("F3") %>'></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator3" Runat="server" ErrorMessage="You must provide a Product Name." ControlToValidate="txtCouponText">*</asp:RequiredFieldValidator> </EditItemTemplate> <ItemTemplate> <table id="Table5" runat="server" width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td> <asp:Label Runat="server" Text='<%# Bind("F3") %>' ID="lblCouponText"></asp:Label> </td> </tr> </table> </ItemTemplate> </asp:TemplateField> Can anyone please tell me how to get the new values from these textboxes?

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  • mac, java 1.5: javax.mail not recognized as a jar file

    - by Helpme
    hello fellow java developers, Having a little issue with creating a java application on a macintosh computer (snow leopard). I've set up my application in eclipse, added all of the appropriate jar files, but for some reason the code is not recognizing some of my variables as valid types. I've imported the libraries via import javax.mail.*; import javax.mail.internet.*; These libraries are not recognized by the application. BUT I've put them on the build path! Any advice on how to fix this?

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