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  • A simple Python extension in C

    - by celil
    I am trying to create a simple python extension module. I compiled the following code into a transit.so dynamic module #include <python2.6/Python.h> static PyObject* _print(PyObject* self, PyObject* args) { return Py_BuildValue("i", 10); } static PyMethodDef TransitMethods[] = { {"print", _print, METH_VARARGS, ""}, {NULL, NULL, 0, NULL} }; PyMODINIT_FUNC inittransit(void) { Py_InitModule("transit", TransitMethods); } However, trying to call this from python import transit transit.print() I obtain an error message File "test.py", line 2 transit.print() ^ SyntaxError: invalid syntax What's wrong with my code?

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  • [WM6] Owner of a component. What exactly is this for?

    - by kornelijepetak
    I am developing an app for Windows Mobile 6 and there is a CameraCaptureDialog class that enables me to call a camera app from my own application. The class has an Owner property that most examples on the internet set to "this". cam.Owner = this; What exactly does this do? I've seen a similar scenario with Windows Forms components/controls by setting the Parent control. In that case I guess it's used only for layout algorithms, but other than that, is there any useful purpose? I don't see how setting an owner of the CameraCaptureDialog can (and actually does not) make any difference (at least not a visible one). Any insight would be appreciated.

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  • Whats the proper way of accessing a database through an assembly?

    - by H4mm3rHead
    Hi, I have a ASP.NET MVC application which is build up as an assembly that queries the database and a asp.net frontend that references this assembly and this assembly abstracts the underlying database. This means that my Assembly contains a app.config file that contains the connectionstring to the database (Linq to Sql data model). How do I go about making this more flexible? Should i make a "initialize()" method somewhere in my assembly which takes the connection string from the asp.net mvc application and then that controls which database to use? or how is this done?

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  • How to get url parameter value of current route in view in ASP .NET MVC

    - by Dima
    For example I am on page http://localhost:1338/category/category1?view=list&min-price=0&max-price=100 And in my view I want to render some form @using(Html.BeginForm("Action", "Controller", new RouteValueDictionary { { /*this is poblem place*/ } }, FormMethod.Get)) { <!--Render some controls--> <input type="submit" value="OK" /> } What I want is to get view parameter value from current page link to use it for constructing form get request. I tried @using(Html.BeginForm("Action", "Controller", new RouteValueDictionary { { "view", ViewContext.RouteData.Values["view"] } }, FormMethod.Get)) but it doesn't help.

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  • How to use error provider at run time along with associating any control to validate

    - by Shantanu Gupta
    I am trying to create a Validation in a reusable fashion. Purpose: Make the validation control reusable. Error Provider should associate with control passed dynamically and can be set or cleared at run time. When user press OnClick event then all the controls gets validated with their own Error Providers. public bool IsFieldEmpty(ref TextBox txtControl, Boolean SetErrorProvider,string msgToShowOnError) { ErrorProvider EP = new ErrorProvider(); if (txtControl.Text == string.Empty) { if(SetErrorProvider==true) EP.SetError(txtControl, msgToShowOnError); return true; } else { if(SetErrorProvider==true) EP.Clear(); return false; } } Issue: Every time the function is called new errorprovider object gets created which i dont want. Every control should not have more than 1 error provider and i should be able to search it just like as done in asp.net to search for some control on a Page. How can I do this

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  • ValidatorEnable is not defined when rolled with AJAX

    - by tigermain
    I have some webforms which have been working fine with various static and dynamically generated validators. For some reason now that I have implemented UpdatePanels on the forms, when I manually call the ValidatorEnable() method on one of them (when I click a checkbox) I get the "ValidatorEnable is not defined" error message. I am passing the same clientID etc into the method that I was using before I implemented the AJAX.net controls It would seem .net isnt rendering the /WebResource.axd?d=aUu4P3dfjWWyw3KQ9t2ZdqxnzYhrtq9uWWiRZduXE-g1 script to the page, adding it manually I get other missing JS objects. So how can I force it to register the relevant scripts? N.B. The validators in question are being rendered in a repeater

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  • How do I get the co-ordinates of a mouse click on a transformed WPF control?

    - by BlackWasp
    I'm playing with a simple WPF application. One part of it includes a grid containing several controls. The grid is rotated using a LayoutTransform and a RotateTransform. I need to get the co-ordinates of a mouse-click relative to the top-left of the grid, taking the rotation into account. To be clear, let's say I have a single drawing surface within the grid and no transform had been applied. I then click at location X = 20, Y = 10 and put a dot on the drawing surface at that point. If the grid is now rotated by 30 degrees and I click on the dot (which is also moved by the rotation), the click position should still be X = 20, Y = 10.

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  • Using perl's Regexp::Grammars, how do I make a capture dependent on $MATCH?

    - by Evan Carroll
    I've got a token like such: <delim2=((?{ $MATCH{delim} }))> and what I want to happen is for delim2 to capture and be set to the value of delim. When I run this, delim2 is set, but the capture is never done. I think this is an error in my reasoning: I'm trying to chain this form: <ALIAS= ( PATTERN )> Match pattern, save match in $MATCH{ALIAS} and this form: (?{ MATCH{delim} }) into something like this <ALIAS= ( (?{MATCH{delim}) )> Matches the value of $MATCH{delim} save to $MATCH{delim2} but this simply doesn't seem valid. I can verify my original token works <delim2=((?{ die $MATCH{delim} }))> will die with the value, and, if I hard code it, I get the right capture and everything works <delim2=(')>? So how do I go about achieving sane results, while having a dynamic pattern?

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  • firefox sidebar menu or list of elements. resources/help

    - by sujay-jain
    I am struggling to find any resources on firefox extensions which construct a sidebar and put elements into them. plus tyhe other functionalities within a sidebar. I have made a emptysidebar. Now i need to display a dynamic array(which is formed using a JS function). I have absolutely no idea how to go about it. Can someone please help! this is the code of the sidebar page. I need a xul element like the menuitem where i can display a list of items. How do i get that in a sidebar? <page id="sbEmptySidebar" title="emptysidebar" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" > <vbox flex="1"> <label id ="l1"> </vbox> </page>

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  • onTextChanged Event for many Textboxes c#

    - by Alan Bennett
    Hi, I am currently building a prototype for a new system screen, and i am using c# to build this. The question i have is, i currently have 14 textboxes which are filled from a condition from a couple of other controls on the screen. these 14 textboxes all add up to a total shown in another textbox. as these textboxes are editable (in case the client wishes to increase the value) (cant go into to much detail but they will) I need to have a firable ontextchange event for when the values change so the total box updates. however i have a feeling there must be a way of not having to create 14 different events, is there a way that i can have 1 event which fires if any of the 14 text boxes are fired? thanks Alan

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  • C# Processing Enter Key on Custom Container

    - by tycobb
    I am currently building a custom container control. Everything was going along smoothly until I hit a snag during testing. I noticed that the Enter key is not getting processed to the control that has focus inside the container. Everything else works as expected though. I am able to click the button with either the mouse or space bar, but enter does not want to get processed. After doing endless searches on container controls and processing the enter key I have come up with no solution. I tried returning Enter as true in IsInputKey(Keys keyData) and that didn't work. Neither did setting KeyPreview on the form. I have tried it with my custom button and .NET's standard button. Like I mentioned earlier, spacebar will trigger the desired effect. Please tell me what I am missing. There has to be an easy / stupid simple way to get Enter to process over to the active child control.

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  • Page validation not working in javascript

    - by crisgomez
    Hi, I have a problem regarding checking the page validation in javascript. I have a user controls in my aspx page,for example control1, control2, and control3. For each control I created a validation group, then I tried to use the code below, the problem is, it will always return a false value eventhough the page validation has been satisfied.What went wong with the code below?By the way I used Ajax in my application. if (typeof (Page_Validators) != "undefined") { if (typeof (Page_ClientValidate) == 'function') { Page_ClientValidate(); } if (Page_IsValid) { // do something alert('Page is valid!'); } else { // it will always goes here eventhough it was validated successfully alert('Page is not valid!'); } }

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  • Tutorial/resource for implementing VM

    - by zaharpopov
    Hello, I want self-education purpose implement a simple virtual machine for a dynamic language, prefer in C language. Something like the Lua VM, or Parrot, or Python VM, but simpler. Are there any good resources/tutorials on achieving this, apart from looking at code and design documentations of the existing VMs? Thanks in advance for your answers and ideas Edit: why close vote? I don't understand - is this not programming. Please comment if there is specific problem with my question.

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  • Redirects in RoR: Which one to use out of redirect_to and head :moved_permanently?

    - by scrr
    Hello, we are making a website that takes a generated incoming link and forwards the user who is clicking on it to another website while saving a record of the action in our DB. I guess it's basically what ad-services like AdSense do. However, what is the best way to redirect the user? I think html-meta-tag-redirects are out of question. So what other options are there? head :moved_permanently, :location => "http://www.domain.com/" This one is a 301-redirect. The next one is a 302: redirect_to "http://www.domain.com" Are there any others? And which is best to use for our case? The links are highly-dynamic and change all the time. We want to make sure we don't violate any existing standards and of course we don't want search-engines to tag us as spammers (which we are not, btw). Thanks!

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  • Did anyone see the spasticNav.js Menu for jQuery ?

    - by Ricky
    Helooo all, If anyone doesn't know what i'm talking about, this is the link: http://net.tutsplus.com/tutorials/html-css-techniques/how-to-build-a-lava-lamp-style-navigation-menu/ How can i click the menu, and make it “stick” :) without reloading the whole page ? The plugin takes a static state of the tag UL – and run the plugin on it. which mean that if i move the “currentPageItem” from the first LI tag and give it to the next LI tag – the spasticNav doesn’t run for each object again. it still “remembers” the old state. ( because the .js file run only once at the top of the page ) So what should I add to the code in order to get dynamic “Click” event ? ( without reloading the whole page [ ajax ] ) Does anyone have any ideas about this specific plugin ? Thanks.

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  • WPF -- Where do you draw the line between code and XAML?

    - by John Franks
    I'm a long-time C#/.NET programmer but totally new to WPF and the System.Windows.Controls namespace and XAML. The more I learn about it the more I realize that you can do pretty much all of your GUI initialization and event handling glue in either XAML or in code (say C# code or VB.Net code). My question is to those who have been working on WPF for longer and ideally those who have shipped apps with it -- where did you find was the best place to 'draw the line' between XAML and code? Did you use XAML wherever you could? Only where interfacing with non-coding UI designers? Any tips in this area would be extremely helpful to myself and other coders who are just getting into WPF programming and are kind of paralyzed by all the choices we can make!

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  • Can a single solution hold projects from multiple repositories?

    - by cyclotis04
    I've begun setting up SVN repositories to store my code, and am wondering if a single Visual Studio solution can have projects from multiple repositories. I have a shared library with different helper functions, generic custom controls, etc, that are used by multiple projects, and hosted in its own repository. Then I have my project repository, which contains all of the program-specific code such as forms, etc. I know I could copy the shared library into the program's repository, then copy them back when I make changes, but I'd much rather keep them in different repositories so I can hit "Commit" and the general library commits to it's repository, and the program code commits to it. I'm currently using AnkhSVN, but if it's possible with other tools, I'll look into it. Preemptive clarification for all the "just use one repository" answers: The shared library is hosted in an online repository, viewable by anyone, but the program code is proprietary and resides on our office servers, so they need different repositories.

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  • "Thread-Safe Calls" with "Invoke" method to Winform control leads very heavy memory leak!!

    - by konnychen
    In the following link: "Make Thread-Safe Calls to Windows Forms Controls http://msdn.microsoft.com/en-us/library/ms171728.aspx" We can see an example which provide cross tread access to a winform control. But if the thread is in a while loop, it will cause the heavy memory leak. As I use taskmanage I can see the memory is increasing. Can anyone help me to solve the problem? oThread2 = new Thread(new ThreadStart(Cyclic_Call)); oThread2.Start(); delegate void SetText_lab_Statubar(string text); private void m_SetText_lab_Statubar(string text) { if (this.lab_Statubar.InvokeRequired) { SetText_lab_Statubar d = new SetText_lab_Statubar(m_SetText_lab_Statubar); this.Invoke(d, new object[] { text }); } else { this.lab_Statubar.Text = text; } } private void Cyclic_Call() { do { this.m_SetText_lab_Statubar("This string is set from thread"); Thread.Sleep(100); } while (!b_AbortThraed); }

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  • Processing a property in linq to sql

    - by Mostafa
    Hi It's my first LINQ TO SQL Project , So definitely my question could be naive . Till now I used to create new property in Business Object beside of every DateTime Property , That's because i need to do some processing in my DateTime property and show it in special string format for binding to UI Controls .Like : private DateTime _insertDate; /// /// I have "InertDate" field in my Table on Database /// public DateTime InsertDate { get { return _insertDate; } set { _insertDate = value; } } // Because i need to do some processing I create a readonly string property that pass InsertDate to Utility method and return special string Date public string PInsertDate { get { return Utility.ToSpecialDate(_insertDate); } } My question is I don't know how to do it in LINQ . I did like follow but i get run time error. ToosDataContext db = new ToosDataContext(); var newslist = from p in db.News select new {p.NewsId,p.Title,tarikh =MD.Utility.ToSpecialDate( p.ReleaseDate)}; GridView1.DataSource = newslist; GridView1.DataBind();

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  • how to display the Grid on row click evnt on other jquery grid

    - by kumar
    Hello all, please help me out from this problem which i was facing since from long,, Comming to my applicaiton: Using Asp.net MVC with Jquery stuff, with back end DB2 I have a user controls with jquery grid in it, for the Jquery grid the URL I am assing is something like this. ID EmployeName PHoneNumber Deatils /Employee/Orders/Details /// Deails is my actionresult class.. I am getting the output result exactly what I am expecting... now I have one more action result calls LIST( List for that Deatils).. when User click on any row in the Jquery grid I need to pass ID( for that Employee to the DB2 to get that Employee List) and this Grid I need to show i nthe bottom of the first grid, Like If I click on second row I need to pass the ID to the DB2 to get second user result to display on the second grid. can anybody help me with the code.. Thanks

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  • Android: scaling a button with a background image.

    - by jkhouw1
    I'm probably just being daft but my Google searches are not working out well. I have a bunch of buttons i add in code that all have dynamic text. I've set a background image for each of these buttons since the default greybutton doesn't work well for my application. This works perfectly and when the text size (or content) changes, the button automatically grows to accommodate the expanded text. What doesn't work is that I'd like the button to scale proportionally - i.e. if the background image is round, i'd like it to stay round rather than oval as the button gets bigger. With an imagebutton, there is a property "Adjust view bounds" that does exactly this but I cant put text on an imagebutton. Is there something equivalent for a regular button? or am I going about this wrong? i also tried setting the width of the button in code, but I can't seem to determine the new height (button.getHeight() returns 0)

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  • Video with transparent background on page above image background.

    - by fl00r
    Hi! I want to embed some video into my HTML page. As background I want to use big picture. And above it I want to insert loop video with (i.e.) walking man. So, can I embed video (without flash and any player controls) in page? Can I decode video with transparent background? Is there any codecs which support transparent background (alpha-channel)? Now I see this solutions: Making flash (that I don't want to use) Create gif animation (and it will be big file size and quite bad quality)

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  • Differnece between the IE6 and IE8 for Asp.net MVC

    - by kumar
    I am working on my Office PC I dont have, I dont not have Admin rights to download IE8 in my PC..currently I am working in asp.net mvc application with IE6 Browser..some of the things are not working in IE6 for my application, can any body explain me what is the Differnce between IE6 and IE8 for web application, is there any chance that if the web pages are not showing correctly in IE6 it wil show in IE8? Ex: I used Microsoft Charting Controls to dispaly Pie chart for my applciation. the pie chart displaying in Firefox but not in IE6 Ex: some of the checkbox check events not working in IE6 but its working with Firefox. what is the good way to test wihout instaling IE8 on my PC? is there any tools are there? any documents to refer these stuff..? thanks

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  • ScrollViewer GridView XAML

    - by Michel Bakker
    I am currently building a Windows 8 XAML C# application. In a page I have a scrollviewer for horizontal swiping and scrolling. I have several controls in it which work really well with the scorllviewer. But when you scroll and your cursor is on top of the ListView / GridView, then that control will handle scrollnig instead of the scrollviewer. With swiping this doesn't happen, but with the mouse scrollwheel it stops the scrollvieweing scroll. Does anybody know how to disable this behavior or have a workaround?

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  • What exactly is Two-way databinding in WPF ?

    - by blntechie
    I'm learning WPF with MVVM and for a starter, I viewed Jason Dolinger's video on MVVM . In that he mentioned, that one of the advantage of using MVVM with WPF is two-way data binding. My question is what does he mean by two-way data binding? Is that the feature of ability to 1) bind data from controls(View) to properties in VM and 2) any change in collections or properties are reflected in the view? If I'm wrong, can anyone please explain me in detail what it is and what are its advantages? This might be a very simple doubt, but I'm very new to WPF and it's terminologies and moving away from WinForms now.

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