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• Cannot bind text field to selected item in JTable in NetBeans

  - by titaniumdecoy

  I am trying to use NetBeans to bind a JTextField to the selected element of a JTable. The JTable gets its data from an AbstractTableModel subclass which returns Cow objects. At present, each Cow object is displayed as a string through its toString method. The binding seems obvious but does not work; the bound value of the text field is always null. I bound the text property of the JTextField in NetBeans to: flowTable[${selectedElement.prefix}] This produces the following line of generated code: org.jdesktop.beansbinding.Binding binding = org.jdesktop.beansbinding.Bindings.createAutoBinding( org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, flowTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.prefix}"), courseNameTextField, org.jdesktop.beansbinding.BeanProperty.create("text")); What am I doing wrong?

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• Android Bind Spinner to Class

  - by drbob

  I'm having some trouble with the Spinner widget. Given the following code: ArrayList<Person> people= new ArrayList<Person>(); Person = null; for(int i = 0; i!= 10; i++) { p = new Person(); s.setID(i); s.setName("Name " + i); people.add(s); } I'm using the following code to bind it to a Spinner: Spinner spinner1 = (Spinner) findViewById (R.id.spinner); ArrayAdapter<Person> adapter = new ArrayAdapter<Person>(this, android.R.layout.simple_spinner_item, people); spinner1.setAdapter(adapter); What I would like is for the value (id) to be hidden but passed when selected, and the name to appear. Any help is appreciated. Thanks.

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• WPF bind to a static double var

  - by devin250

  hi, i have these double values: public partial class Window1 : Window { public Window1() { InitializeComponent(); double num1 = 50.0; double num2 = 90.0; double num3 = 120.0; double num4 = 20.0; double num5 = 80.0; } } how do i bind them to xaml? <vc:Chart.Series> <vc:DataSeries RenderAs="Column" AxisYType="Primary" > <vc:DataSeries.DataPoints> <vc:DataPoint AxisXLabel="Wall-Mart" YValue="{Binding Source={StaticResource num1}}" /> .... help please

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• how to bind selected users

  - by kumar

  I used this code to select top 5 users from jquery grid on button click.. $('#myButton').click(function() { $('#Grid input[type=checkbox]:lt(5)').attr('checked','checked'); }); its working fyn if I click the button its checking the check boxes.. my work is after checkin any box if I click other button send the selected user need to go to other page.if not pop up message to selct atleast one user.. the above code I implemented its checking fyn but if i click send its saying pop up mesage is that do i need to bind again to the grid? or what do i need to do? thanks

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• jQuery UI Tabs - bind tabs to links on the same page

  - by Troy

  Hello, I'm trying to bind tabs to a link on the same page, but I'm a relative newby to jQuery and need some help. I have the tabs working with the code from jQuery UI site. However, how do I bind the links in the sidebar on the same page? <script> $(function() { $( "#tabs" ).tabs(); }); /script> <div class="demo"> <div id="tabs"> <ul> <li><a href="#tabs-1">Nunc tincidunt</a></li> <li><a href="#tabs-2">Proin dolor</a></li> <li><a href="#tabs-3">Aenean lacinia</a></li> </ul> <div id="tabs-1"> <p>Proin elit arcu, rutrum commodo, vehicula tempus, commodo a, risus. Curabitur nec arcu. Donec sollicitudin mi sit amet mauris. Nam elementum quam ullamcorper ante. Etiam aliquet massa et lorem. Mauris dapibus lacus auctor risus. Aenean tempor ullamcorper leo. Vivamus sed magna quis ligula eleifend adipiscing. Duis orci. Aliquam sodales tortor vitae ipsum. Aliquam nulla. Duis aliquam molestie erat. Ut et mauris vel pede varius sollicitudin. Sed ut dolor nec orci tincidunt interdum. Phasellus ipsum. Nunc tristique tempus lectus.</p> </div> <div id="tabs-2"> <p>Morbi tincidunt, dui sit amet facilisis feugiat, odio metus gravida ante, ut pharetra massa metus id nunc. Duis scelerisque molestie turpis. Sed fringilla, massa eget luctus malesuada, metus eros molestie lectus, ut tempus eros massa ut dolor. Aenean aliquet fringilla sem. Suspendisse sed ligula in ligula suscipit aliquam. Praesent in eros vestibulum mi adipiscing adipiscing. Morbi facilisis. Curabitur ornare consequat nunc. Aenean vel metus. Ut posuere viverra nulla. Aliquam erat volutpat. Pellentesque convallis. Maecenas feugiat, tellus pellentesque pretium posuere, felis lorem euismod felis, eu ornare leo nisi vel felis. Mauris consectetur tortor et purus.</p> </div> <div id="tabs-3"> <p>Mauris eleifend est et turpis. Duis id erat. Suspendisse potenti. Aliquam vulputate, pede vel vehicula accumsan, mi neque rutrum erat, eu congue orci lorem eget lorem. Vestibulum non ante. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Fusce sodales. Quisque eu urna vel enim commodo pellentesque. Praesent eu risus hendrerit ligula tempus pretium. Curabitur lorem enim, pretium nec, feugiat nec, luctus a, lacus.</p> <p>Duis cursus. Maecenas ligula eros, blandit nec, pharetra at, semper at, magna. Nullam ac lacus. Nulla facilisi. Praesent viverra justo vitae neque. Praesent blandit adipiscing velit. Suspendisse potenti. Donec mattis, pede vel pharetra blandit, magna ligula faucibus eros, id euismod lacus dolor eget odio. Nam scelerisque. Donec non libero sed nulla mattis commodo. Ut sagittis. Donec nisi lectus, feugiat porttitor, tempor ac, tempor vitae, pede. Aenean vehicula velit eu tellus interdum rutrum. Maecenas commodo. Pellentesque nec elit. Fusce in lacus. Vivamus a libero vitae lectus hendrerit hendrerit.</p> </div> </div> </div> <div id="sidebar"> <a href="#tab-1" id="tab-1"><img src="image1.jpg" /></a> <a href="#tab-2" id="tab-2"><img src="image2.jpg" /></a> </div>

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• Boost::Mutex & Malloc

  - by M. Tibbits

  Hi all, I'm trying to use a faster memory allocator in C++. I can't use Hoard due to licensing / cost. I was using NEDMalloc in a single threaded setting and got excellent performance, but I'm wondering if I should switch to something else -- as I understand things, NEDMalloc is just a replacement for C-based malloc() & free(), not the C++-based new & delete operators (which I use extensively). The problem is that I now need to be thread-safe, so I'm trying to malloc an object which is reference counted (to prevent excess copying), but which also contains a mutex pointer. That way, if you're about to delete the last copy, you first need to lock the pointer, then free the object, and lastly unlock & free the mutex. However, using malloc to create a boost::mutex appears impossible because I can't initialize the private object as calling the constructor directly ist verboten. So I'm left with this odd situation, where I'm using new to allocate the lock and nedmalloc to allocate everything else. But when I allocate a large amount of memory, I run into allocation errors (which disappear when I switch to malloc instead of nedmalloc ~ but the performance is terrible). My guess is that this is due to fragmentation in the memory and an inability of nedmalloc and new to place nice side by side. There has to be a better solution. What would you suggest?

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• Using ObjectBindingDatasource to bind to object exposing Lists, cant drag and drop fields onto repor

  - by SKM

  Hey Guys Ive used the ObjectBindingDatasource to bind to a class Ive called "ReportViewModel" which contains properties such as List Companies {get; set;} List Managers {get; set;} in its constructor Im just calling a method to populate with dummy data Managers = new ReportDataRepository().GetManagers(); Companies = new ReportDataReposiroty().GetCompanies(); ... When i create the new Datasource , it shows the ReportViewModel class with the Lists under it. I expand the Companies object and attempt draging and dropping fields onto the report designer and it works. Though doesnt allow me to drag and drop for any other List. Any guidance would be really appreciated.

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• using the data-custom="" to bind to events

  - by Dean Peterson

  I'm pretty sure I'm gonna get slammed on this. I love using the data-whatever attribute to bind events to. It feels very clean to me and helps reserve my class attribute for just styling. I know this selector is among the slowest, so I don't use it when there are a lot of elements. Would love to hear compelling arguments against this. $("body").delegate("[data-action]", "click", function(){ var action = $(this).attr("data-action"); //route action to appropriate function });

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• Want to bind an input field to a jquery-ui slider handle

  - by BFTrick

  hello, I want to bind an input field to the jquery-ui slider handle. So whenever one value changes I want the other value to also change. Ex: if someone types 1000 into the minimum value input field I want the lower slider handle to move to the 1000 mark. Also if the user drags the lower slider handle to 1000 the input field should reflect that. Making the slider reflect the changes in the input field is easy: $(minYearInput).blur(function () { $("#yearSlider").slider("values", 0, parseInt($(this).val())); }); $(maxYearInput).blur(function () { $("#yearSlider").slider("values", 1, parseInt($(this).val())); }); I just need help making the text fields mimic the slider. $("#yearSlider").slider({ range: true, min: 1994, max: 2011, step: 1, values: [ 1994 , 2011 ], slide: function(event, ui) { //what goes here? } }); Any ideas? A similar question from this site: http://stackoverflow.com/questions/1330008/jquery-ui-slider-input-a-value-and-slider-move-to-location

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• Why aren't these shared_ptrs pointing to the same container?

  - by BeeBand

  I have a class Model: class Model { ... boost::shared_ptr<Deck> _deck; boost::shared_ptr<CardStack> _stack[22]; }; Deck inherits from CardStack. I tried to make _stack[0] point to the same thing that _deck points to by going: { _deck = boost::shared_ptr<Deck>(new Deck()); _stack[0] = _deck; } It seems that the assignment to _deck of _stack[0] results in a copy of _deck being made. How can I get them to point to the same thing?

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• How to bind Dictionary with ComboBox and textbox?

  - by younevertell

  I have a Dictionary, where Person is a class, defined below String role; public class Person { public string firstname{ get; set; } public string lastname{ get; set; } public string city{ get; set; } } my question is how to bind the Dictionary key: String with a ComboBox, menwhile. have the Dictionary value: Person connected with three textboxes. That is, once a key is selected in the ComboBox, the corresponding value, firstname, lastname, city are shown in the three textboxes respectively? Thanks in advance!

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• Bind Data after TCP receive.

  - by gtas

  I have this strange problem all day now. I dunno if you handled something similar. I used two different serializers and now i know its not this problem. Im sending some data over TCP Sockets. Serialize - Send - Deserialize, everything works ok, i can get my objects search through them, use they're properties! But, if e.g receive a BusinessObject[] and convert into List<BusinessObject>, then bind the list in a Control.DataSource = businessObjectList; BOOM! NotSupportedException. Tried it with 3 different controls. Same behaviour. My head is empty of ideas right now!! The Send TCP happens on Desktop Framework, Receive on Compact Framework. But i dont think this has to do with anything. I wish for an explanation on this!

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• shared_ptr requires complete type; cannot use it with lua_State*

  - by topright

  Hello! I'm writing a C++/OOP wrapper for Lua. My code is: class LuaState { boost::shared_ptr<lua_State> L; LuaState(): L( luaL_newstate(), LuaState::CustomDeleter ) { } } The problem is lua_State is incomplete type and shared_ptr constructor requires complete type. And I need safe pointer sharing. (Funny thing boost docs say most functions do not require complete type, but constructor requires, so there is no way of using it. http://www.boost.org/doc/libs/1_42_0/libs/smart_ptr/smart_ptr.htm) Can can I solve this? Thank you.

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• Is there an easy way to make `boost::ptr_vector` more debugger friendly in Visual Studio?

  - by Billy ONeal

  I'm considering using boost::ptr_container as a result of the responses from this question. My biggest problem with the library is that I cannot view the contents of the collection in the debugger, because the MSVC debugger doesn't recognize it, and therefore I cannot see the contents of the containers. (All the data gets stored as void * internally) I've heard MSVC has a feature called "debugger visualizers" which would allow the user to make the debugger smarter about these kinds of things, but I've never written anything like this, and I'm not hugely firmiliar with such things. For example, compare the behavior of boost::shared_ptr with MSVC's own std::tr1::shared_ptr. In the debugger (i.e. in the Watch window), the boost version shows up as a big mess of internal variables used for implementing the shared pointer, but the MSVC version shows up as a plain pointer to the object (and the shared_ptr's innards are hidden). How can I get started either using or implementing such a thing?

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• Data bind enum properties to grid and display description

  - by TrueWill

  This is a similar question to How to bind a custom Enum description to a DataGrid, but in my case I have multiple properties. public enum ExpectationResult { [Description("-")] NoExpectation, [Description("Passed")] Pass, [Description("FAILED")] Fail } public class TestResult { public string TestDescription { get; set; } public ExpectationResult RequiredExpectationResult { get; set; } public ExpectationResult NonRequiredExpectationResult { get; set; } } I'm binding a BindingList<TestResult> to a WinForms DataGridView (actually a DevExpress.XtraGrid.GridControl, but a generic solution would be more widely applicable). I want the descriptions to appear rather than the enum names. How can I accomplish this? (There are no constraints on the class/enum/attributes; I can change them at will.)

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• Simple Binding question, unable to bind to button command in a DataTemplate using MVVM Light Toolkit

  - by deliberative assembly

  I've been attempting to bind to buttons within a DataTemplate without much success. The button does not fire. Button Click works successfully outside of the DataTemplate. Yet if I create a Click="button_click" the click button is fired. The Button Content binds perfectly as well. Example to illustrate.. Why does the command not fire? Advice on how this should be handled this? The example is a simplified version of my real problem, I am currently not using a Listbox. I only recreated the same problem with a listbox..

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• Best way to bind node collection to itemscontrol in Silverilght

  - by mrtrombone

  I have a Silverlight project where the main objects are just a bunch of nodes that are joined to each other. A parent node can have many children. I want to be able to bind the nodes to an itemscontrol or similar and so was wondering how to best structure the parent child relationship. Is it OK to create a flat top level list of all nodes (List allNodes) and add each node to that, binding the list to the itemscontrol, then on top of that add each node to it's parent's 'childnodes' list to establish the structure - or am I doing some kind of ugly doubling up? Just hoping there is some kind of best practice or pattern I can latch on to Thanks

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• WPF: How to bind RadioButtons to an enum?

  - by Sam

  I've got an enum like this: public enum MyLovelyEnum { FirstSelection, TheOtherSelection, YetAnotherOne }; I got a property in my DataContext: public MyLovelyEnum VeryLovelyEnum { get; set; } And I got three RadioButtons in my WPF client. <RadioButton Margin="3">First Selection</RadioButton> <RadioButton Margin="3">The Other Selection</RadioButton> <RadioButton Margin="3">Yet Another one</RadioButton> Now how do I bind the RadioButtons to the property for proper two-way-binding?

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• How to use Bind Prefix?

  - by chobo2

  Hi Say if I had this table in my db: Product It had ProductId ProductName ProductType Now for whatever reason I can't name my textboxes ProductName and ProductType so now my View Method would look like this public ViewResult Test([Bind(Exclude ="ProductId")] Product) So now through my playing around nothing would be matched in this product since they have different names. So I guess this is where Prefix would come in but I don't know how to use it. Nor how do I use it and Exclude at the same time. Can someone give me an example?

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• bind a two-dimensional array to a repeater - error

  - by Cristian Boariu

  Hi, I have this array: string[,] productData = new string[5,7]; I bind it to a repeater and a call a method like: <img src="<%# getPhoto1WithReplace(Container.ItemIndex) %>" which is defined like: public String getPhoto1WithReplace(Object itemIndex) { int intItemIndex = Int32.Parse(itemIndex.ToString()); if (productData[intItemIndex, 3] != null) return this.ResolveUrl(productData[intItemIndex, 3].ToString()); else return String.Empty; } I do not understand why it calls getPhoto1WithReplace with itemIndex as 5. My array has 5 indexes: 0,1,2,3,4, so HOW Container.ItemIndex can be 5...?

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• How to bind to current riacontext user in xaml

  - by Jakob

  Hi. I Have a datacontext that has a "getuserbyguid" method, i want to pass in the current logged in user.userid as a parameter, but I don't know how to bind to the current logged in user through xaml. I've tried {Binding Path=User.UserId} but without any luck. I'm using the built in riaservices authentication methods, so the userinfo should be exposed in the riacontext, or am I wrong about this? I have this for instance <riaControls:DomainDataSource x:Name="FollowingGridData" AutoLoad="True" QueryName="GetUsersFollowedByIDQuery" LoadSize="20"> <riaControls:DomainDataSource.DomainContext> <my:NotesDomainContext /> </riaControls:DomainDataSource.DomainContext> <riaControls:DomainDataSource.QueryParameters> <riaControls:Parameter ParameterName="userguid" Value="{Binding Path=User.UserId}" /> </riaControls:DomainDataSource.QueryParameters> </riaControls:DomainDataSource> But it gives me an error saying that it's not a guid, meaning that it must not be binding correctly

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• Unable to bind with any property of UserControl

  - by Agha Khan

  I looked your answer where I was also using this.DataContext=this. I am unable to convince myself why I have to remove it? But I did In my UserControl control I have 6 int properties (RedCount, GreenCount …) I am using .NET 3.5 and basically I wanted to use StringFormat with Binding. In my xaml file I have 6 Labels with I would like to bind, and I did what exactly you told in last reply. For some strange reasons it didn’t work. I don't know why it does not work. I placed break point in converter where I never hit it. This imples Binding failed.

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• Bind ListBox to List<Image>

  - by Pyush

  I need to bind a List of Images to a list box. My code being: <ListBox x:Name="lstImages"> <ListBox.ItemTemplate> <DataTemplate DataType="{x:Type Image}"> <StackPanel> <Image Source="{Binding Path=UnassignedImages}"></Image> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> Code behind: lstImages.ItemsSource = this.audit.UnassignedImages; Where UnassignedImages being List I tried using both lstImages.ItemsSource & lstImages.DataContent, but none works. Thanks.

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• how to jquery event bind to function

  - by sunglim

  $(function(){ $("#btnExcelRead").click(CheckValidation); }); var CheckValidation = function() { if ($("#excelUpload").val() === "") { alert("Select file"); return false; } if ($("$txtStartDate").val() === "") { alert("Check the start date!"); return false; } if ($("$txtEndDate").val() === "") { alert("Check the end date!"); return false; } } here i made simple jquery code. I want to bind function when btnExcelRead button click. is this originally wrong way?

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• AngularJS Bind Attribute Presence

  - by Chuck

  I want to bind the presence of an attribute to a variable in AngularJS. Specifically, sandbox for an iframe. Say I have $myCtrl.allowJavascript as a variable, I want to do: <iframe src="..." sandbox /> Where the sandbox attribute is present when allowJavascript == false, and I want the sandbox attribute to disappear when allowJavascript == true. Does AngularJS have a mechanism for this? The closest thing I could find was here, which basically says "it will just work for certain attributes"--but not for sandbox.

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