binding

问题 I need create keyPress (enter) binding for input. <div id="body"> <input type="text" data-value-update="keyup" data-bind="value: text, keyPress: onKeyPress"/> <div id="output"></div> </div> js: kendo.data.binders.widget.keyPress = kendo.data.Binder.extend({ init: function (element, bindings, options) { kendo.data.Binder.fn.init.call(this, element, bindings, options); var binding = this.bindings.keyPress; $(element.input).bind("keypress", function (e) { if (e.which == 13) { binding.get(); } })

问题 I'm putting together some generic CellTemplate styles for a WPF grid (WPFToolKit DataGrid), and I’m not sure of the syntax to use to make the binding generic. So for example, I have this template, which turns the value red if the value is negative: <DataTemplate x:Key="RedNegativeCellTemplate"> <TextBlock Name="QuantityTextBox" Text="{Binding Quantity, StringFormat='c', Mode=OneWay}"/> <DataTemplate.Triggers> <DataTrigger Binding="{Binding Quantity, Converter={StaticResource SignConverter}}"

问题 On one form I have a Label and an Edit Button. When the Edit Button is clicked the control template for the label changes to show a TextBox and a Save Button. That Save Button is tied to a Save Command on the View Model. My question / problem is, when the Save button is clicked I want it to change the control template back to being a label either before or after the Command Executes on the View Model. In my particular case all it needs to do is set a property on my label to True whenever the

问题 I get the following error Fatal error: Call to a member function execute() on a non-object in /home/wt/public_html/view-reports.php on line 237 . I also see another problem. The variables generated doesn't echo the right corresponding data. For instance, $rep_type echo position. Could you please help me on this. Thank you! Test site url is here. ethioserver.com/~wt/view-reports.php?rep_id=144 The problem is not visible in wampserver. The php version in both servers is 5.4. The main code is

问题 I have an array: string Companies[,] = new string[100,7]; How can I put it to a dataGrid? I can't find any answear which works and I don't know where to start. I'm new to WPF, so can someone explain it to me, please? 回答1: Please use ItemsSource to assign data collections. I suggest you to read about MVVM implementation for WPF. But to start... Create a class that implements INotifyPropertyChanged interface public class Employer : INotifyPropertyChanged { private string nameField; public

问题 I made a Route model binding in the RouteServiceProvider : public function boot(Router $router) { parent::boot($router); $router->model('article', 'App\Article'); } My route group: Route::group(['prefix' => 'articles'], function(){ //some routes .... Route::group(['prefix' => '{article}'], function(){ Route::get('', [ 'as' => 'article.show', 'uses' => 'ArticlesController@show' ]); Route::get('comments', [ 'as' => 'article.comments', 'uses' => 'ArticlesController@comments' ]); }); });

问题 I try bind observable dictionary to listbox item, and my problem is. If I use normal generic dictionary, it works good. But if I use observable dictionary, listbox items are not loaded. Here is observable dictionary class: public class MyObservableDictionary<TKey, TValue> : IDictionary<TKey, TValue>, INotifyCollectionChanged, INotifyPropertyChanged { private readonly IDictionary<TKey, TValue> _dictionary = new Dictionary<TKey, TValue>(); #region Implementation of INotifyCollectionChanged

问题 I have a Grid with 2 rows: <Grid> <Grid.RowDefinitions> <RowDefinition Height="150"/> <RowDefinition /> <RowDefinition Height="Auto" x:Name="OtherContactsRow" /> </Grid.RowDefinitions> Something here </Grid> and 2 Storyboard s: <Storyboard x:Key="MaximizedStoryboard"> <DoubleAnimation From="20" To="150" Duration="0:0:2" Storyboard.TargetName="OtherContactsRow" Storyboard.TargetProperty="Height" > </DoubleAnimation> </Storyboard> <Storyboard x:Key="MinimizedStoryboard"> <DoubleAnimation From=

问题 First, note that this is just a learning exercise for me. The intent is to produce a .NET messagebox using nothing but pure C++ (not C++/CLI) and late binding as necessary. This works fine with just a title and text in the messagebox. However, when I try to specify buttons I get back 2147942487 "The parameter is incorrect". On the .NET side MessageBox.Show has this as an enum type argument. I am guessing that somehow the integer supplied as argument from C++, isn't automatically converted

问题 I am trying to learn Haskell but it is a little hard as non of my bindings are remembered from the command line; output from my terminal below. > let b = [] > b [] > 1:b [1] > b [] I have no idea why this is like this can anyone please help. 回答1: What did you expect your example to do? From what you've presented, I don't see anything surprising. Of course, that answer is probably surprising to you, or you wouldn't have asked. And I'll be honest: I can guess what you were expecting. If I'm