binding

问题 I have this binding in xaml: <Popup IsOpen="{Binding Path=(local:ListViewBehavior.IsColumnHeaderClicked), RelativeSource={RelativeSource FindAncestor, AncestorType=GridViewColumnHeader}}" ... Popup is located inside GridViewColumn.Header . ListViewBehavior.IsColumnHeaderClicked is a simple bool attached property: public static bool GetIsColumnHeaderClicked(DependencyObject obj) => (bool)obj.GetValue(IsColumnHeaderClickedProperty); public static void SetIsColumnHeaderClicked(DependencyObject

问题 I have many Textboxes and I want to Add the Values(Sum of Integers) of Textboxes and Show it in a textblock on Lost Focus Property .... For example: I fill a Textbox with integer 5 , the value of Textblock Changes to 5.... And after that I fill another Textbox with 4... Textblock changes to 9 . I short How can I bind single TextBlock to Multiple Textboxes with Lost_Focus Property? Please Answer I cannot find it anywhere on Web. 回答1: My Dear, In this way you can easily add textboxes in

问题 I have the following in a UWP app. Notice that my Element descends from DependencyObject, not from a Control, Panel, etc. But when I call the test method MessWithBindings(), the bindings are not working. The PropertyChanged method does fire, but the PropertyChangedEventHandler is null, so it doesn't do anything. Am I supposed to directly setup the event handler somehow? Or is there another call I'm missing that creates it? Incidentally, I have FrameworkElement versions of the BindWidth

问题 I'm having strange issues with a WPF application. I've deployed it under Window Server 2003 and its behavior is different compares to Win7. For example I have this kind of XAML : <GroupBox x:Name="groupbox1"> <GroupBox.Style> <Style BasedOn="{StaticResource {x:Type GroupBox}}" TargetType="{x:Type GroupBox}"> <Style.Triggers> <DataTrigger Binding="{Binding IsModel, UpdateSourceTrigger=PropertyChanged}" Value="True"> <Setter Property="Visibility" Value="Collapsed" /> </DataTrigger> </Style

问题 I have a custom ProgressBar control in XAML and I want to set a TextBox over it to write the ProgressBar Value. But I can't bind the Value correctly. The code part to be fixed: <ControlTemplate.Triggers> <EventTrigger RoutedEvent="ValueChanged"> <BeginStoryboard> <Storyboard> <ObjectAnimationUsingKeyFrames BeginTime="0:0:0" Storyboard.TargetName="txt" Storyboard.TargetProperty="Text"> <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{Binding Path=Value,RelativeSource={RelativeSource

问题 How do you find the index of a ListBoxItem if it is set within a DataTemplate as a Textbox control? Here is the WPF: <ListBox Name="ScriptEditor" Margin="10" Height="291" ItemsSource="{Binding Path=Script}" SelectionChanged="ScriptEditor_SelectionChanged_1" > <ListBox.ItemTemplate> <DataTemplate> <TextBox Text="{Binding Path=Command}"PreviewMouseDoubleClick="Command_DoubleClick" GotFocus="ScriptEditor_GotFocus" /> </DataTemplate> </ListBox.ItemTemplate> </ListBox> When I gain focus of the

问题 Binding a service/factory variable within a controller works perfectly unless the factory variable is initiated through $http. Can anyone explain why? NOTE: Since controller.someVariable = factory.someVariable doesn't work. Currently I am referencing the factory variable directly for manipulation as factory.someVariable Controller: app.controller('SecondCtrl',function($scope,testFactory){ $scope.obj = testFactory.obj; $scope.factory = testFactory; $scope.jsonData = testFactory.jsonData; //Not

问题 I am trying to bind 2 checkboxes together so that when one is checked, the other is checkbox is disabled. Right now I am just trying to get anything to work. Bind one so that if it is not checked, the other elements that it is bound to is disabled. Eventually I want it to be the inverse of whatever is checked(To only have one or the other checked.) I know I will have to use a converter for that. The IsChecked binding is working properly, just not the IsEnabled property. Any help would be

问题 ok so we all know that there is some awesome tools that allow you to bind a bunch of files no matter what extensions they have into one executable file ex: EasyBinder v 2.0 , or some other allow us to embed files into another one and extract them to specific locations when the file is run (extracting them without running them) like the one in Advanced bat to exe converter , but when trying to make a script i struggle to find a way to bind or embed random files according to user input , i know

问题 Now when i select item in first combo box the second mimic the selection. I want to be able to select in each of the combo boxes individually. Thanks. List<W6AdminUIs2.DictionaryObject> taskStatuses = W6AdminUIs2.GlobalFunctions.GetDictionaryItems("TaskStatus"); // Init the binding source of the statuses. BindingSource bsFromStatuses = new BindingSource(); bsFromStatuses.DataSource = taskStatuses; //Bind the "From" combo box to binding source. cBoxFrom.DataSource = bsFromStatuses.DataSource;