binding

问题 I have a DataGrid bound to an ICollectionView in my ViewModel. The DataGrid is inside a UserControl which is used in a few different data scenarios, some of which require certain DataGrid columns while others don't. I just want to bind the DataGridTemplateColumn's Visibility property to the inner label's Content property so if none of the rows contain a value, it will be hidden. I have a String to Visibility converter set, but can't figure out how to find the inner lable's Content property.

问题 I have a DataGrid bound to an ICollectionView in my ViewModel. The DataGrid is inside a UserControl which is used in a few different data scenarios, some of which require certain DataGrid columns while others don't. I just want to bind the DataGridTemplateColumn's Visibility property to the inner label's Content property so if none of the rows contain a value, it will be hidden. I have a String to Visibility converter set, but can't figure out how to find the inner lable's Content property.

问题 How can I access the datacontext of the parent element in windows phone 8? AncestorType is not available in WP8. <ItemsControl x:Name="Elements" ItemsSource="{Binding MyList}" Grid.Row="2" Grid.Column="3"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <toolkit:WrapPanel /> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> <ItemsControl.ItemTemplate> <DataTemplate> <Button Content="e" Width="100" Height="100" Command="{Binding MyCommand" /> </DataTemplate> </ItemsControl.ItemTemplate> <

问题 I have an object that can't inherit DependencyObject OR use NotifyPropertyChanged, and I've binded it to quite a few controls, so when the properties change, I don't want to go to each control and change it's value on the code, so I'm thinking there must be a way to tell the XAML to "Rebind" all that it's bound to with one or two lines of code, instead of going: label1.Content = myObject.DontNotifyThis; label2.Content = myObject.DontNotifyThisEither; label3.Content = myObject

问题 Sorry - my question is almost identical to this one but since it didn't receive a viable answer, I am hoping that someone else has some fresh ideas. I have a WPF TreeView that is bound to a hierarchy of a single type: public class Entity { public string Title { get; set; } public ObservableCollection<Entity> Children { get; set; } } The Entity class implements INotifyPropertyChanged, but I have omitted this code for clarity. The TreeView is bound to an ObservableCollection<Entity> and each

问题 I am currently trying to implement a relatively simple data management app. I have a class Member and a BindingList<Member> membersList , as well as a ListBox and some TextBox es. The ListBox is bound to membersList . Now I, ideally, want to bind the TextBox es to ListBox.SelectedItem , so that whatever element the user has selected in the ListBox , when they edit a TextBox the element in membersList is updated. I tried just binding the TextBox es to ListBox.SelectedItem , but this made the

问题 I have a situation where I need to create View box with one button. The xaml for this is as below: Please observe Width property of viewbox. The Width should be increased/decreased according to a slider bar(moving to right increases it, to left decreases it). As listed below I know how to do it in xaml and it works fine. But my requirement is to be able to create viewbox in code behind and assign it the properties. <WrapPanel x:Name="_wrpImageButtons" Grid.IsSharedSizeScope="True"

问题 I have this: <TabControl Margin="0,24,0,0">...</TabControl> I want to bind only the "Top" part of the TabControl, which intuitively I would do it this way: <TabControl Margin="0,{Binding ElementName=TheMenu, Path=Height},0,0"> ... </TabControl> How do I do it ? 回答1: Have you tried using a converter like this? in VB.Net Public Class MarginConverter Implements IValueConverter Public Function Convert(ByVal value As Object, ByVal targetType As System.Type, ByVal parameter As Object, ByVal culture

问题 I have this: <TabControl Margin="0,24,0,0">...</TabControl> I want to bind only the "Top" part of the TabControl, which intuitively I would do it this way: <TabControl Margin="0,{Binding ElementName=TheMenu, Path=Height},0,0"> ... </TabControl> How do I do it ? 回答1: Have you tried using a converter like this? in VB.Net Public Class MarginConverter Implements IValueConverter Public Function Convert(ByVal value As Object, ByVal targetType As System.Type, ByVal parameter As Object, ByVal culture

问题 I have this: <TabControl Margin="0,24,0,0">...</TabControl> I want to bind only the "Top" part of the TabControl, which intuitively I would do it this way: <TabControl Margin="0,{Binding ElementName=TheMenu, Path=Height},0,0"> ... </TabControl> How do I do it ? 回答1: Have you tried using a converter like this? in VB.Net Public Class MarginConverter Implements IValueConverter Public Function Convert(ByVal value As Object, ByVal targetType As System.Type, ByVal parameter As Object, ByVal culture