xaml

问题 I'm fairly new to the world of Silverlight so please bear with me. I have created a custom pivot item control to be displayed in a pivot control. Now in this custom control there's a button. Now i could just add the click event handler to the button in the custom control's backing cs file and that would be ok. But is there a way for me to specify the event handler of the custom control's button during the declaration of the custom control? i.e. something like this in my pivot_page.xaml

问题 I'm setting up some things in XAML, but for some reason, I'm having an issue. I'm trying to add an ObjectDataProvider to my resources, but when I'm doing that, I get this warning on my resourcedictionnary saying i cannot have multiple items in a resourcedictionnary if they don't all have key attribute in it. So I add a key to resourcedictionnary, but then I have a problem on my dynamic resource in my contentcontrol. It says it cannot resolve "DefaultEmptyPane". Then I add a reference to the

问题 How to access a named control that is in the content template of the contentpresenter. how to access the webview control(x:name=detView) from cs file. <ContentPresenter x:Name="DetailContentPresenter" Grid.Row="0" BorderBrush="{ThemeResource SystemControlForegroundBaseLowBrush}" Content="{x:Bind coll.SelectedItem,Mode=OneWay}"> <ContentPresenter.ContentTemplate> <DataTemplate x:DataType="data:coll_Details" x:Name="ttt"> <Grid> <WebView DefaultBackgroundColor="#F5F5F5" x:Name="detView" Source=

问题 I've got a style setter in a themes xaml file. I'm trying to bind the value of the Setter to a bool peoperty in a view model. I've got the namespace to the view model in themes: xmlns:propertyGrid="clr-namespace:MY.App.Controls.PropertyGrid;assembly=MY.APP.Controls" and the binding in the style: <Setter Property="IsExpanded" Value="{Binding Source={StaticResource propertyGrid:PropertyGridViewModel}, Path=AreCategoriesAutoExpanded}"/> Finally in the viewmodel I just have an auto property:

问题 I've got a style setter in a themes xaml file. I'm trying to bind the value of the Setter to a bool peoperty in a view model. I've got the namespace to the view model in themes: xmlns:propertyGrid="clr-namespace:MY.App.Controls.PropertyGrid;assembly=MY.APP.Controls" and the binding in the style: <Setter Property="IsExpanded" Value="{Binding Source={StaticResource propertyGrid:PropertyGridViewModel}, Path=AreCategoriesAutoExpanded}"/> Finally in the viewmodel I just have an auto property:

问题 I have a list of objects in my application using which I want to create Wrappanels dynamically. One way is to write control adding in code behind as below. WrapPanel RuleInternalCond = new WrapPanel(); // Create operator combo box and fill all operators ComboBox operatorCb = new ComboBox(); operatorCb.Items.Add("OR"); operatorCb.Items.Add("AND"); RuleInternalCond.Children.Add(operatorCb); But is there a better way to create a template of the wrap panel, bind it to my properties and use my

问题 I would like to simplify the addition of dialog popups in my code to the absolute minimum needed. Currently I have this code: <pages:PopupPage x:Class="Test.Popup" xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:pages="clr-namespace:Rg.Plugins.Popup.Pages;assembly=Rg.Plugins.Popup"> <ContentView HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand"> <t:PopupFrame> <Label Text="ABC" /> <Label Text="ABC" /> </t:PopupFrame> <

问题 I have a modal dialog I am displaying using the WPF Extended Toolkit's ChildWindow but I don't like the default look of the window since it doesn't support System Colors correctly (it has a forced white background) and doesn't adapt to the Windows Classic Shell when being used. I am therefore trying to create my own style for the ChildWindow but in doing so I've broken the dialog behaviour of the control - how would I style it to get this behaviour back? My style for the dialog is as follows.

问题 There are some elements in a grid, and all I want is to show/hide the button when a mouse is over a rectangle. <UserControl ...> <Grid> <Rectangle ...> <Button ...> </Grid> </UserControl> I've tried several triggers but was unsuccessful so far. Please help. 回答1: This is what you need: A datatrigger bound to the Control to trigger it alternativly you could use a converter sth like a BoolenToInvisibilityConverter Ps if you want to invert the logic you need to set the visibility in the style as

问题 I have a list view set with item source as child. I want to bind a child object to a view which will set the color through the converter. The converter method got called but the value i passed in was null . Apart from dot, I also use Path=/ but the value passed to the converter still null . If i bind the property, it's fine but not the current item. <ListView x:Name="childListView" VerticalOptions="FillAndExpand" HasUnevenRows="true" ItemSelected="OnItemSelected" ItemTapped="OnItemTapped">