xaml

问题 In my WPF MVVM application I want to be able to undo changes to individual TextBox elements using the Esc key. I've set up a command for this and I want to trigger it through XAML thus: <Window.InputBindings> <KeyBinding Command="{Binding EscKeyCommand}" CommandParameter="{Binding FocusManager.FocusedElement}" Gesture="ESC" /> </Window.InputBindings> The idea is that the CommandParameter passes the ElementName of the currently focussed TextBox (if indeed that's what's in focus) and the

问题 In my WPF MVVM application I want to be able to undo changes to individual TextBox elements using the Esc key. I've set up a command for this and I want to trigger it through XAML thus: <Window.InputBindings> <KeyBinding Command="{Binding EscKeyCommand}" CommandParameter="{Binding FocusManager.FocusedElement}" Gesture="ESC" /> </Window.InputBindings> The idea is that the CommandParameter passes the ElementName of the currently focussed TextBox (if indeed that's what's in focus) and the

问题 I have a problem with line's thickness,And I can't figure out what's the reason. I have a stackPanel in which I put in 2 Grid.In each grid,I have two line with same thickness. Code is Here: <StackPanel Width="300" Margin="10" Height="200" VerticalAlignment="Top" Background="LightGray"> <Grid> <Line X1="0" Y1="0" X2="200" Y2="0" Stroke="Red" StrokeThickness="1"/> <Line X1="0" Y1="24" X2="200" Y2="24" Stroke="Red" StrokeThickness="1"/> </Grid> <Grid> <Line X1="0" Y1="0" X2="200" Y2="0" Stroke=

问题 I have a problem with line's thickness,And I can't figure out what's the reason. I have a stackPanel in which I put in 2 Grid.In each grid,I have two line with same thickness. Code is Here: <StackPanel Width="300" Margin="10" Height="200" VerticalAlignment="Top" Background="LightGray"> <Grid> <Line X1="0" Y1="0" X2="200" Y2="0" Stroke="Red" StrokeThickness="1"/> <Line X1="0" Y1="24" X2="200" Y2="24" Stroke="Red" StrokeThickness="1"/> </Grid> <Grid> <Line X1="0" Y1="0" X2="200" Y2="0" Stroke=

问题 Apologies if this question has already been asked, but I have not been able to find an answer to my specific problem. I have a WPF datagrid which is bound to a Collection of objects called Waypoint that implements IDataErrorInfo . Each Waypoint object a set of properties that have DataItem which also implements IDataErrorInfo . Each column in the datagrid is bound to the Value property of the DataItem object, and what I want is for the Waypoint object to be bound to the Row Validation

问题 I have a Xamarin.Forms Project. In this project I already had a blank page but I added a new one, is when the error started showing. The errors that show are: Error XLS0414 The type 'ContentPage' was not found. Verify that you are not missing an assembly reference and that all referenced assemblies have been built. TaskX.Android New.xaml 1 Error XLS0414 The type 'StackLayout' was not found. Verify that you are not missing an assembly reference and that all referenced assemblies have been

问题 I want to change the selection highlight color of a ListBoxItem The split view pane on the left has a ListBox containing the ListBoxItems.The default selection colour is blue and I want to customize it but I'm not able to change it. I couldn't find any property to change the selection highlight color of a ListBoxItem in UWP. 回答1: You can change the style of ListBoxItem to change the selection highlight color.In the style,you should change all the states that contanin ' Selected ' key word to

问题 Is there are any way to replace a file if the same name exists? I can't see any replace method in Azure Storage. Here is my code: var client = new CloudBlobClient( new Uri(" http://sweetapp.blob.core.windows.net/"), credentials); var container = client.GetContainerReference("cakepictures"); await container.CreateIfNotExistsAsync(); var perm = new BlobContainerPermissions(); perm.PublicAccess = BlobContainerPublicAccessType.Blob; await container.SetPermissionsAsync(perm); var blockBlob =

问题 I have an Xamarin Content Page with a List. For the ListItems I want something similar to the cardview in Android. Base on what I found that could be accomplished by a Frame. I have this code: <ViewCell> <StackLayout Padding="8" > <controls:CardView HasShadow="True" OutlineColor="LightGray"> <StackLayout Orientation="Vertical" Padding="5"> // Some labels and Buttons </StackLayout> </Frame> </StackLayout> </ViewCell> The CardView has the following code: public class CardView : Frame { public

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 days ago . Improve this question I am searching for a suggestion how to draw relationship graphs. Like this: There are already some libaries and nuget packages discussed here: How to easily draw graphs in WPF? But I tried all WPF compatible ones and they either depend on a software previously