Recent questions tagged wpf

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wpf - List<> collection does not update the View in MVVM

I used the List<Person> collection as the ItemsSource for the DataGrid control. But it did not update the ... <Person> ? Anyone ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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890 views

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wpf - SystemFontFamilies error when binding to combobox

I enumerate the list of fontfamilies and bind to combobox, the problem is when there is a font in the ... .GetFontFace() Please help. THanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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956 views

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wpf - Raise event in C# when another process exits

I don't know if this question was already asked, but I could not find anything on it, so please lead me ... NOT start the process example.exe. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - ObservableDictionary for c#

I'm trying to use following implementation of the ObservableDictionary: ObservableDictionary (C#). When I'm using ... to make this work? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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822 views

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wpf controls - Stop WPF ScrollViewer automatically scrolling to perceived content

The Application I am building an application which includes a range selector. This consists of two custom drawn Slider ... end of the scroll pane. Screenshot of application whe...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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wpf - Text alignment in DataGrid

I'm programming by WPF. I need a way to make center content of cells, in DataGrid control. I use this code also: ... {x:Null}"/> What is wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - Enumerating files in an embedded resource directory

Is there a way, in WPF, to enumerate through all files within a specific embedded resource directory? That is, a ... Action" set to "Resource". See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - Binding to custom dependency property - again

The task: implement the simplest Dependency Property ever, which can be used in xaml like that: <uc:MyUserControl1 ... ="{Binding Text}"/> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - Prevent Automatic Horizontal Scroll in TreeView

Whenever a node is selected in my treeview, it automatically does a horizontal scroll to that item. Is there a way to disable this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - MVVM- View Model-View Model Communications

How do I go about having two view models communicate with one another using MVVM Light. I know how to use ... will then tell the View. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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956 views

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wpf - How do I refresh visual control properties (TextBlock.text) set inside a loop?

With each loop iteration, I want to visually update the text of a textblock. My problem is that the WPF ... the syntax? Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - How to inherit XAML style and override property of child element?

we just got started with XAML and are still fighting with basic issues: Coming from CSS we'd like to ... go with cascading styles? Cheers! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - MVVM: Binding to ListBox.SelectedItem?

How do I bind a view model property to the ListBox.SelectedItem property? I have created a simple MVVM demo ... binding? Thanks for your help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - How can I define and use a variable in XAML to define a color?

I have a number of elements in my XAML which define Foreground="#555" to be the color of faded text in a ... :sys=... reference for this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - Multiline Textbox with automatic vertical scroll

There are a lot of similiar questions over internet, on SO included, but proposed solutions doesn't work in my ... problem. Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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wpf - How to control the Visibility of a textbox with radio button "IsChecked" property?

How to control the Visibility of a textbox with radio button "IsChecked" property? I have a Two textbox's let ... use Convertor ? Please help!! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - Capturing the Enter key in a TextBox

In my WPF view, I am trying to tie an event to the Enter key as follows: <TextBox Width="240" ... textbox when my EnterKey command fires? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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899 views

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wpf - How can I get a vertical scrollbar in my ListBox?

In the example below I have a ListBox with dozens of font names in it. I would have thought it would ... ScrollViewer> </Grid> </StackPanel> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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903 views

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wpf - Should I declare converters in App.xaml or as a per-file resource?

When declaring converters in a WPF application, should I: Declare all my converters in the App.xaml (i.e. in ... of performance, memory, etc.? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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wpf - Disabling button on Validation error

I have couple of textboxes with custom validators: (I don't mind if "wrong" data is sent back to object (the ... ="234" Click="button1_Click" /> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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983 views

1 answer

wpf - Using a Storyboard animation on a programmatically-added control

I'm trying to fade in a new control to my application's "app" area which is programmatically added ... ve registered everything properly :( See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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wpf - How can I draw a circle sector with the ellipse class?

I would like to make a sector of a circle on WP7. I tried to do this with the ellipse class and I found ... area in the picture: Thanks, Laci See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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wpf - Help "?" button

How can add this button to the title bar in WPF, by it being so used in a lot of applications I thought ... 't WPF have anything like that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - Disable DataGrid current cell border in FullRow selection mode

I am using a DataGrid in row selection mode (i.e., SelectionUnit="FullRow"). I simply want to remove the border ... the easiest way to do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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812 views

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wpf - Create Vector From Image

I've read 1,000 posts saying it's possible, but for the life of me, I can't find how to create a vector ... a PNG for use in a WPF application? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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971 views

1 answer

wpf - Handle editable hierarchical data / TreeView~DataGrid hybrid

I am looking for a WPF control which is a hybrid of TreeView and DataGrid, something like the Visual Studio ... be very welcommed as well. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

wpf - How do you handle a ComboBox SelectionChanged in MVVM?

For those doing pure MVVM, how do you handle a ComboBox SelectionChanged event without reverting to code behind? I ... "Test3"/> </ComboBox> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

wpf - Expose DependencyProperty

When developing WPF UserControls, what is the best way to expose a DependencyProperty of a child control as a ... InitializeComponent(); } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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