Recent questions tagged WPF

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I use Caliburn micro for my WPF Project. Static menus are easy to bind with Caliburn <Menu Grid.Row="0" ... to the click from the model 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 custom control not recognized

This is my first foray into custom controls, and it's not going well. I have a custom graph control derived from ... controls. But I'm stumped. 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 - Dynamic PAth Icon Buttons in a Collection ItemTemplate Resource w/ MouseOver

I am working with icons.XAML images, inserting them into buttons above a text block. Everything looks great until I hover ... , name); } } } 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 - Does Silverlight 3 have access to local file system, Open Excel, and print reports?

I was wondering if Silverlight 3 can be used to create line of business applications where I can use file import/export ... in one of the two. 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 RelayCommand CanExecute

I'm implementing an RelayCommand with an execute and an canExecute part. The RelayCommand works when it is without ... ) { return controller; } 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 - What is simplest way to repeat a video in a MediaElement

I have a MediaElement where the source is bound to some data <MediaElement Source='{Binding Something}' /> What is ... 't find such a property. 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 - Button doesn't become disabled when command CanExecute is false

I have a simple-as-can be window with a button tied to a ViewModel with a command. I expect the button ... disabled when CanExecute() is false? 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 - What are routed events and how it's different from normal events

I will appreciate if some body can explain with a simple example. 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 - Why the StaticResource cannot be resolved in this case?

I have got an exception "Cannot find resource named 'mrg'. Resource names are case sensitive." when I try ... StaticResource connot be found ? 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 - Specify transparency level of a named color in XAML

Is there a way in XAML to create a color object from a named color with different custom transparency level? e. ... wanted to quote an example. 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 do I create a datatemplate with content programmatically?

I want to do the following at runtime in code: <DataTemplate x:Key="lightGreenRectangle"> <Rectangle Fill ... " of type DataTemplate. 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 a Control Template

I working on a WPF project where I've over-ridden the CheckBox control for some special operations. That ... nothing about the ControlTemplate. 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 the IsSelected property of ListBoxItem to a property on the object from it's source

I have a WPF ListBox control and I'm setting its ItemsSource to a collection of item objects. How can I bind ... to set as a Binding.Source? 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 - Arranging collection items in a grid

I would like to arrange items of a collection in a grid with a specific number of columns and rows ( ... suggestions would we welcome, 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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wpf - datatrigger binding to viewmodel property

I'm trying to create a simple style data trigger that pulls it's binding value from a viewmodel property, as you can ... )); } } )); } 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 - SecureString to Byte[] C#

How would I get a byte[] equivalent of a SecureString (which I get from a PasswordBox)? My objective is ... the point of having a SecureString 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 - Referencing the correct System.Windows.Interactivity dll from Prism application

I have a WPF Prism application that I'm building. The application is to the point where I want to be ... assemblies to work in my environment? 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 - Unable to set DataGridColumn's ToolTip

I tried the following: <tk:DataGridTextColumn Header="Item" Binding="{Binding Item.Title}" ToolTipService.ToolTip=" ... Is it even implemented? 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 - Expander button on the right side: how to do it?

i want to position the Expander button on the right side of the label. How 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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wpf - Add Rows/Columns to a Grid dynamically

I have a child UserControl comprising of multiple textboxes, labels, image etc. I need to populate this user ... do this in my ViewModel. 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 - Listen to DependencyProperty changed event and get the old value

I have the following code to subscribe to property changed event for VisiblePosition property of Column class: ... do that? 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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wpf - In .Net: best way for keeping CurrentCulture on new Thread?

In a .Net 4.0 WPF project, we need to keep the same CurrentCulture on each thread then we have on the ... we should initialize to keep track? 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 UI from freezing without additional threads

What solutions do I have if I want to prevent the UI from freezing while I deserialize a large number ... regarding perhaps multiple UI Threads? 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 with UpdateSourceTrigger==LostFocus do not fire for Menu or Toolbar interaction

I noticed that bindings with UpdateSourceTrigger==LostFocus do not get updated when the user activates ... UpdateSourceTrigger=PropertyChanged. 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 - Visible line count of a TextBlock

If you set TextWrapping to "Wrap", a WPF TextBlock can have several lines of text. Is there a "clean" way to ... dirty. Is there a better way? 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 - What do parentheses in binding paths mean?

Recently i've read 'Databinding overview' article at MSDN and there is such sample code: <TextBox.ToolTip> ... .Errors)[0].ErrorContent" 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 fix the DependencyPropertyDescriptor AddValueChanged Memory Leak on AttachedBehavior?

I know I need to call RemoveValueChanged, but I have not been able to find a reliable place to call this. ... >(m_TextBlockAdorner); } } } 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 a CollectionViewSource within a DataTemplate

'ContentTemplate' is a DataTemplate that displays an object which has a member 'FooList' (an ObservableCollection). ... at the correct object? See Question&Answers more detail:os...

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

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