Recent questions tagged wpf

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wpf - Why are DataContext and ItemsSource not redundant?

In WPF Databinding, I understand that you have DataContext which tells an element what data it is going to ... in various coding scenarios? See Question&Answers more detail:os...

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

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920 views

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wpf - What's the difference between the Window.Loaded and Window.ContentRendered events

What's the difference between the Window.Loaded and Window.ContentRendered events in WPF? Is the ContentRendered ... even more confusing now. 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 bind an ObservableCollection of ViewModels to a MenuItem?

When I bind Menu Items with an ObservableCollection, only the "inner" area of the MenuItem is clickable: alt ... MainMenuTemplate}"/> </Menu> 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 - XAML or C# code-behind

I don't like to use XAML. I prefer to code everything in C#, but I think that I am doing things wrong. ... you use C#? What is your experience? 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 - A TwoWay or OneWayToSource binding cannot work on the read-only property

I've a read only property I need to display in a textbox, and getting this error at runtime. I've set IsEnabled ... by adding a dummy setter... 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 pass a constant value for 1 binding in multi-binding?

I have a multi-binding like <TextBlock> <TextBlock.Text> <MultiBinding Converter="{StaticResource myConverter}"> < ... do that using XAML? 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 add a vertical Separator?

I want to add a vertical Separator to a Grid, but i can only find the horizontal. Isn't there a ... </Separator.RenderTransform> </Separator> 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 - MVC / MVP / MVVM What the Heck?

I recently worked on a .Net WPF project to build a retail point of sale system where I used the MVP pattern ... I'd very much appreciate it. 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 and collections of VMs

A common senario: A model with a collection of item models. E.g a House with a collection of People. How ... double update for Adds and Removes? 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 - Creating SolidColorBrush from hex color value

I want to create SolidColorBrush from Hex value such as #ffaacc. How can I do this? On MSDN, I got : ... But then how MSDN example works? 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 - Window Height="Auto" not working as expected

What I am trying to do is show a window, that does not explicitly have a height/width, (both values omitted or ... would be tricky (and ugly). 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 Symbols in a ListBox

I want to use some items in Segoe MDL2 Assets as icons for a menu driven off a collection. I have my ... s unrelated to that) Many 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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718 views

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wpf - Best practice of when to load data into a ListBox

WPF/VC++ (C++/cx) - Visual Studio 2013 So I have a ListBox thats populated with a UserControl I ... or the general programming community. 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 - Multiple Image in Canvas ItemsControl

I want to show multiple image on a canvas. I need to position them differently in the canvas. I made a class for ... like a charm for now :-) See Question&Answers more detail:os...

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

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792 views

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wpf - Add customized buttons to the existing MessageBox

How can I add custom buttons to the existing MessageBox in WPF? Apart from the usual Ok and Cancel buttons, I ... and also handle their events. 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 stretch checkbox item the full width of the combobox

I have a multiply combobox with checkbox items <ComboBox x:Name="cmb" IsEditable="True" IsReadOnly="True" ... how to override this behavior? 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 - Equivalent of PostMessage in C# to synchronize with the main thread with MVVM?

I must be retarded with searching, because here's another seemingly common problem that I haven't been able to ... sort of thing already... 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 change character spacing in XAML in a textbox?

How do I change the character spacing in a WPF application within a textblock. Also known as kerning or tracking for characters. 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 - ItemsControl ItemTemplate Binding

In WPF4.0, I have a class that contains other class types as properties (combining multiple data types ... .ItemTemplate> </ItemsControl> See Question&Answers more detail:os...

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

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952 views

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wpf - Passing data between C# forms

I am struggling to pass data between two forms (all I want to do is have a textbox in Form1, and ... convertible to 'System.IDisposable'. See Question&Answers more detail:os...

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

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692 views

1 answer

wpf - My ListView or ListBox control size doesn't shrink when there is a complex data template which hides display elements based on triggers?

I have a ListView element with a DataTemplate for each ListViewItem defined as follows. When run, the ListView's ... get the desired behavior? See Question&Answers more detail:os...

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

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1.5k views

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wpf - How to get Touchscreen to use Mouse Events instead of Touch Events in C# app

I have developed a C# app that overrides the PreviewMouseUp, PreviewMouseMove, and PreviewMouseDown events in some ... happening? Thanks, brian See Question&Answers more detail:os...

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

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815 views

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wpf - Finding the true memory footprint of a Windows application

I've run into a few OutOfMemoryExceptions with my C#/WPF application and I'm running into some confusing data while ... Link to data table here. See Question&Answers more detail:os...

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

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887 views

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wpf - commandbinding not working?

I working on a multi-tab application (For Ex: Multi-Tab Text Editor), where each tabitem has its own ... TextEditor are created at run time See Question&Answers more detail:os...

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

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886 views

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wpf - Non-static dependency properties

Is there any reason why I could (or should) not declare dependency properties as non-static? I need to ... it relies on string identifiers. See Question&Answers more detail:os...

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

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926 views

1 answer

wpf - Find control in the visual tree

I am trying to get my SelectedRadioButton from a DataTemplate. Wpf Inspector showed the Visual Tree: and in ... I use these visualtreehelpers. See Question&Answers more detail:os...

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

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1.4k views

1 answer

wpf - Window.InputBindings with a bound collection

I can't find anything that looks like this online. I am looking for a way to create a collection of ... possible? Where would I start? 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 - PRISM - Reuse of Views With Child Regions - Can It Be Done?

I'm a bit of a PRISM newbie, but I've read the help documentation and can't seem to find out how to ... Or have I mis-read the documentation? See Question&Answers more detail:os...

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

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