Recent questions tagged WPF

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wpf - adding a ListBoxItem in a ListBox in C#?

I know that: String test = "test"; ListBox.Items.Add(test); or String test = "test"; int index ... opposite to convert String to ListBoxItem See Question&Answers more detail:os...

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

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2.3k views

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wpf - Change the background color of a toggle button when the toggle button is checked

I want to change the background color of a toggle button when the toggle button is checked and vice versa. How can I achieve 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 - StringFormat is ignored

This is my binding (shortened, Command-Property is also bound) <MenuItem Header="Key" CommandParameter="{Binding ... receive is: Short.Plural 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 Add a Tooltip To a DataGridTextColumn

I'm using WPFtoolkit DataGrid ,I have to wrap text in a DataGridTextColumn or I have to add a ToolTip ... Expecting your valuable suggestions... 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 - Context Menu Binding to Parent Window's Datacontext

I have a TreeListControl that binds to a collection in my VM. I also want to define the context menu inside the ... { HeaderText = "Changed"; } 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 does this Xaml Path crash silverlight?

Quick easy points for anyone who knows the answer: The following Xaml path works fine in WPF but crashes in ... triangle like so: Any ideas? See Question&Answers more detail:os...

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

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840 views

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wpf - Why Would a Dependency-Property Implementation Crash My Application When I Provide a Default Value?

Why would a dependency-property implementation crash my application when I provide a default value? This segment of ... advice would be awesome! 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 dependency property to control

I am using the Infragistics XamDateTimeEditor control and I want to add a dependency property to it to allow the ... sure how that is done. 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 - IE 11 WebGL performance slow when using WebBrowser control

I'm trying to embed Cesium in a WebBrowser control inside of a WinForms or WPF application (using IE 11) ... help would be greatly appreciated. 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 get or compute actual width of ListBox without Vertical Scrollbar if visible

I wonder how to get or compute actual width of ListBox without Vertical Scrollbar if visible. What I want to do ... any good way to solve 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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1.2k views

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wpf - DragMove() and Maximize

I have a problem with my custom window (AllowTransparency, WindowStyle=None) in WPF. DragMove() method works ... working Aero Snap features? 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 - PasswordBox Binding

I'm just getting started with M-V-VM and WPF and having issues understanding some binding issues. I have a ... pass along to an AccountService. 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 - ListBoxItem selection on TextBox focus

I have a ListBox showing items using the following DataTemplate: <DataTemplate x:Key="PersonTemplate" DataType="{x ... selected as well? 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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1.2k views

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wpf - Handle DataGridHyperlinkColumn Click Event

How to handle click event of DataGridHyperlinkColumn programatically through code(in .xaml.cs file). See Question&Answers more detail:os...

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

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1.1k views

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wpf - BitmapSource.CopyPixels -what's a good value for stride?

I'm trying to get the pixel data from a WPF BitmapSource object. As I understand, this can be ... stride value for any BitmapSource? See Question&Answers more detail:os...

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

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872 views

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wpf - windows 8 popup location

While porting a WPF application over to a Windows 8 instance (x64) runing under VMware, I found that all of ... inside Windows 7 and Windows 8? 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 - using a trigger to set a textblock foreground on mouseover

I am trying to set block so its foreground color will change every time the mouse cursor goes over it, and this ... "30", the event does occur. 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 handle exception in Value converter so that custom error message can be displayed

I have a textbox that is bound to a class with a property of type Timespan, and have written a value ... custom error message in the UI See Question&Answers more detail:os...

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

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823 views

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wpf - What is application's site of origin and when to use it

What is application's site of origin When to use it How is the build action of a resource file associated with ... and pack://siteoforigin:,,, 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 - binding a command inside a listbox item to a property on the viewmodel parent

I've been working on this for about an hour and looked at all related SO questions. My problem is very ... toolkit which does the magic. 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 - Defining InputBindings within a Style

I'm creating a WPF app using the MVVM design pattern, and I'm trying to extend the TabItem ... InputBindingsProperty, inputBindings); } } See Question&Answers more detail:os...

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

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931 views

1 answer

wpf - xaml what is "local:"?

What is local: in XAML, and what parameters in a C# class can be called local: ? In some code I am ... :AskLocal". What does this mean? See Question&Answers more detail:os...

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

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935 views

1 answer

wpf controls - What is the difference between HorizontalAlignment and HorizontalContentAlignment in WPF?

What is the difference between: HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch" in a textbox in WPF? Sample ... " ></TextBox> See Question&Answers more detail:os...

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

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941 views

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wpf - How to bind to a StaticResource with a Converter?

I want to use a Converter to change the value of a StaticResource before assigning it to a property ... Converter={StaticResource myConverter}}? See Question&Answers more detail:os...

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

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995 views

1 answer

wpf - Declaring Text Decorations such as Underline, Strikethrough in a Style

How do I include text decorations such as Underline, Strikethrough etc in a Style definition: <Style x:Key=" ... ) and all is 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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1.1k views

1 answer

wpf - XAML - The property 'Content' is set more than once

Very new to WPF and XAML. I can't get my head around why I can't place a WPF control where I would like in ... ="2"> Items </StatusBar> </Grid> 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

1 answer

wpf - Datagrid Set focus on newly added row

I have a datagrid bound to an observable collection. When the user press the "add button" it adds a new ... pattern. Any ideas or suggestions? See Question&Answers more detail:os...

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

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931 views

1 answer

wpf - RenderTargetBitmap + Resource'd VisualBrush = incomplete image

I've found a new twist on the "Visual to RenderTargetBitmap" question! I'm rendering previews of WPF stuff for ... Anybody have a fix 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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