Recent questions tagged wpf

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wpf - How can i serialize xaml "Brush"?

How can or what is best method to serialize System.Windows.Media.Brush ? See Question&Answers more detail:os...

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

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785 views

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wpf controls - In WPF can I attach the same click handler to multiple buttons at once like I can in Javascript/Jquery?

I have multiple buttons instead of doing this.button1.Click += new System.EventHandler(this.button_Click); this.button2. ... like that in WPF ? 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 set Regular Expression on TextBox?

How can I set a regular expression on WPF TextBox? I want the textbox to accept input in some predefined format. Is it possible? See Question&Answers more detail:os...

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

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938 views

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wpf - Fill up DataGrid with empty rows

I have a DataGrid bound to a DataTable. I want the DataGrid to always have at least ten (empty) rows, also if ... /built-in way to achieve 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 - C# TWAIN interaction

I'm trying to set up a C# application which uses TWAIN example from code project This works fine except ... TWAIN librarieswrappers? Thank you. See Question&Answers more detail:os...

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

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817 views

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wpf - ClipToBounds property in WinRT

I'm trying to find the equivalent of ClipToBounds in Windows Runtime. If it doesn't exists is there a way to recreate 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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628 views

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wpf - Why "Setting event handlers inside a Setter.Value structure" gives compilation error?

I faced the problem exactly as described in Setting event handlers inside a Setter.Value structure. But I want ... like I missed some concept. See Question&Answers more detail:os...

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

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807 views

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wpf controls - WPF - Get size of UIElement in Memory?

Is there a way to get the size of a UIElement that resides in memory and has not yet been rendered? I ... change the FontSize of the 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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875 views

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wpf - ShowDialog() behind the parent window

I am using ShowDialog() with WindowStyle = WindowStyle.SingleBorderWindow; to open a modal window in my WPF (MVVM ... window. 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 highlight selected item in ItemsControl?

I have the following XAML. How can i highlight the selected item in the ItemsControl ? I can override the selected ... > </ScrollViewer> </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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1.0k views

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wpf - How can I bind an ObservableCollection to TextBoxes in a DataTemplate?

I am trying to successfully TwoWay bind an ObservableCollection to TextBoxes in a DataTemplate. I can get the data ... this the correct 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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878 views

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wpf - TextBox.TextChanged & ICommandSource

I am following the M-V-VM pattern for my WPF UI. I would like to hook up a command to the ... TextChanged event to my ViewModel class? See Question&Answers more detail:os...

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

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821 views

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wpf - How to access Parent's DataContext in Windows 8 store apps

This is a common situation in XAML based apps (WPF/Silverlight/WinRT). WPF related link -> WPF Databinding ... suitable mostly in 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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844 views

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wpf - Style within DataTemplate is only being applied to the last item in ItemsControl?

In the XAML below, I have an ItemsControl that has three DataObjects. I use a DataTemplate to display DataObjects ... </ItemsControl> </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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753 views

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wpf - Multiple windows, but also multiple items on the task bar

I'm setting up a program that has three different windows. I'm just using .. Window1 win1 = new Window1(); ... inside of another box. Thank you See Question&Answers more detail:os...

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

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709 views

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wpf - Binding to time-dependent properties

Some time ago i wrote a small widget-like application which was supposed to keep track of tasks, each task ... was a very interesting question) See Question&Answers more detail:os...

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

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977 views

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wpf - Is it possible in c# to show, hide, and manipulate the Windows 8 on-screen keyboard?

I am making a WPF application that is to be used on a kiosk with no hardware keyboard. Currently we are ... version using c#. Thanks! David See Question&Answers more detail:os...

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

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934 views

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wpf - C# Update UI In Task

I am new to C# Task and threading. I have a code like below:- public void UpdateSales(object sender, ... handler from third party library. See Question&Answers more detail:os...

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

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843 views

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wpf - ContextMenu.PlacementTarget is not getting set, no idea why

<DataTemplate x:Key="_ItemTemplateA"> <Grid Tag="{Binding Path=DataContext.Command, RelativeSource={RelativeSource FindAncestor ... as not set. See Question&Answers more detail:os...

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

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760 views

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wpf - Add a Image in the DataGridTemplateColumn

BitmapImage im = new BitmapImage(); string path1 = @"C:abc.png"; im.UriSource=new Uri(path1); ... add Image in the column?? See Question&Answers more detail:os...

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

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660 views

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wpf - MVVM and commands that show more GUI

I like the MVVM idea of a RelayCommand that's exposed by the ViewModel. That's nice and elegant, for operations ... that I'm totally missing? See Question&Answers more detail:os...

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

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643 views

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wpf - Entity Framework 4.0 Databinding with sorting not working

I want to do something that I thought would be very simple. I want to bind a generated Entity Framework ... have designed around. 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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708 views

1 answer

wpf - Increase StrokeThickness but maintain dimensions of Path

I have a Path that normally has a StrokeThickness of 1. Under certain circumstances, it needs to have a ... Is there an easier 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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873 views

1 answer

wpf - Slider ScrollViewer in a touch interface not working properly

In WPF I've got the following XAML: <ScrollViewer Canvas.Left="2266" Canvas.Top="428" Height="378" Name=" ... Is there any workaround 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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1.0k views

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wpf - Binding a datacontext string property to a StaticResource key

I have an List values with a ResourceKey and a Caption, these values are both strings. The Resource is the ... set the source property. 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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824 views

1 answer

wpf - How to set RichTextBox Font for the next text to be written?

I need to set the font family for the next text to be written in a RichTextBox. I tried setting that with... ... the next -not yet typed- 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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809 views

1 answer

wpf - Should a ViewModel in MVVM reference the View?

In the MVVM (Model-View-ViewModel) pattern should the ViewModel reference the view. I would think that it should ... of sense to somebody :) See Question&Answers more detail:os...

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

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954 views

1 answer

wpf - Explicitly refresh DataTemplate from a DataTemplateSelector?

I set up a ContentControl.DataTemplateSelector to my desired one. I want that according to a command or whatever, ... either xaml or code. Thank See Question&Answers more detail:os...

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

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