Recent questions tagged WPF

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wpf - Binding properties through DataTemplates and ContentControl

I liked this answer, and it almost fit me. But, how can I achieve this if my DataTemplate is in a external ... How can I bind these properties? 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 - Error when using StaticResourceExtension inside Style.Resources

I am using DynamicResource in a template, and StaticResourceExtensions as resource inside each style using that template ... Resources> </Style> 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 - image button template?

I want Image button with two state(normal , mouse over). that button must change image with Mouse Over event trigger ... but i don't know how? 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 Setting Property but UI not updating. Can I debug within referenced project/control?

I have a custom control with bindings like below <DataTemplate DataType="{x:Type vm:EditorTabViewModel}"> <me: ... the editor does not update 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 Storyboard value wouldn't get from a resource or binding?

I have construction below and it works: <Storyboard x:Key="GrowOnStart"> <DoubleAnimationUsingKeyFrames Storyboard. ... set to 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# - how to add images from folder to array and display them in listview?

string[] list = Directory.GetFiles(@"Resources/", "*.jpg"); lvDataBinding.Items.Add(list[0]); So the folder ... new windows. 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 use Prism within an ElementHost

I'm new to Prism and I am attempting to host a Prisim control within an ElementHost. I seem to be missing ... . Am I missing something basic? 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 - RowVirtualization cause incorrect background color for rows

I have a WPF application and there is a Datagrid in some pages. This datagrid needs to load 5000 rows at once ... at the same time? 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 - c# and date picker, how to change format?

I have a datepicker in my C# 4.0 (WPF) application and I would like to change the format of the date that ... /null or not? Thanks. Daimroc. 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 - Bind to DataContext Property inside inline Array Declaration

We have some XAML which may seem odd but apparently is needed for defining a couple of buttons inside a ... be much appreciated. Thanks Paul 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 - get clicked button content from button styled listbox binded to xml

Hi I have a listbox binded to a xml file, and each item I gave them a button data template so I can ... the solution is just one line code. 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 - Pause the Updates to DataGrid of bound ObservableCollection<T>

Is there a way to pause the NotifyCollectionChanged event of an ObservableCollection? I thought something like the ... to control this aspect? 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 prevent input controls from stealing the space character from the TextCompositionManager?

Related (but not a dupe!) to this question: Help with the WPF TextCompositionManager events When using the ... for 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 - Initial Focus and Select All behavior

I have a user control that is nested inside a window that is acting as a shell for a dialog display. I ... simple and common chore though... 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 - async load BitmapImage in C#

I'm trying to load a image asynchronously. MainWindow code public partial class MainWindow : Window { private Data ... What am I doing 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 - Why TabControl.SelectedContent != (TabControl.SelectedItem as TabItem).Content?

The following sample shouldn't beep (in my opinion) but it does. Why? Does that mean the SelectedContent property ... Content) Console.Beep(); } 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 - Activate horizontal scrolling with mouse on ListView

I've got a custom horizontal ListView with custom ScrollViewer inside it's template (created with Blend). I want it to ... . How can I do 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 - GridView DoubleClick

I have a GridView where I want to detect a doubleclick event on the items in the list, i do it as follows ... any solution for that with PRISM? 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 - Validate row when underlying data changes

Imagine a DataGrid with its ItemsSource set to an ObservableCollection. This collection provides a view model for each ... can be found 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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wpf - round robin image rotation what is the best way to do in opencv

I want to do a round robin image rotation as shown below. The x vertical line from the start of image ... pixel manipulation is not that fast. 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

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wpf - pass contextmenu parent as CommandParameter

i have a HierarchicalDataTemplate for a TreeViewItem, in the template i have a contextmenu and i want to pass ... > thanks for the 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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1.2k views

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wpf - Why does ItemContainerGenerator return null?

I have a ListBox, and I need to set its ControlTemplate to a Virtualizing WrapPanel which is a class that ... .AddInternalChild(element); } } 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 - Draw all the Non-Client area in C#

I am looking to draw my non-client area in C#, for example, instead a rectangle as a form, i want an ... but i haven't understand it 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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wpf - Hide Datagrid Column based on its Property name

I have a DataGrid defined as follows : <DataGrid Name="dtMydatagrid" Margin="10,10,10,10" RowHeight="20 ... solution? 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 - Fit XAML path into view

I have the following path. The data is from some data file: <Path StrokeThickness="5" Stroke="Black" Fill= ... nicely centered on the screen? 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 - Periodic execution of particular code in c#

I've a set of queries which I want to execute only once in day, I know this is possible using TaskScheduler ... give a example code 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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1.3k views

1 answer

wpf - Absolute z-order (across several DataTemplates)

Ive a ListBox with a Canvas ItemsPanel that displays 2 different types of objects: NodeVMs and LinkLineVMs (using a ... hidden BELOW link [-32] 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 - Mahapps metro: How to add an extra button to ShowInputAsync() dialog

In my WPF app I am using MahApps Metro framework. For a test, I am using ShowInputAsync(...) dialog (as ... } } Current display of the dialog See Question&Answers more detail:os...

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

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