Windows Presentation Foundation
A part of the .NET Framework that provides a unified programming model for building line-of-business desktop applications on Windows.
2,676 questions
1 answer
Screen.PrimaryScreen.WorkingArea is not giving full screen?
I am trying to make an Windows form app that will auto scale to full screen. The problem is that I do not want to make it full screen if it is less than 1680x1050. So I tried to use Screen.PrimaryScreen.WorkingArea.Width / Height to get the resolution. …
asked 2020-06-17T08:42:17.137+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 95%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESH%3C/text%3E%3C/svg%3E)
Sean Huang
1
Reputation point
commented 2020-06-24T12:18:51.097+00:00
Sean Huang
1
Reputation point
2 answers
One of the answers was accepted by the question author.
wpf ,datagrid row has inner datagrid,select cell problem
One datagrid ,each row has one detail datagrid, i want to select cell outter datagrid and inner datagrid same time,but it's failed.when select cell in inner datagrid,the outer datagird cell selected will unselect,how to select cell outter datagrid and…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(12.8, 6%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
1 answer
wpf Viewport3d.GeometryModel3D.LinesCollec
hi. I want to add an ObservableCollection of Lines and ObservableCollection of arcsegment to Viewport3d. the goal is to draw arcs based on the Lines so whenever line.x/line.y updated it automatically updates the arcs, however my question is not…
asked 2020-06-23T07:56:26.983+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(297.6, 56.00000000000001%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EE%3C/text%3E%3C/svg%3E)
essamce
621
Reputation points
answered 2020-06-23T13:01:09.38+00:00
Peter Fleischer (former MVP)
19,231
Reputation points
2 answers
One of the answers was accepted by the question author.
Flowlayoutpanel control in a child form can not be modified
when the father form has a flowlayoutpanel control, child form can not modify its any attribute though the modifiers of flowlayoutpanel is public. But other controls of father form like button can be modified in child form.
asked 2020-06-23T05:10:29.6+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(147.20000000000002, 84%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EFL%3C/text%3E%3C/svg%3E)
flavous lei
21
Reputation points
accepted 2020-06-23T08:07:21.993+00:00
flavous lei
21
Reputation points
2 answers
One of the answers was accepted by the question author.
How to create a grid-line document in a WPF Application
Does anybody have a link to a WPF example application that creates a document page with grid lines? Please see below:
2 answers
One of the answers was accepted by the question author.
wpfCore3.1 binding mouse event to mvvm
is there a way to bind xaml control mouse event to mouse event handler in viewmodel? i'm using wpf core3.1 MS VS2019.
2 answers
What is the correct MSAL package for a WPF core 3.1 desktop app?
I have a WPF desktop app built on the .NET Core 3.1 framework. I would like to add the ability to acquire a token and call Microsoft Graph API from this desktop app. Microsoft.Identity.Client does not list .NET Core 3.1 as a dependency. Is this the…
asked 2020-06-20T15:36:44.697+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(265.6, 43%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
Michael
76
Reputation points
answered 2020-06-22T06:08:48.9+00:00
DaisyTian-1203
11,616
Reputation points
1 answer
One of the answers was accepted by the question author.
WPF samples - how to use the example projects included?
I downloaded the samples from GitHub but apart from getting a Form with some |Layout and Control details, I can notfind any way to try any of the examples. How to load/run any of the examples in the Solution? The only way I can figurte out is to…
asked 2020-06-20T19:19:59.417+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Anonymous
commented 2020-06-21T11:40:14.937+00:00
Anonymous
1 answer
One of the answers was accepted by the question author.
cannot set multiple base to custom control error
i'm trying to build a wpf custom control library, want to create some controls that inherited from wpf controls (textBox, label, ...) and i wanted them all to be inherted from a base class and wpf control, here is one of them: public class…
1 answer
One of the answers was accepted by the question author.
drag the three endpoints of the two lines
I use the mouse to draw two lines, how to drag the three endpoints of the two lines,Similar to the effect below(it is a usercontrol,i want to line or path,not a usercontrol),I want to have two lines, and I can drag their common endpoint
asked 2020-06-17T05:31:07.617+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(140.8, 21%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EQ%3C/text%3E%3C/svg%3E)
qwecskcnjff1
41
Reputation points
accepted 2020-06-21T05:18:52.353+00:00
qwecskcnjff1
41
Reputation points
2 answers
One of the answers was accepted by the question author.
Add new Views and Viewmodels in Caliburn.Micro?
I would like to use Caliburn.Micro in my new MVVM projects. After reading the documentation, I understood that Caliburn.Micro takes care of the connection between views and view models on its own (if of course the naming convention is followed). For…
asked 2020-06-08T19:25:09.04+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(182.40000000000003, 6%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPC%3C/text%3E%3C/svg%3E)
perfect code
271
Reputation points
accepted 2020-06-20T17:57:43.953+00:00
perfect code
271
Reputation points
2 answers
One of the answers was accepted by the question author.
WPF DataGridCheckBoxColumn Control question
Hello, I need modify DataGridCheckBoxColumn Control inside checkbox size, but i don't find a way to modify it, Who can tell me ? Thanks
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 91%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3E9%3C/text%3E%3C/svg%3E)
1 answer
BLE 4.2 connection dropping packets while using external dongles
Hi, Running into a packet drop issue when trying to stream data from a medical device to a hp desktop (WPF app) commonly used in hospitals and clinics. The application is using BluetoothLEDevice PairAsync to pair with the device and the device requires…
asked 2020-06-16T19:34:19.027+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(268.8, 21%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EE%3C/text%3E%3C/svg%3E)
EbbeK
1
Reputation point
answered 2020-06-19T03:16:08.407+00:00
MSFT-RobinChen
1
Reputation point
1 answer
One of the answers was accepted by the question author.
WPF Treeview Binding
Hi Experts, I would like to populate WPF Treeview with Directory and subdirectories. For that I followed this https://social.msdn.microsoft.com/Forums/vstudio/en-US/bdc74177-0db3-4e9d-9a08-96406eb981a8/wpf-treeview-with-checkboxes?forum=wpf link. My…
asked 2020-06-17T21:54:43.123+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(214.4, 14.000000000000002%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAK%3C/text%3E%3C/svg%3E)
abhijeet khopade
21
Reputation points
accepted 2020-06-18T17:28:47.917+00:00
abhijeet khopade
21
Reputation points
1 answer
What is the correct package to create an HTTP client in a WPF Core3 desktop app?
I have a WPF desktop app using Microsoft.WnidowsDesktop.App.WPF and Microsoft.NETCore.App v3.1. I would like to add an HTTP client for simple GET/POST... What is the correct package to add an HTTP client so I can accomplish WPF-REST Web API…
asked 2020-06-18T11:50:13.437+00:00
Michael
76
Reputation points
commented 2020-06-18T16:44:07.76+00:00
Peter Fleischer (former MVP)
19,231
Reputation points
1 answer
How to speed up a WPF DataGrid bound to an ObservableCollection?
The application is WPF/MVVM. A DataGrid's ItemSource is bound to an ObservableCollection<LogItem> where LogItem is a plain class of 5 strings and one enumerated value, none of which support the INotifyPropertyChanged interface. The problem is that…
asked 2020-06-17T15:26:34.737+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(0, 9%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERH%3C/text%3E%3C/svg%3E)
Richard Haggard
6
Reputation points
answered 2020-06-18T06:01:23.957+00:00
Peter Fleischer (former MVP)
19,231
Reputation points
2 answers
One of the answers was accepted by the question author.
WPF: When is data binding applied?
Hallo, i stuck at a behaviour i can't explain nor find any help in the documentation or various forums. The following code is needed to explain my problem/ to ask my question. A simple WPF (VB.Net) app that has an combo box (BindingBox) that binds to…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(140.8, 28.999999999999996%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
1 answer
events in custom control in wpf
I've made this user control and it works well, I'm trying to covert it to a Custom Control, but I can't hook up my handler to those 3 events. any help will be appreciated. <Canvas x:Class="SMFU.UserControls.Public.MovableChildCanvas" …
asked 2020-06-11T16:58:09.337+00:00
essamce
621
Reputation points
commented 2020-06-16T07:29:58.127+00:00
DaisyTian-1203
11,616
Reputation points
3 answers
Clarify INotifyCollectionChanged
I have a TreeView bound to an ObservableCollection with a ViewModel. The TreeView includes folder-like elements that will have child items. Most times opening the app we won't need to view those child items so I'm not filling them in when the app opens,…
asked 2020-06-11T12:01:25.887+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(25.6, 57.99999999999999%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKK%3C/text%3E%3C/svg%3E)
Ken Krugh
116
Reputation points
commented 2020-06-16T05:20:16.797+00:00
Peter Fleischer (former MVP)
19,231
Reputation points
1 answer
Memory leak. Class with finalizer
Created a minimal reproducing application. Reproducing conditions: Visual Studio 2017 WPF application Launch the application under the debugger WPF window code (class with finalizer, very busy WPF main thread): code: using…
asked 2020-06-15T10:00:47.693+00:00
Igor Buchelnikov
1
Reputation point
commented 2020-06-15T14:17:58.28+00:00
Peter Fleischer (former MVP)
19,231
Reputation points