All Questions
15,873
questions
0
votes
0
answers
13
views
Validation gets lost on tab change
I am using a tab control to group different input fields like text boxes. I am validating the user input of those text boxes via IDataErrorInfo in my view model.
Now, when the user input is not valid ...
- 30
-1
votes
1
answer
33
views
How does the `CalculateButton_Click` method validate and update `HourlyEmployee` and `CommissionEmployee` properties, and handle input errors? [closed]
I need to understand how the CalculateButton_Click method in my WPF application handles input validation and updates for HourlyEmployee and CommissionEmployee objects. Specifically, how does it check ...
-1
votes
0
answers
26
views
My WPF app is not displaying text correctly in some datagrids [closed]
This is the UI on a windows 10 machine
This is the UI on my IDE and other PCs
As you can see the text is missing and the context menu isn't openning
I tried reinstalling graphics drivers, updating ....
-3
votes
1
answer
63
views
How to implement multiple buttons with same behaviors? [I need advice] [closed]
I am learning WPF and MVVM, my goal is to create a serial communication using SerialPort and update the UI to inform user whats happening.
So program is communicating with cards(max 3) and each card ...
- 7
0
votes
1
answer
45
views
WPF Dynamically add columns using a pre-defined DataTemplate
I have a DataTemplate defined in the resources area of my custom WPF UserControl which renders a bunch of colored squares for a bunch of "flags". The goal is to dynamically add columns to ...
- 1,909
0
votes
0
answers
24
views
Wpf frame navigation automatically makes the path smaller
public void frameNavigation(string url)
{
string path = "";
if (url == "startup")
{
path = "Pages/Optimizations/...
0
votes
2
answers
74
views
How to copy and paste in wpf richtextbox containing runs and inlineUICOntainer?
I have created a RichTextBox in wpf containing the below content
<RichTextBox x:Name="RichTextBox"
IsDocumentEnabled="True"
AutoWordSelection="...
0
votes
2
answers
47
views
Measuring WPF TextBox gives zero size
I'm trying to calculate the height of an WPF textbox.
The code below does work for TextBlock, but returns a empty size for TextBox.
public partial class MainWindow : Window
{
public MainWindow()
...
- 952
-2
votes
1
answer
87
views
Can't resolve System.Windows.Control.Image from being created instead of System.Drawing.Image
I'm working on moving a C# program into a WPF application and in order to export files from records I need to use the following code:
// Construct _imgfiles from the records
string _imgfile = ...
- 1
0
votes
0
answers
24
views
WPF Frame Navigation: Preventing Duplicate Instances in Navigation History
In my WPF application, I'm using a Frame for navigation between pages. The issue I'm encountering is that whenever I navigate to a page that is already open, a new instance of that page is added to ...
0
votes
1
answer
84
views
How does ObservableCollection/INotifyPropertyChange work when object is changed
I have a situation where in one view model some properties on an object are updated. In another view model, I subscribe to a message and then update a collection with this new object, e.g.:
...
- 978
0
votes
1
answer
63
views
WPF program sometimes has touch failure, but the mouse can click
WPF program uses a touch-screen all-in-one machine, so you can click on the screen or click with the mouse. When you start the program, everything is normal. After using it for a while, there is a ...
-1
votes
0
answers
96
views
The checkboxes that I created in listbox don't exist in the C# code [closed]
I created multiple checkboxes inside a listbox, but when I try to use these checkboxes in the C# code, it can't find them, but a checkbox outside the listbox is found normally.
This is the XAML of the ...
0
votes
0
answers
26
views
OxyPlot graph not always displayed in WPF app
I have some buttons in my app, which are redirecting to view with OxyPlot graph.
After updating OxyPlot version, graph doesn't appear. Only after reopening the view it becomes visible.
However, this ...
1
vote
0
answers
44
views
How can I apply non-affine transformations to 2D framework elements in WPF?
Historically, WPF is not able to support 2D non-affine transformations out of the box. Typical solutions require setting up a 3D scene. Of course, I'm trying to avoid creating a 3D scene in my ...
- 79