Ellen Joe.♡ Posts - Answer Overflow

Ellen Joe.♡

•Created by Ellen Joe.♡ on 8/21/2024 in #help

✅ How to get data out of a custom control?

Currently, I'm doing a custom user control for a password box with a label showcasing what to put in there. Right now, this is the content of my user control:

<Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="100"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <Label Content="{Binding LabelText, ElementName=root}" Height="24" Margin="0 0 0 5" Grid.Column="0"/>
        <PasswordBox Width="200" Height="24" Password="{Binding Password, ElementName=root}" Grid.Column="1"/>
    </Grid>

<Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="100"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <Label Content="{Binding LabelText, ElementName=root}" Height="24" Margin="0 0 0 5" Grid.Column="0"/>
        <PasswordBox Width="200" Height="24" Password="{Binding Password, ElementName=root}" Grid.Column="1"/>
    </Grid>

And this is the .cs file:

using System.Windows;
using System.Windows.Controls;

namespace WoWSpect.Components;

public partial class PasswordBoxWithLabel : UserControl
{
    public static readonly DependencyProperty LabelTextProperty = DependencyProperty.Register(
        nameof(LabelTextProperty), typeof(string), typeof(PasswordBoxWithLabel), new PropertyMetadata(string.Empty));

    public static readonly DependencyProperty PasswordProperty = DependencyProperty.Register(
        nameof(Password), typeof(string), typeof(PasswordBoxWithLabel), new PropertyMetadata(string.Empty));

    public string Password
    {
        get { return (string)GetValue(PasswordProperty); }
        set { SetValue(PasswordProperty, value); }
    }
    
    public string LabelText
    {
        get { return (string)GetValue(LabelTextProperty); }
        set { SetValue(LabelTextProperty, value); }
    }
    
    public PasswordBoxWithLabel()
    {
        InitializeComponent();
    }
}

using System.Windows;
using System.Windows.Controls;

namespace WoWSpect.Components;

public partial class PasswordBoxWithLabel : UserControl
{
    public static readonly DependencyProperty LabelTextProperty = DependencyProperty.Register(
        nameof(LabelTextProperty), typeof(string), typeof(PasswordBoxWithLabel), new PropertyMetadata(string.Empty));

    public static readonly DependencyProperty PasswordProperty = DependencyProperty.Register(
        nameof(Password), typeof(string), typeof(PasswordBoxWithLabel), new PropertyMetadata(string.Empty));

    public string Password
    {
        get { return (string)GetValue(PasswordProperty); }
        set { SetValue(PasswordProperty, value); }
    }
    
    public string LabelText
    {
        get { return (string)GetValue(LabelTextProperty); }
        set { SetValue(LabelTextProperty, value); }
    }
    
    public PasswordBoxWithLabel()
    {
        InitializeComponent();
    }
}

But as soon as I use it somewhere to display something, I get this error:

System.Windows.Markup.XamlParseException: A 'Binding' cannot be set on the 'Password' property of type 'PasswordBox'. A 'Binding' can only be set on a DependencyProperty of a DependencyObject.

How can I fix it? I need to get the password out of the password box from my user control, but since I cannot use a property apparently, I don't know another way to do it.

100 replies

CC#

•Created by Ellen Joe.♡ on 8/20/2024 in #help

Specific radio button style in WPF

2 replies

CC#

•Created by Ellen Joe.♡ on 7/16/2024 in #help

Bevel effect in Style Template

5 replies

CC#

•Created by Ellen Joe.♡ on 5/31/2024 in #help

Cannot find method although defined and used?

I'm currently creating a WPF project and have this static class:

namespace KupoFinder.AppConfigHandler;

public static class AppConfigHandler
{
    private const string ConfigFileName = "KupoFinder.settings.json";

    public static void CheckConfigFile(){}

    // ...
}

namespace KupoFinder.AppConfigHandler;

public static class AppConfigHandler
{
    private const string ConfigFileName = "KupoFinder.settings.json";

    public static void CheckConfigFile(){}

    // ...
}

And I use it in my ViewModel like this:

using CommunityToolkit.Mvvm.ComponentModel;
using KupoFinder.AppConfigHandler;

namespace KupoFinder.MVVM;

public partial class MainWindowVM : ObservableObject
{
    public MainWindowVM()
    {
        AppConfigHandler.CheckConfigFile();
    }
}

using CommunityToolkit.Mvvm.ComponentModel;
using KupoFinder.AppConfigHandler;

namespace KupoFinder.MVVM;

public partial class MainWindowVM : ObservableObject
{
    public MainWindowVM()
    {
        AppConfigHandler.CheckConfigFile();
    }
}

But I get the error: Cannot resolve symbol 'CheckConfigFile' It should find it tho cuz my VM has a dependency on it. Does anyone see the error?

3 replies

Gaming

Programming