如何从代码背后使用WPF XAML中的属性

Question

I just want to get my variable from the xaml.cs to use it into my xaml: Here my xaml.cs:

using System;
using System.Globalization;

namespace Calendar
{
    public partial class MainWindow : Window
    {
        private static CultureInfo french = 
            CultureInfo.GetCultureInfo("fr-FR");

        private static string nowStr =
            DateTime.Now.ToString(French);

        public static string NowStr { get => nowStr; set => nowStr = value; }
        public static CultureInfo French { get => french; set => french = value; }
        public MainWindow()
        {   
            InitializeComponent();

        }
    }
}

And here my xaml:

<Window x:Class="Calendar.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:Calendar"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Grid RenderTransformOrigin="0.425,0.522">
        <TextBlock Text="{Binding Path=MainWindow.nowStr}"></TextBlock>
    </Grid>
</Window>

So, I want to get my "nowStr" to display it in my MainWindow, but I don't really understand how it works, here I am using the binding but nothing happen, I used the local: and still nothing. I am a little confused because I search answers in stack but I tryed the responses and nothing worked. If you can explain me how I can get my nowStr to my xaml it will be graceful.

Answer 1

In the constructor of you .cs file add DataContext = this; Now in your TextBlock use Text="{Binding NowStr}"

And implement INotifyPropertyChanged on your MainWindow class and in the setter of your property cal notify

And why are you creating static properties?