如何从我自己的.cs文件访问WPF MainWindow控件 [英] How to access WPF MainWindow Controls from my own .cs file

问题描述

我是NOVICE，并且在看来应该是一件非常简单的任务上非常挣扎。如何从另一个CS文件修改 MainWindow TextBlock 的属性。精确的代码解决方案将非常有帮助。

I am a NOVICE and am very much struggling with what seems should be a very simple task. How do I modify a property of a MainWindow TextBlock, from another cs file. An exact code solution would be extremely helpful.

下面是精简的代码。我对静态类的使用会给我带来额外的问题吗？

Below is the stripped down code. Is my use of static class causing me extra issues?

在文件中：MainWindow.xaml

In File: MainWindow.xaml

<Window x:Class="TestApp1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <TextBlock x:Name="TextBlock1" HorizontalAlignment="Left" Margin="107,71,0,0" TextWrapping="Wrap" Text="TextBlock" VerticalAlignment="Top"/>
    </Grid>
</Window>

文件内：MainWindow.xaml.cs

In File: MainWindow.xaml.cs

namespace TestApp1  
{  
public partial class MainWindow : Window  
    {  
        public MainWindow()  
        {  
            InitializeComponent();  
            TextBlock1.Text = "Setting Text from MainWindow";  
            MyProgram.myProgramStart();  
        }  
    }  
}  

在文件中：CodeFile1.cs

In File: CodeFile1.cs

namespace TestApp1
{
    public static class MyProgram
    {
        public static void myProgramStart()
        {
            // ... blah blah blah

            // I want to do something like follows, but won't compile
            MainWindow.TextBlock1.Text = "Setting Text from My Program";
        }
    }
}  

推荐答案

因为没有人真正回答过这个问题，所以我将告诉您如何实现您想要的目标，但是请听听那些在实际应用程序中将使用MVVM的发帖人。但是有时您需要做的事情就是这样，您需要的代码是：

Because nobody else has actually answered the question I'm going to tell you how to achieve what you want, but do listen to the posters who said that in a real application you would use MVVM. However there are times when you need to do what you ask so the code you need is:

((MainWindow)System.Windows.Application.Current.MainWindow).TextBlock1.Text = "Setting Text from My Program";

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