WPF:事件委托对于不同界面间通信的应用

界面1内设定点击事件，生成Path用事件传出
public partial class TemplateWindow : Window

{

internal delegate void ConfirmButtonClick(string  Path);

/// <summary>

/// 点击确定按钮事件

/// </summary>

internal event ConfirmButtonClick OnConfirmButtonClick;  
        
        private void ConfirmButton_Click(object sender, RoutedEventArgs e)

{

string Path = “C://User//Path”;

if (null != this.OnConfirmButtonClick)

{

this.OnConfirmButtonClick(Path);

}

this.Close();

}

}

界面二通过事件获取界面1的Path

public partial class  User : UserControl

{
         private void ShowWindow_Click(object sender, RoutedEventArgs e)

{

TemplateWindow  window = new TemplateWindow ();

window.Show();

window.OnConfirmButtonClick += (Path) =>

{

Console.Writeline(Path);

};

}

}

原文地址：https://www.cnblogs.com/kid526940065/p/8516077.html