等到用户单击C#WPF [英] Wait till user click C# WPF

问题描述

我想要当用户单击Button时等待用户单击Window的程序，除非通过单击Window.然后如果获取了它，将处理下一行并显示Point.

I want when the user clicks the Button, the program to wait for the user to click on the Window and would not proceed to the next line of code unless a Point is acquired by clicking on the Window. and then if it is acquired the next line will be processed and the Point will be displayed.

<Window x:Class="WpfApp1.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"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <Button Content="Pick Point &amp; Display it!" HorizontalAlignment="Left" Margin="301,172,0,0" VerticalAlignment="Top" Width="168" Click="Button_Click" RenderTransformOrigin="1.479,2.177"/>

    </Grid>
</Window>


    private void Button_Click(object sender, RoutedEventArgs e)
    {
        var point = WaitTillUserClicks();

        MessageBox.Show(point.ToString());
    }

    private Point WaitTillUserClicks()
    {
        // Prompt the user for a mouse click and do not proceed unless he has clicked at least once on the Window
    }

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