WPF C＃输入框 [英] WPF C# InputBox

问题描述

我已经在网上的研究却发现没有关于它的解决方案，我想要什么或不清楚。

I've research online but found no solution to what I want or unclear about it.

我做的使用C＃WPF应用程序。我想弹出一个对话框，提示用户输入他/她的名字。从那以后，我将跟踪的名称，并使用该名称的一些数据保存到一个TXT文件。

I am doing a WPF application using C#. I want to pop out a dialog box to prompt user to enter his/her name. After that I will keep track of the name and save some data into a txt file using the name.

例如，

名称输入
NAME =约翰

Name input is name = "John"

所以我有一个数据
数据=1，2，3;

And so I have a data data="1, 2, 3";

然后我保存John.txt文件中的数据。

and then I save the "data" in John.txt file.

任何人都知道该怎么办呢？我认为这个问题是如何弹出一个对话框，用户输入名称。

Anyone know how to do it? I think the problem is how to pop out a dialog for the user to enter name.

感谢您！

推荐答案

我preFER采取使用不锁定的应用程序，并从更传统的Win32对话框移开对话框的方法。

I prefer to take an approach using dialogs that doesn't lock up the application, and moves away from the more traditional Win32 Dialog.

示例

输入对话框隐藏

在这个例子中我使用 MVVM 的基础的解决方案，我用我的应用程序的简化版本。它可能不是pretty，但应该给你它背后的基本知识扎实的想法。

In this example I use a simplified version of the MVVM based solution I am using for my applications. It may not be pretty, but should give you a solid idea on the basics behind it.

的XAML：

<Window x:Class="WpfApplication1.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>
    <StackPanel>
        <Button Content="Cool Button" x:Name="CoolButton" Click="CoolButton_Click"/>
        <ListBox x:Name="MyListBox"/>
    </StackPanel>

    <!-- It's important that this is in the end of the XAML as it needs to be on top of everything else! -->
    <Grid x:Name="InputBox" Visibility="Collapsed">
        <Grid Background="Black" Opacity="0.5"/>
        <Border
            MinWidth="250"
            Background="Orange" 
            BorderBrush="Black" 
            BorderThickness="1" 
            CornerRadius="0,55,0,55" 
            HorizontalAlignment="Center" 
            VerticalAlignment="Center">
            <StackPanel>
                <TextBlock Margin="5" Text="Input Box:" FontWeight="Bold" FontFamily="Cambria" />
                <TextBox MinWidth="150" HorizontalAlignment="Center" VerticalAlignment="Center" x:Name="InputTextBox"/>
                <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
                    <Button x:Name="YesButton" Margin="5" Content="Yes" Background="{x:Null}" Click="YesButton_Click"/>
                    <Button x:Name="NoButton" Margin="5" Content="No" Background="{x:Null}" Click="NoButton_Click" />
                </StackPanel>
            </StackPanel>
        </Border>
    </Grid>
</Grid>

这很容易显示此对话框，你只需要在输入框网​​格的可见性设置为可见。然后，您只需处理是/否按钮，并从文本框输入文本。

It's very easy to show this dialog as you only need to set the Visibility of the InputBox grid to visible. You then simply handle the Yes / No buttons and get the Input text from the TextBox.

因此​​，而不是使用code，需要的ShowDialog（），您只需设置能见度选项可见。还有一些事情在这个例子中，我们将在$ C $处理C-背后，例如像处理是/否按钮点击后清零inputText的盒子做的。

So instead of using code that requires ShowDialog(), you simply set the Visibility option to Visible. There are still some things to do in this example that we will handle in code-behind, like for example clearing the InputText box after handling the Yes/No Button clicks.

的code-背后：

namespace WpfApplication1
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void CoolButton_Click(object sender, RoutedEventArgs e)
        {
            // CoolButton Clicked! Let's show our InputBox.
            InputBox.Visibility = System.Windows.Visibility.Visible;
        }

        private void YesButton_Click(object sender, RoutedEventArgs e)
        {
            // YesButton Clicked! Let's hide our InputBox and handle the input text.
            InputBox.Visibility = System.Windows.Visibility.Collapsed;

            // Do something with the Input
            String input = InputTextBox.Text;
            MyListBox.Items.Add(input); // Add Input to our ListBox.

            // Clear InputBox.
            InputTextBox.Text = String.Empty;
        }

        private void NoButton_Click(object sender, RoutedEventArgs e)
        {
            // NoButton Clicked! Let's hide our InputBox.
            InputBox.Visibility = System.Windows.Visibility.Collapsed;

            // Clear InputBox.
            InputTextBox.Text = String.Empty;
        }
    }
}

的$ C $的c-后面可以很容易地用一个依赖完成，或者如在本例视图模型的逻辑，但为简单起见，我保持在$ C $的c-后面

The code-behind could easily be done using a Dependency, or as ViewModel logic in this case, but for simplicity I kept it in the code-behind.

这篇关于WPF C＃输入框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！