WPF迭代 [英] WPF Iteration

问题描述

你好，

使用.net 4& VS C#Express 2010，这对我来说都是新手，我正在完成一些基本的编程任务.

我正在尝试在WFP文本框中分配一个while循环计数，这很容易在wpf控制台中进行.

这是我的代码和xaml:

Hello,

Using .net 4 & VS C# Express 2010, new to both and I''m working through some basic programming tasks.

I''m trying to have a while loop count disaplyed in my WFP textbox which is easy enough to do in a wpf console.

Here''s my code and xaml:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

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

            int n = 1;

            while (n < 6)
            {
                textBox1.Text = "current value of n is " + n++;
            }
        }
    }
}

<Window x:Class="WpfWhileLoop.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>
<TextBox Height="311" HorizontalAlignment="Left" Name="textBox1" VerticalAlignment="Top" Width="503" AcceptsReturn="True" />
</Grid>
</Window>

当我运行它时，我得到:

n的当前值为5

我正在尝试显示每个增量，例如:

n的当前值为1
n的当前值为2
n的当前值为3
n的当前值为4
n的当前值为5

有什么想法可以使我工作吗?

When I run this I get:

current value of n is 5

I ''m trying to have each increment displayed, e.g.:

current value of n is 1
current value of n is 2
current value of n is 3
current value of n is 4
current value of n is 5

Any ideas how i can make this work?

Thanks!

推荐答案

最简单的方法如下:

The simplest way to do it is probably as follows:

textBox1.Text += "current value of n is " + (n++) + Environment.NewLine;

这会将字符串追加到Text属性的当前值的新值.

我假设这是一个简化的示例.如果您的实际要求更复杂，则可能需要查看将值列表绑定到类似ListBox的东西，并使用数据模板对其进行适当的格式化.这将是更常规的"WPF"处理方式.

您可能需要考虑翻阅C#入门书籍.这是一个相当基本的字符串操作任务，您可能会从基础知识中受益.

This appends the string to new value to the current value of the Text property.

I''m assuming this is a simplified example. If you''re actual requirement is more complex, you may want to look at binding the list of values to something like a ListBox and using data templates to format it appropriately. This would be a more normal ''WPF'' way of doing things.

You may want to consider looking through a C# for beginners book. This is a fairly basic string manipulation task, and you may benefit from working through the basics.

您只需要在每次迭代中添加新行.

Hi,

You just need to add a new line in each iteration.

while (n < 6)
{
    textBox1.Text = textBox1.Text + "current value of n is " + n++ + Environment.NewLine;
}

瓦莱里.

Valery.

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