有没有一种简单的方法在弹出文本窗口中创建两列？ [英] Is there an easy way to create two columns in a popup text window?

问题描述

这似乎是一件容易的事。我只是想弹出一个文本窗口，并显示两列数据 - 在左边的说明和右侧显示相应的值。我还没有与形式的工作很多，所以我只是抓住了那似乎是适当的，一个TextBox第一个控件。我想用的标签是创建第二列一个简单的方法，但我发现事情根本不工作那么好。

似乎有两个问题这样我试图做到这一点（见下文）。首先，我由于多么复杂的字体阅读在众多网站的MeasureString功能不是很精确，其字距问题和所有。第二个问题是我不知道TextBox控件用作为下它的StringFormat。

总之，结果是，我总是在右列的项目结束通过标签关闭。我想我可以推出自己的文本窗口，并尽一切自己，但哎呀，是不是有一个简单的方法来做到这一点？

感谢您的帮助！

 文本框的textBox =新的TextBox（）; 
 textBox.Font =新的字体（宋体，11）; 
 textBox.Dock = DockStyle.Fill; 
 textBox.Multiline = TRUE; 
 textBox.WordWrap = FALSE; 
 textBox.ScrollBars = ScrollBars.Vertical; 
 
 Form表单=新表（）; 
 form.Text =配方; 
 form.Size =新的大小（400，600）; 
 form.FormBorderStyle = FormBorderStyle.Sizable; 
 form.StartPosition = FormStartPosition.CenterScreen; 
 form.Controls.Add（的textBox）; 
 
图形G = form.CreateGraphics（）; 
 
浮动targetWidth = 230; 
 
的foreach（在属性中的PropertyInfo财产）
 {
字符串文本=的String.Format（{0}：\t，说明）; 
 
，而（g.MeasureString（文字，textBox.Font）.WIDTH< targetWidth）
文字+ =\t; 
 
 textBox.AppendText（文本+ value.ToString（）+\\\
）; 
} 
 
 g.Dispose（）; 
 form.ShowDialog（）; 
  

解决方案

如果你愿意，你可以翻译这个VB.Net代码为C＃。这里的理论是，您更改控制选项卡的大小。

 私人声明函数SendMessage函数_ 
库USER32别名SendMessageA_ 
（BYVAL句柄作为IntPtr的，BYVAL WMSG整数，_ 
 BYVAL的wParam为整数，为ByRef lParam的作为整数）作为整数
 
 
私人小组SetTabStops（BYVAL ctlTextBox作为文本框）
 
常量EM_SETTABSTOPS作为整数=安培; HCBS 
 
尺寸标签（）作为整数= {20，40，80} 
 
 SendMessage函数（ctlTextBox.Handle，EM_SETTABSTOPS，_ 
 tabs.Length，标签（0））
 
端子
  

我转换一个版本为C＃的你。 。经过测试，在VS2005工作

这using语句添加到您的窗体：

 使用System.Runtime.InteropServices; 
  

将这个权类声明后：

 私人const int的EM_SETTABSTOPS = 0x00CB; 
函数[DllImport（User32.dll中，字符集= CharSet.Auto）] 
公共静态外部的IntPtr SendMessage函数（IntPtr的H，INT味精，诠释的wParam，INT [] lParam的）; 
  

当你要设置的制表位调用此方法：

 私人无效SetTabStops（文本框ctlTextBox）
 {
 const int的EM_SETTABSTOPS = 203; 
 INT []选项= {100，40，80}; 
 SendMessage函数（textBox1.Handle，EM_SETTABSTOPS，tabs.Length，制表符）; 
} 
  

要使用它，这里是我所做的：

 私人无效Form1_Load的（对象发件人，EventArgs五）
 {
 SetTabStops（textBox1中）; 
 
 textBox1.Text =Hi\tWorld; 
} 
  

This seemed like an easy thing to do. I just wanted to pop up a text window and display two columns of data -- a description on the left side and a corresponding value displayed on the right side. I haven't worked with Forms much so I just grabbed the first control that seemed appropriate, a TextBox. I thought using tabs would be an easy way to create the second column, but I discovered things just don't work that well.

There seems to be two problems with the way I tried to do this (see below). First, I read on numerous websites that the MeasureString function isn't very precise due to how complex fonts are, with kerning issues and all. The second is that I have no idea what the TextBox control is using as its StringFormat underneath.

Anyway, the result is that I invariably end up with items in the right column that are off by a tab. I suppose I could roll my own text window and do everything myself, but gee, isn't there a simple way to do this?

Thanks for any help!

	TextBox textBox    = new TextBox();
	textBox.Font       = new Font("Calibri", 11);
	textBox.Dock       = DockStyle.Fill;
	textBox.Multiline  = true;
	textBox.WordWrap   = false;
	textBox.ScrollBars = ScrollBars.Vertical;

	Form form            = new Form();
	form.Text            = "Recipe";
	form.Size            = new Size(400, 600);
	form.FormBorderStyle = FormBorderStyle.Sizable;
	form.StartPosition   = FormStartPosition.CenterScreen;
	form.Controls.Add(textBox);

	Graphics g = form.CreateGraphics();

	float targetWidth = 230;

	foreach (PropertyInfo property in properties)
    {
		string text = String.Format("{0}:\t", Description);

		while (g.MeasureString(text,textBox.Font).Width < targetWidth)
			text += "\t";

		textBox.AppendText(text + value.ToString() + "\n");
	}

	g.Dispose();
	form.ShowDialog();

解决方案

If you want, you can translate this VB.Net code to C#. The theory here is that you change the size of a tab in the control.

Private Declare Function SendMessage _
  Lib "user32" Alias "SendMessageA" _
  (ByVal handle As IntPtr, ByVal wMsg As Integer, _
  ByVal wParam As Integer, ByRef lParam As Integer) As Integer


Private Sub SetTabStops(ByVal ctlTextBox As TextBox)

  Const EM_SETTABSTOPS As Integer = &HCBS

  Dim tabs() As Integer = {20, 40, 80}

  SendMessage(ctlTextBox.Handle, EM_SETTABSTOPS, _
    tabs.Length, tabs(0))

End Sub

I converted a version to C# for you, too. Tested and working in VS2005.

Add this using statement to your form:

using System.Runtime.InteropServices;

Put this right after the class declaration:

    private const int EM_SETTABSTOPS = 0x00CB;
    [DllImport("User32.dll", CharSet = CharSet.Auto)]
    public static extern IntPtr SendMessage(IntPtr h, int msg, int wParam, int[] lParam);

Call this method when you want to set the tabstops:

    private void SetTabStops(TextBox ctlTextBox)
    {
        const int EM_SETTABSTOPS = 203;
        int[] tabs = { 100, 40, 80 };
        SendMessage(textBox1.Handle, EM_SETTABSTOPS, tabs.Length, tabs);
    }

To use it, here is all I did:

    private void Form1_Load(object sender, EventArgs e)
    {
        SetTabStops(textBox1);

        textBox1.Text = "Hi\tWorld";
    }

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