自动调整文本框控件垂直

本文介绍了自动调整文本框控件垂直的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

在C＃的形式，我有一个面板固定四面，并在里面，一个文本框，挂靠顶部/左/右。

In a C# form, I have a panel anchored all sides, and inside, a textbox, anchored top/left/right.

当文字被装载到文本框，我希望它自动扩大自身垂直，这样我不需要滚动文本框（滚动顶多面板，如果有不适合的面板更多的文字） 。有没有办法用一个文本框来做到这一点？ （我不受限的，所以如果有适合的描述另一个控制使用这种控制，可随时提吧）

When text gets loaded into the textbox, i want it to auto expand itself vertically so that I don't need to scroll the textbox (scroll the panel at most, if there is more text that doesn't fit the panel). is there any way to do this with a textbox? (i'm not constrained to use this control so if there's another control that fits the description, feel free to mention it)

推荐答案

我会认为这是一个多行文本框，你会允许它垂直增长。这code效果很好：

I'll assume this is a multi-line text box and that you'll allow it to grow vertically. This code worked well:

private void textBox1_TextChanged(object sender, EventArgs e) { Size sz = new Size(textBox1.ClientSize.Width, int.MaxValue); TextFormatFlags flags = TextFormatFlags.WordBreak; int padding = 3; int borders = textBox1.Height - textBox1.ClientSize.Height; sz = TextRenderer.MeasureText(textBox1.Text, textBox1.Font, sz, flags); int h = sz.Height + borders + padding; if (textBox1.Top + h > this.ClientSize.Height - 10) { h = this.ClientSize.Height - 10 - textBox1.Top; } textBox1.Height = h; }

您应该当文本框为空，如设置属性的minimumSize做一些合理的。

You ought to do something reasonable when the text box is empty, like setting the MinimumSize property.