在C#中将表单的大小调整为其标题文本

时间:2013-08-06 19:56:14

标签: c# forms size titlebar caption

有没有办法让表单大小适应标题/标题文字的大小?

例如,官方C#消息框表单将调整为其标题文本的大小(注意 lorem ipsum ):

Normal Message Box

其他表单不会将其大小调整为标题文字的大小:

Other form

相反,在末尾添加省略号以适合"尺寸"中提到的尺寸。设计师的财产。

有没有办法让表单调整到标题的大小而不是我们提到的大小?如果没有,有没有办法获得文本的全长,以便我们可以将其分配给表单?

我尝试使用

设置表单的宽度
int topTextWidth =  TextRenderer.MeasureText(this.Text, this.Font).Width;
this.Width = topTextWidth;

this.Font显然是指另一种字体大小。

2 个答案:

答案 0 :(得分:7)

对于那些想要完整答案的人来说,就是这样。

根据标题文本调整表单大小的实际行如下:

this.Width = TextRenderer.MeasureText(this.Text, SystemFonts.CaptionFont).Width + AllButtonsAndPadding;

AllButtonsAndPadding包含所有按钮的宽度(最小化,最大化和关闭),窗口边框和图标。获取这些信息需要一些编码。这是一个完整自我调整大小的表单示例,无论您放置什么按钮或图标。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;

namespace WindowAutoAdapt
{
public partial class Form1 : Form
{
    //A default value in case Application.RenderWithVisualStyles == false
    private int AllButtonsAndPadding = 0;
    private VisualStyleRenderer renderer = null;

    public Form1()
    {
        InitializeComponent();
        this.Text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit."; //A big text in the title
        GetElementsSize();
        ResizeForm();
    }

    //This gets the size of the X and the border of the form
    private void GetElementsSize()
    {
        var g = this.CreateGraphics();

        // Get the size of the close button.
        if (SetRenderer(VisualStyleElement.Window.CloseButton.Normal))
        {
            AllButtonsAndPadding += renderer.GetPartSize(g, ThemeSizeType.True).Width;
        }

        // Get the size of the minimize button.
        if (this.MinimizeBox && SetRenderer(VisualStyleElement.Window.MinButton.Normal))
        {
            AllButtonsAndPadding += renderer.GetPartSize(g, ThemeSizeType.True).Width;
        }

        // Get the size of the maximize button.
        if (this.MaximizeBox && SetRenderer(VisualStyleElement.Window.MaxButton.Normal))
        {
            AllButtonsAndPadding += renderer.GetPartSize(g, ThemeSizeType.True).Width;
        }

        // Get the size of the icon.
        if (this.ShowIcon)
        {
            AllButtonsAndPadding += this.Icon.Width;
        }

        // Get the thickness of the left, bottom, 
        // and right window frame.
        if (SetRenderer(VisualStyleElement.Window.FrameLeft.Active))
        {
            AllButtonsAndPadding += (renderer.GetPartSize(g, ThemeSizeType.True).Width) * 2; //Borders on both side
        }
    }

    //This resizes the form
    private void ResizeForm()
    {
        this.Width = TextRenderer.MeasureText(this.Text, SystemFonts.CaptionFont).Width + AllButtonsAndPadding;
    }

    //This sets the renderer to the element we want
    private bool SetRenderer(VisualStyleElement element)
    {
        bool bReturn = VisualStyleRenderer.IsElementDefined(element);

        if (bReturn && renderer == null)
            renderer = new VisualStyleRenderer(element);
        else
            renderer.SetParameters(element);

        return bReturn;
    }
 }
 }

答案 1 :(得分:0)

谢谢@CydrickT,这很有帮助。将此应用到FormBorderStyle FixedDialog ControlBox == false并且表单上有FormBorderStyle的窗口时需要进行一些修改(需要try catch来处理抛出的错误)。

即使指定了图标,某些Form1_TextChanged()也不会显示它们(即使ShowIcon == true,您的代码基于某些逻辑),因此此版本的代码会进行调整为此。

我还添加了一个新的私有属性,它将构造函数中设置的窗口的最小宽度保持为最小宽度(如果已指定)或设计时间宽度(如果未指定)。如果要在代码中更改其文本(标题),然后重新显示该窗体,则允许收缩窗口的宽度。

我为表单的文本using System; using System.Drawing; using System.Windows.Forms; using System.Windows.Forms.VisualStyles; namespace WindowAutoAdapt { public partial class Form1: Form { private int AllButtonsAndPadding = 10;//seems things are coming up about this amount short so. . . private VisualStyleRenderer renderer = null; private int minWidth = 0;//will hold either the minimum size width if specified or the design time width of the form. public Form1() { InitializeComponent(); //Capture an explicit minimum width if present else store the design time width. if (this.MinimumSize.Width > 0) { minWidth = this.MinimumSize.Width;//use an explicit minimum width if present. } else { minWidth = this.Size.Width;//use design time width } GetElementsSize(); ResizeForm(); } /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void Form1_TextChanged(object sender, EventArgs e) { GetElementsSize(); ResizeForm(); } //This gets the size of the X and the border of the form private void GetElementsSize() { var g = this.CreateGraphics(); // Get the size of the close button. if (SetRenderer(VisualStyleElement.Window.CloseButton.Normal)) { AllButtonsAndPadding += renderer.GetPartSize(g, ThemeSizeType.True).Width; } // Get the size of the minimize button. if (this.MinimizeBox && SetRenderer(VisualStyleElement.Window.MinButton.Normal)) { AllButtonsAndPadding += renderer.GetPartSize(g, ThemeSizeType.True).Width; } // Get the size of the maximize button. if (this.MaximizeBox && SetRenderer(VisualStyleElement.Window.MaxButton.Normal)) { AllButtonsAndPadding += renderer.GetPartSize(g, ThemeSizeType.True).Width; } // Get the size of the icon only if it is actually going to be displayed. if (this.ShowIcon && this.ControlBox && (this.FormBorderStyle == FormBorderStyle.Fixed3D || this.FormBorderStyle == FormBorderStyle.Sizable || this.FormBorderStyle == FormBorderStyle.FixedSingle)) { AllButtonsAndPadding += this.Icon.Width; } // Get the thickness of the left and right window frame. if (SetRenderer(VisualStyleElement.Window.FrameLeft.Active)) { AllButtonsAndPadding += (renderer.GetPartSize(g, ThemeSizeType.True).Width) * 2; //Borders on both side } } //This resizes the form private void ResizeForm() { //widen window if title length requires it else contract it to the minWidth if required. int newWidth = TextRenderer.MeasureText(this.Text, SystemFonts.CaptionFont).Width + AllButtonsAndPadding; if (newWidth > minWidth) { this.Width = newWidth; } else { this.Width = minWidth; } } //This sets the renderer to the element we want private bool SetRenderer(VisualStyleElement element) { try { bool bReturn = VisualStyleRenderer.IsElementDefined(element); if (bReturn && renderer == null) { renderer = new VisualStyleRenderer(element); } else { renderer.SetParameters(element); } return bReturn; } catch (Exception) { return false; } } } } 添加了一个文本更改方法,以便每当表单的标题文本发生更改时,表单宽度都会调整(同样,如果重复使用表单实例)。表单的设计者当然需要为要使用的Text Changed事件设置它。

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