从RichTextBox的WPF中显示LineNumbers

问题描述

我发现了一个例子，如何显示从的RichTextBox 的LineNumbers Windows窗体。

I found an example, how to show the LineNumbers from a RichTextBox in Windows Forms.http://www.codeproject.com/Articles/38858/Line-Numbers-for-RichText-Control-in-C

可有人为它的一个示例中的 WPF ？

Have somebody an example for it in WPF?

编辑：

是否有人有工作，AvalonEdit，因为他想表现LineNumbers 。在他的PROGRAMM，可以通过我的问题，帮助我

Does someone have work with AvalonEdit, because he wanted to show LineNumbers in his Programm and can help me by my Problem.

推荐答案

只需使用你的文本框自定义模板;以下的答案可以帮助你：

Just use a custom template for your TextBox; the following answer may help you:

的

更新

更改答案让作品OP预期

Changing the answer to get works as OP expected.

<Style x:Key="Local_TextBox" TargetType="{x:Type TextBoxBase}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TextBoxBase}">
                <Border Name="Border" Background="{TemplateBinding Background}">
                    <ScrollViewer x:Name="PART_ContentHost" />
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

设计师，

Designer,

<DockPanel>
    <TextBlock Text="{Binding ElementName=uiTextBox, Path=(local:AttachedProperties.BindableLineCount)}"/>
    <TextBox x:Name="uiTextBox" TextWrapping="Wrap" local:AttachedProperties.HasBindableLineCount="True"
            AcceptsReturn="True" Text="{Binding LongText}" Style="{StaticResource Local_TextBox}" />
</DockPanel>

附加属性，

Attached property,

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;

namespace Cmsn.Software.Tutorials.numberedTextBox
{
    public class AttachedProperties
    {
        #region BindableLineCount AttachedProperty
        public static string GetBindableLineCount(DependencyObject obj)
        {
            return (string)obj.GetValue(BindableLineCountProperty);
        }

        public static void SetBindableLineCount(DependencyObject obj, string value)
        {
            obj.SetValue(BindableLineCountProperty, value);
        }

        // Using a DependencyProperty as the backing store for BindableLineCount.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty BindableLineCountProperty =
            DependencyProperty.RegisterAttached(
            "BindableLineCount",
            typeof(string),
            typeof(AttachedProperties),
            new UIPropertyMetadata("1"));

        #endregion // BindableLineCount AttachedProperty

        #region HasBindableLineCount AttachedProperty
        public static bool GetHasBindableLineCount(DependencyObject obj)
        {
            return (bool)obj.GetValue(HasBindableLineCountProperty);
        }

        public static void SetHasBindableLineCount(DependencyObject obj, bool value)
        {
            obj.SetValue(HasBindableLineCountProperty, value);
        }

        // Using a DependencyProperty as the backing store for HasBindableLineCount.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty HasBindableLineCountProperty =
            DependencyProperty.RegisterAttached(
            "HasBindableLineCount",
            typeof(bool),
            typeof(AttachedProperties),
            new UIPropertyMetadata(
                false,
                new PropertyChangedCallback(OnHasBindableLineCountChanged)));

        private static void OnHasBindableLineCountChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
        {
            var textBox = (TextBox)o;
            if ((e.NewValue as bool?) == true)
            {
                textBox.SizeChanged += new SizeChangedEventHandler(box_SizeChanged);
                textBox.SetValue(BindableLineCountProperty, textBox.LineCount.ToString());
            }
            else
            {
                textBox.SizeChanged -= new SizeChangedEventHandler(box_SizeChanged);
            }
        }

        static void box_SizeChanged(object sender, SizeChangedEventArgs e)
        {
            var textBox = (TextBox)sender;
            string x = string.Empty;
            for (int i = 0; i < textBox.LineCount; i++)
            {
                x += i + 1 + "\n";
            }
            textBox.SetValue(BindableLineCountProperty, x);
        }
        #endregion // HasBindableLineCount AttachedProperty
    }
}

这篇关于从RichTextBox的WPF中显示LineNumbers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！