An extension for textblocks in WPF to get rid of annoying spaces between runs.

TextBlockExtension.cs

// ----------------------------------------------------------------------------------
// <copyright file="TextBlockExtension.cs" >
//   This file is part of the MyS3Uploader distribution
// 
//   Copyright (c) 2022
// 
//   This program is distributed WITHOUT ANY WARRANTY; without even the implied
//   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// </copyright>
// <summary>
//   <developer>Casandra/Adrian Hum</developer>
//   <solution>MyS3Uploader/S3Commander/TextBlockExtension.cs</solution>
//   <created>2022-09-22 11:09 PM</created>
//   <modified>2022-09-22 11:44 PM</modified>
//   <usage>local:TextBlockExtension.RemoveEmptyRuns="True" in the TextBlock tag.</usage>
// </summary>
// ----------------------------------------------------------------------------------

using System;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;

namespace CommonFunctions {
    public class TextBlockExtension {
        public static readonly DependencyProperty RemoveEmptyRunsProperty =
            DependencyProperty.RegisterAttached("RemoveEmptyRuns", typeof(bool),
                typeof(TextBlock), new PropertyMetadata(false));

        public static readonly DependencyProperty PreserveSpaceProperty =
            DependencyProperty.RegisterAttached("PreserveSpace", typeof(bool),
                typeof(Run), new PropertyMetadata(false));

        public static bool GetRemoveEmptyRuns(DependencyObject obj) {
            return (bool) obj.GetValue(RemoveEmptyRunsProperty);
        }

        public static void SetRemoveEmptyRuns(DependencyObject obj, bool value) {
            obj.SetValue(RemoveEmptyRunsProperty, value);

            if (value)
            {
                if (obj is TextBlock tb)
                    tb.Loaded += Tb_Loaded;
                else
                    throw new NotSupportedException();
            }
        }


        public static bool GetPreserveSpace(DependencyObject obj) {
            return (bool) obj.GetValue(PreserveSpaceProperty);
        }

        public static void SetPreserveSpace(DependencyObject obj, bool value) {
            obj.SetValue(PreserveSpaceProperty, value);
        }


        private static void Tb_Loaded(object sender, RoutedEventArgs e) {
            var tb = sender as TextBlock;
            tb.Loaded -= Tb_Loaded;

            var spaces = tb.Inlines.Where(a => a is Run
                                            && ((Run) a).Text == " "
                                            && !GetPreserveSpace(a)).ToList();
            spaces.ForEach(s => tb.Inlines.Remove(s));
        }
    }
}