Currently it is not possible to represent time as 24:00 in time picker control as it uses the .NET DateType type, which does not support "24:00" as valid time.

ADD. RadTextBox - there should be a mode whether the undo should bring back the previous word or to work for each character

IMPROVE. RadTextBox - add option to choose whether the NullText should be wrapped or not, when used in MultiLine text box
COMMENT: This functionality is supported by RadTextBoxControl. Please use it instead.

When the user is typing before already typed text, the text is overridden. Add the ability to insert characters instead of replacing them like in the .Net MaskedTextBox.

Currently there can only be one delimiter in the autocomplete box. Different users might be accustomed to using different delimiters, even one user using several delimiters.

1. limitation of the time that can be chosen (e.g. 8 AM to 5 PM)
2. set the interval of increasing and decreasing the Minutes part to 30 instead of 1

NO WORKAROUND

Resolution: 
In release Q2 2014 we are introducing logic that allow to set time range by MinValue and MaxValue properties of RadTimePicker. To set the interval of increasing and decreasing of the minute’s part you can use the MinutesStep property of the MaskDateTimeProvider. 

For example for RadTimePicker:
(this.radTimePicker1.TimePickerElement.MaskedEditBox.Provider as MaskDateTimeProvider).MinutesStep = 30;

For example for RadDateTimePicker:
RadMaskedEditBoxElement mask = (RadMaskedEditBoxElement)this.radDateTimePicker1.DateTimePickerElement.TextBoxElement;
MaskDateTimeProvider provider = mask.Provider as MaskDateTimeProvider;
provider.MinutesStep = 30;

[C#] [Export(typeof(IControlSpellChecker))] class MyTextBoxControlSpellChecker : ControlSpellCheckerBase { #region Constants private static readonly char[] WordPartSeparators = new char[] { '-', '–', '’', '\\', '/', '|', '=', '*', '(', ')' }; #endregion #region Fields private RadTextBoxControl textBox; #endregion #region Constructors public MyTextBoxControlSpellChecker() { } #endregion #region Properties public override Control CurrentControl { get { return this.textBox; } set { this.textBox = (RadTextBoxControl)value; } } #endregion #region Methods public override void ChangeCurrentWord(string suggestion) { int selectionStartPosition = textBox.SelectionStart; int selectionLength = textBox.SelectionLength; StringBuilder textBoxText = new StringBuilder(this.textBox.Text); textBoxText.Remove(selectionStartPosition, selectionLength); textBoxText.Insert(selectionStartPosition, suggestion); textBox.Text = textBoxText.ToString(); } public override IWordInfo MoveToNextError() { foreach (TextBoxWordInfo wordInfo in this.GetListOfWords()) { if (!this.CheckWordIsCorrect(wordInfo.Word)) { this.textBox.SelectionStart = wordInfo.StartPosition; this.textBox.SelectionLength = wordInfo.Word.Length; this.textBox.Focus(); return wordInfo; } } return null; } private IEnumerable<IWordInfo> GetListOfWords() { foreach (var wordItem in this.GetWordsFromText(this.textBox.Text)) { if (wordItem.Word == " " || wordItem.Word == Environment.NewLine || wordItem.Word == "\r" || wordItem.IsUppercase || wordItem.ContainsDigits) { continue; } int partIndex = 0; int startIndex = wordItem.IndexInText; foreach (string word in wordItem.Word.Split(WordPartSeparators, StringSplitOptions.None)) { string trimmedWord = TrimWordEnd(word); startIndex += TrimWordStart(ref trimmedWord); var wordInfo = new TextBoxWordInfo(trimmedWord, startIndex); if (trimmedWord.Length > 1) { yield return wordInfo; } startIndex += word.Length; startIndex++;//+1 for the separator partIndex++; } } } private IEnumerable<WordItem> GetWordsFromText(string text) { bool wordContainsDigits = false; List<WordItem> words = new List<WordItem>(text.Length / 7); StringBuilder currentWord = new StringBuilder(); bool onlyUpperLetters = true; int i = 0; for (i = 0; i < text.Length; i++) { if (text[i] == Environment.NewLine[0]) { if (currentWord.Length > 0) { words.Add(new WordItem(currentWord.ToString(), i - currentWord.Length, wordContainsDigits, onlyUpperLetters)); currentWord.Clear(); } words.Add(new WordItem(Environment.NewLine, i - currentWord.Length, wordContainsDigits, onlyUpperLetters)); if (i + 1 < text.Length && text[i + 1] == Environment.NewLine[1]) { i++; } wordContainsDigits = false; onlyUpperLetters = true; } else if (text[i] != '\'' && (text[i].ToString() == " " || text[i].ToString() == "\t" || Char.IsPunctuation(text[i]))) { if (currentWord.Length > 0) { words.Add(new WordItem(currentWord.ToString(), i - currentWord.Length, wordContainsDigits, onlyUpperLetters)); currentWord.Clear(); } words.Add(new WordItem(text[i].ToString(), i - currentWord.Length, wordContainsDigits, onlyUpperLetters)); wordContainsDigits = false; onlyUpperLetters = true; } else { char nextChar = text[i]; if (nextChar > '0' && nextChar < '9') { wordContainsDigits = true; } onlyUpperLetters = onlyUpperLetters && !char.IsLower(nextChar); currentWord.Append(text[i]); } } if (currentWord.Length > 0) { words.Add(new WordItem(currentWord.ToString(), i - currentWord.Length, wordContainsDigits, onlyUpperLetters)); } return words; } private int TrimWordStart(ref string word) { int index = 0; while (index < word.Length && !char.IsLetter(word[index])) { index++; } if (index == 0) { return index; } if (index < word.Length) { word = word.Substring(index); } else { word = string.Empty; } return index; } private string TrimWordEnd(string word) { int index = word.Length - 1; while (index >= 0 && !char.IsLetter(word[index])) { index--; } if (index >= 0) { return word.Substring(0, index + 1); } return string.Empty; } private bool CheckWordIsCorrect(string word) { //TODO: add built-in dictionary, to allow suggestions for these words if (string.CompareOrdinal(word, "Telerik") == 0 || string.CompareOrdinal(word, "Microsoft") == 0 || string.CompareOrdinal(word, "Silverlight") == 0 || string.CompareOrdinal(word, "RadRichTextBox") == 0 || string.CompareOrdinal(word, "RadControls") == 0) { return true; } if (this.IgnoredWords != null && this.IgnoredWords.ContainsWord(word)) { return true; } return base.SpellChecker.CheckWordIsCorrect(word); } public override RadDocument GetContentAsDocument() { TxtFormatProvider txtFormatProvider = new TxtFormatProvider(); RadDocument document = txtFormatProvider.Import(this.textBox.Text); return document; } public override void SetContentFromDocument(RadDocument document) { TxtFormatProvider txtFormatProvider = new TxtFormatProvider(); this.textBox.Text = txtFormatProvider.Export(document); } #endregion } internal struct WordItem { public string Word; public int IndexInText; public bool ContainsDigits; public bool IsUppercase; public WordItem(string word, int indexInText, bool containsDigits, bool isUppercase) { this.Word = word; this.IndexInText = indexInText; this.ContainsDigits = containsDigits; this.IsUppercase = isUppercase; } }

RadMaskedEditBox - the ability to access the ErrorProvider in order to change the image or other properties.

RadAutoCompleteBox - add functionality that allow you to show Popup without typing any char.

IMPROVE. RadSpellChecker - add ability to modify the €œThe spelling check is completed€ text in the message box.

The RadTokenizedTextItem should reference the data items as well. 

There should be a TextAlign property at RadMaskedEditBox contorl level

ADD. RadBrowseEditor - add FileSaveDialog support

One should be able to change the color of the RadTextBox text when it is disabled.

Add support for case sensitivity search in the suggested elements.

ADD. RadTextBox - add redo functionality

The new functionality should prevent duplicates to be added as tokens in the editor. An already selected item should not be visible in the popup as well. 

The attached 1148813-AutocompleteDuplicates.zip project features a possible custom solution. 

The textbox should increase its size when entering text.

Currently all spell checker dialogs are not accessible for customization.