RadMarkupDialog should provide the possibility to be localized by a localization providers.

It will be nice if there is a TextAlign property at control level for RadMaskedEditBox.

There should be a TextAlign property at RadMaskedEditBox contorl level

A nice addition to our RadTextBox will be the ability to add an autocomplete mode supporting multiple choinces, just like in the "To" textbox in Outlook.

RadMaskedEditBox should be able to handle dynamic masks. The core of this feature is the ability to have a value for the number of allowed characters on one hand and a value for the number of maximum characters on the other hand.

One should be able to pick and type only the time portion of a datetime value.

Add a possibility to suggest misspelled words if they are all capital letters or contains numbers.

Workaround:
((RadDateTimePickerCalendar)this.dtpFromTaarich.DateTimePickerElement.GetCurrentBehavior()).Calendar.Navigating +=
               new CalendarNavigatingEventHandler(dtp_Navigating);
 
void dtp_Navigating(object sender, Telerik.WinControls.UI.CalendarNavigatingEventArgs e)
       {
           if (e.Direction == Telerik.WinControls.UI.CalendarNavigationDirection.Forward)
           {
               if (!e.IsFastNavigation)
                   e.StartDate = (sender as RadCalendar).CalendarElement.View.ViewStartDate.AddMonths(-1);
               else
                   e.StartDate = (sender as RadCalendar).CalendarElement.View.ViewStartDate.AddMonths(-12);
           }
           else if (!e.IsFastNavigation)
           {
               e.StartDate = (sender as RadCalendar).CalendarElement.View.ViewStartDate.AddMonths(1);
           }
           else e.StartDate = (sender as RadCalendar).CalendarElement.View.ViewStartDate.AddMonths(12);
       }

Resolution: You need to set the RightToLeft property to Yes of CalendarBehavior
RadDateTimePickerCalendar calendarBehavior = this.radDateTimePicker1.DateTimePickerElement.GetCurrentBehavior() as RadDateTimePickerCalendar;
RadCalendar calendar = calendarBehavior.Calendar as RadCalendar;
calendar.RightToLeft = System.Windows.Forms.RightToLeft.Yes;

RadTimePicker/RadTimePickerElement should display empty text or Null text if the Value property is set to null.

Workaround:
        Me.RadTimePicker1.NullText = "Please, enter a time!"
        Me.RadTimePicker1.Value = Nothing
        Me.RadTimePicker1.TimePickerElement.MaskedEditBox.TextBoxItem.Text = ""

Add functionality to be able to pick up the time together with the date and to pick the time only.

One should be able to show a desired time range i.e. from 8 am to 6 pm

[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; } }

The RadTextBox control should rise the PreviewKeyDown event.

Expose the AutoCompleteDropDown so it's behavior can be customized and the user can subscribe to its events for example.

A nice add-on to the control would be having Get/SetTextField methods, allowing for complete customization of each masked field.

You guys expose most of the properties from the "HostedControl" on your custom controls.  One that seems to be missing, and requires an unintuitive line of code is the "UseSystemPasswordChar" boolean property from the TextBox.  I think it makes a lot of sense to expose this.

See: http://www.telerik.com/forums/usesystempasswordchar-property-for-radtextbox

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.

Improve the RadTextBoxControl to allow different text alignment as Microsoft TextBox.

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