FIX. RadMarkUpEditor does not keep the formatting when IE9 is installed - opening the dialog, formatting the text and switching to html view removes all formatting.

When you focus a RadTextBox you will notice the keyboard button that popups next to the focused control. However, for the RadAutoCompleteBox this keyboard button does not show.

Workaround: show it manually on the GotFocus event and hide it on the LostFocus event 

private void radTextBox1_GotFocus(object sender, EventArgs e)
{
    string progFiles = @"C:\Program Files\Common Files\Microsoft Shared\ink";
    string keyboardPath = Path.Combine(progFiles, "TabTip.exe");
    Process.Start(keyboardPath);
}
 
private void radTextBox1_LostFocus(object sender, EventArgs e)
{
    var procs = Process.GetProcessesByName("TabTip");
    if (procs.Length != 0)
        procs[0].Kill();
}

To reproduce:
- Add RadDateTimepicker and bind it to a bindingsource.
- Set the AutoSelectNextPart property to true.
- Set the datasource of the binding source. 
- The AutoSelectNextPart property is reset to false.

Workaround:
- Set the property after the bindingsource is initialized.

To reproduce: 
1. Enter some text and click the first button. Both properties, Text and Value contain the expected value.
2. Click the second button to clear the text and value.
3. Enter some text again and click the first button. You will notice that the Value remains empty. 

public RadForm1()
{
    InitializeComponent();

    this.radMaskedEditBox1.MaskType = Telerik.WinControls.UI.MaskType.None;
    this.radMaskedEditBox1.Mask = "CCCCCCC";
}

private void radButton1_Click(object sender, EventArgs e)
{
    this.radLabel1.Text = "Text: " + this.radMaskedEditBox1.Text;
    this.radLabel2.Text = "Value: " + this.radMaskedEditBox1.Value + "";
}

private void radButton2_Click(object sender, EventArgs e)
{
    this.radMaskedEditBox1.Clear();
}

Workaround: use MaskType.Standard

To reproduce: 
1. Drag and drop RadColorBox
2. Add localization provider. Use the following article http://www.telerik.com/help/winforms/forms-and-dialogs-colordialog-localization.html
3. Open ColorDialogForm and choose color which name was localized too. Close the form 
54 You will see that the text of RadColorBox is not localized name, it`s system name. 

Workaround: 
1. Subscribe to the ValueChanged event
2. Replace the text of RadColorBox with localized color name

void radColorBox_ValueChanged(object sender, EventArgs e)
{
    string localizedColor = Telerik.WinControls.UI.ColorDialogLocalizationProvider.CurrentProvider.GetLocalizedString(this.radColorBox.ColorDialog.SelectedColor.Name);
    this.radColorBox.ColorBoxElement.TextBoxItem.Text = localizedColor;
}

To reproduce:
-Add RadBrowseEditor to a form and set the DialogType to FolderBrowseDialog.
-At runtime click the browse button to open the "Browse For Folder" dialog and click the "Make New Folder", type a name for the newly created folder BUT DO NOT PRESS THE ENTER KEY and click the OK button, the Value is set to "New Folder" instead of the name I have typed.

FIX. RadMaskedEditBox - the minus sign is stripped our with ExcludePromptAndLiterals and IncludePrompt formats with currency mask, while it should not.

To reproduce:

        Me.RadDateTimePicker1.Format = DateTimePickerFormat.Custom
        Me.RadDateTimePicker1.CustomFormat = "MM/dd/yyyy"

        Dim provider As MaskDateTimeProvider = TryCast(Me.RadDateTimePicker1.DateTimePickerElement.TextBoxElement.Provider, MaskDateTimeProvider)
        provider.AutoSelectNextPart = True

 If you type in 01/01/50, RadDateTimePicker displays 01/01/1950 which is correct. If you type in 01/01/2050, the system is again changing the century and display 01/01/1950 which is incorrect. 

Workaround: use a custom mask provider to customize how the autocompletion work:
    Public Class CustomMaskDateTimeProvider
        Inherits Telerik.WinControls.UI.MaskDateTimeProvider
        Public Sub New(mask As String, culture As CultureInfo, owner As RadMaskedEditBoxElement)
            MyBase.New(mask, culture, owner)

        End Sub

        Protected Overrides Function HandleKeyPress(part As MaskPart, e As KeyPressEventArgs) As Boolean
            Dim value As Integer = 0
            If Not Integer.TryParse(e.KeyChar.ToString(), value) Then
                Return True
            End If

            Dim stringValue As String = String.Empty
            If part.type = PartTypes.MiliSeconds Then
                Dim newValue As Integer = CInt((part.value / Math.Pow(10, (3 - part.len)))) * 10 + value
                part.value = newValue Mod CInt(Math.Pow(10, part.len))
            Else
                stringValue = part.value.ToString()
                If stringValue.Length = part.len AndAlso stringValue.Length >= part.maskPart.Length Then
                    stringValue = stringValue.Substring(1)
                End If

                If Me.AutoCompleteYear AndAlso stringValue.Length = 1 Then
                    stringValue = String.Empty
                End If

                part.value = Integer.Parse(stringValue & e.KeyChar)
            End If

            If part.type = PartTypes.Year AndAlso part.maskPart.Length = 2 Then
                Dim len As Integer = part.value.ToString().Length
                part.value = Integer.Parse(String.Format("{0}{1}", DateTime.Now.Year.ToString().Substring(0, 2), part.value.ToString().Substring(len - 2, 2)))
            End If

            If Me.AutoCompleteYear AndAlso part.type = PartTypes.Year Then
                Dim len As Integer = part.value.ToString().Length
                If len >= 2 Then
                    part.value = Integer.Parse(part.value.ToString().Substring(len - 2, 2))
                End If

                'If part.value >= 50 AndAlso part.value <= 99 Then
                '    part.value += 1900
                'ElseIf part.value >= 500 AndAlso part.value <= 999 Then
                '    part.value += 1000
                'ElseIf part.value < 50 OrElse (part.value > 99 AndAlso part.value < 500) Then
                part.value += 2000
                ' End If
            End If

            If part.value > part.max OrElse part.value < part.min Then
                part.value = value
            End If

            Return True
        End Function
         
    End Class

  Me.RadDateTimePicker1.Format = DateTimePickerFormat.Custom
        Me.RadDateTimePicker1.CustomFormat = "MM/dd/yyyy"

        Me.RadDateTimePicker1.DateTimePickerElement.TextBoxElement.Provider = New CustomMaskDateTimeProvider(Me.RadDateTimePicker1.DateTimePickerElement.TextBoxElement.Mask, Me.RadDateTimePicker1.Culture, Me.RadDateTimePicker1.DateTimePickerElement.TextBoxElement)

        Dim provider As MaskDateTimeProvider = TryCast(Me.RadDateTimePicker1.DateTimePickerElement.TextBoxElement.Provider, MaskDateTimeProvider)
        provider.MaxDate = Me.RadDateTimePicker1.DateTimePickerElement.MaxDate
        provider.AutoSelectNextPart = True
        provider.AutoCompleteYear = True

Thus, the year always be 2000+.

Steps to reproduce:

1. Add a RadPropertyGrid to a form.
2. Select an object with DateTime property
3. Subscribe to the EditorInitialize event and set min and max date.
4. Run the application and open the property for edit. Type in a value outside the valid range and end edit. You will see that the invalid value is saved.

Use attached to reproduce.
- Open the dialog multiple times.

RadMaskEditBox - When MaskType is Numeric and Mask is currency ("C") pasting a value (9.99) results in 09.99.00

When RadDateTimePicker value is set to null then you are not able to enter in the control, a date which is less than the NullValue date.

https://msdn.microsoft.com/en-us/library/system.windows.forms.maskedtextbox.maskcompleted(v=vs.110).aspx

When MaskType is Numeric and Mask is currency ("C") selecting the last two digits and trying to enter value for them results in moving the caret at the end of the last digit right after entering the first number.

To reproduce:       
 Me.RadDateTimePicker2.Format = DateTimePickerFormat.Custom
 Me.RadDateTimePicker2.CustomFormat = "hh:mm tt"

Select the hours part with the mouse, the selection is affected correctly. Select the minutes part, the selection is affected correctly. Select the AM/PM part, the selection is again affected correctly. Now, try to select again the minutes part. You will notice that the cursor is affected correctly but the selection is missing. Once you select the AM/PM part then the selection is not updated properly with the mouse anymore.

Workaround:

Me.RadDateTimePicker1.DateTimePickerElement.TextBoxElement.Provider = New CustomMaskDateTimeProvider(Me.RadDateTimePicker2.DateTimePickerElement.TextBoxElement.Mask, Me.RadDateTimePicker2.Culture, Me.RadDateTimePicker2.DateTimePickerElement.TextBoxElement)


    Public Class CustomMaskDateTimeProvider
        Inherits MaskDateTimeProvider

        Public Sub New(mask As String, culture As CultureInfo, owner As RadMaskedEditBoxElement)
            MyBase.New(mask, culture, owner)

        End Sub
        Public Overrides Function SelectCurrentItemFromCurrentCaret() As Boolean
            Dim currentSelection As Integer = Me.TextBoxItem.SelectionStart
            Dim currentPos As Integer = 0
            Dim selected As Boolean = False

            'If Me.List(Me.SelectedItemIndex).type = PartTypes.AmPm Then
            '    Return True
            'End If

            For i As Integer = 0 To Me.List.Count - 1
                Dim part As MaskPart = Me.List(i)

                If SelectMilliseconds(i, part) Then
                    Exit For
                End If

                If currentSelection >= part.offset AndAlso currentSelection <= part.offset + part.len AndAlso Not part.[readOnly] AndAlso part.type <> PartTypes.Character Then
                    Me.TextBoxItem.SelectionStart = Me.List(i).offset
                    Me.TextBoxItem.SelectionLength = Me.List(i).len
                    Me.SelectedItemIndex = i
                    selected = True
                    Exit For
                End If

                currentPos += part.len
            Next

            Return selected
        End Function

        Private Function SelectMilliseconds(ByVal i As Integer, ByVal part As MaskPart) As Boolean
            If part.type = PartTypes.MiliSeconds AndAlso Me.value.Millisecond Mod 10 = 0 AndAlso part.trimsZeros Then
                Dim newLen As Integer = part.len

                For power As Integer = 1 To part.len

                    If Me.value.Millisecond Mod Math.Pow(10, power) = 0 Then
                        newLen -= 1
                    Else
                        Exit For
                    End If
                Next

                Me.textBoxItem.SelectionStart = Me.list(i).offset
                Me.textBoxItem.SelectionLength = newLen
                Me.SelectedItemIndex = i
                Return True
            End If

            Return False
        End Function
    End Class

If the null date of RadDateTimePicker is current date, you cannot set its value to the same date.

Fix suggest behavior in RadAutoCompleteBox to support spaces in the written text.

WORKAROUND:
public class MyAutoCompleteBox : RadAutoCompleteBox
    {
        public MyAutoCompleteBox()
        {
            this.ThemeClassName = typeof(RadAutoCompleteBox).FullName;
        }

        protected override RadTextBoxControlElement CreateTextBoxElement()
        {
            return new MyAutoCompleteBoxElement();
        }
    }

 public class MyAutoCompleteBoxElement : RadAutoCompleteBoxElement
    {
        protected override Type ThemeEffectiveType
        {
            get { return typeof(RadAutoCompleteBoxElement); }
        }

        public override void CloseDropDown(RadPopupCloseReason reason)
        {
            if (reason == RadPopupCloseReason.CloseCalled)
            {
                if (this.ListElement.SuggestedText != null && this.ListElement.PatternText != null && this.ListElement.IsSuggestionMatched)
                {
                    return;
                }
            }

            base.CloseDropDown(reason);
        }

        protected override RadTextBoxListElement CreateListElement()
        {
            return new RadTextBoxListElement();
        }
    }