Completed
Last Updated: 24 Oct 2016 14:39 by Greg
Bug details:
OS: Windows 10.
VS: 2015 professional
Telerik version: 2015.2 SP1

Code sample:
<Window x:Class="RadMaskedInputBug.MainWindow"
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
                Title="MainWindow">
    <Grid>
        <telerik:RadTextTimeInput />
    </Grid>
</Window>


The designer crashes and shows only the exception:
InvalidOperationException: Can only base on a Style with target type that is base type 'RadMaskedTextInput'.

UPDATE: 
Telerik has submitted a bug report to Microsoft. You can check its progress here: https://connect.microsoft.com/VisualStudio/feedback/details/2005303/designer-error-can-only-base-on-a-style-with-target-type-that-is-base-type-customcontrol-when-a-style-is-basedon-a-style-of-an-abstract-class 
On 21/12/2015 Microsoft commented that a fix has been submitted and will be available in the next update.
Completed
Last Updated: 04 Oct 2016 14:16 by ADMIN
Completed
Last Updated: 09 Sep 2016 11:48 by ADMIN
Possible workaround:
You can subscribe to the PreviewTextInput event of the control and change the position of the caret if the typed char is the same as the current one.

private void RadMaskedTextInput_PreviewTextInput(object sender, TextCompositionEventArgs e)
        {
            var input = sender as RadMaskedTextInput;
            var currentPosition = input.SelectionStart;

            if (currentPosition != input.Text.Length)
            {
                var currentChar = input.Text[currentPosition];

                if (currentChar != input.Placeholder && currentChar.ToString() == e.Text)
                {
                    input.SelectionStart++;
                }
            }
        }



Available in R3 2016 Release
Declined
Last Updated: 19 Aug 2016 15:24 by ADMIN
In MaskedNumericInput when Mask="p2" you can not delete/replace the minus "-" sign when you select all and type a digit.

With no-mask, select all then typing a digit will remove the negative sign symbol from the text.

As a workaround, users can use Mask="", FormatString="p0" and maskedInput:MaskedInputExtensions.Maximum="0.99".

Second Workaround:

<telerik:RadMaskedNumericInput Mask="p2" Value="-0.25" x:Name="input" PreviewKeyDown="MaskedInput_PreviewKeyDown"/>

        private void MaskedInput_PreviewKeyDown(object sender, KeyEventArgs e)
        {
            string keyString = e.Key.ToString();
            if (keyString.StartsWith("D") && keyString.Length == 2)
            {
                if (this.input.SelectionLength == "-AA %".Length)
                {
                    this.input.ClearCommand.Execute(null);
                }
            }
        }

Edit: Actually this is default behavior for NumericIinput with default Masks #9.2. Select All on negative value then pressing digit does not remove the negative sign.
This is the reason we will mark this bug as Declined. Please use some of the mentioned workarounds.
Please submit a support ticket via our ticketing system if this feature is critical for your business requirement.
Declined
Last Updated: 11 Aug 2016 14:05 by ADMIN
In a DateTimeMaskedInput with Mask=hh:mm tt, if the value is 10:00, the user can't enter 04:00.
=============
Reason for decline: The pattern "hh:mm tt" cannot accept time of type "00:00". You can test this with DateTime.ToString() method which will return "12:00" if you give him time (0hours, 0 minutes) and pattern "hh:mm tt". When typing 0 in the begging of the MaskedDateTimeInput , the control automatically converts 00:00 to 12:00 which is expected.

Workaround: You can use Mask="HH:mm tt" or Mask="t".
Declined
Last Updated: 11 Aug 2016 14:05 by ADMIN
We have a RadMaskedCurrencyInput control defined as:
<telerik:RadMaskedCurrencyInput Margin="20" Culture="se-SE" Placeholder=" "/>.
If we focus the control and press the LeftArrowKey, the cursor is placed on the last (far right) position in the control which is incorrect.
=====
Reason for deletion: You can consider Placeholder = " " as a risky setting that might lead to unpredicted parsing results. We highly encourage you to avoid using it. Instead you can use no-mask. In this scenario you can use:

 <telerik:RadMaskedCurrencyInput Margin="20" Culture="se-SE" Mask="" FormatString="c2"/> 
Completed
Last Updated: 11 Aug 2016 14:05 by ADMIN
In the Currency and NumericInput controls, clear the sign of the value on SelectAll in order to allow the user to enter a negative value again. At the moment when everything in the controls is selected, the minus key only toggles the sign of the value. Instead you should be able to select a negative value and replace it with another negative value by entering the minus key and the new value.

MinusKeyCustomizations demo is added in our SDK: https://github.com/telerik/xaml-sdk/tree/master/MaskedInput/MinusKeyCustomizations 
Completed
Last Updated: 11 Aug 2016 14:04 by ADMIN
Implement a behavior to allow dymanically changing the FormatString precision specifier
=====
Reason to mark it Completed: Added the "Dynamic Format String" sample in SDK. Will be live with Q2 2014 (mid June)
Declined
Last Updated: 11 Aug 2016 14:04 by ADMIN
ADMIN
Created by: Telerik Admin
Comments: 0
Category: MaskedInput
Type: Bug Report
2
Improve the FlowDirection functionality - at the moment setting the flow direction to RightToLeft, partly inverts the Mask value thus messing it up.

We are closing this issue as we do not think this is a bug. MaskedInput's Value , Mask and Text properties are not dependent on the FlowDirection property.
The issue the bug is originally logged to is easy to reproduce with TextBox only.
 <TextBox Text="10-Jul-2015" FlowDirection="RightToLeft" /> will produce the string "Jul-2015-10" but not the reversed string of "10-kul-2015". This is how is awpf framework implementation.
Completed
Last Updated: 11 Aug 2016 14:04 by ADMIN
Pasting values in the controls, clears the current value in order to paste the new content
Completed
Last Updated: 11 Aug 2016 14:04 by ADMIN
ADMIN
Created by: Telerik Admin
Comments: 0
Category: MaskedInput
Type: Bug Report
2
We set the AutomationProperties.Name property of a RadMaskedInput control.
This property is not applied in the control (if checked with the UI Spy) the Name automation property is not the set one, but the control's value.
This forces the MS Narrator to read the value of the control instead of the desired one.
Completed
Last Updated: 11 Aug 2016 14:04 by ADMIN
Change the InputBehavior when deleting digits after the decimal symbol: For example if the cursor position is marked with '|': Enter: 1234,56|78  (press 'del') Result: 1234,560|8 - change this behavior so that the result can be 1234,56|8.

=====

We can split the request into 2 desired results. Input: 1234.56|78. Pressing Delete

1) Produces Value 1234.5680 but NOT 1234.5608

Solution: Can be achieved with using No-Mask, FormatString and overriding MaskedNumeric/Currency Input and the protected method ReplaceChar. This is demonstrated in the attached sample.

2) (1) is True + Last zero is removed => 1234.568 but NOT 1234.5680

Solution: 2 is tightly coupled with changing the FormatString or Mask dynamically. There is no way to see number 123.456 if the Mask is "x.4" or the Mask is "" + format string is "n4". To see 3 digits only after the decimal point you need to change the Mask to "x.3" or the FormatString (in no-masked scenario) to "n3". This cannot be built-in feature because it changes a public property set by the client. So, this is custom behavior, it is also demonstrated in the SDK demo DynamicFormatString (it is pushed in GitHub with Q2 2014 Release)
Declined
Last Updated: 11 Aug 2016 14:04 by ADMIN
InputLanguageManager does not work in MaskedInputControls
====

Reason for deletion: The bug is logged for RadMaskedTextBox and it will be removed from our suite from Q2 2014.
Declined
Last Updated: 11 Aug 2016 14:04 by MohanRajP - PmR
Possibility to enter numbers with non-fixed number of digits after the decimal separator.
The SDK sample DynamicFormatString demonstrates such behavior.

Here is a link to it = > https://github.com/telerik/xaml-sdk/tree/master/MaskedInput/DynamicFormatString

We are marking this feature request as Declined - we won't introduce built-in logic for it. 
Declined
Last Updated: 11 Aug 2016 14:04 by Michael
MaskedInput: The cursor of the Mouse is  Caret when it is over the built in ScrollViewer
====
Reason for deletion: The bug is logged for RadMaskedTextBox and it will be removed from our suite from Q2 2014.
Declined
Last Updated: 12 Jul 2016 14:47 by ADMIN
It would be really useful to be able to specify a maximum number of significant figures for Telerik RadMaskedNumericInput as this was requested by a client.
Completed
Last Updated: 07 Jul 2016 14:25 by Ivo
When setting the CurrencyDecimalSeparator to "," the MaskedCurrencyInput shows ".," (decimal point is not expected).
Similar issues with MaskedNumericInput.
Setting both CurrencyDecimalSeparator and CurrencyGroupSeparator to "." also produces issues.

Possible workaround:
 public class CustomCurrency: RadMaskedCurrencyInput
    {
        protected override void SetSeparators(params Telerik.Windows.Controls.MaskedInput.Separator[] separatorsArray)
        {
            base.SetSeparators(separatorsArray);
            this.Separators.Add(new Separator(this.Culture.NumberFormat.NumberDecimalSeparator, true));
        }
    }

The fix will be available in lib for 11 July 2016.
Completed
Last Updated: 14 Jun 2016 07:52 by ADMIN
You have the following scenario.
The UpdateValueEvent property is set to "LostFocus" and set no mask ( Mask= "").

When the input box is focused, press the minus sign key. You can see the that the minus is showing as expected. 

Then press a number and the "-" (minus) disappear. By pressing number key again the minus appears again.

A workaround: 
Setting the UpdateValueEvent property to PropertyChanged


Available in R2 2016 SP
Completed
Last Updated: 01 Apr 2016 14:08 by ADMIN
Mask="" (no-mask) and FormatStyring =n3 or n4 , n5.

Value is 0.

Typing 0 then ".", then 0, then 0, then 5 produces 0.5000 but it should produce 0.0050.

Fix available in LIB Version 2016.1.404.
Declined
Last Updated: 16 Mar 2016 19:33 by Rousseau
ADMIN
Created by: Pavel R. Pavlov
Comments: 9
Category: MaskedInput
Type: Feature Request
11
Currently, performing consecutively paste operation does not work like in TextBox. In TextBox the strings are concatenated but in MaskedTextInput the caret is in the beggining and only the first paste is successful.