RadMaskedNumericInput showing only fixed length given in the Mask

[Lakshmi]

Hi, 
  
   I have been using the RadMaskedTextBox with MaskType "Numeric" and am getting an issue "Input string not in correct format" when following the below steps:

1) Enter a number
2) Modify the number to a negative value (-)
3) Delete the number using BackSpace
 
  i.e., Exception thrown with negative symbols.

As a workaround to this issue , telerik forums suggested to use RadMaskedNumericInput instead. But there comes another issue that I have to give fixed number of digits only in the Mask.

My concerns are :-

1) How to give the mask if the maximum number of numeric places is 18 and decimal digits as 2 ( say for eg., 123456789122345567.55)? 
2) Is there any alternative other than giving mask?
3) Can I give negative symbols as well ? If so, will it figure out the exception thrown with negative symbols.

Please help to figure out this issue..

Thanks

[Petar Mladenov]

Hello Lakshmi,

I think you can use the following configuration:

<telerik:RadMaskedNumericInput
           Mask=""
           FormatString="n2"
           maskedInput:MaskedInputExtensions.MaxTextLength="18"
           />

where maskedInput namespace is:

xmlns:maskedInput="clr-namespace:Telerik.Windows.Controls.MaskedInput;assembly=Telerik.Windows.Controls.Input"

This will enable the following:

• No underscores - because the Mask is "" (no-mask functionality)
• 18 digits max on the left of the decimal place
• group separators will show on the go while typing
• FormatString n2 determines the number of digits on the right of the decimal symbol

We hope this is exactly what you need.

Regards,
Petar Mladenov
Telerik

[Lakshmi]

  Thanks for your timely support.

I have 2 more queries in this section:-

1) Why the digits after decimal places not getting updated or inserted when we enter maximum number of digits( say 18) to the left of the decimal places.
2) Also , how to replace the digits while entering similar to RadMaskedTextBox ?
i.e., it is not replacing digits as we are entering instead we need to select the digits that we need to replace.


 Please help !!

[Petar Mladenov]

Hello Lakshmi,

MaskTextLength is mostly designed to work with RadMaskedTextInput and I have to admit that I have mislead you. In NumericInput it currently works the following way - if the Value is about to exceed the max text length you have set, the value changing is prevented. That is why typing a digit is not allowed - because inserting digit will make the Value bigger than 6 symbols. On the other hand, actual ReplaceMode does not work in No-Mask scenarios with MaxTextLength set - we will try to improve this behavior in some of our future releases.
However, sice you need to use > 15 digits we want to suggest you to use the RadMaskedCurrencyInput which works with decimals. You can try the following setting:

<telerik:RadMaskedCurrencyInput
                 Mask="#18.2"
                 AutoFillNumberGroupSeparators="False"
                 IsCurrencySymbolVisible="False"
                 Placeholder=" "/>

Please let us know if this is suitable for you.

Regards,
Petar Mladenov
Telerik