Hi,

Is there a way to hide all the memory and function buttons on the calculator so that I can use it as a numeric keypad entry (for a touch screen application). The MemoryButtonsVisibility property does not seem to work and cannot find any similar of the function buttons.

Renier

Hi,
I've to provide a RadCalculatorPicker which allows to enter a number without opening the calculator.
I cannot find any property which enables this functionality.

Thanks for your help!

Regards,

- Tobias

Hi Telerik Team,

I have some users with complaints about the calculator control.  If I start to type in the field (the calculator popup is closed) all of the number show up until I hit the decimal.  The decimal and any numbers after that do show in the textbox until you leave the field.  This seems like very odd behavior to me.  Why can I simply key in 125.00 and that show up in the box from typing it?  If I actually need to do some calculations, then I can launch the calculator.  I have looked at your demos and it works this way there as well.

I don't want to switch to a MaskedTextEditNumeric control because the users do use the calculator portion.  They just want to be able to key in a number and all of the numbers, decimal, and any numbers after the decimal to appear as they are typing them.

What is the reasoning behind this behavior and can it be changed or fixed?

Thanks!!

Hello!

I'd like to know if the following behaviors are possible with radcalculatorpicker control:

1) I wanted to use this control only as a numeric keypad so I changed its style template to show only the numeric keys, display window and the decimal sign. However, its operations are still functional on the keyboard (pressing 1 + 1 in the keyboard displays a sum result). I would like this operations to disable so only pressing of numbers can be done.
2) I would like the "Enter" key event to be caught so I can put my own logic at the same time close the dropdown for the keypad.

Is there possible solutions here? Or do you have a control that I can use such that it can be used in the gridview and when the column is numeric I can display a numpad where user can enter values from. My application is to run on a touchscreen so large buttons are necessary, that is why I needed a numpad for numeric columns. The numericupdown control won't do since it has small updown button hence will be difficult to use.

Hoping for your assistance.


Thanks!

Hi!
I don't know if it's on purpose but there's no validation on the control RadCalculatorPicker.
I'd like my users to be able to use the calculator but  to have some restrictions on the values (such as only positives figures).
When I use a TextBox, the validation works successfully (red border around with the tooltip) but not with this control.
Any idea?

Is there a key to press that closes the RadCalculatorPicker?

I would like to be able to make the picker close itself when the user presses Enter.

I tried catching the KeyUp and KeyDown events, but they only seem to apply to the button that launches the picker. Once the picker is visible, the key events no longer fire.

The only way to close the picker is to click on another control.

Is there a way I can hook into this?

Thanks

Is there an easy way to access the history on the RadCalculator control? I'm looking to save the history after the the final value of the calculation is calculated.

Currently to achieve this, I have created a new control that derives from RadCalculator. I've overridden OnApplyTemplate so I can pull the HistoryTextBox out of the control template, which gives me access to the history text. This gives rise to other problems, such as the fact that the history text is immediately nulled out when the equals button is clicked or the enter key is pressed.

Additionally, is there any way to intercept key events in the RadCalculator? I'd specifically like to be able to tell when a user presses the enter key. ValueChanged doesn't work, since it fires for every intermediate calculation, and obviously doesn't fire when the value doesn't change (such as adding zero).

In case it's unclear, the "History" I'm trying to access is the history seen in this visual structure: RadCalculator Visual Structure

I'm attempting to use a RadCalculatorPicker, binding it to a property of type Nullable<decimal>. The following exception occurs at bind time. Is there something I can do to avoid this?
Thanks,
Chuck

System.Windows.Data Error: 'MS.Internal.Data.DynamicValueConverter' converter failed to convert value 'null' (type 'null'); BindingExpression: Path='Dto.JobOrder.BaseMin' DataItem='ViewModels.JobOrderDetailViewModel' (HashCode=20470679); target element is 'Telerik.Windows.Controls.RadCalculatorPicker' (Name='uxMinSalary'); target property is 'Value' (type 'System.Decimal').. System.InvalidOperationException: Can't convert type null to type System.Decimal.
   at MS.Internal.Data.DynamicValueConverter.Convert(Object value, Type targetType, Object parameter, CultureInfo culture)
   at System.Windows.Data.BindingExpression.ConvertToTarget(Object value).