RadNumericUpDown lets you type beyond its maximum value

[Sanket Singhvi]

Hi,

I set the maximum on RadNumericUpDown but using keyboard I can type beyond maximum value.

Regards
Sanket

[Konstantina]

Hello Sanket,

Thank you for contacting us.

This is by design. The Maximum property is not meant to restrict the user's input when typing in the TextBox of the NumericUpDown only when using the arrows.

Hope this information helps. If you have further questions please let us know.

All the best,
Konstantina
the Telerik team

[Tim]

OK, so how do you restrict entry? The MS textbox has a MaxLength property. What is the equivalent for the RadNumericUpDown?

[Konstantina]

Hi Tim,

As a work-around I can suggest you to hook to the PreviewTextInput event and check the length of the typed-in text and if longer mark the event handled, for example:

private void RadNumericUpDown_PreviewTextInput(object sender, TextCompositionEventArgs e)
{
    var num = sender as RadNumericUpDown;
    if (num.ContentText.Length > 3)
    {
        e.Handled = true;
    }
}

Hope this helps. If you have further questions please let us know.

Kind regards,
Konstantina
the Telerik team

[maks]

<telerik:RadNumericUpDown>
                                <telerik:RadNumericUpDown.Resources>
                                    <Style TargetType="{x:Type TextBox}">
                                        <Setter Property="MaxLength" Value="2" /> 
                                    </Style>
                                </telerik:RadNumericUpDown.Resources>
                            </telerik:RadNumericUpDown>

[Prashanth]

Hi Konstantina,

I restricted the length of text as u said but I have one more requirement i.e I don't want to allow greater than the particular number when user typing in the TextBox of the RadNumericUpDown.

Eg: NumericUpDown textbox will allow only less than the '300'

Please suggest if any approach to solve.

 

Thanks and Regards

M.Prashanth Reddy

 

 

 

[Martin]

Hi Prashanth,

To achieve the desired behavior you can parse the ContentText property to double and if the value is greater than 300 to handle the preview event.

I hope that this helps. If you have further questions please let us know.


Regards,
Martin Vatev
Progress Telerik