[Solved] RadNumericBox - Too much precision

[Ben]

I have an issue that I just can't figure out.

Using the RadNumericBox's increase or decrease button, then entering the text box change value.

I have included screenshots.

And here is the XAML.

<Input:RadNumericBox x:Name="rnDD" Grid.Row="2" Grid.Column="0" LargeChange="1" Maximum="24" SmallChange="0.1" Margin="5,5,5,5" VerticalAlignment="Center" HorizontalAlignment="Center" MinWidth="0" ValueFormat="{}{0,0:N1}"/>

1.0 becomes: 1.00000001490116

Thanks

[Rosy Topchiyska]

Hi Ben,

Thank you for contacting us.

The RadNumericBox displays the actual value of its Value property when you focus the TextBox of the control. The ValueFormat property is used to format the value when the TextBox is not focused, but it does not affect the actual value. You can use the RadNumericBox.ValueChanged event to perform some sort of value coercing; or if your control is bound to a view model, then you can perform the coercing there.

Here is a sample of how to use the ValueChanged event to round the value:

private void NumericBox_ValueChanged(object sender, EventArgs e)
{
    var nb = sender as RadNumericBox;
    if (nb.Value != null)
    {
        var value =(double)nb.Value;
        var rounded = Math.Round(value);
        if (rounded != value)
        {
            nb.Value = rounded;
        }
    }
}

I hope this helps. Please, let us know if you have further questions.

Regards,
Rosy Topchiyska
Telerik