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RadNumeric TextBox Negative Rounding

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answered on 08 Jan 2010, 04:03 PM

The AllowRounding is set to “true” and the DecimalDigits is “0” and -34.5 is rounding to -34 not -35.

The results that I am getting above in the first post are happening with the following values…

AllowRounding = true

CultureNativeDecimalSeparator = “.”

DecimalDigits = 0

DecimalSeparator = “.”

GroupSeparator = “,”

GroupSizes = 3

KeepNotRoundedValue = true

NegativePattern = “-n”

PositivePattern = “n”

Are there any other ideas on what to do or should I create a ticket?

Thanks,

Steve

answered on 08 Jan 2010, 09:21 PM

sampleprojectscreenshot.jpg

Created a ticket that has the demo attached. Attached a screen shot to this forum showing the results from the demo project you requested.

Ticket #271898

Thanks,

Steve Fidler

answered on 11 Jan 2010, 09:17 AM

Hello Tim,

Thank you for the runnable demo. I tested with a couple of versions and actually we have fixed the issue for Q2 2009 SP1 (2009.2.826). Please upgrade.

An alternative option is to include or register the following Javascript in the <body> of the web page, so that it overrides the method from the embedded resource script file. You can remove it after upgrading in the future.

if (typeof(Telerik) != "undefined" && typeof(Telerik.Web.UI.NumberFormat) != "undefined")

{

Telerik.Web.UI.NumberFormat.Round = function(number, config)

{

if (!config.get_numberFormat().AllowRounding)

{

var decDig = config.get_numberFormat().DecimalDigits;

if (decDig == 0 && number.toString().indexOf('.') != -1)

{

return number.toString().substr(0, number.toString().indexOf('.') + 1);

}

else if (decDig > 0 && number.toString().indexOf('.') != -1)

{

var parts = number.toString().split('.');

if (parts[1].length > decDig)

{

return parseFloat(parts[0] + '.' + parts[1].substr(0, decDig));

}

else

{

return number;

}

else

{

return number;

}

//Very large and very small numbers are converted to scientific notation

//in textual representation, therefore we degrade to the less precise

//method of rounding

if (number.toString().indexOf('e') > -1)

{

var pow = Math.pow(10, config.get_numberFormat().DecimalDigits);

return Math.round(number * pow) / pow;

}

else if (number.toString().indexOf('.') > -1)

{

var parts = number.toString().split('.');

var integralPart = Math.abs(parseInt(parts[0])); //extract the integral part

var decimalPart = parseFloat("0." + parts[1]); //extract the decimal part

var decimalPartLength = parts[1].length;

var sign = parts[0].charAt(0) == '-' ? -1 : 1; //save the sign

//Return the number itself, if its decimal digits count is equal to

//the DecimalDigits setting in the NumberFormat

if (parts[1].length == config.get_numberFormat().DecimalDigits)

{

return number;

}

//raise the decimal part to power of 10 needed to make it integer

var temp = decimalPart * Math.pow(10, decimalPartLength);

//delete by 10 and round until we leave with the specified

//number of decimal digits

for (var i = 1; i <= decimalPartLength; i++)

{

if (i <= decimalPartLength - config.get_numberFormat().DecimalDigits)

{

temp = Math.round(temp / 10);

}

else

{

temp /= 10;

}

/*

Handles cases when the decimal part if of the form: 0.00546 and we want to

round to 3 decimal digits. At this point, temp would be 0.546 and we still

need to divide twice by ten to get 0.005. The following IF statement

handles cases when the decimal needs to be adjusted in such way

*/

if (temp.toString().indexOf('.') > -1)

{

var fracLengthAfterRounding = temp.toString().split('.')[1].length;

if (fracLengthAfterRounding > config.get_numberFormat().DecimalDigits)

{

var pow = Math.pow(10, config.get_numberFormat().DecimalDigits);

temp = Math.round(temp * pow) / pow;

}

var preliminaryResult = sign * (integralPart + temp);

if (config.get_numberFormat().DecimalDigits > 0 &&

preliminaryResult.toString().indexOf(".") != -1 &&

preliminaryResult.toString().split(".")[1].length > config.get_numberFormat().DecimalDigits)

{

return sign * (parseFloat(integralPart + "." + temp.toString().substr(2)));

}

else

{

return preliminaryResult;

}

else

{

return number;

}

Kind regards,
Dimo
the Telerik team

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