RadNumericTextBox cannot cope with int64 maxvalue

[Craig Wallace]

How can I set up a RadNumericTextBox to cope with the full range of an int64?

I currently have:

<telerik:RadNumericTextBox ID="RadNumericTextBox1" DataType="System.Int64"
            runat="server" Culture="en-US" EnableSingleInputRendering="True"
            LabelWidth="64px" MaxValue="9223372036854775807" MinValue="0">
<NumberFormat ZeroPattern="n" AllowRounding="False" DecimalDigits="0" GroupSeparator=""></NumberFormat>
        </telerik:RadNumericTextBox>

According to MSDN,the maxvalue of int64 is 9223372036854775807.

It appears to be impossible to configure a RadNumericTextBox to accept and return this number.

If you set DataType="System.Int64" and enter 9223372036854775807, the control changes it to 9223372036854776000.

If you try and read back 9223372036854776000 then .DbValue throws an overflowexception, and .Text returns "9.22337203685478E+18".

Does RadNumericTextBox support int64 or not?

Thanks.

[Vasil]

Hi Craig,

RadNumericTextBox works internally with double both Client and Server side, because in JavaScript there is no int64 type.

From Q2 2013 you can use RadMaskedTextBox with Int64(long) mask to populate such values. See more in this help topic:
http://www.telerik.com/help/aspnet-ajax/input-maskedtextbox-masks.html

The MaskedTextBox works with string internally, and the parsing of long is implemented in the control itself, without relying on the JavaScript primary float type.

Regards,
Vasil
Telerik

[Craig Wallace]

Hi Vasil,

Can you provide a code sample illustrating how this situation should work with RadControls?

I.e., A user can enter 9223372036854775807 but cannot enter 9223372036854775808.

Thanks,

Craig

[Vasil]

Hi Craig,

Here is an example:

<telerik:RadMaskedTextBox runat="server" ID="RadMaskedTextBox1" Width="200px"
    Mask="<0...9223372036854775807>">
</telerik:RadMaskedTextBox>

Regards,
Vasil
Telerik