Xmal textbox Validation in SilverLight

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Please show me a way to check input textbox data is 0-9 only.
I made like this and it is OK.
<textbox keydown="TextBox_KeyDown" name="txtbox" width="250" height="20" grid.row="4" grid.column="2" horizontalalignment="Left" margin="4">

C#

private void TextBox_KeyDown(object sender, KeyEventArgs e)
        {
            bool isDigit = e.Key >= Key.D0 && e.Key <= Key.D9;

            if (isDigit) { }
            else
                e.Handled = true;

}

But I want to use "DecimalDigit ::= '0'-'9'" in xaml file and so it is a little difficulty for me.
Thanks in advance...

Posted 12-Aug-13 1:27am

chitswemyint

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Christian Amado · Answer 1 · 2013-08-31T04:08:00

Hi chitswemyint, there is many ways to do that.
I have one in my mind right now:
1. Extend the TextBox class.
2. Add a property called "Validation".
3. Add a DependencyProperty that works with Validation property.
4. Create a method that use Regex to validate your textbox.
5. in your XAML you can add the Validation property as you wish.

Happy coding.

Regards.