Ajax contorl toolkit FilteredTextBox Demonstration
FilteredTextBox Demonstration
FilteredTextBox is an extender which prevents a user from entering invalid characters
into a text box. Note that since this effect can be avoided by deactivating JavaScript,
you should use this extender as a convenience for your users, but you must never expect
that the data being sent to the server consists of "valid" chars only.
The math-symbols example above is initialized with this code:
<ajaxToolkit:FilteredTextBoxExtender ID="ftbe" runat="server"
TargetControlID="TextBox3"
FilterType="Custom, Numbers"
ValidChars="+-=/*()." />
- TargetControlID - The ID of the text box for this extender to operate on
- FilterType - A the type of filter to apply, as a comma-separated combination of
Numbers, LowercaseLetters, UppercaseLetters, and Custom. If Custom is
specified, the ValidChars field will be used in addition to other settings such as Numbers.
- FilterMode - A the filter mode to apply, either ValidChars (default) or
InvalidChars. If set to InvalidChars, FilterType must be set to Custom; if set to ValidChars,
FilterType must contain Custom.
- ValidChars - A string consisting of all characters considered valid for the text
field, if "Custom" is specified as the filter type. Otherwise this parameter is ignored.
- InvalidChars - A string consisting of all characters considered invalid for the text
field, if "Custom" is specified as the filter type and "InvalidChars" as the filter mode.
Otherwise this parameter is ignored.
- FilterInterval - An integer containing the interval (in milliseconds) in which
the field's contents are filtered, defaults to 250.
Ajax control toolkit FilteredTextBox example with demo in asp .net
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