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How many validation controls are supported in ASP.NET AJAX 4.0?

The following validation controls are supported in ASP.NET AJAX 4.0:

  •  FilteredTextBoxExtender : This validation is used to apply filtering to a text box. 
  •  MaskedEditExtender and MaskedEditValidator : These validation controls are used to prevent a user to enter only a particular pattern of characters in the TextBox. 
  •  ValidatorCalloutExtender : This validation is used to display a balloon tooltip containing the error message by attaching the ASP.NET validators. 
  •  NoBot : It restricts the input forms automatically to be filled by spam/bot and used to ensure that the user is not a computer machine by the automated Public Turing test. 
  •  PasswordStrengthExtender : It is used to find the strength of the password entered in the text box by checking the different strength related parameters.

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