so above considering the requirement i have written this blog to make basic introduction about these controls.
Introduction
Presently, ASP.NET has six smart validation controls in .NET
3.5 and .NET 4.0 These controls are called smart valdiation controls because they can perform validation both on client side and server side.
The best thing is ASP.NET
performs browser detection when generating the ASP.NET page and makes decisions
based on the information it has.
This means that if the browser
can support the JavaScript then the validation occurs
on the client-side and If the client cannot support the JavaScript means for
client-side validation, this JavaScript is omitted and the validation occurs on
the server.
Even if client-side validation is initiated on a page,
ASP.NET still performs the server-side validation when it receives the submitted
page, that ensuring security won't be compromised.
Their are Six Server Valiadation controls in Asp.net which are as follows..
RequiredFieldValidator control
this control is used to ensure that the control it has to be used for validate is not empty when the form is
submitted. means suppose their is one Textbox control and you have used RequiredFieldValidator to valiadte that texbox then before submiting the data on server it checks the texbox is not empty.
RangeValidator
Checks that the value of the associated control is within a
specified range. The value and the range can be numerical, a
date or a string. means suppose their is one texbox and you wants to allow only 10 digits or any strings with specified range with help of
RangeValidator then before submiting the data on server it make sure that value is within a spefied range
CompareValidator
Checks that the value of the associated control matches a
specified comparison (less than, greater than, and so on)
against another constant value or control.
RegularExpressionValidator
Checks if the value of the control it has to validate matches the specified
regular expression.
CustomValidator
Allows you to specify any client-side JavaScript validation
routine and its server-side counterpart to perform your own
custom validation logic .
ValidationSummary
Shows a summary with the error messages for each failed
validator on the page (or in a pop-up message box).
I hope this small introduction makes all of you useful and after that soon i will write the one article about the importance of asp.net Validatetars behind the JavaScript with example.
If you have any suggestion regarding this blog then please contact me i will improve content of my blog