ASP.NET Interview Questions and Answers (1544) - Page 7

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Validation Controls are non-visible controls?

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Which of the following Regular expression is used to validate a 10 digit phone fied?

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If we remove a web.config file from the application , is this application will work?

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ow to send XML file on server using HTTP protocol?

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What data types do the RangeValidator control support?

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Where does ASP.Net stores sessionIDs by default?

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Name of the event that is not fired during page cycle?

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Name the property to access Referring page URL?

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Is IIS Mandatory to develop a Web application in ASP.NET 2.0?

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Which type of control Span is in ASP.NET

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What is the default authentication system in asp.net web application?

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What is the Purpose of Server.MapPth?

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What is Size Limit for Cookies data?

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What is the Extension of web Service ?

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Is finally block executed if there is no exception?

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Which Function is used to count more than two billion rows in a table?

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Is it Possible to create more than one machine config file.

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What is the name of base class for .NET

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What Are The Difference Between AutoEventWireup="true" and AutoEventWireup="False"?

When value of the AutoEventWireup attribute is set to false, one must manually hook up events to event handlers.

When value of the AutoEventWireup attribute is set to true, the ASP.NET page framework can automatically raise events.

What is Difference between Callbacks and Postback in ASP.NET?

Callback : It is a way to send a request to the web page from the client script. Postback is an expensive call with processing overhead. In callback a client function sends a request and a special marked method is invoked on the
server. It does the processing & returns the value which is received by another client function to process the result. To have client side callbacks, the page has to implement ICallbackEventHandler & implement functions RaiseCallBackEvent & GetCallBackResult.

PostBack: Postback is the event which sends the form data to the server. The server processes the data & sends it back to the browser. The page goes through its full life cycle & is rendered on the browser. It can be triggered by using the
server controls.