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Stop auto-fill in browsers for textbox

Posted By : Shailendra Chauhan, 26 Aug 2012
Updated On : 24 Jun 2014
Total Views : 17,503   
Keywords : stop auto-complete in browser for textbox or form by programming,prevent auto-fill in browser,prevent auto-complete,hide auto-fill,hide auto-complete in browser

Today’s browsers like Chrome, Firefox, Internet Explorer and Safari has functionality of auto complete values in TextBoxes. If you have enabled this features in your browser, then each and every time when you start to enter value in TextBox you get a drop down of prefilled values in that TextBox. This feature of browser can be disabled by the programming for a specific web form like payment form and other confidential information form of a web application.

In chrome browser, we can enable auto-fill as shown below:

Suppose we have a below form for online payment of product by credit card or debit card then it is mandatory to stop auto complete functionality of browser so that browser doesn’t save the confidential information of a customer’s credit card or debit card.

We can turn off auto-fill for our complete form by setting autocomplete attribute value to off as shown below:

 <form id="Form1" method="post" runat="server" autocomplete="off">

We can also turn off auto-fill for a particular TextBox by setting autocomplete attribute value to off as shown below:

 <asp:TextBox Runat="server" ID="txtConfidential" autocomplete="off"></asp:TextBox> 

We can also do this from code behind also like as:

 txtConfidential.Attributes.Add("autocomplete", "off"); 

After doing one of above code you will see that there is no auto-fill.


In this article, I explain how can you stop auto-complete in TextBox by programming. I hope you will use this trick in your web form. I would like to have feedback from my blog readers. Please post your feedback, question, or comments about this article.

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About the Author
Hey! I'm Shailendra Chauhan full-time author, consultant & trainer. I have more than 6 years of hand over Microsoft .NET technologies and other web technologies like JavaScript, AngularJS, NodeJS etc. I am an entrepreneur, the founder & chief editor of and I am author of most popular e-books for technical Interview on ASP.NET MVC Interview Questions and Answers & AngularJS Interview Questions and Answers & LINQ Interview Questions and Answers.
I have delivered 100+ training sessions to professional world-wide over Microsoft .NET technologies such C#, ASP.NET MVC, WCF, Entity Framework and other mobile technologies such Ionic, PhoneGap, Corodva. Read more...
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