HOW TO control ASP.NET's Adaptive Rendering behavior

ASP.NET server controls detect browser type automatically & render differently in modern non-IE browsers like Opera & Firefox. Sometimes this may be undesirable. For instance, a textbox server control with the property AutoCompleteType="Disabled" like so:

<asp:TextBox id="txtSecret" runat="server" AutoCompleteType="Disabled" >


</asp:TextBox>



is rendered as this in IE 6 -

<input name="txtSecret" type="text" autocomplete="off" id="txtSecret" />



whereas it will adaptively render without the autocomplete attribute in Firefox 2.0 like this -

<input name="txtSecret" type="text" id="txtSecret" />



Although the autocomplete attribute is a non-standard HTML property it is supported in Firefox. So how do we make this attribute show up in Firefox?

By setting the @ Page directive's ClientTarget property to "uplevel", we can force the page to render in Firefox (or any other non-IE browser) as it does in IE 6.

<%@ Page Language="C#" ClientTarget="uplevel" %>




You may have to verify that your other tags also render as desired in non-IE browsers.

Related reading:
ASP.NET Web Server Controls and Browser Capabilities
Architectural Overview of Adaptive Control Behavior
Dissecting Adaptive Rendering
A Look at ASP.NET's Adaptive Rendering

Comments

  1. Silvercode1/25/2009 08:03:00 PM

    Well i tried it,
    but its not working for me in firefox...

    ReplyDelete
  2. Silvercode1/25/2009 08:06:00 PM

    Hi,
    i tried ur method.but it doesnt seem to work for me in firefox.

    Any idea why?

    ReplyDelete
  3. Matt Buchner6/04/2009 02:38:00 AM

    What about:

    TextBox ID="txtAnswer" runat="server" width="100%" AutoComplete="OFF"

    ReplyDelete

Post a Comment

Popular posts from this blog

GitHub Copilot Q&A - 1

Image
Key takeaways from the talk in Q&A format - What is GitHub Copilot and how does it work? GitHub Copilot is a suite of tools designed for code completion. It works by analysing the code and comments you type in your IDE and sending that context to GitHub. Copilot then uses OpenAI's language model (in December 2024, it is GPT 4o by default and you can also choose the preview versions of o1-mini & o1-preview if you like) to understand your intent and generate suggestions for code completion. You can then accept, reject, or modify these suggestions. What context does GitHub Copilot consider when making suggestions? Copilot considers the entirety of the file you are currently working on, not just the code from your cursor position upwards. It also analyses the content of other open tabs in your IDE, starting with those closest to the current tab. This helps Copilot focus on the most relevant information. Is it necessary to meticulously manage open tabs for Copilot to work effect...
Read more

Maven Crash Course - Learn Power Query, Power Pivot & DAX in 15 Minutes

Image
In the Maven Crash Course " Learn Power Query, Power Pivot & DAX in 15 Minutes ", Chris Dutton walks through a hypothetical business case while showcasing the power of modern Excel tools like Power Query, Power Pivot and DAX. Power Query is used to extract, transform, and load data from external sources like SQL databases, PDF and CSV files. A relational model is created to join the tables without writing a single formula. Exploratory analysis is done using Power Pivot and Data Analysis Expressions (DAX). Data Analysis Expressions is the language that we can use to define new calculated columns and measures to enhance our Data Model instead of the traditional cell formulas that we'd typically use if our data was stored in worksheets. Pivot Charts and slicers are used to design a simple interactive report that the sales managers can use to analyze revenue trends and product performance.
Read more

Datawrapper Makes Data Beautiful & Insightful

Datawrapper is an online data visualization tool available at datawrapper.de that lets you create charts, maps and tables. Here's the list of the different visualizations you can create - Bar Chart Stacked Bars Grouped Bars Split Bars Bullet Bars Column Chart Stacked Columns Grouped Columns Lines Multiple Lines Area Chart Scatter Plot Dot Plot Range Plot Arrow Plot Election Donut Pie Chart Multiple Pies Donut Chart Multiple Donuts Choropleth map Symbol map Locator map Table It is self-funded by its customers’ subscription revenue. It also provides a good Free Plan .  The Datawrapper “Created with Datawrapper” attribution appears at the bottom of the chart if you use the free plan. However, you retain full copyright to your charts, maps, and tables. To remove the attribution, you’ll need to update to Custom or Enterprise plan. The Datawrapper River is a place to exchange charts and maps with other Datawrapper users. After adding a chart to the River, anyone can use it and customiz...
Read more