barcode vb.net Ajax: A Beginner s Guide in Java

Maker Data Matrix 2d barcode in Java Ajax: A Beginner s Guide

Ajax: A Beginner s Guide
Data Matrix 2d Barcode Creator In Java
Using Barcode generator for Java Control to generate, create Data Matrix 2d barcode image in Java applications.
ECC200 Decoder In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
Figure 8-7
Barcode Drawer In Java
Using Barcode encoder for Java Control to generate, create bar code image in Java applications.
Barcode Scanner In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
outerHTMLhtml in action
Data Matrix 2d Barcode Maker In C#
Using Barcode generator for .NET Control to generate, create Data Matrix image in .NET applications.
Making Data Matrix ECC200 In VS .NET
Using Barcode generator for ASP.NET Control to generate, create Data Matrix ECC200 image in ASP.NET applications.
<body> <center> <h1 id = header onclick = "changeHeader()"> Changing HTML With the outerHTML Property </h1> Click the above header to make it change </center> </body> </html>
Generating Data Matrix 2d Barcode In .NET
Using Barcode creator for VS .NET Control to generate, create DataMatrix image in .NET applications.
Data Matrix 2d Barcode Creator In VB.NET
Using Barcode generation for VS .NET Control to generate, create DataMatrix image in Visual Studio .NET applications.
You can see outerHTMLhtml doing its thing in Figure 8-7 When the user clicks the <h1> header in Figure 8-7, the changeHeader function changes it into the <h3> header that you see in Figure 8-8, using the outerHTML property Nice
Encoding Code 3/9 In Java
Using Barcode generator for Java Control to generate, create Code 39 Extended image in Java applications.
EAN / UCC - 14 Generator In Java
Using Barcode creation for Java Control to generate, create GS1 128 image in Java applications.
Figure 8-8
Make Bar Code In Java
Using Barcode encoder for Java Control to generate, create bar code image in Java applications.
Creating ECC200 In Java
Using Barcode creator for Java Control to generate, create DataMatrix image in Java applications.
Changing an <h1> header to an <h3> header
Generating Code 2/5 In Java
Using Barcode generation for Java Control to generate, create Code 2/5 image in Java applications.
Data Matrix Creation In .NET Framework
Using Barcode creator for ASP.NET Control to generate, create DataMatrix image in ASP.NET applications.
8:
European Article Number 13 Encoder In Visual C#
Using Barcode generation for .NET Control to generate, create UPC - 13 image in .NET framework applications.
Print ECC200 In None
Using Barcode encoder for Office Excel Control to generate, create Data Matrix ECC200 image in Office Excel applications.
Handling Dynamic HTML with Ajax
ECC200 Reader In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
UCC-128 Maker In .NET
Using Barcode printer for Reporting Service Control to generate, create EAN / UCC - 14 image in Reporting Service applications.
When it comes to dynamic HTML, you re going to find that Internet Explorer has more functionality than any other browser and that s true of the topics thus far in this chapter as well: of the dynamic HTML properties we ve been discussing, only innerHTML is supported in Firefox; all the others (innerText, outerText, and outerHTML) are supported in Internet Explorer only In fact, there s even more dynamic HTML built into Internet Explorer that will let you alter the contents of a web page, as you might do in Ajax-enabled applications Besides the methods and properties we ve discussed in this chapter, you can also use text ranges
Bar Code Maker In VS .NET
Using Barcode generation for ASP.NET Control to generate, create barcode image in ASP.NET applications.
Create Data Matrix In Visual C#.NET
Using Barcode creation for .NET Control to generate, create Data Matrix 2d barcode image in Visual Studio .NET applications.
Using Text Ranges in Internet Explorer
In Internet Explorer, you can address sections of text and handle them using text ranges There are all kinds of methods built into text ranges, but we ll only take a look at a simple example in this chapter because text ranges are only available in Internet Explorer Here s an example, textRangeshtml, that places text into a text range and then pastes HTML over that range to replace it This example starts with a button that, when clicked, calls a function named changeText:
<body> <center> <h1> Replacing Text With Text Ranges </h1> </center> <input type="button" value="Click here" onclick="changeText()"> <br> <br> <div id="div1"> Click the button to change this text </div> </body>
In the changeText function, we create a new text range for the document:
<script language="JavaScript"> function changeText() { var range = documentbodycreateTextRange(); } </script>
Ajax: A Beginner s Guide
We then create an object corresponding to the <div> element we want to overwrite:
<script language="JavaScript"> function changeText() { var range = documentbodycreateTextRange(); var div = documentgetElementById("div1"); } </script>
Next, we move the text range so that it encompasses the <div> element:
<script language="JavaScript"> function changeText() { var range = documentbodycreateTextRange(); var div = documentgetElementById("div1"); rangemoveToElementText(div); } </script>
Finally, we can use the new text range s pasteHTML method to paste some text, replacing the text that s in the <div> now ( Click the button to change this text ) to the new text ( You have successfully clicked the button ):
<script language="JavaScript"> function changeText() { var range = documentbodycreateTextRange(); var div = documentgetElementById("div1"); rangemoveToElementText(div); rangepasteHTML("You have successfully clicked the button"); } </script>
8:
Here s the whole example, textRangeshtml:
Handling Dynamic HTML with Ajax
<html> <head> <title> Replacing Text With Text Ranges </title> <script language="JavaScript"> function changeText() { var range = documentbodycreateTextRange(); var div = documentgetElementById("div1"); rangemoveToElementText(div); rangepasteHTML("You have successfully clicked the button"); } </script> </head> <body> <center> <h1> Replacing Text With Text Ranges </h1> </center> <input type="button" value="Click here" onclick="changeText()"> <br> <br> <div id="div1"> Click the button to change this text </div> </body> </html>
You can see this example in Figure 8-9 When you click the button in this example, the code pastes new text over the text range enclosing the <div> element, and you can see the result in Figure 8-10 Text ranges are powerful tools, but you should probably stay away from them in Ajax applications unless you re sure that you re going to be dealing only with Internet Explorer; otherwise, you ll have to duplicate the same operation in code for other browsers
Ajax: A Beginner s Guide
Figure 8-9
textRangeshtml in action
As you know, you can configure your page with data downloaded using Ajax And you can even write new HTML to the page to add controls as needed for example, you might be downloading house listings from a real estate site, and need to create buttons so the user can e-mail the listing agent Creating new HTML is a very common thing to do in Ajax, and as you ve seen, you can create that new HTML just by writing it to the page On the other hand, if you have a lot of HTML to write, it can get confusing There is a special dynamic HTML method, createElement, you can use to create new HTML elements, saving you time if you have to create a lot of new elements createElement has the added benefit of working in both Internet Explorer and Firefox-type browsers
Copyright © OnBarcode.com . All rights reserved.