java code 39 barcode Replace the Original Data with the Sorted Data in Java

Generator ECC200 in Java Replace the Original Data with the Sorted Data

Replace the Original Data with the Sorted Data
Encoding Data Matrix In Java
Using Barcode encoder for Java Control to generate, create ECC200 image in Java applications.
Recognize Data Matrix 2d Barcode In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
Once the <TR> tags have all been sorted, the only remaining task is to copy them back into the table structure This is a little trickier than the list example because you re replacing an entire structure of nodes and not just a text string To make things a little easier, the code removes any existing <TBODY> tag and replaces it with a new, empty one:
Barcode Generation In Java
Using Barcode creator for Java Control to generate, create bar code image in Java applications.
Bar Code Reader In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
oTableremoveChild(oTBody); oTBody = documentcreateElement("TBODY"); oTableappendChild(oTBody);
Encode Data Matrix In C#.NET
Using Barcode encoder for .NET Control to generate, create Data Matrix ECC200 image in .NET framework applications.
Data Matrix 2d Barcode Maker In Visual Studio .NET
Using Barcode drawer for ASP.NET Control to generate, create Data Matrix 2d barcode image in ASP.NET applications.
Once the <TBODY> has been replaced, the function iterates over the array of sorted <TR> tags and appends each one, child tags and all, to the new <TBODY>:
ECC200 Maker In Visual Studio .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create ECC200 image in .NET framework applications.
Printing Data Matrix 2d Barcode In VB.NET
Using Barcode creator for Visual Studio .NET Control to generate, create ECC200 image in VS .NET applications.
for (i=0; i< numRows; i++) { oTBodyappendChild(theSortedRows[i]); }
DataMatrix Creation In Java
Using Barcode drawer for Java Control to generate, create Data Matrix 2d barcode image in Java applications.
Printing GTIN - 128 In Java
Using Barcode drawer for Java Control to generate, create GS1 128 image in Java applications.
That s it! The new table rows are in place, and the screen is updated to show the newly sorted table
Generating UCC - 12 In Java
Using Barcode creation for Java Control to generate, create Universal Product Code version A image in Java applications.
2D Barcode Encoder In Java
Using Barcode creation for Java Control to generate, create Matrix 2D Barcode image in Java applications.
10: Client Processing of Data-Driven Documents
UPC - E0 Printer In Java
Using Barcode generation for Java Control to generate, create UPCE image in Java applications.
Creating European Article Number 13 In Java
Using Barcode drawer for Android Control to generate, create EAN / UCC - 13 image in Android applications.
Post-Processing Server-Generated Documents
Barcode Decoder In Visual Basic .NET
Using Barcode reader for .NET framework Control to read, scan read, scan image in .NET framework applications.
UPC A Drawer In None
Using Barcode printer for Excel Control to generate, create UPC Code image in Excel applications.
So far, the examples you ve seen have all dealt with static HTML pages whose contents were known at the time the processing script was written However, there will be times when your application will need to perform post-processing of documents that were created by a script on the server For example, you might segment your application to split the responsibilities for the data presentation between the server, which will extract data from a database and generate the basic HTML, and the client, which will perform data transformation and display locally This type of technique is often referred to as screen-scraping, which means post-processing data that has already been generated for presentation by another source Let s use the document in Listing 10-5 as an example of the kinds of postprocessing you can do within the client This listing contains a table that represents the closing prices of the stock ticker for an imaginary company, JOEM, for seven days Assume that this document was created by a server-side script that reads the prices from a database and generates the raw HTML output for display in the browser
Creating European Article Number 13 In VB.NET
Using Barcode printer for Visual Studio .NET Control to generate, create GS1 - 13 image in .NET framework applications.
Encode ANSI/AIM Code 128 In Objective-C
Using Barcode generator for iPhone Control to generate, create Code 128 image in iPhone applications.
Listing 10-5
Encode GS1 - 12 In None
Using Barcode maker for Software Control to generate, create UPC-A Supplement 5 image in Software applications.
Decode Code 128B In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
Server-Generated HTML Page
<html> <head> <title>Screen Scraping Example</title> <script src="CalcStockDatajs"></script> </head> <body bgcolor="#FFFFFF" onLoad="calcStockData('stockData')"> <table id="stockData" border="1" width="193"> <thead> <tr> <th colspan="2">JOEM Historical Prices</th> </tr> <tr> <th>Date</th> <th>Price</th> </tr> </thead> <tbody> <tr> <td>4-1-02</td> <td>2535</td> </tr> <tr> <td>4-2-02</td>
The Document Object Model: Processing Structured Documents
<td>2802</td> </tr> <tr> <td>4-3-02</td> <td>3145</td> </tr> <tr> <td>4-4-02</td> <td>2934</td> </tr> <tr> <td>4-5-02</td> <td>2710</td> </tr> <tr> <td>4-6-02</td> <td>2400</td> </tr> <tr> <td>4-7-02</td> <td>2535</td> </tr> </tbody> </table> <p>Share Price Calculations:</p> <form> <table border="0" width="337"> <tr> <td>The highest closing price was:</td> <td> <input type="text" name="txtHigh" id="txtHighField"> </td> </tr> <tr> <td>The lowest closing price was: </td> <td> <input type="text" name="txtLow" id="txtLowField"> </td> </tr> <tr> <td>The average 7-day price was:</td> <td> <input type="text" name="txtAvg" id="txtAvgField"> </td> </tr> </table>
10: Client Processing of Data-Driven Documents
</form> </body> </html>
Suppose further that you wanted to perform some post-processing on the document, such as calculating the high and low closing prices for the week, along with the average stock price over the seven-day time frame The results would then be displayed in a results table below the stock table, as shown in Figure 10-4 To accomplish this, you would need to extract the data from the raw HTML and perform the calculations on the client side The JavaScript code in Listing 10-6 calculates the low and high prices and the seven-day average and inserts the results into the text form fields in the results table
Figure 10-4
The stock table with client-side calculations
The Document Object Model: Processing Structured Documents
Listing 10-6
CalcStockDatajs
function calcStockData(idTable) { var highPrice=00, lowPrice=1000000, avgPrice=00; var oTable = documentgetElementById(idTable); var i=0; // get the rows from the table body var oBODY = oTablegetElementsByTagName('TBODY')[0]; var aTRs = oBODYgetElementsByTagName('TR'); for (i=0; i < aTRslength; i++) { // for each row, get the price for the day var thePrice = parseFloat(aTRs[i]getElementsByTagName('TD')[1]firstChilddata); if (thePrice < lowPrice) lowPrice = thePrice; if (thePrice > highPrice) highPrice = thePrice; avgPrice += thePrice; } // store the results in the table documentgetElementById("txtHighField")value=highPrice; documentgetElementById("txtLowField")value=lowPrice; avgPrice = avgPrice/70; avgPrice = Mathround(avgPrice*1000)/1000; documentgetElementById("txtAvgField")value=avgPrice; }
The calcStockData() function is called by the <BODY> tag s onLoad handler, which passes the ID of the table to extract the data from In this case, the data is not very complex it s just a series of dates and floating-point numbers, but it s not hard to imagine more complex examples where the required data is buried within a long string of text, such as a phone number, a postal code, or an employee number In such cases, it is not uncommon to have to use regular expression (RegExp) syntax to extract the required data from the text Here, the calcStockData() function extracts the stock price from the table using the native JavaScript function parseFloat(), which takes a string argument and returns a floating-point number represented by the string You know that the
Copyright © OnBarcode.com . All rights reserved.