maintaining state in a web application
Tài liệu Maintaining State in a Web Application pptx
Ngày tải lên :
24/12/2013, 01:17
... to access rows in a database table. In the following sections,
you'll learn how to create an ASP.NET Web application that uses a DataGrid control to
access the rows in a database table. ... example, if you're building a Web
site that a user can order products from, store their shopping cart in the
database.
Using a DataGrid Control to Access a Database
A DataGrid allows ... class" in the index of the online documentation.
Storing Information using the Database
If you have a large amount of information to store about a user, store it in the
database rather than the...
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Localizing Client-Side Data in a Web Forms Application
Ngày tải lên :
28/10/2013, 18:15
...
Example 3-5. File: ADOCookbookCS0305.aspx.cs
// Namespaces, variables, and constants
using System;
using System.Threading;
using System.Globalization;
using System.Data;
using System.Data.SqlClient; ... server's settings.
The sample code-behind for the Web Forms page contains one event handler and a single
method:
Form.Load
Creates the CultureInformation object based on the user's settings. ... user's culture.
[ Team LiB ]
[ Team LiB ]
Recipe 3.5 Localizing Client-Side Data in a Web Forms Application
Problem
You need to format dates and currency values according to the culture...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P1 doc
Ngày tải lên :
14/12/2013, 22:15
... “.;c:\jakarta-tomcat\lib\servlet.jar;c:\xalan-
➥
j_2_0_1\bin\xalan.jar;c:\xalan-j_2_0_1\bin\xerces.jar;”
➥
de/tarent/forum/Xalan2Transformer.java -d /classes
javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;c:\xalan-
➥
j_2_0_1\bin\xalanj1compat.jar;c:\xalan-j_2_0_1\bin\xalan.jar;c:\xalan-
➥
j_2_0_1\bin\xerces.jar;” de/tarent/forum/TransformTag.java ... “.;c:\jakarta-tomcat\lib\servlet.jar;”
➥
de/tarent/forum/OutputChatMessagesTag.java -d /classes
javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;”
➥
de/tarent/forum/OutputDebugInfoTag.java -d /classes
javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;”
➥
de/tarent/forum/NoCacheHeaderTag.java ... “.;c:\xalan-j_1_2_2\xalan.jar;c:\xalan-
➥
j_1_2_2\xerces.jar;c:\jakarta-tomcat\lib\servlet.jar;”
➥
de/tarent/forum/Xalan1Transformer.java -d /classes
javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;c:\xalan-
➥
j_2_0_1\bin\xalan.jar;c:\xalan-j_2_0_1\bin\xerces.jar;”
➥
de/tarent/forum/Xalan2Transformer.java...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P2 ppt
Ngày tải lên :
14/12/2013, 22:15
... c:\jakarta-tomcat\classes;c:\jakarta-
tomcat\lib\ant.jar;c:\jakarta-tomcat\lib\jaxp.jar;c:\jakarta-
➥
tomcat\lib\servlet.jar;c:\jakarta-tomcat\lib\parser.jar;c:\jakarta-tomcat\lib\we
➥
bserver.jar;c:\jakarta-tomcat\lib\jasper.jar;c:\jakarta-
➥
tomcat\lib\xalanservlet.jar;c:\jakarta-tomcat\lib\xerces.jar;c:\jakarta-
➥
tomcat\lib\xalanj1compat.jar;c:\jakarta-tomcat\lib\aaxalan.jar;c:\jdk1.3\lib\too
➥
ls.jar
2001-05-23 ... c:\jakarta-tomcat\classes;c:\jakarta-
tomcat\lib\ant.jar;c:\jakarta-tomcat\lib\jaxp.jar;c:\jakarta-
➥
tomcat\lib\servlet.jar;c:\jakarta-tomcat\lib\parser.jar;c:\jakarta-tomcat\lib\we
➥
bserver.jar;c:\jakarta-tomcat\lib\jasper.jar;c:\jakarta-
➥
tomcat\lib\xalanservlet.jar;c:\jakarta-tomcat\lib\xerces.jar;c:\jakarta-
➥
tomcat\lib\xalanj1compat.jar;c:\jakarta-tomcat\lib\aaxalan.jar;c:\jdk1.3\lib\too
➥
ls.jar
2001-05-23 ... editor.
Congratulations! You now have a new Web application installed. As the chess saying
goes, “the rest is all a matter of details.”You have what you need: an example of a Java
servlet calling a JSP page,...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P3 ppt
Ngày tải lên :
14/12/2013, 22:15
... discussed and heralded in particular as a great benefit in connecting
legacy applications to modern Web- based applications.
Within a Web application, passing even one parameter that contains XML data ... environments.
5.4 XML Data Flows in Web Applications
We believe that passing XML data within a Web application will turn out to be as
important as passing XML data between systems and applications.The latter ... database management system
because handling chat data is an obvious job.We decided against that for several rea-
sons. One is that we did not want to assume that all our readers are familiar...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P4 docx
Ngày tải lên :
14/12/2013, 22:15
... of actors, we can hardly have a program
intelligent enough to maintain a meaningful user experience.
In the bonForum Web application, we also use another mechanism to relate differ-
ent Web pages ... Drives the Web Application?
In Chapter 8, we will claim that the
BonForumEngine
servlet is in charge of the Web
application after all, it is the communication hub in the Web application. However,
viewed ...
bonForumXML
(a
ForestHashtable
) as a string.
Now we decided to make it the input XML stream for the Xalan XSLT processor as
part of our
TransformTag
class.
Displaying the available chats would mean...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P5 pptx
Ngày tải lên :
14/12/2013, 22:15
... Topic
■
Performing thread synchronization
■
Synchronizing the XML database
■
Finding the chat and actor status in Chat
■
Rejoining existing chats
■
Starting a chat
■
Adding a host actor
■
Adding a chat element
08 ... to each JSP-produced page of a bonForum
instance.
The incoming request parameters are validated and made available to the Web
application in whatever scope is appropriate.We will give two examples ... objects as a Web (chat) application
n
Processes and forwards applet-generated JSP requests
n
Processes information from all JSPs in the Web application
n
Initializes the XML data wrapper, a
BonForumStore
instance
n
Sets...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P6 ppt
Ngày tải lên :
14/12/2013, 22:15
... If the actor was in the chat, always join it with the previous status; otherwise,
warn and ask again.
3. If the actor was in the chat, always join as a guest; otherwise, warn and ask again.
08 ... database (now a
ForestHashtable
)
n
Initializes the XML database for use as a chat Web app
n
Loads XML files into a database using its methods
n
Dumps the content of the database as XML in a ... classes, one for Xalan-Java 1 and one for Xalan-
Java 2.
Simplifying greatly, here are the statements called by the
TransformTag
class to get
its XML database in a string:
private static BonForumStore...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P7 pptx
Ngày tải lên :
14/12/2013, 22:15
... about vari-
ables that are used in the Web application. It will assume as it translates the tag that
these variables are available as page attributes. Later, when we look at the translated
Java ... time about tags and the variables they use.These classes
are
TagAttributeInfo
,
TagData
,
TagExtraInfo
,
TagInfo
,
TagLibraryInfo
, and
VariableInfo
.
The doStartTag( ) Method
Implementing the ... de.tarent.forum;
import javax.servlet.jsp.tagext.*;
public class BonForumTagExtraInfo extends TagExtraInfo {
public VariableInfo[] getVariableInfo(TagData data) {
return new VariableInfo[] {
new VariableInfo(“output”,
“String”,
true,
10...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P8 pdf
Ngày tải lên :
14/12/2013, 22:15
... without using any tabs
or spaces! Thankfully, that bug seems to be gone now—at least, while using the Xalan-
Java 1 compatibility JAR or the Xalan-Java 2 JAR.
10.8 Displaying the Available bonForums
We ... system_executes_command.jsp. Note that if you have
Xalan-Java-2
,
you can also set
xalanVersion
to
Xalan Java 1
, as long as the compatibility JAR file
is accessible, for example, as TOMCAT_HOME\lib\xalanj1compat.jar.
Let’s ... two
classes to encapsulate the steps required for either
Xalan-Java 1
or
Xalan-Java 2
.The
classes are called
Xalan1Transformer
and
Xalan2Transformer
. Each has one method
called
transform
, which...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P9 pptx
Ngày tải lên :
14/12/2013, 22:15
... the
pathNameHashtable
(as an element this time)
with a key that is a string containing the
pathName
that was just given as an example.
Mapping User Choices to PathName Keys
We can now display ... this watermark.
416
Chapter 11 XML Data Storage Class: ForestHashtable
attribute to a chat element.We will also try using it to allow a chat host to change the
rating of a guest in a chat.
Warning
The ... created by the following
statement from the file ForestHashtable.java:
public NodeNameHashtable nodeNameHashtable = new NodeNameHashtable();
Notice that a class called
NodeNameHashtable
has...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P10 ppt
Ngày tải lên :
24/12/2013, 07:17
... “.;c:\jakarta-tomcat\lib\servlet.jar;c:\xalan-
j_2_0_1\bin\xalan.jar;c:\xalan-j_2_0_1\bin\xerces.jar;”
de/tarent/forum/Xalan2Transformer.java -d /classes
javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;c:\xalan-
j_2_0_1\bin\xalanj1compat.jar;c:\xalan-j_2_0_1\bin\xalan.jar;c:\xalan-
j_2_0_1\bin\xerces.jar;” ... -XSL
bonChatGuests.xsl -OUT bonChatGuestsTEST.html
java -classpath “c:\jakarta-tomcat\lib\xalanj1compat.jar;c:\jakarta-
tomcat\lib\xerces.jar;c:\jakarta-tomcat\lib\xalan.jar”
org.apache.xalan.xslt.Process ... “.;c:\jakarta-tomcat\lib\servlet.jar;”
de/tarent/forum/BonForumTagExtraInfo.java -d /classes
javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;”
de/tarent/forum/OutputPathNamesTag.java -d /classes
javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;”
de/tarent/forum/OutputChatMessagesTag.java...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P11 ppt
Ngày tải lên :
24/12/2013, 07:17
... previous
status, else warn and ask again
// 3. if actor was in it, always join as guest, else warn
and ask again
// All these choices can be modified re
actorRestartingCurrentChat value
// For now, we implement ... {
if(haveChatItem) {
boolean actorIsHostInChat = false;
boolean actorIsGuestInChat = false;
boolean actorWillRejoinChat = false;
// See if chatItem (i.e., subject+topic) exists already as
a chat:
chatNodeKeyKey ... behavior of “visitor starts
chat” when chat exists
// 1. always warn user and ask again for new subject
and/or new topic
// 2 if actor was in it, always join with previous
status, else warn and...
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Tài liệu XML, XSLT, Java, and JSP: A Case Study in Developing a Web Application- P12 pdf
Ngày tải lên :
24/12/2013, 07:17
...
* @param parentNodeKeyKey String
* @param nameAndAttributes String
* @param content String
* @param forestHashtableName String
* @param nodeKeyHashtableName String
* @param sessionId String
* ... =
(String)session.getAttribute(“chatMessagesNavigator”);
if(!navigation.equals(“same”) && !navigation.equals(“first”) &&
!navigation.equals(“previous”) && !navigation.equals(“next”) &&
!navigation.equals(“last”)) ... ForestHashtable member.
*
*
* @param pathToSubTreeRootNode String
* @param parentNodeInDestination String
* @param node Node
* @param nodeKeyHashtableName String
* @param sessionId String
*/
protected...
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Displaying an Image from a Database in a Web Forms Control
Ngày tải lên :
28/10/2013, 18:15
... display an image from a database column in an ASP.NET control.
Solution
Fill an ASP.NET Image control from a database field by pointing the ImageUrl property
of an Image control to a web page ... statement to retrieve the required image from the database and
retrieve the image using a DataReader. A DataTable or DataSet filled using a
DataAdapter can also be used.
3. Set the ContentType property ... following steps outline the required tasks:
1. Create a web page that outputs a binary stream containing the image from the
database.
2. Create a SQL statement to retrieve the required image...
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- matrix metalloprotease2 is implicated in many biological processes and degrades extracellular and nonextracellular matrix molecules matrix metalloprotease2 maintains a latent state through a cysteine–zinc ion pairing which
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