[ Home | Syllabus | Course Notes | Assignments | Search]
Rules of taking this test
Honor Pledge: I pledge that I have neither given nor
received unauthorized help in taking this exam. Dr. Wild Signature: __________________________________________________________ Printed Name: __________________________________________________________
|
Modify the web form found here change the form to add three buttons.
A) Update: this will update the time displayed to the
current time. This is needed because the current web
form displays the current time when it is first loaded. In order to get a
more recent current time, you will use this button.
B) Start: this is to start an elapsed time timer
C) Stop: this will stop the elapsed time timer and display the elapsed time
Thus if the user selects the start button and 5 seconds later selects the
stop button, the form will display 5 seconds.
You must use the session object to solve this problem.
Your answer should include the entire web application
so I can install and run it.
Given the following XML schema definition
<?xml version="1.0"?> <xsd:schema id="Guitars" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <xsd:element name="Guitars"> <xsd:complexType> <xsd:choice maxOccurs="unbounded"> <xsd:element name="Guitar"> <xsd:complexType> <xsd:sequence> <xsd:element name="Make" type="xsd:string" /> <xsd:element name="Model" type="xsd:string" /> <xsd:element name="Year" type="xsd:gYear" minOccurs="0" /> <xsd:element name="Color" type="xsd:string" minOccurs="0" /> <xsd:element name="Neck" type="xsd:string" minOccurs="0" /> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:choice> </xsd:complexType> </xsd:element> </xsd:schema>
Write an XSL Transformation that will transform the information in an XML file conforming to this schema to a text file in this format
Guitars.Guitar."elementName"::"textValue"
where "elementName" is one of "Make, Model, Year, Color, Neck" and "textValue" is the text value of that element.
There is a difference between a well formed XML document and a valid one. Using the schema in the above question, give an example of an XML file that is
A) not well formed and not valid
B) well formed but not valid
C) well formed and valid
D) not well formed but valid
Change the Calc web service given here
to add a new method that adds three numbers at once (because you find you
often have to add three numbers and you only want to make one service call).
Call this new method "add3". Show the changes (only) that will be
made to the "asmx" file, the "wsdl" and the client proxy
code.
Web service proxies support asynchronous requests (see web client notes). Change the following example to use a multi-thread solution which gives the same performance in the main thread but only uses the synchronous method of requesting the web service in the secondary thread (ie. no calls to calc.BeginAdd).
CalculatorWebService calc = new CalculatorWebService (); IAsyncResult res = calc.BeginAdd (2, 2, null, null);
. . . // do something else while you wait
//// removed alternate coding
if (res.IsCompleted) {
int sum = calc.EndAdd (res); }
else { // Try again later }
//// clarification - the above code is in the main thread and uses asynchronous web services to
Given the "NetDraw" remoting
example, list, in order, the function/method/service calls, invoked for
one client to draw a single stroke and send it to the other clients (you
only need to describe the sequence on one of the other clients). Only list
the calls that are given here.
Assume none of the other clients are doing anything.
Which of the student presentations did you find the most interesting and why?