Exam 1
Where would you typically place the code below? if (PreviousPage != null) { TextBox txtAmount = (TextBox)PreviousPage.FindControl("txtTotalCost"); lblCartAmount.Text = txtAmount.Text; }
In the page's Load event handler
To provide for unobtrusive validation, you can install the ____________________ package for unobtrusive validation.
NuGet
If the user enters data into one or more controls on a page that uses cross-page posting, you can use the _____________________ property to retrieve the data entered by the user.
PreviousPage
You can use snippets to help you enter all but one of the following. Which one is it?
XML Code
By default, ASP.NET sends the session ID to the browser in
a cookie
What character entity is created by the character?
a space
If you're working alone on an application and you don't have access to a server computer, you're using
a standalone environment
Server controls: Determines whether the validation specified by the validation controls is done when a button control is clicked. The default value is True.
CausesValidation
The CheckedChanged event is fired whenever the status of a _____________ control changes.
Checked box
What event does Visual Studio generate code for when you double-click a button in the Form Designer?
Click
If a browser has JavaScript enabled, the validation controls do their validation on the _________.
Client
The img element that follows gets the image file from the images folder, which is <p><img src="../images/logo.gif" alt="Murach Logo"></p>
at the same level as the current folder
dec decTakeHome = 147m; string s = "$$$1,000.00"; foreach (char c in s) { if (c == '$') { int i = s.IndexOf(c); s = s.Remove(i, 1); decTakeHome++; lblTotalTakeHome.Text = s; lblTotalTakeHome.Text = (Convert.ToDecimal(lblTotal_TakeHome.Text) + decTakeHome).ToString("c"); } } What is the value of lblTotalTakeHome.Text after the statements above are executed?
"$1,150.00"
Code Example (based on in-class exercise) dec decTakeHome = 147m; string s = "$1,000.00"; foreach (char c in s) { if (c == '$') { int i = s.IndexOf(c); s = s.Remove(i, 1); decTakeHome++; lblTotalTakeHome.Text = s; lblTotalTakeHome.Text = (Convert.ToDecimal(lblTotal_TakeHome.Text) + decTakeHome).ToString("c"); } } What is the value of lblTotalTakeHome.Text after the statements above are executed?
$1,148.00
If a decimal variable named total has a value of 1234.56, what string will result from the following statement? string s = total.ToString("c2")
$1,234.56
Code Example 4-1 decimal a = 2.5m; decimal b = 4.0m; decimal c = 12.7m; int i = 4; int j = 8; int k = 17; (Refer to Code Example 4-1.) What is the value of x after the following statement is executed? int x = i / j;
0
decimal a = 2.5m; decimal b = 4.0m; decimal c = 12.7m; int i = 4; int j = 8; int k = 17; (Refer to Code Example 4-1.) What is the value of x after the following statement is executed? int x = i / j;
0
decimal a = 2.5m; decimal b = 4.0m; decimal c = 12.7m; int i = 4; int j = 8; int k = 17; (Refer to Code Example 4-1.) What is the value of x after the following statement is executed? decimal x = i / j;
0.0
string s = "$1,000.00"; foreach (char c in s) { if (c == '$') { int i = s.IndexOf(c); s = s.Remove(i, 1); lblTotalTakeHome.Text = s; lblTotalTakeHome.Text = (Convert.ToDecimal(lblTotalTakeHome.Text) + decTakeHome).ToString("c"); } } What is the value of s after the code above is executed?
1,000.00
What is the value of sum after the following code is executed? int sum = 0; int lastnumber = 5; lstFor.Items.Clear(); for (int number = 1; number < lastnumber; number++) { sum += number; lstFor.Items.Add("Number:" + number + "Sum==>" + sum); }
10
How many times will the statements in the following while loop be executed? int number = 1; int sum = 0; int lastnumber = 10; lstWhile.Items.Clear(); while(number <= lastnumber) { sum += number; lstWhile.Items.Add("Number:" + number + "Sum==>" + sum); number++; }
10 times
What is the value of the futureValue variable after the statements in the following do-while loop have been executed one time? decimal monthlyInterestRate = .01m; int months = 10; decimal futureValue = 1000m; int i = 1; do { futureValue = futureValue * (1 + monthlyInterestRate); i++; } while (i < months);
1010
If orderTotal has a value of 50 and quantity has a value of 10, what is the value of discount after these statements are executed? if (quantity == 1) discount = 0; else if (quantity >= 3 && quantity < 10) discount = orderTotal * .1; else if (quantity > 10 && quantity <= 25) discount = orderTotal * .2; else discount = orderTotal * .3;
15
What is the value of sum after the following code is executed? int sum = 0; int lastnumber = 5; lstFor.Items.Clear(); for (int number = 1; number <= lastnumber; number++) { sum += number; lstFor.Items.Add("Number:" + number + "Sum==>" + sum); }
15
Code Example 4-1 decimal a = 2.5m; decimal b = 4.0m; decimal c = 12.7m; int i = 4; int j = 8; int k = 17; (Refer to Code Example 4-1.) What is the value of x after the following statements are executed? int x = 27; x -= i;
23
How many times will the statements in the following loop be executed? int number = 1; int sum = 0; int lastnumber = 5; lstWhile.Items.Clear(); do { sum += number; lstDoWhile.Items.Add("Number:" + number + "Sum==>" + sum); number++; } while (number < lastnumber);
4 times
How many times will the statements in the following while loop be executed? int number = 1; int sum = 0; int lastnumber = 10; lstWhile.Items.Clear(); while(number <= lastnumber) { sum += number; lstWhile.Items.Add("Number:" + number + "Sum==>" + sum); number++; number++; }
5 times
You can use all but one of the following techniques to run an application with debugging. Which one is it?
Right-click the starting page in the Solution Explorer and choose View in Browser.
Server controls: Indicates that the control will be processed on the server by ASP.NET.
Runat
To get the value of the selected item in any list control, you can use the ____________ property of the control.
SelectedValue
When would you typically use the RedirectPermanent method to display another page?
When the page has been moved or renamed
If you set the AutoPostBack property of a control to True, the page is posted back to the server
Whenever the value of the control changes
In a do-while loop, the Boolean expression is tested
after the loop is executed
When the user clicks a button, link button, or image button control, the page is posted back to the server and
both the Click and Command events are raised
Write C# code that refers to the third item in a check box list control named cblProducts.
cblProducts.Items[2]
To check whether a specific data type has been entered into a control, you can use a ______________ validator.
compare
If you want to run your own validation code for a control on the server, you can use a ____________ validator.
custom
Which of the following techniques can you use to load items into a drop-down list named ddlCarType?
ddlCarType.Items.Add("Toyota");
When the code that follows is loaded into the browser, it <h2>About this book</h2>
displays "About this book" in the default h2 format
The <a> element that follows <a href="update.html">Update</a>
displays "Update" as a link
You can use the Source view of the Web Forms Designer to
edit the asps code for a page
Consider the following code. We use the FindControl method to ____________. if (PreviousPage != null) { TextBox txtAmount = (TextBox)PreviousPage.FindControl("txtTotalCost"); lblCartAmount.Text = txtAmount.Text; }
get data from a previous page
The <a> element that follows goes to a web page <a href="books/javscript.html">JavaScript and DOM Scripting</a>
in a folder that is subordinate to the current page
When you use a custom validator, the validation is performed
in the ServerValidate event handler for the validator
Unlike a static web page, a dynamic web page
is generated by a program running on an application server
The benefit of using unobtrusive validation is that
it reduce the amount of JavaScript that's generated
When unobtrusive validation is used, the validation on the client is performed using a JavaScript library called ____________.
jQuery
Which statement is equivalent to the following statements? int intNumberWages = Convert.ToInt16(lblNumberWages.Text); intNumberWages++; lblNumberWages.Text = intNumberWages.ToString();
lblNumberWages.Text = (Convert.ToInt16(lblNumberWages.Text) + 1).ToString();
A ___________________ control makes it easier to add a group radio buttons to a form.
radio button list
To determine if an item in a check box list is selected, you
refer to the item by its index value and test its Selected property
string s = "$$1,000.00"; foreach (char c in s) { if (c == '$') { int i = s.IndexOf(c); s = s.Remove(____, ____); lblTotalTakeHome.Text = s; lblTotalTakeHome.Text = (Convert.ToDecimal(lblTotal_TakeHome.Text) + decTakeHome).ToString("c"); } } If we want to remove all "$" signs from the string "s" what should be added to the s = s.Remove (____, ____) statement above?
s = s.Remove(i, 1);
C# statements must end with a
semicolon-;
The IntelliSense feature of Visual Studio can help you enter all but one of the following. Which one is it?
snippets
by default, the <br> tag
starts a new line of text
You should assign different values to the Text and Value properties of a list item if you want to
store a different value for the list item than the one that's displayed
To determine if an item in a radio button list is selected, you
test the list's SelectedValue property
The title element in the head section of an HTML document specifies the text
that's displayed in the title bar of the browser
The CheckedChanged event is raised for a radio button whenever the checked property of
the button changes to checked
You should use HTML elements instead of server controls when
the contents of the controls aren't going to change
Which of the following can be tested by a regular expression validator?
the format of a social security number
Which statement is equivalent to the following statement? total = total + tax;
total +=tax;
In an Internet development environment, you use an FTP server to
transfer files between the client computer and the web server
If you want to display all of the error messages for the validators in one portion of a web page, you can use a ______________________ control.
validation summary
