When the content of a textbox is changed, the “ TextChanged ” event occurs. Hence, correct answer is option “ C ”.

Question

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Answer 1

Expert Solution & Answer

Chapter 3.LC, Problem 1RQ

Program Description Answer

When the content of a textbox is changed, the “TextChanged” event occurs.

Hence, correct answer is option “C”.

Expert Solution & Answer

Explanation of Solution

TextChanged Event:

If a control’s text property contents are getting changed, then the “TextChanged” event occurrs.
The “TextChanged” event can occur by the following ways:
- When the user is entering or deleting the text content on a controls text property.
- When the application code assigns or removes the text content into the controls text property.

Example:

'Procedure code1

Private Sub btnAsign_Click(ByVal sender As Object,ByVal e As System.EventArgs) Handles btnAsign. Click

'The button click event assigns the text to 'the text box control

txtT1.Text= “Karlson”

End Sub

'Procedure code2

Private Sub txtT1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtT1.TextChanged

'The label box text content is cleared when 'the text change event is occurred

lblTotalPhones.Text = string.Empty

End Sub

In the btnAsign_Click procedure, the string value “Karlson” is assigned to the text box control txtT1.

As the text content is assigned to the text control, the TextChanged event occurs in the text box control txtT1.
As a result, txtT1_TextChanged procedure is executed, and this event clears the text content from the label lblTotalPhones.

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D. S. Malik, Data Structures Using C++, 2nd Edition, 2010

Methods (Ch6) - Review 1. (The MyRoot method) Below is a manual implementation of the Math.sqrt() method in Java. There are two methods, method #1 which calculates the square root for positive integers, and method #2, which calculates the square root of positive doubles (also works for integers). public class SquareRoot { public static void main(String[] args) { } // implement a loop of your choice here // Method that calculates the square root of integer variables public static double myRoot(int number) { double root; root=number/2; double root old; do { root old root; root (root_old+number/root_old)/2; } while (Math.abs(root_old-root)>1.8E-6); return root; } // Method that calculates the square root of double variables public static double myRoot(double number) { double root; root number/2; double root_old; do { root old root; root (root_old+number/root_old)/2; while (Math.abs (root_old-root)>1.0E-6); return root; } } Program-it-Yourself: In the main method, create a program that…

Answer 2

Expert Solution & Answer

Chapter 3.LC, Problem 1RQ

Program Description Answer

When the content of a textbox is changed, the “TextChanged” event occurs.

Hence, correct answer is option “C”.

Expert Solution & Answer

Explanation of Solution

TextChanged Event:

If a control’s text property contents are getting changed, then the “TextChanged” event occurrs.
The “TextChanged” event can occur by the following ways:
- When the user is entering or deleting the text content on a controls text property.
- When the application code assigns or removes the text content into the controls text property.

Example:

'Procedure code1

Private Sub btnAsign_Click(ByVal sender As Object,ByVal e As System.EventArgs) Handles btnAsign. Click

'The button click event assigns the text to 'the text box control

txtT1.Text= “Karlson”

End Sub

'Procedure code2

Private Sub txtT1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtT1.TextChanged

'The label box text content is cleared when 'the text change event is occurred

lblTotalPhones.Text = string.Empty

End Sub

In the btnAsign_Click procedure, the string value “Karlson” is assigned to the text box control txtT1.

As the text content is assigned to the text control, the TextChanged event occurs in the text box control txtT1.
As a result, txtT1_TextChanged procedure is executed, and this event clears the text content from the label lblTotalPhones.

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Answer 3

Expert Solution & Answer

Chapter 3.LC, Problem 1RQ

Program Description Answer

When the content of a textbox is changed, the “TextChanged” event occurs.

Hence, correct answer is option “C”.

Expert Solution & Answer

Explanation of Solution

TextChanged Event:

If a control’s text property contents are getting changed, then the “TextChanged” event occurrs.
The “TextChanged” event can occur by the following ways:
- When the user is entering or deleting the text content on a controls text property.
- When the application code assigns or removes the text content into the controls text property.

Example:

'Procedure code1

Private Sub btnAsign_Click(ByVal sender As Object,ByVal e As System.EventArgs) Handles btnAsign. Click

'The button click event assigns the text to 'the text box control

txtT1.Text= “Karlson”

End Sub

'Procedure code2

Private Sub txtT1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtT1.TextChanged

'The label box text content is cleared when 'the text change event is occurred

lblTotalPhones.Text = string.Empty

End Sub

In the btnAsign_Click procedure, the string value “Karlson” is assigned to the text box control txtT1.

As the text content is assigned to the text control, the TextChanged event occurs in the text box control txtT1.
As a result, txtT1_TextChanged procedure is executed, and this event clears the text content from the label lblTotalPhones.

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Answer 4

Expert Solution & Answer

Chapter 3.LC, Problem 1RQ

Program Description Answer

When the content of a textbox is changed, the “TextChanged” event occurs.

Hence, correct answer is option “C”.

Expert Solution & Answer

Explanation of Solution

TextChanged Event:

If a control’s text property contents are getting changed, then the “TextChanged” event occurrs.
The “TextChanged” event can occur by the following ways:
- When the user is entering or deleting the text content on a controls text property.
- When the application code assigns or removes the text content into the controls text property.

Example:

'Procedure code1

Private Sub btnAsign_Click(ByVal sender As Object,ByVal e As System.EventArgs) Handles btnAsign. Click

'The button click event assigns the text to 'the text box control

txtT1.Text= “Karlson”

End Sub

'Procedure code2

Private Sub txtT1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtT1.TextChanged

'The label box text content is cleared when 'the text change event is occurred

lblTotalPhones.Text = string.Empty

End Sub

In the btnAsign_Click procedure, the string value “Karlson” is assigned to the text box control txtT1.

As the text content is assigned to the text control, the TextChanged event occurs in the text box control txtT1.
As a result, txtT1_TextChanged procedure is executed, and this event clears the text content from the label lblTotalPhones.

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Answer 5

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Answer 6

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Answer 7

Chapter 3.LC, Problem 1RQ

Program Description Answer

When the content of a textbox is changed, the “TextChanged” event occurs.

Hence, correct answer is option “C”.

Expert Solution & Answer

Explanation of Solution

TextChanged Event:

If a control’s text property contents are getting changed, then the “TextChanged” event occurrs.
The “TextChanged” event can occur by the following ways:
- When the user is entering or deleting the text content on a controls text property.
- When the application code assigns or removes the text content into the controls text property.

Example:

'Procedure code1

Private Sub btnAsign_Click(ByVal sender As Object,ByVal e As System.EventArgs) Handles btnAsign. Click

'The button click event assigns the text to 'the text box control

txtT1.Text= “Karlson”

End Sub

'Procedure code2

Private Sub txtT1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtT1.TextChanged

'The label box text content is cleared when 'the text change event is occurred

lblTotalPhones.Text = string.Empty

End Sub

In the btnAsign_Click procedure, the string value “Karlson” is assigned to the text box control txtT1.

As the text content is assigned to the text control, the TextChanged event occurs in the text box control txtT1.
As a result, txtT1_TextChanged procedure is executed, and this event clears the text content from the label lblTotalPhones.

Answer 8

Chapter 3.LC, Problem 1RQ

Program Description Answer

When the content of a textbox is changed, the “TextChanged” event occurs.

Hence, correct answer is option “C”.

Expert Solution & Answer

Explanation of Solution

TextChanged Event:

If a control’s text property contents are getting changed, then the “TextChanged” event occurrs.
The “TextChanged” event can occur by the following ways:
- When the user is entering or deleting the text content on a controls text property.
- When the application code assigns or removes the text content into the controls text property.

Example:

'Procedure code1

Private Sub btnAsign_Click(ByVal sender As Object,ByVal e As System.EventArgs) Handles btnAsign. Click

'The button click event assigns the text to 'the text box control

txtT1.Text= “Karlson”

End Sub

'Procedure code2

Private Sub txtT1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtT1.TextChanged

'The label box text content is cleared when 'the text change event is occurred

lblTotalPhones.Text = string.Empty

End Sub

In the btnAsign_Click procedure, the string value “Karlson” is assigned to the text box control txtT1.

As the text content is assigned to the text control, the TextChanged event occurs in the text box control txtT1.
As a result, txtT1_TextChanged procedure is executed, and this event clears the text content from the label lblTotalPhones.

Answer 9

Chapter 3.LC, Problem 1RQ

Program Description Answer

When the content of a textbox is changed, the “TextChanged” event occurs.

Hence, correct answer is option “C”.

Answer 10

Expert Solution & Answer

Explanation of Solution

TextChanged Event:

If a control’s text property contents are getting changed, then the “TextChanged” event occurrs.
The “TextChanged” event can occur by the following ways:
- When the user is entering or deleting the text content on a controls text property.
- When the application code assigns or removes the text content into the controls text property.

Example:

'Procedure code1

Private Sub btnAsign_Click(ByVal sender As Object,ByVal e As System.EventArgs) Handles btnAsign. Click

'The button click event assigns the text to 'the text box control

txtT1.Text= “Karlson”

End Sub

'Procedure code2

Private Sub txtT1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtT1.TextChanged

'The label box text content is cleared when 'the text change event is occurred

lblTotalPhones.Text = string.Empty

End Sub

In the btnAsign_Click procedure, the string value “Karlson” is assigned to the text box control txtT1.

As the text content is assigned to the text control, the TextChanged event occurs in the text box control txtT1.
As a result, txtT1_TextChanged procedure is executed, and this event clears the text content from the label lblTotalPhones.

Answer 11

Expert Solution & Answer

Answer 12

Expert Solution & Answer

Answer 13

Ch. 3.LA - Prob. 1RQ Ch. 3.LA - Prob. 2RQ Ch. 3.LA - Which of the following statements declares a...Ch. 3.LA - Prob. 4RQ Ch. 3.LA - Prob. 5RQ Ch. 3.LA - Which of the following declares a procedure-level...Ch. 3.LA - Prob. 7RQ Ch. 3.LA - Prob. 8RQ Ch. 3.LA - Prob. 9RQ Ch. 3.LA - Prob. 10RQ

When the content of a textbox is changed, the “ TextChanged ” event occurs. Hence, correct answer is option “ C ”.

Concept explainers

When the content of a textbox is changed, the “TextChanged” event occurs.

Hence, correct answer is option “C”.

Explanation of Solution

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Chapter 3 Solutions

When the content of a textbox is changed, the “ TextChanged ” event occurs. Hence, correct answer is option “ C ”.

Concept explainers

When the content of a textbox is changed, the “TextChanged” event occurs. Hence, correct answer is option “C”.

Explanation of Solution

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Chapter 3 Solutions

When the content of a textbox is changed, the “TextChanged” event occurs.

Hence, correct answer is option “C”.