zxing c# qr code example Exiting the foreach Statement Early in C#.NET

Creating QR Code JIS X 0510 in C#.NET Exiting the foreach Statement Early

Exiting the foreach Statement Early
Paint QR Code JIS X 0510 In Visual C#
Using Barcode generation for .NET framework Control to generate, create QR-Code image in .NET framework applications.
www.OnBarcode.com
QR-Code Scanner In C#
Using Barcode recognizer for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Suppose that you do not want to work with all the numbers in the array . In VBScript terms, leaving a For Each Loop early is called an Exit For statement . You have to use an If statement to perform the evaluation of the condition . When the condition is met, you call Exit For . In the DemoExitFor .vbs script, you use an inline If statement to make this determination . The inline syntax is more efficient for these kinds of things than spreading the statement across three different lines . The main thing to remember about the inline If statement is that it does not conclude with the final End If statement . The DemoExitFor .vbs script is seen here .
Drawing Barcode In Visual C#
Using Barcode maker for .NET Control to generate, create barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Recognize Barcode In Visual C#.NET
Using Barcode reader for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
DemoExitFor.vbs ary = Array(1,2,3,4,5) For Each i In ary If i = 3 Then Exit For WScript.Echo i Next WScript.Echo "Statement following Next"
QR Code ISO/IEC18004 Creator In .NET
Using Barcode encoder for ASP.NET Control to generate, create QR-Code image in ASP.NET applications.
www.OnBarcode.com
Encode Quick Response Code In .NET
Using Barcode drawer for .NET Control to generate, create QR-Code image in .NET framework applications.
www.OnBarcode.com
USING THE bREAK STaTEMENT
QR-Code Printer In Visual Basic .NET
Using Barcode creation for Visual Studio .NET Control to generate, create QR Code JIS X 0510 image in Visual Studio .NET applications.
www.OnBarcode.com
Create 2D Barcode In C#.NET
Using Barcode maker for Visual Studio .NET Control to generate, create Matrix 2D Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
In Windows PowerShell terms, you use the break statement to leave the loop early . Inside the script block, you use an if statement to evaluate the value of the $i variable . If it is equal to 3, you call the break statement and leave the loop . This line of code is seen here .
Paint PDF417 In C#
Using Barcode generation for VS .NET Control to generate, create PDF 417 image in Visual Studio .NET applications.
www.OnBarcode.com
Painting Code-39 In Visual C#.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create Code 3 of 9 image in .NET applications.
www.OnBarcode.com
if($i -eq 3) { break }
Generating QR Code In C#.NET
Using Barcode drawer for VS .NET Control to generate, create QR Code image in .NET framework applications.
www.OnBarcode.com
Paint 2/5 Interleaved In Visual C#.NET
Using Barcode maker for Visual Studio .NET Control to generate, create I-2/5 image in VS .NET applications.
www.OnBarcode.com
The complete DemoBreakFor .ps1 script is seen here .
Drawing PDF 417 In Visual Basic .NET
Using Barcode creation for Visual Studio .NET Control to generate, create PDF-417 2d barcode image in VS .NET applications.
www.OnBarcode.com
Draw PDF-417 2d Barcode In None
Using Barcode encoder for Online Control to generate, create PDF417 image in Online applications.
www.OnBarcode.com
DemoBreakFor.ps1 $ary = 1..5 ForEach($i in $ary) { if($i -eq 3) { break } $i } "Statement following foreach loop"
Decoding PDF 417 In Visual Studio .NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Bar Code Generation In .NET
Using Barcode generator for Reporting Service Control to generate, create bar code image in Reporting Service applications.
www.OnBarcode.com
Introduction to Windows PowerShell Scripting
Scan Barcode In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Encoding GS1 - 13 In Objective-C
Using Barcode encoder for iPhone Control to generate, create European Article Number 13 image in iPhone applications.
www.OnBarcode.com
CHapTER 13
Printing Bar Code In VS .NET
Using Barcode creator for .NET framework Control to generate, create bar code image in .NET framework applications.
www.OnBarcode.com
Making GTIN - 128 In Java
Using Barcode printer for Android Control to generate, create UCC - 12 image in Android applications.
www.OnBarcode.com
When the DemoBreakFor .ps1 script runs, it displays the numbers 1 and 2 . Then it leaves the foreach loop and runs the line of code following the foreach loop, as seen here .
1 2 Statement following foreach loop
USING THE ExIT STaTEMENT
If you did not want to run the line of code after the loop statement, you would use the exit statement instead of the break statement . This is shown in the DemoExitFor .ps1 script, as shown here .
DemoExitFor.ps1 $ary = 1..5 ForEach($i in $ary) { if($i -eq 3) { exit } $i } "Statement following foreach loop"
When the DemoExitFor .ps1 script runs, the line of code following the foreach loop never executes, because the exit statement ends the script . The results of running the DemoExitFor .ps1 script are shown here .
You could achieve the same thing in VBScript by using the Wscript.Quit statement instead of Exit For . As with the DemoExitFor .ps1 script, the DemoQuitFor .vbs script never comes to the line of code following the For Each Loop. This is seen in DemoQuitFor .vbs .
DemoQuitFor.vbs ary = Array(1,2,3,4,5) For Each i In ary If i = 3 Then WScript.Quit WScript.Echo i Next WScript.Echo "Statement following Next"
In this section, the use of the foreach statement was examined . It is used when you do not know how many items are contained within a collection . It allows you to walk through the collection and to work with items from that collection on an individual basis . In addition, two techniques for exiting a foreach statement were examined .
CHapTER 13
Overview of Management Tools
The if Statement
In VBScript, the If Then End If statement was somewhat straightforward . There were several things to understand:
n n n
The If and the Then statements must be on the same line . The If Then End If statement must conclude with End If. End If is two words, not one word .
The VBScript If Then End If statement is seen in the DemoIf .vbs script .
DemoIf.vbs a = 5 If a = 5 Then WScript.Echo "a equals 5" End If
In the Windows PowerShell version of the If Then End If statement, there is no Then keyword, nor is there an End If statement . The Windows PowerShell if statement is easier to type, but this simplicity comes with a bit of complexity . The condition that is evaluated in the if statement is positioned in a set of parentheses . In the DemoIf .ps1 script, you are checking whether the variable $a is equal to 5, as seen here .
If ($a eq 5)
The code that is executed when the condition is true is positioned inside a pair of braces (curly brackets) . The script block for the DemoIf .ps1 script is seen here .
{ '$a equals 5' }
Copyright © OnBarcode.com . All rights reserved.