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Reinstate supplemental remarks (System/A-H) (#12700)
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‎snippets/csharp/System/AppContext/Overview/V1/Example4.cs‎

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// <Snippet4>
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using System;
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using System.Reflection;
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[assembly: AssemblyVersion("1.0.0.0")]
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public static class StringLibrary1
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{
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public static int SubstringStartsAt(string fullString, string substr)
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{
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return fullString.IndexOf(substr, StringComparison.Ordinal);
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}
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}
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// </Snippet4>
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namespace App
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{
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// <Snippet5>
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using System;
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public class Example1
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{
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public static void Main()
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{
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string value = "The archaeologist";
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string substring = "archæ";
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int position = StringLibrary1.SubstringStartsAt(value, substring);
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if (position >= 0)
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Console.WriteLine($"'{substring}' found in '{value}' starting at position {position}");
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else
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Console.WriteLine($"'{substring}' not found in '{value}'");
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}
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}
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// The example displays the following output:
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// 'archæ' not found in 'The archaeologist'
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// </Snippet5>
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}

‎snippets/csharp/System/AppContext/Overview/V1/Project.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Library</OutputType>
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<TargetFramework>net10.0</TargetFramework>
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<GenerateAssemblyInfo>false</GenerateAssemblyInfo>
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</PropertyGroup>
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</Project>

‎snippets/csharp/System/AppContext/Overview/V2/Example6.cs‎

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// <Snippet6>
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using System;
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using System.Reflection;
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[assembly: AssemblyVersion("2.0.0.0")]
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public static class StringLibrary2
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{
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public static int SubstringStartsAt(string fullString, string substr)
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{
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return fullString.IndexOf(substr, StringComparison.CurrentCulture);
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}
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}
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// </Snippet6>
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namespace App
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{
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// <Snippet7>
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using System;
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public class Example2
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{
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public static void Main()
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{
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string value = "The archaeologist";
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string substring = "archæ";
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int position = StringLibrary2.SubstringStartsAt(value, substring);
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if (position >= 0)
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Console.WriteLine($"'{substring}' found in '{value}' starting at position {position}");
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else
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Console.WriteLine($"'{substring}' not found in '{value}'");
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}
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}
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// The example displays the following output:
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// 'archæ' found in 'The archaeologist' starting at position 4
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// </Snippet7>
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}

‎snippets/csharp/System/AppContext/Overview/V2/Project.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Library</OutputType>
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<TargetFramework>net10.0</TargetFramework>
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<GenerateAssemblyInfo>false</GenerateAssemblyInfo>
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</PropertyGroup>
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</Project>

‎snippets/csharp/System/AppContext/Overview/V3/Example8.cs‎

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// <Snippet8>
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using System;
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using System.Reflection;
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[assembly: AssemblyVersion("2.0.0.0")]
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public static class StringLibrary
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{
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public static int SubstringStartsAt(string fullString, string substr)
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{
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bool flag;
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if (AppContext.TryGetSwitch("StringLibrary.DoNotUseCultureSensitiveComparison", out flag) && flag == true)
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return fullString.IndexOf(substr, StringComparison.Ordinal);
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else
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return fullString.IndexOf(substr, StringComparison.CurrentCulture);
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}
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}
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// </Snippet8>
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namespace App
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{
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// <Snippet9>
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using System;
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public class Example
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{
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public static void Main()
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{
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string value = "The archaeologist";
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string substring = "archæ";
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int position = StringLibrary.SubstringStartsAt(value, substring);
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if (position >= 0)
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Console.WriteLine($"'{substring}' found in '{value}' starting at position {position}");
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else
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Console.WriteLine($"'{substring}' not found in '{value}'");
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}
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}
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// The example displays the following output:
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// 'archæ' found in 'The archaeologist' starting at position 4
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// </Snippet9>
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}

‎snippets/csharp/System/AppContext/Overview/V3/Project.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Library</OutputType>
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<TargetFramework>net10.0</TargetFramework>
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<GenerateAssemblyInfo>false</GenerateAssemblyInfo>
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</PropertyGroup>
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</Project>

‎snippets/csharp/System/Boolean/Overview/Project.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Library</OutputType>
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<TargetFramework>net10.0</TargetFramework>
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<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
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</PropertyGroup>
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</Project>

‎snippets/csharp/System/Boolean/Overview/binary1.cs‎

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// <Snippet1>
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using System;
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public class Example1
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{
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public static void Main()
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{
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bool[] flags = { true, false };
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foreach (var flag in flags)
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{
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// Get binary representation of flag.
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Byte value = BitConverter.GetBytes(flag)[0];
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Console.WriteLine($"Original value: {flag}");
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Console.WriteLine($"Binary value: {value} ({GetBinaryString(value)})");
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// Restore the flag from its binary representation.
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bool newFlag = BitConverter.ToBoolean(new Byte[] { value }, 0);
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Console.WriteLine($"Restored value: {newFlag}{Environment.NewLine}");
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}
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}
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private static string GetBinaryString(Byte value)
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{
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string retVal = Convert.ToString(value, 2);
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return new string('0', 8 - retVal.Length) + retVal;
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}
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}
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// The example displays the following output:
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// Original value: True
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// Binary value: 1 (00000001)
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// Restored value: True
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//
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// Original value: False
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// Binary value: 0 (00000000)
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// Restored value: False
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// </Snippet1>

‎snippets/csharp/System/Boolean/Overview/conversion1.cs‎

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// <Snippet6>
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using System;
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public class Example2
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{
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public static void Main()
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{
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Byte byteValue = 12;
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Console.WriteLine(Convert.ToBoolean(byteValue));
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Byte byteValue2 = 0;
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Console.WriteLine(Convert.ToBoolean(byteValue2));
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int intValue = -16345;
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Console.WriteLine(Convert.ToBoolean(intValue));
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long longValue = 945;
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Console.WriteLine(Convert.ToBoolean(longValue));
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SByte sbyteValue = -12;
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Console.WriteLine(Convert.ToBoolean(sbyteValue));
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double dblValue = 0;
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Console.WriteLine(Convert.ToBoolean(dblValue));
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float sngValue = .0001f;
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Console.WriteLine(Convert.ToBoolean(sngValue));
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}
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}
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// The example displays the following output:
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// True
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// False
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// True
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// True
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// True
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// False
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// True
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// </Snippet6>

‎snippets/csharp/System/Boolean/Overview/conversion3.cs‎

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// <Snippet8>
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using System;
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public class Example3
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{
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public static void Main()
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{
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bool flag = true;
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byte byteValue;
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byteValue = Convert.ToByte(flag);
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Console.WriteLine($"{flag} -> {byteValue}");
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sbyte sbyteValue;
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sbyteValue = Convert.ToSByte(flag);
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Console.WriteLine($"{flag} -> {sbyteValue}");
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double dblValue;
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dblValue = Convert.ToDouble(flag);
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Console.WriteLine($"{flag} -> {dblValue}");
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int intValue;
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intValue = Convert.ToInt32(flag);
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Console.WriteLine($"{flag} -> {intValue}");
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}
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}
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// The example displays the following output:
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// True -> 1
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// True -> 1
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// True -> 1
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// True -> 1
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// </Snippet8>

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