C#.Net Migration - A2Z Dotnet

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Using Statement using System; Using statement causes class Class1 automatic call to Dispose { to be generated at static void Main(string[] args) compile time { using(DataBaseManager dbm = new DataBaseManager()) { //use dbm } } }//Dispose method of dbm called automatically! public class DataBaseManager : IDisposable { void IDisposable.Dispose() { //database cleanup code } } 46
Unsafe Code Blocks • Must set compiler option in project properties – Project->Properties->Configuration Properties->Build->Allow Unsafe Code blocks – set to true [DllImport("kernel32", SetLastError=true)] static extern unsafe bool ReadFile(int hFile, void* lpBuffer, int nBytesToRead, int* nBytesRead, int overlapped); Marked as Unsafe due to pointers public unsafe int Read(byte[] buffer, int index, int count) { } int n = 0; fixed (byte* p = buffer) { } return n; ReadFile(handle, p + index, count, &n, 0); Marked fixed to keep object from moving when GC runs 47
Page 1 and 2: C# .NET Migration Moving from Visua
Page 3 and 4: Agenda • The .NET Framework, The
Page 5 and 6: Managed and Unmanaged Code Managed
Page 7 and 8: Why a Runtime? • MTS and COM+ wer
Page 9 and 10: Run on Any Platform • Today mainl
Page 11 and 12: Platforms That Support .NET Framewo
Page 13 and 14: Concerns with MSIL • Easy to deco
Page 15 and 16: Obfuscated Code //Original Source C
Page 17 and 18: Common Type System (CTS) • CLR pr
Page 19 and 20: Common Language Specification (CLS)
Page 21 and 22: C# Types - extend CLS Types • Com
Page 23 and 24: C# and VB.NET - not as different as
Page 25 and 26: Properties public class Human { pri
Page 27 and 28: Implementing and using interfaces u
Page 29 and 30: Using Type Navigation Operators int
Page 31 and 32: Base classes • Every type has at
Page 33 and 34: Base/derived construction • Const
Page 35 and 36: Derivation and constructor flow of
Page 37 and 38: Using method dispatching modifiers
Page 39 and 40: Combining method modifiers abstract
Page 41 and 42: Destructors and IDisposable using S
Page 43 and 44: Culturally Very Different ;-) • C
Page 45: Operator Overloading using System;
Page 49 and 50: Documentation Comments-Output 49
Page 51 and 52: Assemblies and Versioning • Assem
Page 53 and 54: Assembly without strong name Notice
Page 55 and 56: Assembly with strong name Notice ve
Page 57 and 58: Client and Versioning • Client is
Page 59 and 60: Global Assembly Cache • One of th
Page 61 and 62: Creating a publisher policy assembl
Page 63 and 64: Agenda The .NET Framework and the
Page 65 and 66: Pattern • Notification typically
Page 67 and 68: Delegate definition • Define dele
Page 69 and 70: Target use of delegate • Target d
Page 71 and 72: Registration • Create delegate ob
Page 73 and 74: Summary of delegate use define dele
Page 75 and 76: Remove delegate • Can remove dele
Page 77 and 78: Events • Events give private data
Page 79 and 80: Interoperability • Framework Clas
Page 81 and 82: Using a VB6 DLL from C# .NET • CL
Page 83 and 84: Platform Invoke - P/Invoke • P/In
Page 85 and 86: MarshalAsAttribute parameters • C
Page 87 and 88: .NET Interoperability with COM •
Page 89 and 90: .NET Exposed for COM Clients using
Page 91 and 92: Agenda The .NET Framework and the
Page 93 and 94: ADO.NET Example public static void
Page 95 and 96: DataSet Example public static void
Page 97 and 98:
Call to Action • Must master Fram
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C#.Net Migration - A2Z Dotnet

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