Effective C#50 Specific Ways to Improve Your C# Second Edition phần 6 pptx
Effective C#50 Specific Ways to Improve Your C# Second Edition phần 1 ppt
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Effective C#
50 Specific Ways to Improve
Your C#
Second Edition
Bill Wagner
Upper Saddle River, NJ • Boston • Indianapolis • San Francisco
New York • Toronto • Montreal • London ... you. You likely need to attempt to cast those objects
to other types, either classes or interfaces. You’ve got two choices: Use the
as operator or force the compiler t...
Effective C#50 Specific Ways to Improve Your C# Second Edition phần 2 pptx
...
"SomeSample.Size" is not what you want to display to your users. But that’s
what you get when you don’t override ToString() in your classes. You write
a class once, but your clients use it many times. ...
}
#endregion
// Nested class to provide the
// custom formatting for the Customer class.
private class CustomerFormatProvider : ICustomFormatter
{
#region ICust...
Effective C#50 Specific Ways to Improve Your C# Second Edition phần 3 docx
... are, stop it. Veteran C++ programmers would
factor the common algorithms into a private helper method. Stop that,
too. When you find that multiple constructors contain the same logic, fac-
tor ... logic to
initialize static member variables, create a static constructor.
Implementing the singleton pattern in C# is the most frequent use of a
static constructor. Make your instance const...
Effective C#50 Specific Ways to Improve Your C# Second Edition phần 4 pdf
... structure refers to the same array storage (phones) allocated
outside the object. Developers can modify your immutable structure
through another variable that refers to the same storage. To remove ... meant to store data values, value types are the way to go.
The decision to make a value type or a reference type is an important one.
It is a far-reaching change to turn a val...
Effective C#50 Specific Ways to Improve Your C# Second Edition phần 6 pptx
... Relational Operators.
public static bool operator <(Customer left,
Customer right)
{
return left.CompareTo(right) < 0;
}
public static bool operator <=(Customer left,
Customer right) ... (!(obj is Customer))
throw new ArgumentException(
"Argument is not a Customer", "obj");
Customer otherCustomer = (Customer)obj;
return this.CompareTo(otherCustomer);
}
#en...
Effective C#50 Specific Ways to Improve Your C# Second Edition phần 7 ppt
... enumerator. The first call to MoveNext() executes the query on enough
elements to retrieve the first element on the result sequence (which hap-
pens to be one element for this query). The next call to ... elided.
}
}
This is a problem. Your base class snuck a method underneath your class’s
naming scope. There are two ways to fix this. You could change that
name of your Norm...
Effective C#50 Specific Ways to Improve Your C# Second Edition phần 8 pps
... example showed you how to parse expressions to convert code (or
at least expressions that define code) into data elements you can use to
implement runtime algorithms. The second example shows ... much work to do.
Implementing dynamic behavior can be a great way to approach some of
your programming challenges. When you look at creating dynamic types,
your first choice should be...
Effective C#50 Specific Ways to Improve Your C# 2nd phần 3 pps
... static
constructors are called. And, yes, your static initializers execute before the
base class’s static constructor.
The CLR calls your static constructor automatically before your type is
first ... complicated logic to initialize the singleton:
public class MySingleton2
{
private static readonly MySingleton2 theOneAndOnly;
static MySingleton2()
{
theOneAndOnly = new MySingleton2...
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