C#

BillWoodruff wrote:

"bad practices"

BillWoodruff wrote:

interesting you cannot use the "==" operator on two instances of a struct

public class TestClass
{
    private int value;

    public TestClass(int value)
    {
        this.value = value;
    }

    public int Value
    {
        get { return value; }
    }

    public static bool operator ==(TestClass first, TestClass second)
    {
        bool result = false;
        if (object.ReferenceEquals(first, second))
            result = true;
        else
            if (!(object.ReferenceEquals(null, first) || object.ReferenceEquals(null, second)))
                result = first.value == second.value;
        return result;
    }
    public static bool operator !=(TestClass first, TestClass second)
    {
        return !(first == second);
    }
    public override bool Equals(object obj)
    {
        bool result = false;
        TestClass other = obj as TestClass;
        if (!object.ReferenceEquals(null, other))
            result = value == other.value;
        return result;
    }
    public override int GetHashCode()
    {
        return value;
    }
}

public struct TestStruct
    {
        private int value;

        public TestStruct(int value)
        {
            this.value = value;
        }

        public int Value
        {
            get { return value; }
        }

        public static bool operator ==(TestStruct first, TestStruct second)
        {
            return first.value == second.value;
        }
        public static bool operator !=(TestStruct first, TestStruct second)
        {
            return !(first == second);
        }
        public override bool Equals(object obj)
        {
            bool result = false;
            if (obj is TestStruct)
                result = value == ((TestStruct)obj).value;
            return result;
        }
        public override int GetHashCode()
        {
            return value;
        }
    }

public static operator==(MyType a, MyType b){
 return ((object)a == null) ? (object)b == null : a.Equals(b);
}

public override bool Equals(object o){
 MyType b = o as MyType;
 if(b == null) return false;
 else if((object)b == this) return true; // reference equal
 
 return (field1 == b.field1) && // ...
}

overloaded Name wrote:

I know basics for Network programming or Socket Programming but I dont know where to start for programming basic internet protocols.

Bastard Programmer from Hell

Eddy Vluggen claims to be:

Bastard Programmer from Hell Holland

beh7606 wrote:

but when i delete, my app notify that it already delete..when i recheck again..the file still available but it cannot be opened..window prompt "the file is not exist..do u want to create new"

 

i google and found that i is bcos of the file is being shared between 2 activity which is, system watcher and stream reader...

 

can anyone help me how can i solve my problem...??

Bastard Programmer from Hell

File.WriteAllText("someFolder\semaphore.dat", "there is a new file called someFolder\myActualDataFile.txt");

using (StreamWriter swFromFile = new StreamWriter(logFileName)) {
    swFromFile.Write(textToAdd);
    ...
    swFromFile.Write(textToAdd);
} // file is closed properly by "using" which calls Dispose behind the scenes

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