.NET Coding Best Practices

int Count;
Count = 100;
if(  Count  ==  0 )
{
 // DO something…
}

int Count;
Count = 100;
private static const int ZERO  =  0;
if(  Count  ==  ZERO )
 {
   // DO something…
 }

1. Other advantage of making the scope private by default is that during XMLSerilaization, by default it will serialize all the public members.
   

String  temp = String.Empty;
for( int I = 0 ; I<= 100; i++)
{
  Temp += i.ToString();
}

StringBuilder sb = new StringBuilder();
for ( int I = 0 ; I<= 100; i++)
 {
   sb.Append(i.ToString());
  }

int Check = 0;
if(Check == 0)
 {
   // DO something
  }

bool Check = false;
if(!Check)
  {
    // DO something
  }

class A
 {
 }

class B : A
 {
 }

B objB = new B();
A objA1  = (A) objB;
A objA 2 = objB as A;

if( objA2 != null)
{
 //Do something
}

using(Cerate the proxy)
 {
   //Do the required operation
  }

class MyData
 {
     public MyData()
       {
       }
     public List<Customer> GetAllCustomer()
       {
       using(SqlConnection objConnection = new SqlConnection("Connection string"))
         {
           //Do the operation and get the required data..
         }
       }
}

class MyData : IDisposable
 {
    SqlConnection objConnection = default(SqlCOnnection);
    public MyData(){
      objConnection = new SqlCOnnection("Connection string");
    }
    public List<Customer> GetAllCustomer(){
      // By using objConnection get the required data
    }
    public void Dispose(){
     // Do the cleanup of SqlCOnnection
     if( objConnection != null ){
        if( objConnection.State == ConnectionState.Open){
       objConnection.Close();
        }
     }
   }
}

for( int i = 0; i<= 100; i++)
{
	Calculate(i);
}

for( int i = 0; i<= 100; i++)
{
  //Inline the body of Calculate.
}

for(int i = 0 ; i<= 100; i++){
   try{
   }
   catch(Exception ex){
      throw ex;
   }
}

try{
  for(int i = 0 ; i<= 100; i++){
  }
}
catch(Exception ex){
 throw ex;
}

try{
  int  x,y,z;
  x = 0;
  y = 10;
  z = y/x;
 }
catch(DevideByZeroException ex){
  throw ex;
}

private static const int ZERO  =  0;
try{
  int x,y,z;
  x = 0;
  y = 10;
  if( x != ZERO){
    z = y/x;
  }
 }
catch(Exception ex){
 }