## Definición

Determina si dos cadenas especificadas tienen valores diferentes.Determines whether two specified strings have different values.

``````public:
static bool operator !=(System::String ^ a, System::String ^ b);``````
``public static bool operator != (string a, string b);``
``static member op_Inequality : string * string -> bool``
``Public Shared Operator != (a As String, b As String) As Boolean``

#### Parámetros

a
String

Primera cadena que se va a comparar, o `null`.The first string to compare, or `null`.

b
String

Segunda cadena que se va a comparar, o `null`.The second string to compare, or `null`.

#### Devoluciones

Es `true` si el valor de `a` es diferente del valor de `b`; de lo contrario, es `false`.`true` if the value of `a` is different from the value of `b`; otherwise, `false`.

## Ejemplos

En el siguiente ejemplo se muestra el operador de desigualdad.The following example demonstrates the inequality operator.

``````// Example for the String Inequality operator.
using namespace System;
void CompareAndDisplay( String^ Comparand )
{
String^ Lower = "abcd";
Console::WriteLine( "\"{0}\" != \"{1}\" ?  {2}", Lower, Comparand, Lower != Comparand );
}

int main()
{
Console::WriteLine( "This example of the String Inequality operator\n"
"generates the following output.\n" );
CompareAndDisplay( "ijkl" );
CompareAndDisplay( "ABCD" );
CompareAndDisplay( "abcd" );
}

/*
This example of the String Inequality operator
generates the following output.

"abcd" != "ijkl" ?  True
"abcd" != "ABCD" ?  True
"abcd" != "abcd" ?  False
*/
``````
``````// Example for the String Inequality operator.
using System;

class InequalityOp
{
public static void Main()
{
Console.WriteLine(
"This example of the String Inequality operator\n" +
"generates the following output.\n" );

CompareAndDisplay( "ijkl" );
CompareAndDisplay( "ABCD" );
CompareAndDisplay( "abcd" );
}

static void CompareAndDisplay( String Comparand )
{
String  Lower = "abcd";

Console.WriteLine(
"\"{0}\" != \"{1}\" ?  {2}",
Lower, Comparand, Lower != Comparand );
}
}

/*
This example of the String Inequality operator
generates the following output.

"abcd" != "ijkl" ?  True
"abcd" != "ABCD" ?  True
"abcd" != "abcd" ?  False
*/
``````

## Comentarios

El método Inequality define la operación del operador de desigualdad para la clase String.The Inequality method defines the operation of the inequality operator for the String class. Habilita código como el que se muestra en la sección ejemplos.It enables code such as that shown in the Examples section.

A su vez, el operador Inequality llama al método de Equals(String, String) estático, que realiza una comparación ordinal (con distinción de mayúsculas y minúsculas y sin distinción de referencias culturales).The Inequality operator in turn calls the static Equals(String, String) method, which performs an ordinal (case-sensitive and culture-insensitive) comparison.

Nota

El compilador Visual Basic no resuelve el operador de desigualdad como una llamada al método Inequality.The Visual Basic compiler does not resolve the inequality operator as a call to the Inequality method. En su lugar, el operador de desigualdad contiene una llamada al método Operators.CompareString.Instead, the inequality operator wraps a call to the Operators.CompareString method.