ConsoleKeyInfo.Equals ConsoleKeyInfo.Equals ConsoleKeyInfo.Equals ConsoleKeyInfo.Equals Method

Definizione

Ottiene un valore che indica se un oggetto o un oggetto ConsoleKeyInfo specificato è uguale all'oggetto ConsoleKeyInfo corrente.Gets a value indicating whether an object or specified ConsoleKeyInfo object is equal to the current ConsoleKeyInfo object.

Overload

Equals(ConsoleKeyInfo) Equals(ConsoleKeyInfo) Equals(ConsoleKeyInfo) Equals(ConsoleKeyInfo)

Ottiene un valore che indica se l'oggetto ConsoleKeyInfo corrente è uguale all'oggetto ConsoleKeyInfo corrente.Gets a value indicating whether the specified ConsoleKeyInfo object is equal to the current ConsoleKeyInfo object.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Ottiene un valore che indica se l'oggetto specificato è uguale all'oggetto ConsoleKeyInfo corrente.Gets a value indicating whether the specified object is equal to the current ConsoleKeyInfo object.

Equals(ConsoleKeyInfo) Equals(ConsoleKeyInfo) Equals(ConsoleKeyInfo) Equals(ConsoleKeyInfo)

Ottiene un valore che indica se l'oggetto ConsoleKeyInfo corrente è uguale all'oggetto ConsoleKeyInfo corrente.Gets a value indicating whether the specified ConsoleKeyInfo object is equal to the current ConsoleKeyInfo object.

public:
 bool Equals(ConsoleKeyInfo obj);
public bool Equals (ConsoleKeyInfo obj);
override this.Equals : ConsoleKeyInfo -> bool
Public Function Equals (obj As ConsoleKeyInfo) As Boolean

Parametri

obj
ConsoleKeyInfo ConsoleKeyInfo ConsoleKeyInfo ConsoleKeyInfo

Oggetto da confrontare con l'oggetto ConsoleKeyInfo corrente.An object to compare to the current ConsoleKeyInfo object.

Restituisce

true se obj è uguale all'oggetto ConsoleKeyInfo corrente; in caso contrario, false.true if obj is equal to the current ConsoleKeyInfo object; otherwise, false.

Commenti

Due ConsoleKeyInfo gli oggetti sono uguali se i relativi KeyChar, Key, e Modifiers proprietà sono uguali.Two ConsoleKeyInfo objects are equal if their corresponding KeyChar, Key, and Modifiers properties are equal.

Il Equals metodo offre prestazioni leggermente migliori rispetto al ConsoleKeyInfo.Equals(Object) metodo perché non è necessario convertire obj a un oggetto.The Equals method performs slightly better than the ConsoleKeyInfo.Equals(Object) method because it does not have to convert obj to an object.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Ottiene un valore che indica se l'oggetto specificato è uguale all'oggetto ConsoleKeyInfo corrente.Gets a value indicating whether the specified object is equal to the current ConsoleKeyInfo object.

public:
 override bool Equals(System::Object ^ value);
public override bool Equals (object value);
override this.Equals : obj -> bool
Public Overrides Function Equals (value As Object) As Boolean

Parametri

value
Object Object Object Object

Oggetto da confrontare con l'oggetto ConsoleKeyInfo corrente.An object to compare to the current ConsoleKeyInfo object.

Restituisce

true se value è un oggetto ConsoleKeyInfo ed è uguale all'oggetto ConsoleKeyInfo corrente; in caso contrario, false.true if value is a ConsoleKeyInfo object and is equal to the current ConsoleKeyInfo object; otherwise, false.

Esempi

Nell'esempio seguente viene illustrato il Equals (metodo).The following example demonstrates the Equals method.

using namespace System;
using namespace System::Text;

static String^ KeyCombination(ConsoleKeyInfo sourceCki);

void main()
{
   String^ k1 = "\nEnter a key ......... ";
   String^ k2 = "\nEnter another key ... ";
   String^ key1 = "";
   String^ key2 = "";
   String^ areKeysEqual = "The {0} and {1} keys are {2}equal.";
   String^ equalValue = "";
   String^ prompt = "Press the escape key (ESC) to quit, " + 
                    "or any other key to continue.";
   ConsoleKeyInfo cki1;
   ConsoleKeyInfo cki2;
   //
   // The Console.TreatControlCAsInput property prevents this example from
   // ending if you press CTL+C, however all other operating system keys and 
   // shortcuts, such as ALT+TAB or the Windows Logo key, are still in effect. 
   //
    Console::TreatControlCAsInput = true;

   // Request that the user enter two key presses. A key press and any 
   // combination shift, CTRL, and ALT modifier keys is permitted.
   do 
   {
      Console::Write(k1);
      cki1 = Console::ReadKey(false);
      Console::Write(k2);
      cki2 = Console::ReadKey(false);
      Console::WriteLine();

      key1 = KeyCombination(cki1);
      key2 = KeyCombination(cki2);
      if (cki1.Equals(cki2))
         equalValue = "";
      else
         equalValue = "not ";
      
      Console::WriteLine(areKeysEqual, key1, key2, equalValue);

      Console::WriteLine(prompt);
      cki1 = Console::ReadKey(true);
   } while (cki1.Key != ConsoleKey::Escape);
// Note: This example requires the Escape (Esc) key.
}

// The KeyCombination() method creates a string that specifies what 
// key and what combination of shift, CTRL, and ALT modifier keys 
// were pressed simultaneously.

static String^ KeyCombination(ConsoleKeyInfo sourceCki)
{
   StringBuilder^ sb = gcnew StringBuilder();
   sb->Length = 0;
   String^ keyCombo;
   if (sourceCki.Modifiers != ConsoleModifiers())
   {
   if ((sourceCki.Modifiers & ConsoleModifiers::Alt) != ConsoleModifiers())
      sb->Append("ALT+");
   if ((sourceCki.Modifiers & ConsoleModifiers::Shift) != ConsoleModifiers())
      sb->Append("SHIFT+");
   if ((sourceCki.Modifiers & ConsoleModifiers::Control) != ConsoleModifiers())
      sb->Append("CTL+");
   }
   sb->Append(sourceCki.Key.ToString());
   keyCombo = sb->ToString();
   return keyCombo;
}
/*
This example produces results similar to the following output:

Enter a key ......... a
Enter another key ... a
The A and A keys are equal.
Press the escape key (ESC) to quit, or any other key to continue.

Enter a key ......... a
Enter another key ... A
The A and SHIFT+A keys are not equal.
Press the escape key (ESC) to quit, or any other key to continue.

Enter a key ......... S
Enter another key ...
The ALT+SHIFT+S and ALT+CTL+F keys are not equal.
Press the escape key (ESC) to quit, or any other key to continue.

Enter a key .........
Enter another key ...
The UpArrow and UpArrow keys are equal.
Press the escape key (ESC) to quit, or any other key to continue.

*/
// This example demonstrates the ConsoleKeyInfo.Equals() method.

using System;
using System.Text;

class Sample 
{
    public static void Main() 
    {
    string k1 = "\nEnter a key ......... ";
    string k2 = "\nEnter another key ... ";
    string key1 = "";
    string key2 = "";
    string areKeysEqual = "The {0} and {1} keys are {2}equal.";
    string equalValue = "";
    string prompt = "Press the escape key (ESC) to quit, " + 
                    "or any other key to continue.";
    ConsoleKeyInfo cki1;
    ConsoleKeyInfo cki2;


//
// The Console.TreatControlCAsInput property prevents this example from
// ending if you press CTL+C, however all other operating system keys and 
// shortcuts, such as ALT+TAB or the Windows Logo key, are still in effect. 
//
    Console.TreatControlCAsInput = true;

// Request that the user enter two key presses. A key press and any 
// combination shift, CTRL, and ALT modifier keys is permitted.
    do 
    {
        Console.Write(k1);
        cki1 = Console.ReadKey(false);
        Console.Write(k2);
        cki2 = Console.ReadKey(false);
        Console.WriteLine();
//
        key1 = KeyCombination(cki1);
        key2 = KeyCombination(cki2);
        if (cki1.Equals(cki2))
            equalValue = "";
        else
            equalValue = "not ";
        Console.WriteLine(areKeysEqual, key1, key2, equalValue);
//
        Console.WriteLine(prompt);
        cki1 = Console.ReadKey(true);
    } while (cki1.Key != ConsoleKey.Escape);
// Note: This example requires the Escape (Esc) key.
    }

// The KeyCombination() method creates a string that specifies what 
// key and what combination of shift, CTRL, and ALT modifier keys 
// were pressed simultaneously.

    protected static string KeyCombination(ConsoleKeyInfo sourceCki)
    {
    StringBuilder sb = new StringBuilder();
    sb.Length = 0;
    string keyCombo;
    if (sourceCki.Modifiers != 0)
        {
        if ((sourceCki.Modifiers & ConsoleModifiers.Alt) != 0)
            sb.Append("ALT+");
        if ((sourceCki.Modifiers & ConsoleModifiers.Shift) != 0)
            sb.Append("SHIFT+");
        if ((sourceCki.Modifiers & ConsoleModifiers.Control) != 0)
            sb.Append("CTL+");
        }
    sb.Append(sourceCki.Key.ToString());
    keyCombo = sb.ToString();
    return keyCombo;
    }
}

/*
This example produces results similar to the following output:

Enter a key ......... a
Enter another key ... a
The A and A keys are equal.
Press the escape key (ESC) to quit, or any other key to continue.

Enter a key ......... a
Enter another key ... A
The A and SHIFT+A keys are not equal.
Press the escape key (ESC) to quit, or any other key to continue.

Enter a key ......... S
Enter another key ...
The ALT+SHIFT+S and ALT+CTL+F keys are not equal.
Press the escape key (ESC) to quit, or any other key to continue.

Enter a key .........
Enter another key ...
The UpArrow and UpArrow keys are equal.
Press the escape key (ESC) to quit, or any other key to continue.

*/
' This example demonstrates the ConsoleKeyInfo.Equals() method.
Imports System
Imports System.Text

Class Sample
    Public Shared Sub Main() 
        Dim k1 As String = vbCrLf & "Enter a key ......... "
        Dim k2 As String = vbCrLf & "Enter another key ... "
        Dim key1 As String = ""
        Dim key2 As String = ""
        Dim areKeysEqual As String = "The {0} and {1} keys are {2}equal."
        Dim equalValue As String = ""
        Dim prompt As String = "Press the escape key (ESC) to quit, " & _
                               "or any other key to continue."
        Dim cki1 As ConsoleKeyInfo
        Dim cki2 As ConsoleKeyInfo
        
        '
        ' The Console.TreatControlCAsInput property prevents this example from
        ' ending if you press CTL+C, however all other operating system keys and 
        ' shortcuts, such as ALT+TAB or the Windows Logo key, are still in effect. 
        '
        Console.TreatControlCAsInput = True
        
        ' Request that the user enter two key presses. A key press and any 
        ' combination shift, CTRL, and ALT modifier keys is permitted.
        Do
            Console.Write(k1)
            cki1 = Console.ReadKey(False)
            Console.Write(k2)
            cki2 = Console.ReadKey(False)
            Console.WriteLine()
            '
            key1 = KeyCombination(cki1)
            key2 = KeyCombination(cki2)
            If cki1.Equals(cki2) Then
                equalValue = ""
            Else
                equalValue = "not "
            End If
            Console.WriteLine(areKeysEqual, key1, key2, equalValue)
            '
            Console.WriteLine(prompt)
            cki1 = Console.ReadKey(True)
        Loop While cki1.Key <> ConsoleKey.Escape
    
    End Sub 'Main
    ' Note: This example requires the Escape (Esc) key.
    
    ' The KeyCombination() method creates a string that specifies what 
    ' key and what combination of shift, CTRL, and ALT modifier keys 
    ' were pressed simultaneously.
    Protected Shared Function KeyCombination(ByVal sourceCki As ConsoleKeyInfo) As String 
        Dim sb As New StringBuilder()
        sb.Length = 0
        Dim keyCombo As String
        If sourceCki.Modifiers <> 0 Then
            If(sourceCki.Modifiers And ConsoleModifiers.Alt) <> 0 Then
                sb.Append("ALT+")
            End If
            If(sourceCki.Modifiers And ConsoleModifiers.Shift) <> 0 Then
                sb.Append("SHIFT+")
            End If
            If(sourceCki.Modifiers And ConsoleModifiers.Control) <> 0 Then
                sb.Append("CTL+")
            End If
        End If
        sb.Append(sourceCki.Key.ToString())
        keyCombo = sb.ToString()
        Return keyCombo
    
    End Function 'KeyCombination
End Class 'Sample

'
'This example produces results similar to the following output:
'
'Enter a key ......... a
'Enter another key ... a
'The A and A keys are equal.
'Press the escape key (ESC) to quit, or any other key to continue.
'
'Enter a key ......... a
'Enter another key ... A
'The A and SHIFT+A keys are not equal.
'Press the escape key (ESC) to quit, or any other key to continue.
'
'Enter a key ......... S
'Enter another key ...
'The ALT+SHIFT+S and ALT+CTL+F keys are not equal.
'Press the escape key (ESC) to quit, or any other key to continue.
'
'Enter a key .........
'Enter another key ...
'The UpArrow and UpArrow keys are equal.
'Press the escape key (ESC) to quit, or any other key to continue.
'

Commenti

Due ConsoleKeyInfo gli oggetti sono uguali se i relativi KeyChar, Key, e Modifiers proprietà sono uguali.Two ConsoleKeyInfo objects are equal if their corresponding KeyChar, Key, and Modifiers properties are equal.

Si applica a