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Tradução
Original
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Classe Hashtable
Namespace: System.Collections
Assembly: mscorlib (em mscorlib.dll)
O tipo Hashtable expõe os membros a seguir.
| Nome | Descrição | |
|---|---|---|
![]() ![]() | Hashtable() | |
![]() ![]() | Hashtable(IDictionary) | |
![]() ![]() | Hashtable(IEqualityComparer) | |
![]() ![]() | Hashtable(Int32) | |
![]() ![]() | Hashtable(IDictionary, IEqualityComparer) | |
![]() ![]() | Hashtable(IDictionary, Single) | |
![]() ![]() | Hashtable(IHashCodeProvider, IComparer) | Obsoleta. |
![]() ![]() | Hashtable(Int32, IEqualityComparer) | |
![]() ![]() | Hashtable(Int32, Single) | |
![]() | Hashtable(SerializationInfo, StreamingContext) | |
![]() ![]() | Hashtable(IDictionary, IHashCodeProvider, IComparer) | Obsoleta. |
![]() ![]() | Hashtable(IDictionary, Single, IEqualityComparer) | |
![]() ![]() | Hashtable(Int32, IHashCodeProvider, IComparer) | Obsoleta. |
![]() ![]() | Hashtable(Int32, Single, IEqualityComparer) | |
![]() | Hashtable(IDictionary, Single, IHashCodeProvider, IComparer) | Obsoleta. |
![]() | Hashtable(Int32, Single, IHashCodeProvider, IComparer) | Obsoleta. |
| Nome | Descrição | |
|---|---|---|
![]() ![]() | comparer | Obsoleta. |
![]() ![]() | Count | |
![]() ![]() | EqualityComparer | |
![]() ![]() | hcp | Obsoleta. |
![]() ![]() | IsFixedSize | |
![]() ![]() | IsReadOnly | |
![]() ![]() | IsSynchronized | |
![]() ![]() | Item | |
![]() ![]() | Keys | |
![]() ![]() | SyncRoot | |
![]() ![]() | Values |
| Nome | Descrição | |
|---|---|---|
![]() ![]() | Add | |
![]() ![]() | Clear | |
![]() ![]() | Clone | |
![]() ![]() | Contains | |
![]() ![]() | ContainsKey | |
![]() ![]() | ContainsValue | |
![]() ![]() | CopyTo | |
![]() ![]() | Equals(Object) | |
![]() ![]() | Finalize | |
![]() ![]() | GetEnumerator | |
![]() ![]() | GetHash | |
![]() ![]() | GetHashCode | |
![]() | GetObjectData | |
![]() ![]() | GetType | |
![]() ![]() | KeyEquals | |
![]() ![]() | MemberwiseClone | |
![]() | OnDeserialization | |
![]() ![]() | Remove | |
![]() ![]() ![]() | Synchronized | |
![]() ![]() | ToString |
| Nome | Descrição | |
|---|---|---|
![]() | AsParallel | |
![]() | AsQueryable | |
![]() ![]() | Cast<TResult> | |
![]() ![]() | OfType<TResult> |
| Nome | Descrição | |
|---|---|---|
![]() ![]() ![]() | IEnumerable.GetEnumerator |
Observação |
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using System; using System.Collections; class Example { public static void Main() { // Create a new hash table. // Hashtable openWith = new Hashtable(); // Add some elements to the hash table. There are no // duplicate keys, but some of the values are duplicates. openWith.Add("txt", "notepad.exe"); openWith.Add("bmp", "paint.exe"); openWith.Add("dib", "paint.exe"); openWith.Add("rtf", "wordpad.exe"); // The Add method throws an exception if the new key is // already in the hash table. try { openWith.Add("txt", "winword.exe"); } catch { Console.WriteLine("An element with Key = \"txt\" already exists."); } // The Item property is the default property, so you // can omit its name when accessing elements. Console.WriteLine("For key = \"rtf\", value = {0}.", openWith["rtf"]); // The default Item property can be used to change the value // associated with a key. openWith["rtf"] = "winword.exe"; Console.WriteLine("For key = \"rtf\", value = {0}.", openWith["rtf"]); // If a key does not exist, setting the default Item property // for that key adds a new key/value pair. openWith["doc"] = "winword.exe"; // ContainsKey can be used to test keys before inserting // them. if (!openWith.ContainsKey("ht")) { openWith.Add("ht", "hypertrm.exe"); Console.WriteLine("Value added for key = \"ht\": {0}", openWith["ht"]); } // When you use foreach to enumerate hash table elements, // the elements are retrieved as KeyValuePair objects. Console.WriteLine(); foreach( DictionaryEntry de in openWith ) { Console.WriteLine("Key = {0}, Value = {1}", de.Key, de.Value); } // To get the values alone, use the Values property. ICollection valueColl = openWith.Values; // The elements of the ValueCollection are strongly typed // with the type that was specified for hash table values. Console.WriteLine(); foreach( string s in valueColl ) { Console.WriteLine("Value = {0}", s); } // To get the keys alone, use the Keys property. ICollection keyColl = openWith.Keys; // The elements of the KeyCollection are strongly typed // with the type that was specified for hash table keys. Console.WriteLine(); foreach( string s in keyColl ) { Console.WriteLine("Key = {0}", s); } // Use the Remove method to remove a key/value pair. Console.WriteLine("\nRemove(\"doc\")"); openWith.Remove("doc"); if (!openWith.ContainsKey("doc")) { Console.WriteLine("Key \"doc\" is not found."); } } } /* This code example produces the following output: An element with Key = "txt" already exists. For key = "rtf", value = wordpad.exe. For key = "rtf", value = winword.exe. Value added for key = "ht": hypertrm.exe Key = dib, Value = paint.exe Key = txt, Value = notepad.exe Key = ht, Value = hypertrm.exe Key = bmp, Value = paint.exe Key = rtf, Value = winword.exe Key = doc, Value = winword.exe Value = paint.exe Value = notepad.exe Value = hypertrm.exe Value = paint.exe Value = winword.exe Value = winword.exe Key = dib Key = txt Key = ht Key = bmp Key = rtf Key = doc Remove("doc") Key "doc" is not found. */
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Função Server Core sem suporte), Windows Server 2008 R2 (Função Server Core com suporte com o SP1 ou posterior, Itanium sem suporte)
O .NET Framework não oferece suporte a todas as versões de cada plataforma. Para obter uma lista das versões com suporte, consulte .Requisitos de sistema do NET Framework.
