CollectionsMarshal.GetValueRefOrNullRef Method
Definition
Important
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Overloads
GetValueRefOrNullRef<TKey,TValue,TAlternateKey>(Dictionary<TKey,TValue>.AlternateLookup<TAlternateKey>, TAlternateKey) | |
GetValueRefOrNullRef<TKey,TValue>(Dictionary<TKey,TValue>, TKey) |
Gets either a reference to a |
GetValueRefOrNullRef<TKey,TValue,TAlternateKey>(Dictionary<TKey,TValue>.AlternateLookup<TAlternateKey>, TAlternateKey)
public:
generic <typename TKey, typename TValue, typename TAlternateKey>
static TValue % GetValueRefOrNullRef(System::Collections::Generic::Dictionary<TKey, TValue>::AlternateLookup<TAlternateKey> dictionary, TAlternateKey key);
public static ref TValue GetValueRefOrNullRef<TKey,TValue,TAlternateKey> (System.Collections.Generic.Dictionary<TKey,TValue>.AlternateLookup<TAlternateKey> dictionary, TAlternateKey key);
static member GetValueRefOrNullRef : System.Collections.Generic.Dictionary<'Key, 'Value>.AlternateLookup<'AlternateKey> * 'AlternateKey -> 'Value
Public Shared Function GetValueRefOrNullRef(Of TKey, TValue, TAlternateKey) (dictionary As Dictionary(Of TKey, TValue).AlternateLookup(Of TAlternateKey), key As TAlternateKey) As TValue
Type Parameters
- TKey
- TValue
- TAlternateKey
Parameters
- key
- TAlternateKey
Returns
Applies to
GetValueRefOrNullRef<TKey,TValue>(Dictionary<TKey,TValue>, TKey)
- Source:
- CollectionsMarshal.cs
- Source:
- CollectionsMarshal.cs
- Source:
- CollectionsMarshal.cs
Gets either a reference to a TValue
in the Dictionary<TKey,TValue> or a reference null
if it does not exist in the dictionary
.
public:
generic <typename TKey, typename TValue>
static TValue % GetValueRefOrNullRef(System::Collections::Generic::Dictionary<TKey, TValue> ^ dictionary, TKey key);
public static ref TValue GetValueRefOrNullRef<TKey,TValue> (System.Collections.Generic.Dictionary<TKey,TValue> dictionary, TKey key);
static member GetValueRefOrNullRef : System.Collections.Generic.Dictionary<'Key, 'Value> * 'Key -> 'Value
Public Shared Function GetValueRefOrNullRef(Of TKey, TValue) (dictionary As Dictionary(Of TKey, TValue), key As TKey) As TValue
Type Parameters
- TKey
The type of a key.
- TValue
The type of a value.
Parameters
- dictionary
- Dictionary<TKey,TValue>
The dictionary to get the ref to TValue
from.
- key
- TKey
The key used for lookup.
Returns
A reference to a TValue
in the Dictionary<TKey,TValue> or a reference null
if it does not exist in the dictionary
..
Remarks
Items should not be added or removed from the Dictionary<TKey,TValue> while the ref TValue
is in use.
The ref null
can be detected by calling System.Runtime.CompilerServices.Unsafe.IsNullRef<T>(T).
Applies to
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