Class VOption

This class wraps a Dictionary<TKey, TValue>. This is used to call functions with optional arguments. See Call(string, VOption, params object[]).

Inheritance

object

VOption

Implements

IEnumerable<KeyValuePair<string, object>>

IEnumerable

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: NetVips

Assembly: NetVips.dll

Syntax

public class VOption : IEnumerable<KeyValuePair<string, object>>, IEnumerable

Properties

Count

Gets the number of key/value pairs contained in the _internalDictionary.

Declaration

public int Count { get; }

Property Value

Type	Description
int	The number of key/value pairs contained in the _internalDictionary.

this[string]

Gets or sets the value associated with the specified key.

Declaration

public object this[string key] { get; set; }

Parameters

Type	Name	Description
string	key	The key of the value to get or set.

Property Value

Type	Description
object	The value associated with the specified key.

Keys

Gets a collection containing the keys in the _internalDictionary.

Declaration

public Dictionary<string, object>.KeyCollection Keys { get; }

Property Value

Type	Description
Dictionary<string, object>.KeyCollection

Methods

Add(string, object)

Adds the specified key and value to the _internalDictionary.

Declaration

public void Add(string key, object value)

Parameters

Type	Name	Description
string	key	The key of the element to add.
object	value	The value of the element to add. The value can be null for reference types.

AddIfPresent<T>(string, T?)

Adds the specified key and value to the _internalDictionary, if value is present.

Declaration

public void AddIfPresent<T>(string key, T? value) where T : struct

Parameters

Type	Name	Description
string	key	The key of the element to add.
T?	value	The value of the element to add.

Type Parameters

Name	Description
T

AddIfPresent<T>(string, T)

Adds the specified key and class to the _internalDictionary, if class is present.

Declaration

public void AddIfPresent<T>(string key, T cls) where T : class

Parameters

Type	Name	Description
string	key	The key of the element to add.
T	cls	The value of the element to add.

Type Parameters

Name	Description
T

AddIfPresent<T>(string, T[])

Adds the specified key and array to the _internalDictionary, if array is present.

Declaration

public void AddIfPresent<T>(string key, T[] array) where T : struct

Parameters

Type	Name	Description
string	key	The key of the element to add.
T[]	array	The value of the element to add.

Type Parameters

Name	Description
T

ContainsKey(string)

Determines whether the _internalDictionary contains the specified key.

Declaration

public bool ContainsKey(string key)

Parameters

Type	Name	Description
string	key	The key to locate in the _internalDictionary.

Returns

Type	Description
bool	true if the _internalDictionary contains an element with the specified key; otherwise, false.

GetEnumerator()

Returns an enumerator that iterates through the _internalDictionary.

Declaration

public IEnumerator<KeyValuePair<string, object>> GetEnumerator()

Returns

Type	Description
IEnumerator<KeyValuePair<string, object>>	A Dictionary<TKey, TValue>.Enumerator structure for the _internalDictionary.

Remove(string)

Removes the value with the specified key from the _internalDictionary.

Declaration

public bool Remove(string key)

Parameters

Type	Name	Description
string	key	The key of the element to remove.

Returns

Type	Description
bool	true if the element is successfully found and removed; otherwise, false.

TryGetValue(string, out object)

Gets the value associated with the specified key.

Declaration

public bool TryGetValue(string key, out object value)

Parameters

Type	Name	Description
string	key	The key of the value to get.
object	value	When this method returns, contains the value associated with the specified key, if the key is found; otherwise, the default value for the type of the value parameter. This parameter is passed uninitialized.

Returns

Type	Description
bool	true if the _internalDictionary contains an element with the specified key; otherwise, false.

Implements

IEnumerable<T>

IEnumerable