Class Collection<T>

ReadonlyItem

Count

• get Count(): number

  Gets the number of elements actually contained in the System.Collections.ObjectModel.Collection.

  Returns number

  The number of elements actually contained in the System.Collections.ObjectModel.Collection.

[iterator]

• "[iterator]"(): Iterator<JsType<T>>

  Returns Iterator<JsType<T>>

Add

• Add(item: T | JsType<T>): void

  Adds an object to the end of the System.Collections.ObjectModel.Collection.

  Parameters

  • item: T | JsType<T>

    The object to be added to the end of the System.Collections.ObjectModel.Collection. The value can be null for reference types.

  Returns void

Clear

• Clear(): void

  Removes all elements from the System.Collections.ObjectModel.Collection.

  Returns void

Contains

• Contains(item: T | JsType<T>): boolean

  Determines whether an element is in the System.Collections.ObjectModel.Collection.

  Parameters

  • item: T | JsType<T>

    The object to locate in the System.Collections.ObjectModel.Collection. The value can be null for reference types.

  Returns boolean

  true if item is found in the System.Collections.ObjectModel.Collection; otherwise, false.

IndexOf

• IndexOf(item: T | JsType<T>): number

  Searches for the specified object and returns the zero-based index of the first occurrence within the entire System.Collections.ObjectModel.Collection.

  Parameters

  • item: T | JsType<T>

    The object to locate in the System.Collections.Generic.List. The value can be null for reference types.

  Returns number

  The zero-based index of the first occurrence of item within the entire System.Collections.ObjectModel.Collection, if found; otherwise, -1.

Insert

• Insert(index: number | Int32, item: T | JsType<T>): void

  Inserts an element into the System.Collections.ObjectModel.Collection at the specified index.

  Parameters

  • index: number | Int32

    The zero-based index at which item should be inserted.

  • item: T | JsType<T>

    The object to insert. The value can be null for reference types.

  Returns void

Remove

• Remove(item: T | JsType<T>): boolean

  Removes the first occurrence of a specific object from the System.Collections.ObjectModel.Collection.

  Parameters

  • item: T | JsType<T>

    The object to remove from the System.Collections.ObjectModel.Collection. The value can be null for reference types.

  Returns boolean

  true if item is successfully removed; otherwise, false. This method also returns false if item was not found in the original System.Collections.ObjectModel.Collection.

RemoveAt

• RemoveAt(index: number | Int32): void

  Removes the element at the specified index of the System.Collections.ObjectModel.Collection.

  Parameters

  • index: number | Int32

    The zero-based index of the element to remove.

  Returns void