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.

Add

• Add(item): 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): 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): 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, item): 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): 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): 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

[iterator]

• [iterator](): Iterator<JsType<T>, any, undefined>

• Returns Iterator<JsType<T>, any, undefined>