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IndexOf Method

MatrixKeyFrameCollection.IndexOf Method

Searches for the specified MatrixKeyFrame and returns the zero-based index of the first occurrence within the entire collection.

Namespace:  System.Windows.Media.Animation
Assembly:  PresentationCore (in PresentationCore.dll)

public int IndexOf(
	MatrixKeyFrame keyFrame
)

Parameters

keyFrame
Type: System.Windows.Media.Animation.MatrixKeyFrame

The MatrixKeyFrame to locate in the collection.

Return Value

Type: System.Int32
The zero-based index of the first occurrence of keyFrame within the entire collection, if found; otherwise, -1.

The collection is searched forward starting at the first key frame and ending at the last key frame.

This method performs a linear search; therefore, the average execution time is proportional to Count. That is, this method is an O(n) operation, where n is Count.

This method determines equality by calling Object.Equals.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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