Array::Find<T> Method
Searches for an element that matches the conditions defined by the specified predicate, and returns the first occurrence within the entire Array.
Assembly: mscorlib (in mscorlib.dll)
Type Parameters
- T
The type of the elements of the array.
Parameters
- array
- Type: array<T>
The one-dimensional, zero-based Array to search.
- match
- Type: System::Predicate<T>
The Predicate<T> that defines the conditions of the element to search for.
Return Value
Type: TThe first element that matches the conditions defined by the specified predicate, if found; otherwise, the default value for type T.
| Exception | Condition |
|---|---|
| ArgumentNullException | array is nullptr. -or- match is nullptr. |
The Predicate<T> is a delegate to a method that returns true if the object passed to it matches the conditions defined in the delegate. The elements of array are individually passed to the Predicate<T>, moving forward in the Array, starting with the first element and ending with the last element. Processing is stopped when a match is found.
This method is an O(n) operation, where n is the Length of array.
The following code example uses a Predicate<T> delegate with the Find<T> generic method to search an array of Point structures. The method the delegate represents, ProductGT10, returns true if the product of the X and Y fields is greater than 100,000. The Find<T> method calls the delegate for each element of the array, returning the first point that meets the test condition.
Note |
|---|
Visual Basic and C# users do not need to create the delegate explicitly, or to specify the type argument of the generic method. The compilers determine the necessary types from the method arguments you supply. |
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Note