Tuple<T1, T2>.Equals Method
Returns a value that indicates whether the current Tuple<T1, T2> object is equal to a specified object.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Parameters
- obj
- Type: System.Object
The object to compare with this instance.
Return Value
Type: System.Booleantrue if the current instance is equal to the specified object; otherwise, false.
The obj parameter is considered to be equal to the current instance under the following conditions:
It is a Tuple<T1, T2> object.
Its two components are of the same types as the current instance.
Its two components are equal to those of the current instance. Equality is determined by the default object equality comparer for each component.
The following example calls the Tuple<T1, T2>.Equals(Object) method to determine whether any of the objects in an array of Tuple<T1, T2> objects are equal to one another. The output reflects the fact that the Equals(Object) method returns true when comparing Tuple<T1, T2> objects whose components have equal values.
using System; public class Example { public static void Main() { Tuple<string, Nullable<int>>[] scores = { new Tuple<string, Nullable<int>>("Dan", 90), new Tuple<string, Nullable<int>>("Ernie", null), new Tuple<string, Nullable<int>>("Jill", 88), new Tuple<string, Nullable<int>>("Ernie", null), new Tuple<string, Nullable<int>>("Nancy", 88), new Tuple<string, Nullable<int>>("Dan", 90) }; // Compare the Tuple objects for (int ctr = 0; ctr < scores.Length; ctr++) { Tuple<string, Nullable<int>> currentTuple = scores[ctr]; for (int innerCtr = ctr + 1; innerCtr < scores.Length; innerCtr++) { Console.WriteLine("{0} = {1}: {2}", scores[ctr], scores[innerCtr], scores[ctr].Equals(scores[innerCtr])); } Console.WriteLine(); } } } // The example displays the following output: // (Dan, 90) = (Ernie, ): False // (Dan, 90) = (Jill, 88): False // (Dan, 90) = (Ernie, ): False // (Dan, 90) = (Nancy, 88): False // (Dan, 90) = (Dan, 90): True // // (Ernie, ) = (Jill, 88): False // (Ernie, ) = (Ernie, ): True // (Ernie, ) = (Nancy, 88): False // (Ernie, ) = (Dan, 90): False // // (Jill, 88) = (Ernie, ): False // (Jill, 88) = (Nancy, 88): False // (Jill, 88) = (Dan, 90): False // // (Ernie, ) = (Nancy, 88): False // (Ernie, ) = (Dan, 90): False // // (Nancy, 88) = (Dan, 90): False
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
