Parameters
- item
- The name to locate in the dictionary and its value.
Return Value
True if the dictionary contains an element with the name and value; otherwise, false.
Target Platforms: .NET 10; .NET 9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5