Get a specific field of the current type C#

To get a specific field of the current type in C#, the code is as follows −

Example

 Live Demo

using System; using System.Reflection; public class Demo {    public static void Main() {    Type type = typeof(Subject);       try {          FieldInfo fieldInfo = type.GetField("SubName");          Console.WriteLine("FieldInfo = {0}", fieldInfo);       }       catch (ArgumentNullException e) {          Console.Write("{0}", e.GetType(), e.Message);       }    } } public class Subject {    public string SubName = "Science"; }

Output

This will produce the following output −

FieldInfo = System.String SubName

Example

Let us see another example −

 Live Demo

using System; using System.Reflection; public class Demo {    public static void Main() {       Type type = typeof(Subject);       try {          FieldInfo fieldInfo = type.GetField(null);          Console.WriteLine("FieldInfo = {0}", fieldInfo);       }       catch (ArgumentNullException e) {          Console.Write("{0}", e.GetType(), e.Message);       }    } } public class Subject {    public string SubName = "Science"; }

Output

This will produce the following output −

System.ArgumentNullException