Tries to read value and returns the value if successfully read. Otherwise return default value for value's type. - CSharp System.Collections

CSharp examples for System.Collections:IDictionary

  1. HOME
  2. CSharp
  3. System.Collections
  4. IDictionary

Description

Tries to read value and returns the value if successfully read. Otherwise return default value for value's type.

Demo Code


using System.Collections.Generic;

public class Main{
        /// <summary>
        /// Tries to read value and returns the value if successfully read. Otherwise return default value
        /// for value's type.
        /// </summary>
        /// <typeparam name="TKey"></typeparam>
        /// <typeparam name="TValue"></typeparam>
        /// <param name="dictionary"></param>
        /// <param name="key"></param>
        /// <returns></returns>
        public static TValue TryGetAndReturn<TKey, TValue>(this IDictionary<TKey, TValue> dictionary, TKey key)
        {/*w w  w  . j ava 2 s .co  m*/
            TValue retValue;
            if (!dictionary.TryGetValue(key, out retValue))
            {
                retValue = default(TValue);
            }
            return retValue;
        }
}

Related Tutorials