TryGetValue returns Null even though key exists

Question

I'm using TryGetValue to get value from dictionary but the out value returns Null even though the key and value exisist in the dictionary. Do anyone know about the issue?

Laxmidhar Sahoo · Answer

Hi Bellow is the example public static void dictionarydemo() { Dictionary int , string > dict = new Dictionary int , string >() { {1, "One" }, {2, "Two" }, {3, "Three" } }; string result; if (dict.TryGetValue(4, out result)) { Console.WriteLine(result); } else { Console.WriteLine( "Could not find the specified key." ); } if (dict.TryGetValue(3, out result)) { Console.WriteLine(result); } else { Console.WriteLine( "Could not find the specified key." ); } } Thanks and regards

Jenith Thakkar · Answer

Please provide code

Jin Necesario · Answer

Hi Jenith, Learning the concepts of C# dictionary is sometimes confusing, even me sometimes I get confused. I do suggest that you read a good article about dictionaries using C#. Just click this link: https://www.c-sharpcorner.com/article/dictionary-using-c-sharp-101/. About your current issue, I think you need to make sure that your declaration of the dictionary is correct if the result is null. Or does it really exists in the first place? Cheers, Jin

Ashutosh Gupta · Answer

can you sahre your code or may be you need to create dictionaly as case insentive by provide culture.ordinalignore case.

TryGetValue returns Null even though key exists

Answers (4)