Csharp check null string

Oliver Slay Oliver Slay 7 7 silver badges 9 9 bronze badges. This is one of those answers that probably isn't the exact answer the author was looking for, but it definitely complements my coding skills in c. I always enjoy reading the other answers to find more than what I was looking for. WriteLine "yaouh" ; else Console.

WriteLine "Not yahouu" ; Result: "Not yahou". This is also possible for. NET Framework. If you are using C 7. Misha Zaslavsky Misha Zaslavsky 6, 10 10 gold badges 57 57 silver badges bronze badges. You can check with null or Number. First, add a reference to Microsoft. VisualBasic in your application. IsNumeric "abc" ; In the above, b and c should both be false. Sign up or log in Sign up using Google. Sign up using Facebook. It would not be wrong to say that Null values are equally important and cannot be overlooked in any programming language, and this is so in C as well.

Here the Null values can be treated in many ways, and they are just a few cases of them. In this post, we discussed in detail about these keywords of C.

However, Null Coalescing has certain advantages and disadvantages as well as if it is incorporated inside the code then it can decrease the number of lines of the code. Though it cannot improve the performance of speed of the program but can optimize the code. As a result, the code becomes easier to understand. View All. Manchun Kumar Updated date Aug 13, Let us start our discussion with an example where we will assign a NULL value to a value type variable,.

This problem can be solved in the following two ways,. These are the ways to convert a non-nullable value type to nullable value type in C. A nullable type has two members,. HasValue is a Boolean type value that can again have two types of values one in True and other is False. In the above code, we assigned the null value to the string variable s and check whether it is empty or null with the string.

In the above section, we check for the null value and "" value combined. As in the previous example, we can also separately check whether a string is empty or not with the string. Empty field in C. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services.

Privacy policy. Thank you. Microsoft makes no warranties, express or implied, with respect to the information provided here. Indicates whether the specified string is null or an empty string "".