C# testing for null

Please let me know if there is a way. Thank you in advance. As well as David M's method, you can also use DataRow. IsNull :. Value worked! Here is why I needed it. It generates the insert script for given table name. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 12 years ago. HasValue Console. WriteLine var. ToString ; else Console.

So in this way, the Null values are handled in C. Now we will see one other important term associated with Null types, and that is Null-Collation in the next section of this post. It is known as the null-coalescing operator that is used to define the default value for nullable reference or value types. In case if the operand is not null then it returns left-hand operand otherwise the right operand is returned by this.

It is used to check the null values. In case if you want to assign a default value to any variable the time when it is null, then you can use Null Coalescing Operator??

WriteLine myname ; Console. IsNullOrEmpty Method of C Well, so far we were discussing the value types that can have either null or not-null values. Now, as we are discussing Null values of C , so one other concept that is associated with Null values is the method named IsNullOrEmpty. This method is used when you want to check whether the given string is Empty or have a null value or not?

Is this page helpful? Please rate your experience Yes No. Any additional feedback? Submit and view feedback for This product This page. View all page feedback. In this article. Name and emp? Age evaluated to valid values. In case of emp. City , emp? State , emp? Country and emp? For example, In below case, Age property is a value type and emp?. Age returns int? So while assigning it to a variable then you have to declare the variable as nullable type.

In below case we have declared int? For example, when we invoke emp?. If emp is NULL then no further call in the expression will occur.

If you club null conditional operator?. However it will throw a Null Reference Exception if the left operand of? For example: emp?. However emp. Thanks for your time feel free to provide your feedback and do check my other blogs on Null Coalescing Operator??