What is custom attributes in C#?

Attributes are used to impose conditions or to increase the efficiency of a piece of code. There are built-in attributes present in C# but programmers may create their own attributes, such attributes are called Custom attributes. To create custom attributes we must construct classes that derive from the System.

What are custom attributes?

Custom attributes are properties that you create to use with assets. You create custom attributes when the standard properties of assets, such as name and description, are insufficient or do not meet your business needs.

What is custom attribute in HTML?

Custom Data Attributes allow you to add your own information to tags in HTML. Even though the name suggests otherwise, these are not specific to HTML5 and you can use the data-* attribute on all HTML elements.

What are custom attributes and how are they used?

Custom attributes are essentially traditional classes that derive directly or indirectly from System.Attribute. Just like traditional classes, custom attributes contain methods that store and retrieve data.

Which is true in attribute.isdefined method?

The type, or a base type, of the custom attribute to search for. If true, specifies to also search the ancestors of element for custom attributes. true if a custom attribute of type attributeType is applied to element; otherwise, false. element or attributeType is null. attributeType is not derived from Attribute.

How to get the custom attribute of asyncstatemachineattribute?

MethodInfo method = classType.GetMethod (methodName); Type attType = typeof(AsyncStateMachineAttribute); // Obtain the custom attribute for the method. // The value returned contains the StateMachineType property.

How to get the attribute of a method?

Obtains a MethodInfo object for the method name by using Type.GetMethod. Obtains a Type object for the attribute by using GetType Operator or typeof. Obtains an attribute object for the method and attribute type by using MethodInfo.GetCustomAttribute.