For example, the [String Length] attribute used on the First Name property specifies the maximum length for First Name to be 50 and Minimum Length to be 3.The Error Message property of the data annotation attribute indicates an error message that will be displayed in case there is any validation error.
In this example, you will validate all of the columns except Id, using various data annotation attributes. NET class (POCO) then you can directly decorate its properties with data annotation attributes.The problem with accepting the parameter is that you can't be certain a function call passes an actual file path.We are accepting anything that is a string, and we are going to start doing things with that string, trusting that the script user did not make any mistakes when typing in the path. For instance, if your script prompts for a folder path, and the user enters something unexpected, your script won't be able to perform your intended task.Id, First Name, Last Name, Email, Bio, Age, Blog Url and Phone.Once you create the User Profile table make sure to add an ADO.This will also allow us to return helpful error messages to the user in case the path did not pass validation. NET class Invoke-Task -Path C:\Users Invoke-Task : Cannot process argument transformation on parameter 'Path'. You can use built-in Power Shell features to validate user input, or you can write a validate script.
Below I will explain how you can validate parameters in Power Shell with or without the help of validate scripts.
The [Url] attribute checks whether a property value is a valid URL.
Finally, the [Regular Expression] attribute checks whether a property value matches a pattern as specified by a regular expression.
The User Profile Metadata class contains property definitions for First Name, Last Name, Email, Bio, Age, Blog Url and Phone.
Notice the attributes that are used to decorate these properties.
The [Display Name] attribute is used to specify a friendly name for the property under consideration.