Do you use String or Queue Items in your automation process and want to know if a specific transaction item is empty or not?
The following issues will arise if the check is not received or done:
In this article, we’ll look at how to avoid these two errors, as well as how to determine whether a specific transaction item or String is empty or not.
In general, we use the syntax below to determine whether a string is empty or not.
In UiPath, IsNullOrEmpty() is a string method. It is used to check whether the specified string is null or an Empty string. A string will be null if it has not been assigned a value. A string will be empty if it is assigned “” or String. Empty (A constant for empty strings).
IsNullOrWhiteSpace() is a string method in UiPath. It determines whether the specified string is null or only contains white-space characters. A string is null if it has not been assigned a value or has been explicitly assigned the value null.
Explanation: This method will take a parameter which is of type System.String and this method will return a boolean value. If the method’s parameter list is null or String.Empty, or only contains white-space characters then return True otherwise return False.
Unlike IsNullorEmpty, IsNullOrWhiteSpace returns the character for white space as True.
To summarize, use IsNullorEmpty and IsNullOrWhiteSpace to determine whether a string is null, empty, or contains blank space. The second issue that usually arises in these scenarios is that the given key is not in the dictionary: This is because the column name specified in the syntax is incorrect. Simply pass the correct column name to fix this. This is how you determine whether a Queue Item is empty or not, as well as the challenges that come with it.