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Does anyone know how to check for an unassigned string in uipath? Uipath seems to crash when an if statement looks for a null string. Not sure how to handle that. String.empty doesn't seem to work, and if the string is unassigned uipath stops logging and nothing happens.
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To check if a string is null or empty, use IsNullorEmpty. IsNullorEmpty is a function to determine if a given string is null or empty. If the target string is null or “”, then True is returned.
If MyVar is a variable of type String, use an If activity with condition MyVar Is Nothing . If you also want to check if it's empty, use condition String. IsNullOrEmpty(MyVar) .
Introduction. In Java, there is a distinct difference between null , empty, and blank Strings. An empty string is a String object with an assigned value, but its length is equal to zero. A null string has no value at all.
Add If condition activity to check the length of the array if length = 0 then it means it was empty otherwise empty. This way it will return True or False even if the array is Null.
There are many different approaches and ideas, but – according to me – what you can do is:
Always make sure before to define any variable by default, initialize it with empty strings(""). So it will be easy to check it with equal operator as well.
The Other approaches you can take in Uipath is based on .Net So u can use it's Is Nothing.
You can also use .Net String.IsNullOrEmpty Method (String) Method.
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Best way to check string has value or not -->
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