Good day all, I am relatively new to KNIME and therefore ask you for help in this. I do want to change the path of every writer/reader node (in my case all excel) based on the user who is executing the workflow. The path is mostly similar only the first part needs to be changed. (e.g. C:\Users\Thomas\OneDrive\General.…) only the bold part needs to be changed. I found a way in another thread using variable expressions and joining every single path. However this would result in me having to define every single path upfront. In ideal case I would like define the path still trough browsing via the reader/writer node and having a component where I define the first part of the path as path variable. Does anyone know if there is such a solution? Thank you in advance Thomas

Hi Thomas, Welcome to the KNIME Forum! Generally, for such dynamic paths the Create File/Folder Variables node is really helpful, but as you mentioned, you can also use a variable expression. But if you let the user browse and then you want to adapt the path, how would the workflow find out which part of the path is dynamic? You could let the user select a path at the beginning of the workflow and then dynamically append to that. Is that what you need? In that case you can use the Create File/Folder Variables and control the base folder using a flow variable which gets its value from the folder selected by the user. Does that make sense? Kind regards, Alexander

Creating a variable path for all reader/writer nodes based on the user

KNIME Analytics Platform

mlauber71 April 25, 2023, 9:23pm 3

@Krenbauer you can create path variables like this

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