It is necessary to obtain the names of the columns in a list or a new DataFrame by allowing the user to select them through mouse clicks from the st.dataframe. This selection will facilitate the creation of a new st.dataframe based on the columns chosen by the user.
You can enable column selection with st.dataframe. Use on_select="rerun" in st.dataframe. Set selection_mode to either "single_column" or "multi_column" depending on what you want. Examples of getting selections from dataframes are included in the docs: st.dataframe - Streamlit Docs
I appreciate your prompt response, boss. I attempted to use the sample link you provided; however, it only allows for the selection of series columns sequentially. What I require is the ability to select random columns, such as A, C, F, J, and K, rather than in a series like A, B, C, D. My users should be able to select the desired columns by clicking with the mouse, which would then generate a new DataFrame containing only the randomly selected columns. After selecting the columns, users will then choose the rows. I hope this clarifies my requirements.
You can select arbitrary subsets of columns. (e.g. Hold shift to select sequential, but hold Ctrl to select any individual column additively.)
From the output, you can know what’s been selected then construct a filtered dataframe to display.
If you want, you can have users select the columns and rows from one view (or you can have them selected from sequential views).
Thank you very very much for your valuable reply
thank you again and again