Скачать или смотреть How to Use Input from Selected Button in Tkinter Python

Learn how to efficiently manage user inputs in Tkinter with multiple buttons to choose files or folders and execute SQL queries.
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This video is based on the question https://stackoverflow.com/q/71349268/ asked by the user 'Devaraj Mani Maran' ( https://stackoverflow.com/u/15118626/ ) and on the answer https://stackoverflow.com/a/71354079/ provided by the user 'acw1668' ( https://stackoverflow.com/u/5317403/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Addressing Input Selection in Tkinter Using Command Buttons

When building a desktop application with Python's Tkinter library, you may face scenarios where you need to interact with multiple commands based on user selections. A common use case is selecting either a single file or a folder and executing operations based on that selection. In this guide, we will explore how to implement this functionality effectively.

The Challenge

Imagine you want to create a Tkinter application that allows users to:

Select a single SQL file from their system.

Choose a directory containing multiple SQL files.

Execute SQL commands from the chosen file or all files within the selected directory using a single "Execute" button.

The challenge lies in identifying which input (file or folder) was chosen before executing the appropriate action.

The Solution

To meet this challenge, we can leverage a single global variable to keep track of the user's selection. Depending on whether the selection is a folder or a file, we can execute the corresponding SQL actions. Here's how to structure your code.

Step 1: Import Necessary Libraries

Start by importing the required libraries:

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Step 2: Initialize the Main Window

Create a main window and a global variable to hold the selected path:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Define the Selection Functions

You need two functions to handle folder and file selections respectively:

Select Folder Function

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Select Individual File Function

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Step 4: Determine the Input Type for Execution

Now, create a function to execute the SQL commands based on the selected input:

[[See Video to Reveal this Text or Code Snippet]]

Step 5: Create Buttons to Trigger Selection and Execution

Add buttons to your Tkinter window for user interactions:

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Conclusion

By implementing the above code, your Tkinter application will be able to accept user input for both files and directories. Based on the user selection, the application will execute the appropriate commands, enhancing its usability and functionality.

This approach is straightforward and makes use of Python's built-in functionalities to ensure that your application runs smoothly. Happy coding!