如何通过单击 PySimpleGUI 中的行来触发事件答案

【问题标题】：How to trigger events by clicking on row in PySimpleGUI如何通过单击 PySimpleGUI 中的行来触发事件
【发布时间】：2021-12-21 10:44:57
【问题描述】：

库的新手，尽管使用了演示代码，但我还是很难通过直接单击表格行来提示事件。我可以轻松地制作一些允许用户选择一行的东西，然后使用如下按钮触发所需的事件，但我不确定如何删除按钮步骤并通过单击直接触发事件行？

   layout = [[sg.Table(values=df.values.tolist(),
                            headings=df.columns.tolist(),
                            max_col_width=25,
                            auto_size_columns=True,
                            justification='right',
                            # alternating_row_color='lightblue',
                            num_rows=min(len(df), 20))],
              
              
              [sg.Button('Select Row', key='_rowselected_')]]

【问题讨论】：

标签： python user-interface datatables pysimplegui

【解决方案1】：

要获取点击表格的事件，提供了两个事件

选项 enable_click_events 用于在选择行之前单击单元格的事件，因此 values[table] 仍保留旧数据以供选择。
选项enable_events 用于行选择事件，值[table] 将保留新选择的数据。

示例代码

import PySimpleGUI as sg

sg.theme("DarkBlue3")

newlist = [
    [f"Cell ({row:0>2d}, {col:0>2d})" for col in range(8)]
        for row in range(10)
]

COL_HEADINGS = ["Date", "Ref", "ID", "Owner", "Customer", "Price", "Size", "Path"]

layout = [
    [sg.Table(
        values=newlist,
        headings=COL_HEADINGS,
        max_col_width=25,
        num_rows=10,
        alternating_row_color='green',
        key='-TABLE-',
        enable_events=True,
        # enable_click_events=True,
        justification='center',
    )],
    [sg.Text("", size=(50, 1), expand_x=True, key='-Position-')]
]

window = sg.Window('Table', layout, finalize=True)
table = window['-TABLE-']
position = window['-Position-']

while True:
    event, values = window.read()
    if event == sg.WIN_CLOSED:
        break
    elif isinstance(event, tuple) and event[0:2] == ('-TABLE-', '+CICKED+'):
        # click position row, column, count from 0, -1 for headings
        row, col = event[2]
        selection = values['-TABLE-']
        # previous selected row number, not now.
        previous_select_row = selection[0] if selection else 'None'
        position.update(f'Clicked position is ({row}, {col}), and previous selected row is {previous_select_row}')

    elif event == '-TABLE-':
        # selected row number, cound from 0
        row = values[event]
        if row:
            position.update(f'Selected row is {row}')

    print(event, values)

window.close()

【讨论】：