使用列表框,我有以下代码来提取所选项：

    private void inventoryList_SelectedIndexChanged(object sender, EventArgs e)
    {
        String s = inventoryList.SelectedItem.ToString();
        s = s.Substring(0, s.IndexOf(':'));
        bookDetailTable.Rows.Clear();
        ...
        more code
        ...
    }

我想为DataGridView做类似的事情,也就是说,当选择更改时,检索所选行中第一个单元格的内容.问题是,我不知道如何访问该数据元素.

任何帮助是极大的赞赏.

解决方法:

我认为这就是你要找的东西.但如果没有,希望它会给你一个开始.

private void dataGridView1_SelectionChanged(object sender, EventArgs e)
{
    DataGridView dgv = (DataGridView)sender;

    //User selected WHOLE ROW (by clicking in the margin)
    if (dgv.SelectedRows.Count> 0)
       MessageBox.Show(dgv.SelectedRows[0].Cells[0].Value.ToString());

    //User selected a cell (show the first cell in the row)
    if (dgv.SelectedCells.Count > 0)
        MessageBox.Show(dgv.Rows[dgv.SelectedCells[0].RowIndex].Cells[0].Value.ToString());

    //User selected a cell, show that cell
    if (dgv.SelectedCells.Count > 0)
        MessageBox.Show(dgv.SelectedCells[0].Value.ToString());
}