从 DataGridView winforms 中的数据库中删除数据行? [英] Delete data row from DB in DataGridView winforms?

问题描述

我想从数据库中删除该行数据，目前我可以通过点击删除按钮删除该行数据，但是数据库表没有更新，我该怎么做?

i want to delete the row of data from the database, currently i can delete the row of data by clicking on the delete button, but the database Table is not updated, how do i do so?

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace project
{
    public partial class frmTestPrint : Form
    {
        public frmTestPrint()
        {
            InitializeComponent();
        }

        private void frmTestPrint_Load(object sender, EventArgs e)
        {
            // TODO: This line of code loads data into the 'usersDataSet1.Booking' table. You can move, or remove it, as needed.
            this.bookingTableAdapter.Fill(this.usersDataSet1.Booking);

        }


        private void btnDelete_Click(object sender, EventArgs e)
        {
            dataGridView1.Rows.RemoveAt(dataGridView1.CurrentRow.Index);
        }
    }
}

推荐答案

这只是一次删除一个.我仍在处理多个删除操作.

This is only to delete one at a time. I am still working on multiple deletes.

        if (MessageBox.Show("Sure you wanna delete?", "Warning", MessageBoxButtons.YesNo) == System.Windows.Forms.DialogResult.Yes)
        {
            //get the index from the dataGridView
            int rowIndex = table1DataGridView.CurrentCell.RowIndex;
            //Remove from both the actual database & datagridview
            table1BindingSource.RemoveAt(rowIndex);
            //update table 1
            this.table1TableAdapter.Update(this.maquinasDataSet.Table1);
            //load table 1
            this.table1TableAdapter.Fill(this.maquinasDataSet.Table1);
        }

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