测试成功的窗体应用[批量新增、删除、保存]

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Windows.Forms;
using System.Drawing;

namespace RZGY
{
    class LinkDB
    {
        private SqlConnection sqlCONN = new SqlConnection("server=.;database=rzgy;integrated security=sspi");
        private SqlDataAdapter sqlDA = null;
        private DataSet ds = new DataSet();
        private string sqlSelect = "";
        private SqlCommandBuilder sqlCMDBLD;
        /// <summary>
        /// 填充并返回数据集合
        /// </summary>
        /// <param name="sql"></param>
        /// <param name="tableName"></param>
        /// <returns></returns>
        public DataTable ExecuteSQLDataTable(string sql)
        {
            DataTable dt=new DataTable();
            sqlDA = new SqlDataAdapter(sql, sqlCONN);
            sqlDA.Fill(dt);
            return dt;
        }

        public DataSet ExecuteSQLDataSet(string sqlTmp, string tableTableName)
        {
            sqlSelect = sqlTmp;
            sqlDA = new SqlDataAdapter(sqlSelect, sqlCONN);
            ds.Clear();
            sqlDA.Fill(ds, tableTableName);
            return ds;
        }

        /// <summary>
        /// 批量更新
        /// </summary>
        /// <param name="changedDS"></param>
        /// <param name="tableName"></param>
        /// <returns></returns>
        public int BatchUpdate(DataSet changedDS, string tableName)
        {
            int nums = 0;
            sqlDA = new SqlDataAdapter(sqlSelect,sqlCONN);
            sqlCMDBLD = new SqlCommandBuilder(sqlDA);
            sqlDA.InsertCommand = sqlCMDBLD.GetInsertCommand();
            sqlDA.DeleteCommand = sqlCMDBLD.GetDeleteCommand();
            sqlDA.UpdateCommand = sqlCMDBLD.GetUpdateCommand();
            try
            {
                lock (this)  //处理并发情况(分布式情况)
                {
                    nums = sqlDA.Update(changedDS, tableName);
                }
            }
            catch(Exception Ex)
            {
                MessageBox.Show(Ex.Message);
            }
            return nums;
        }

        /// <summary>
        /// 自定义DataGridView
        /// </summary>
        /// <param name="dataGridView"></param>
        public void CustomizeDataGridView(DataGridView dataGridView)
        {
            dataGridView.AllowUserToAddRows = false;
            dataGridView.AutoGenerateColumns = false;
            dataGridView.AlternatingRowsDefaultCellStyle.BackColor = Color.Azure;
            dataGridView.RowTemplate.Resizable = DataGridViewTriState.False;
            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
            dataGridView.EditMode = DataGridViewEditMode.EditOnEnter;
            dataGridView.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;

            for (int i = 0; i < dataGridView.ColumnCount; i++)
            {
                dataGridView.Columns[i].ReadOnly = true;
                dataGridView.Columns[i].SortMode = DataGridViewColumnSortMode.NotSortable; //不自动排序
            }
        }

        /// <summary>
        /// 给DataGridView添加行号
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void AddRowIndex(object sender, DataGridViewRowPostPaintEventArgs e)
        {
            SolidBrush s = new SolidBrush(Color.Black);
            e.Graphics.DrawString(Convert.ToString(e.RowIndex + 1), e.InheritedRowStyle.Font, s, e.RowBounds.X + 10, e.RowBounds.Y + 1);
        }

        /// <summary>
        /// 获取日期（格式：YYYY-MM-DD）
        /// </summary>
        /// <param name="DTP"></param>
        /// <param name="date"></param>
        /// <returns></returns>
        public string GetDate(DateTimePicker DTP, string date, string format)
        {
            if (format == "YYYY-MM-DD")
            {
                if (DTP.Value.Month <= 9)
                {
                    if (DTP.Value.Day <= 9)
                        date = DTP.Value.Year.ToString() + "-0" + DTP.Value.Month.ToString() + "-0" + DTP.Value.Day.ToString();
                    else
                        date = DTP.Value.Year.ToString() + "-0" + DTP.Value.Month.ToString() + "-" + DTP.Value.Day.ToString();
                }
                else
                {
                    if (DTP.Value.Day <= 9)
                        date = DTP.Value.Year.ToString() + "-" + DTP.Value.Month.ToString() + "-0" + DTP.Value.Day.ToString();
                    else
                        date = DTP.Value.Year.ToString() + "-" + DTP.Value.Month.ToString() + "-" + DTP.Value.Day.ToString();
                }
            }
            if (format == "YYYYMMDD")
            {
                if (DTP.Value.Month <= 9)
                {
                    if (DTP.Value.Day <= 9)
                        date = DTP.Value.Year.ToString() + "0" + DTP.Value.Month.ToString() + "0" + DTP.Value.Day.ToString();
                    else
                        date = DTP.Value.Year.ToString() + "0" + DTP.Value.Month.ToString() + DTP.Value.Day.ToString();
                }
                else
                {
                    if (DTP.Value.Day <= 9)
                        date = DTP.Value.Year.ToString() + DTP.Value.Month.ToString() + "0" + DTP.Value.Day.ToString();
                    else
                        date = DTP.Value.Year.ToString() + DTP.Value.Month.ToString() + DTP.Value.Day.ToString();
                }
            }
            return date;
        }
    }
}

以上函数修改为：

 public string GetDate(DateTimePicker DTP, string date, string format)
        {
            if (format = "YYYY-MM-DD")
            {
                date = DTP.Value.ToString("yyyy-MM-dd");
            }
            if (format = "YYYYMMDD")
            {
                date = DTP.Value.ToString("yyyyMMdd");
            }
            return date;
        }

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace RZGY
{
    public partial class FrmW_TD_GROOVE : Form
    {
        public FrmW_TD_GROOVE()
        {
            InitializeComponent();
        }

        LinkDB link = new LinkDB();
        DataSet dsGroove = null;
        string sqlGroove = "select * from TD_GROOVE";
        BindingSource bs = null;
        private void FrmW_TD_GROOVE_Load(object sender, EventArgs e)
        {
            link.CustomizeDataGridView(dgvW_TD_GROOVE);
            dsGroove = new DataSet();
            dsGroove = link.ExecuteSQLDataSet(sqlGroove, "tbTD_GROOVE");
/*************************************************************************************/
            bs = new BindingSource(dsGroove, "tbTD_GROOVE");
            dgvW_TD_GROOVE.DataSource = bs;
/*************************************************************************************/

            FillcmbGrooveCode();
        }

        private void FillcmbGrooveCode()
        {
            cmbGrooveCode.Items.Clear();
            DataTable dt = link.ExecuteSQLDataTable("select GROOVE_CODE from TD_GROOVE");
            cmbGrooveCode.Items.Add("全部");
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                this.cmbGrooveCode.Items.Add(dt.Rows[i][0].ToString());
            }
        }
        private void btnQuery_Click(object sender, EventArgs e)
        {
            try
            {
                string sqlFilter = "select * from TD_GROOVE";
                string sqlFilterAdd = "";
                if (cmbGrooveCode.Text.ToString() == "全部")
                {
                    sqlFilterAdd = "";
                }
                if (cmbGrooveCode.Text.ToString() != "全部")
                {
                    sqlFilterAdd = " where GROOVE_CODE='" + cmbGrooveCode.SelectedItem.ToString() + "'";
                }
                sqlFilter += sqlFilterAdd;
                dsGroove = link.ExecuteSQLDataSet(sqlFilter, "tbTD_GROOVE");
                dgvW_TD_GROOVE.DataSource = bs;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message.ToString());
            }
        }

        private void btnAddNew_Click(object sender, EventArgs e)
        {
            try
            {
                if (dgvW_TD_GROOVE.DataSource != null)
                {
                    bs.AddNew();
                    dgvW_TD_GROOVE.CurrentCell = dgvW_TD_GROOVE[0, dgvW_TD_GROOVE.CurrentRow.Index]; //设定当前活动单元格
                    //设置当前新增行为可写
                    dgvW_TD_GROOVE[0, dgvW_TD_GROOVE.CurrentRow.Index].ReadOnly = false;
                    dgvW_TD_GROOVE[1, dgvW_TD_GROOVE.CurrentRow.Index].ReadOnly = false;
                    dgvW_TD_GROOVE[2, dgvW_TD_GROOVE.CurrentRow.Index].ReadOnly = false;
                }
            }
            catch(Exception Ex)
            {
                MessageBox.Show(Ex.Message);
            }
        }

        private void btnModify_Click(object sender, EventArgs e)
        {
            dgvW_TD_GROOVE[0, currentSelectedRowIndex].ReadOnly = false;
            dgvW_TD_GROOVE[1, currentSelectedRowIndex].ReadOnly = false;
            dgvW_TD_GROOVE[2, currentSelectedRowIndex].ReadOnly = false;
        }

        private void btnDelelte_Click(object sender, EventArgs e)
        {
            try
            {
                if (dsGroove.Tables["tbTD_GROOVE"].Rows.Count > 0)
                {
                    int currentRowIndex = dgvW_TD_GROOVE.CurrentRow.Index;
                    bs.RemoveAt(currentRowIndex);
                }
            }
            catch (Exception ERROR)
            {
                MessageBox.Show(ERROR.Message);
            }
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            try
            {
                bs.EndEdit();//注意
                if (dsGroove.GetChanges() != null)
                {
                    int changeNums = link.BatchUpdate(dsGroove.GetChanges(), "tbTD_GROOVE");
                    if (changeNums > 0)
                    {
                        dsGroove.AcceptChanges();//注意
                        FillcmbGrooveCode();
                        for (int i = 0; i < dgvW_TD_GROOVE.Columns.Count; i++)
                        {
                            dgvW_TD_GROOVE.Columns[i].ReadOnly = true;
                        }
                        MessageBox.Show("保存成功!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    }
                    else
                        dsGroove.RejectChanges();
                }
                else
                    return;
            }
            catch (Exception ERROR)
            {
                MessageBox.Show(ERROR.Message);
            }
        }

        private void btnPrint_Click(object sender, EventArgs e)
        {

        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        int currentSelectedRowIndex;
        private void dgvW_TD_GROOVE_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            currentSelectedRowIndex = dgvW_TD_GROOVE.CurrentRow.Index;
        }

        private void btnRefresh_Click(object sender, EventArgs e)
        {
            //bs.ResetBindings(false);//使绑定到 System.Windows.Forms.BindingSource 的控件重新读取列表中的所有项，并刷新这些项的显示值
            //如果数据架构已更改，则为 true；如果只有值发生了更改，则为 false
            bs = new BindingSource(dsGroove, "tbTD_GROOVE");
            dgvW_TD_GROOVE.DataSource = bs;
        }
    }
}

打印暂没实现...
注：以前写的几个窗体代码有问题，各位请原谅！最近修改！！