DataGridView进行添加、修改、删除数据操作-C#

private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)

{

if (dataGridView1.Columns["UpdateData"] != null)

{

if (e.ColumnIndex == dataGridView1.Columns["UpdateData"].Index)

{

dataGridView1.Rows[e.RowIndex].DefaultCellStyle.BackColor = Color.White;

string attend_id = dataGridView1[dataGridView1.Columns["编号"].Index, e.RowIndex].Value.ToString();

string time1 = dataGridView1[dataGridView1.Columns["起始时间"].Index, e.RowIndex].Value.ToString();

string time2 = dataGridView1[dataGridView1.Columns["结束时间"].Index, e.RowIndex].Value.ToString();

string num = dataGridView1[dataGridView1.Columns["节次"].Index, e.RowIndex].Value.ToString();

if (time1 != "" && num != "" && time2!="")

UpdateData1(attend_id, time1, time2, num);

}

else if (e.ColumnIndex == dataGridView1.Columns["del"].Index)

{

if (Class1.alert2("您确定要删除第（" + dataGridView1[dataGridView1.Columns["节次"].Index, e.RowIndex].Value.ToString() + "节次）吗？"))

{

string attend_id = dataGridView1[dataGridView1.Columns["编号"].Index, e.RowIndex].Value.ToString();

string sql = string.Format("DELETE FROM attend WHERE attend_id={0}", attend_id);

DataBase.conn(sql);

Bd1();

}

}

}

}

public static void BindDataGridView(System.Windows.Forms.DataGridView dg, DataTable dtGrid)

{

dg.Columns.Clear();

dtGrid.Columns[0].ReadOnly = true;

dg.DataSource = dtGrid;

//加入更改按钮

System.Windows.Forms.DataGridViewButtonColumn column_addbutton = new System.Windows.Forms.DataGridViewButtonColumn();

column_addbutton.HeaderText = "更改";

column_addbutton.Name = "UpdateData";

column_addbutton.Text = "更改";

column_addbutton.UseColumnTextForButtonValue = true;

column_addbutton.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.AllCells;

column_addbutton.CellTemplate.Style.BackColor = System.Drawing.Color.Honeydew;

dg.Columns.Add(column_addbutton);

//加入删除按钮

System.Windows.Forms.DataGridViewButtonColumn column_delbutton = new System.Windows.Forms.DataGridViewButtonColumn();

column_delbutton.HeaderText = "删除";

column_delbutton.Name = "del";

column_delbutton.Text = "删除";

column_delbutton.UseColumnTextForButtonValue = true;

column_delbutton.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.AllCells;

column_delbutton.CellTemplate.Style.BackColor = System.Drawing.Color.Honeydew;

dg.Columns.Add(column_delbutton);

}

private void button1_Click(object sender, EventArgs e)

{

//DataTable table = (DataTable)dataGrid1.DataSource;

//table.Rows[dataGrid1.CurrentRowIndex].Delete();

//dataGrid1.DataSource = dataSet1.Tables[0].DefaultView;

//dataSet1.Tables[0].DefaultView[dataGrid1.CurrentRowIndex].Delete();

//oleDbDataAdapter1.Fill(dataSet1, "tushu");

int current = dataGrid1.CurrentCell.RowNumber;

string tushuma = dataGrid1[current, 0].ToString();

string de = "delete* from tushu where 图书码='"+tushuma+"'";

OleDbCommand mycommand = new OleDbCommand(de,oleDbConnection1);

mycommand.CommandText = de;

//OleDbParameter parm = mycommand.Parameters.Add("@tushuma",OleDbType.VarChar,13,"tushuma");

oleDbConnection1.Open();

mycommand.ExecuteNonQuery();

oleDbConnection1.Close();

}

private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)

{

if (dataGridView1.Columns["UpdateData"] != null)

{

if (e.ColumnIndex == dataGridView1.Columns["UpdateData"].Index)

{

dataGridView1.Rows[e.RowIndex].DefaultCellStyle.BackColor = Color.White;

string attend_id = dataGridView1[dataGridView1.Columns["编号"].Index, e.RowIndex].Value.ToString();

string time1 = dataGridView1[dataGridView1.Columns["起始时间"].Index, e.RowIndex].Value.ToString();

string time2 = dataGridView1[dataGridView1.Columns["结束时间"].Index, e.RowIndex].Value.ToString();

string num = dataGridView1[dataGridView1.Columns["节次"].Index, e.RowIndex].Value.ToString();

if (time1 != "" && num != "" && time2!="")

UpdateData1(attend_id, time1, time2, num);

}

else if (e.ColumnIndex == dataGridView1.Columns["del"].Index)

{

if (Class1.alert2("您确定要删除第（" + dataGridView1[dataGridView1.Columns["节次"].Index, e.RowIndex].Value.ToString() + "节次）吗？"))

{

string attend_id = dataGridView1[dataGridView1.Columns["编号"].Index, e.RowIndex].Value.ToString();

string sql = string.Format("DELETE FROM attend WHERE attend_id={0}", attend_id);

DataBase.conn(sql);

Bd1();

}

}

}

}

C#对DataGridView中的数据进行添加、修改、删除操作

private Boolean dbUpdate()

{

string strSql = "select ProductsSpecID,ProductsSpec,ProductsSpecUnit,ProductsID from tbl_product_detail_master";

System.Data.DataTable dtUpdate = new System.Data.DataTable();

dtUpdate = this.dbconn(strSql);

dtUpdate.Rows.Clear();

System.Data.DataTable dtShow = new System.Data.DataTable();

//dtShow = (DataTable)this.bindSource.DataSource;

dtShow = (System.Data.DataTable)this.dgselect.DataSource;

int p1 = dtShow.Rows.Count;

// try

// {

for (int i = 0; i < dtShow.Rows.Count; i++)

{

DataRowState rowState=new DataRowState();

rowState=dtShow.Rows[i].RowState;

if (rowState==DataRowState.Added || rowState==DataRowState.Detached || rowState==DataRowState.Modified)

{

if (this.dgselect["Del", i].Value.ToString() == "1")

{

dtShow.Rows[i].Delete();

}

}

}

for (int i = 0; i < dtShow.Rows.Count; i++)

{

dtUpdate.ImportRow(dtShow.Rows[i]);

}

int num = dtUpdate.Rows.Count;

try

{

this.conn.Open();

trans = this.conn.BeginTransaction();

MySqlCommandBuilder CommandBuiler;

CommandBuiler = new MySqlCommandBuilder(this.adapter);

this.adapter.Update(dtUpdate);

trans.Commit();

this.conn.Close();

}

catch ( Exception ex)

{

MessageBox.Show(ex.Message.ToString());

trans.Rollback();

return false;

}

dtUpdate.AcceptChanges();

return true;

}