DataGridView added a button type column, how to write the button event

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.ComponentModel;4 usingSystem.Data;5 usingSystem.Drawing;6 usingSystem.Linq;7 usingSystem.Text;8 usingSystem.Windows.Forms;9 usingSystem.Data.Sql;Ten usingSystem.Data.SqlClient; One  A namespaceDgv_buttonevent_win - { -      Public Partial classForm1:form the     { -DataSet ds =NewDataSet (); -DataTable Dtinfo =NewDataTable (); -         stringstrconn ="server=.; Trusted_connection=sspi;database=dbtruck; Enlist=false;";  +  -          PublicForm1 () +         { A InitializeComponent (); at         } -  -         Private voidForm1_Load (Objectsender, EventArgs e) -         { -SqlConnection conn =NewSqlConnection (strconn); - Conn. Open (); in             stringstrSQL ="SELECT * from Carfee"; -SqlDataAdapter SDA =NewSqlDataAdapter (strSQL, conn); toSda. Fill (DS,"DS"); + Conn. Close (); -Datagridview1.datasource=ds. tables[0]; the         } *  $         //DataGridView1 EventsPanax Notoginseng         Private voidDatagridview1_cellcontentclick (Objectsender, DataGridViewCellEventArgs e) -         { the             if(E.rowindex >=0) +             { ADataGridViewColumn column =Datagridview1.columns[e.columnindex]; the                 if(column isdatagridviewbuttoncolumn) +                 { -                     //Here you can write any action you need about the button event ~ $MessageBox.Show ("button is clicked"); $                 } -          　　　　　 //DGV The value of the drop-down box -MessageBox.Show (Datagridview1.rows[e.rowindex]. cells[e.columnindex-1]. Value.tostring ()); the             } -         }Wuyi     } the } -   Wu  

DataGridView added a button type column, how to write the button event