尝试新鲜事物你需要写在您的搜索按钮过滤方法。过滤的方法将过滤框数据为基础的数据。它使用的DataView。一旦你已经过滤的数据，重新绑定网格的DataView看到的结果。尝试

private void button1_Click(object sender, EventArgs e)//button click event

{

   DataTable dt= new DataTable;//creation of datatable which will be reflected in                         

                               //the datagrid view

   SqlDataAdapter adpt = new SqlDataAdapter("Select <field> from <table> where <field> like '" + textbox.Text + "%'",connectionobject); //query for database

   adpt.Fill(dt);//datatable to catch the fields from the database

   datagridview.DataSource = dt;

}</field></table></field>