数据添加到datagridview （可以添加多行）

  DataSet ds;//放在外面声明 private void Form1_Load(object sender, EventArgs e) { ds = new DataSet(); //创建表 DataTable dt = new DataTable("Account"); //创建表的列 DataColumn dcTime = new DataColumn("AccountTime", typeof(string)); DataColumn dcItem = new DataColumn("AccountItem", typeof(string)); dcItem.MaxLength = 50; DataColumn dcAmount = new DataColumn("AccountPrice", typeof(string)); DataColumn dcRemarks = new DataColumn("AccountRemarks", typeof(string)); dcRemarks.MaxLength = 100; dt.Columns.Add(dcTime); dt.Columns.Add(dcItem); dt.Columns.Add(dcAmount); dt.Columns.Add(dcRemarks); ds.Tables.Add(dt); } private void btnInsert_Click(object sender, EventArgs e) //按钮点击的时候创建行，此时不要再重复创建DataTable了 { DataTable dt = ds.Tables["Account"]; DataRow dr = dt.NewRow(); dr["AccountTime"] = this.textBox1.Text; dr["AccountItem"] = this.textBox2.Text; dr["AccountPrice"] = this.textBox3.Text; dr["AccountRemarks"] = this.textBox4.Text; dt.Rows.Add(dr); this.dataGridView1.DataSource = dt.DefaultView; }