/// <summary>
/// 显示数据网格控件
/// </summary>
public void ShowDataGird()
{
this.dataGridView1.DataSource = null;
this.dataGridView1.Columns.Clear();
List <Goods> list = GoodsHelper.FindList(new Goods(), new List <string>());
dataGridView1.DataSource = list;
dataGridView1.Columns["name"].HeaderText = "商品名";
dataGridView1.Columns["type"].HeaderText = "商品类型";
dataGridView1.Columns["sum"].HeaderText = "库存数量";
dataGridView1.Columns["id"].Visible = false;
DataGridViewButtonColumn col_Btn_alter = new DataGridViewButtonColumn();
col_Btn_alter.Name = "colBtn_alter";
col_Btn_alter.HeaderText = "";
col_Btn_alter.DefaultCellStyle.NullValue = "修改";
dataGridView1.Columns.Add(col_Btn_alter);
DataGridViewButtonColumn col_Btn_Drop = new DataGridViewButtonColumn();
col_Btn_Drop.Name = "colBtn_drop";
col_Btn_Drop.HeaderText = "";
col_Btn_Drop.DefaultCellStyle.NullValue = "删除";
dataGridView1.Columns.Add(col_Btn_Drop);
}