asp.net中gridview的查询、分页、编辑更新、删除的(4)

public partial class _Default : System.Web.UI.Page
{
    /// <summary>
    /// 1,展示产品
    /// </summary>
    private void Bind()
    {
        gvwProduct.DataSource = ProductOper.GetAll();
        gvwProduct.DataBind();
    }
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Bind();
        }
    }
    protected void gvwProduct_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        //删除一行数据
        Label productIdLabel = (Label)gvwProduct.Rows[e.RowIndex].FindControl("Label1");
        int productId = Convert.ToInt32(productIdLabel.Text);

//调用删除方法
        ProductOper.Delete(productId);