CS1061: “System.Web.UI.WebControls.GridViewDeletedEventArgs”不包含“RowIndex”的定义，并且找

Question

页面中设置了“ OnRowDeleting="List_RowDeleting" DataKeyNames="id"”后台代码为：
行 178:    protected void List_RowDeleting(object sender, GridViewDeletedEventArgs e)
行 179:    {
行 180:        string id = this.List.DataKeys[e.RowIndex].Value.ToString();
行 181:        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["SQLCONNECTIONSTRING"].ConnectionString);
行 182:        con.Open();
为什么还是有这个错误呢？求解答，急！！！

Answer 1

你事件参数写错了。。protected void List_RowDeleting(object sender, GridViewDeleteEventArgs e)

Answer 2

 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
           
        }

Answer 3

你是不是一开始添加了RowDeleted事件啊。。RowDeleted事件是GridViewDeletedEventArgs 
RowDeleting事件是GridViewDeleteEventArgs