我在 gridview 中通过 objectdatasource 选择了此方法，但 gridview 显示为空

Question

我在 gridview 中通过 objectdatasource 选择了这个方法，但是 gridview 显示为空 ![在此处输入图片说明][1]

[1]:gridview 照片.jpg

public List<Item> Item_Getall()
{
    List<Item> data = new List<Item>();
    SqlCommand cmd = new SqlCommand("c_get_all_item",oo.conn);
    cmd.CommandType = CommandType.StoredProcedure;
    oo.conn.Open();
    SqlDataReader rdr = cmd.ExecuteReader();
    while (rdr.Read())
    {
        data.Add(new Item());
        {
            Name_id = (rdr["item_name_id_pk"].ToString());
            Name_arabic = (rdr["item_name_arabic"].ToString());
            Component_english = (rdr["item_componant"].ToString());
            Component_arabic = (rdr["item_componant_arabic"].ToString());
            Price = float.Parse(rdr["item_price"].ToString());
            Image = (rdr["item_image"].ToString());
            Category = (rdr["item_category_name_id_fk"].ToString());
        }
    }
    oo.conn.Close();
    return data;
}

Answer 1

更新 - 尝试让我的回答更有帮助

如果您想简单地将数据绑定到 gridview，在后端很容易做到。假设您在 Page_Load 方法中执行此操作。

protected void Page_Load(object sender, eventArgs e){

    var data = Item_Getall(); //Creates a list of items by calling your method.

    gridView.DataSource = data; //assuming the ID of your gridview is "gridView". It might be something different.

    gridView.DataBind(); //binds the data to your grid. If you have it set to auto populate, it should essentially list out every public property for each object in the list.

}