c# - 如何使用 gridview 在 .aspx 页面中显示信息

Question

我是 C# 的新手，不知道如何使用 C# gridview 显示并在我的 .aspx 页面中显示。你如何编码？下面是我做的代码，但我需要一些建议是否正确。

这是我在 .aspx 页面中的代码

<asp:GridView ID="WorkshopEnrolled" runat="server"
AutoGenerateColumns="False" DataKeyNames="ProductID"
DataSourceID="WorkshopEnrolledDataSource" EnableViewState="False">
<Columns>
    <asp:BoundField DataField="WorkshopCode" HeaderText="Workshop Code"
      SortExpression="WorkshopCode" />
    <asp:BoundField DataField="WorkshopName" HeaderText="Workshop Name"
        HtmlEncode="False" SortExpression="WorkshopName">
        <ItemStyle HorizontalAlign="Right" />
    </asp:BoundField>
    <asp:BoundField DataField="WorkshopDate"
     HeaderText="Workshop Date" SortExpression="WorkshopDate">
        <ItemStyle HorizontalAlign="Right" />
    </asp:BoundField>
    <asp:BoundField DataField="WorkshopLocation"
       HeaderText="Workshop Location" SortExpression="WorkshopLocation">
        <ItemStyle HorizontalAlign="Right" />
    </asp:BoundField>
</Columns>

这是我的 .aspx.cs 文件

public partial class Workshop : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
      HttpCookie httpCookie = Request.Cookies["TeamAwesomeCookie"];

      if (httpCookie != null)
      {
          // Write code to update photo filename in Users' table
          WorkshopController wc = new WorkshopController();
          ArrayList workshopEnrolled = wc.retrieveWorkshopByStudent(int.Parse(httpCookie.Values["UserID"]));
          ArrayList availableWorkshop = wc.retrieveAvailableWorkshops();

      }

    }


    protected void WorkshopEnrolled_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        //string workshopCode = null;
       // string workshopName = null;
       // string workshopDate = null;
       // string workshopLocation = null;

        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            // Reference the ProductsRow via the e.Row.DataItem property
            Workshop workshopEnrolled = (Workshop)e.Row.DataItem;


        }
    }


}

Answer 1

乍一看，您的代码看起来不错，只是您忘记了对网格进行数据绑定(bind)，而且您的意图似乎是从后面的代码绑定(bind)数据。话虽如此，删除

 DataSourceID="WorkshopEnrolledDataSource" 

从标记中，将这些行添加到后面的代码中，在 2 个 ArrayList 声明下方:

 WorkshopEnrolled.DataSource=          workshopEnrolled ;
 WorkshopEnrolled.DataBind();