转发器不从数据库访问

Question

中继器不从数据库访问，如何设置当前显示图像，例如，如果我有 20 张图像，对于第一页，我只想显示 10 张图像。现在，我将从文件夹中获取整个图像。

    <asp:Repeater ID="Repeater1" runat="server" >
        <ItemTemplate>
       <asp:HyperLink ID="HyperLink1"  ImageUrl='<%#"Images/" + Eval("Name") %>' CssClass="img img-responsive thumbnail center-block " runat="server" width="234px" height="250px"  ToolTip="check to buy" />
        </ItemTemplate>
    </asp:Repeater>
  </div>

上一页下一页

 private void ListImages(int SelectedPage)
    {
        DirectoryInfo dir = new DirectoryInfo(Server.MapPath("~/Images"));
        FileInfo[] file = dir.GetFiles();
        ArrayList list = new ArrayList();
        foreach (FileInfo info in file)
        {
            if (info.Extension == ".jpg" || info.Extension == ".jpeg" || info.Extension == ".gif" || info.Extension == ".png")
            {
                list.Add(info);
            }
        }

        Repeater1.DataSource = list;
        Repeater1.DataBind();
           // Step 2: Create PagedDataSource instance and set its properties
           PagedDataSource pds = new PagedDataSource();
           pds.DataSource = list;
           pds.AllowPaging = true;
           pds.PageSize = 2;
           if (SelectedPage > (pds.PageCount - 1))
           {
             SelectedPage = pds.PageCount - 1;
           }
            if (SelectedPage < 0)
             SelectedPage = 0;
           pds.CurrentPageIndex = SelectedPage;
           // Step 3: Bind PagedDataSource to Repeater and set LinkButtons' behavior
           Repeater1.DataSource = pds;
           if (pds.IsLastPage)
               lbNext.Enabled = false;
           else
               lbNext.Enabled = true;
           if (pds.IsFirstPage)
               lbPrevious.Enabled = false;
           else
               lbPrevious.Enabled = true;
    }

Answer 1

您需要将PageSize设置为 10 并DataBind()中继器：

// Step 2: Create PagedDataSource instance and set its properties
            PagedDataSource pds = new PagedDataSource();
            pds.DataSource = list;
            pds.AllowPaging = true;
            pds.PageSize = 10; //Display 10 images in each page
            if (SelectedPage > (pds.PageCount - 1))
            {
                SelectedPage = pds.PageCount - 1;
            }
            if (SelectedPage < 0)
                SelectedPage = 0;
            pds.CurrentPageIndex = SelectedPage;
            // Step 3: Bind PagedDataSource to Repeater and set LinkButtons' behavior
            Repeater1.DataSource = pds;
            Repeater1.DataBind(); //Like this