C#分页显示服务器上指定目录下的所有图片代码

分页显示服务器上指定目录下的所有图片代码
代码语言：javascript
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<%@ Page Language="C#" EnableViewState="false" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
<script runat="server">
String folder = "~/";// 网站根目录下的所有图像
  protected void Page_Load(object sender, EventArgs e)
  {
//总页数

int TotalPages = 0;

//每页显示的数量

int pageItem = 4;

//当前页号

int pageIndex = Convert.ToInt32(Request.QueryString["page"]);

if (pageIndex == 0) pageIndex = 1;
System.IO.DirectoryInfo d = new System.IO.DirectoryInfo(Server.MapPath(folder));

System.IO.FileInfo[] fs = d.GetFiles(".").Where(file => file.Name.ToLower().EndsWith(".jpg") || file.Name.ToLower().EndsWith(".gif") || file.Name.ToLower().EndsWith(".bmp") || file.Name.ToLower().EndsWith(".png")).ToArray();
if (fs.Length % pageItem == 0) TotalPages = fs.Length / pageItem;

else

{

TotalPages = (int)Math.Ceiling((decimal)fs.Length / (decimal)pageItem);

}

if (pageIndex > TotalPages) pageIndex = TotalPages;
System.IO.FileInfo[] fs2 = new System.IO.FileInfo[pageItem];

int leftCount = pageItem;

if (fs.Length - ((pageIndex - 1) * pageItem) < pageItem)

{

leftCount = fs.Length - (pageIndex - 1) * pageItem;

}

Array.Copy(fs, (pageIndex - 1) * pageItem, fs2, 0, leftCount);

DataList1.DataSource = fs2;

DataList1.DataBind();

PrePage.NavigateUrl = Request.FilePath + "?page=" + (pageIndex - 1);

NextPage.NavigateUrl = Request.FilePath + "?page=" + (pageIndex + 1);

Label1.Text = fs.Length + "张图片 共" + TotalPages + "页 第" + pageIndex + "页";
}

</script>

<html xmlns="http://www.w3.org/1999/xhtml"&gt;

<body>

<form runat="server">

<asp:DataList ID="DataList1" runat="server" RepeatColumns="2" Border="1">

<ItemTemplate>

<img src='<%#Page.ResolveUrl(folder + Eval("Name"))%>' width="200" height="200" />

</ItemTemplate>

<AlternatingItemTemplate>

<img src='<%#Page.ResolveUrl(folder + Eval("Name"))%>' width="200" height="200" />

</AlternatingItemTemplate>

</asp:DataList>

<asp:HyperLink ID="PrePage" runat="server">上一页</asp:HyperLink>

<asp:HyperLink ID="NextPage" runat="server">下一页</asp:HyperLink>

<asp:Label ID="Label1" runat="server" Text=""></asp:Label>

</form>

</body>

</html></pre>