The c page displays examples of all images in the specified directory on the server
- 2020-06-23 01:44:59
- OfStack
The c# page displays all images in the specified directory on the server
<%@ 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">
<script runat="server">
String folder = "~/";// All images under the site root
protected void Page_Load(object sender, EventArgs e)
{
// Total number of pages
int TotalPages = 0;
// Number of displays per page
int pageItem = 4;
// The current page number
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 + " image A total of " + TotalPages + " page The first " + pageIndex + " page ";
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<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"> on 1 page </asp:HyperLink>
<asp:HyperLink ID="NextPage" runat="server"> Under the 1 page </asp:HyperLink>
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>
</form>
</body>
</html>