ASP.NET 服務(wù)器路徑和一般資源調(diào)用
2024-07-10 12:38:36
供稿：網(wǎng)友
頁(yè)面代碼:
代碼如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="RadioButtonListDemo.aspx.cs"
Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>無標(biāo)題頁(yè)</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:RadioButtonList ID="RadioButtonList_Demo" runat="server" OnSelectedIndexChanged="RadioButtonList_Demo_SelectedIndexChanged"
AutoPostBack="true">
</asp:RadioButtonList>
<br />
<asp:Image ID="Image_Show" runat="server" />
</div>
</form>
</body>
</html>
后臺(tái)代碼:
代碼如下:
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using CDataBase;
using System.IO;
public partial class _Default : System.Web.UI.Page
{
/// <summary>
/// 頁(yè)面加載事件
/// </summary>
/// <param name="sender">控件發(fā)送對(duì)象</param>
/// <param name="e">事件對(duì)象</param>
protected void Page_Load(object sender, EventArgs e)
{
//取得ConnectionString的值
//Response.Write("<script>alert('" + SqlHelper.conString + "')</script>");
if (!IsPostBack)
{
//先要有路徑 系統(tǒng)根目錄下 福娃文件夾 下的文件路徑
string sPath = Server.MapPath(Request.ApplicationPath + "/福娃/");
//取得這個(gè)路徑下面所有的文件名 包含其路徑
string[] sFiles = Directory.GetFiles(sPath);
//循環(huán)所有文件的路徑
foreach (string sFile in sFiles)
{
//取文件名
string sName = Path.GetFileNameWithoutExtension(sFile);
//取文件名, 包含擴(kuò)展名
string sFileName = Path.GetFileName(sFile);
//建立RadioButtonList的子項(xiàng),采用 Text/Value 的重載方式
ListItem rItem = new ListItem(sName, Request.ApplicationPath + "/福娃/" + sFileName);
//將子項(xiàng)添加到RadioButtonList里
RadioButtonList_Demo.Items.Add(rItem);
}
//設(shè)置RBL中單選按鈕的顯示排列方式
RadioButtonList_Demo.RepeatDirection = RepeatDirection.Horizontal;
RadioButtonList_Demo.RepeatLayout = RepeatLayout.Table;
}
}
/// <summary>
/// 選擇項(xiàng)改變事件
/// </summary>
/// <param name="sender">控件發(fā)送對(duì)象</param>
/// <param name="e">事件對(duì)象</param>
protected void RadioButtonList_Demo_SelectedIndexChanged(object sender, EventArgs e)
{
Image_Show.ImageUrl = RadioButtonList_Demo.SelectedValue.ToString();
}
}
重點(diǎn)
取得網(wǎng)站目錄下某一個(gè)目錄的路徑
