student/changeImg.aspx.cs
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using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Data;
using System.Data.SqlClient;
public partial class student_changeImg : System.Web.UI.Page
{
string num = "";
string url = "";
protected void Page_Load(object sender, EventArgs e)
{
if (base.Request.QueryString["num"] == null)
{
base.Response.Redirect("SuLogin_in.aspx");
}
else
{
num = base.Request.QueryString["num"];
}
}
private void upload()
{
if (IsPostBack)
{
Boolean fileOK = false;
String path = Server.MapPath("~/student/stuimage/");
if (FileUpload1.HasFile)
{
String fileExtension =
System.IO.Path.GetExtension(FileUpload1.FileName).ToLower();
String[] allowedExtensions = { ".gif", ".png", ".jpeg", ".jpg" };
for (int i = 0; i < allowedExtensions.Length; i++)
{
if (fileExtension == allowedExtensions[i])
{
fileOK = true;
}
}
}
if (fileOK)
{
try
{
FileUpload1.PostedFile.SaveAs(path
+ FileUpload1.FileName);
url = "stuimage/" + FileUpload1.FileName.ToString();
OPDB.operate.Alert("File uploaded!");
}
catch (Exception ex)
{
OPDB.operate.Alert("File could not be uploaded.");
}
}
else
{
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