我使用以下代码在datalist中显示图像。
if (!IsPostBack)
{
string str="~/"+txt1.Text+"/";
DirectoryInfo dir = new DirectoryInfo(MapPath("str"));
FileInfo[] files = dir.GetFiles();
ArrayList list = new ArrayList();
foreach (FileInfo oItem in file
我一直试图找到一种方法,通过更新面板将进程的增量反馈传递给UI。我试图实现的一个基本例子如下:
protected void DoSomething(object sender, EventArgs e) {
for(int i=0; i < 10; i++){
//Pretend to do something intensive
Thread.Sleep(1000);
//Output the progress of the process to a label
Label.Text = i.ToString();
我想删除一个临时文件后,从动作返回它。如何使用ASP.NET核心实现这一目标: public IActionResult Download(long id)
{
var file = "C:/temp/tempfile.zip";
var fileName = "file.zip;
return this.PhysicalFile(file, "application/zip", fileName);
// I Would like to have File.Delete(file) here !!
} 文件太大,无法使