Question

每当我在UploadComplete（）中获得一个文件名时，它会在加载下一个文件时丢失，因为每个文件加载都会导致自动回发。我试图阻止它，但它不起作用。我还尝试使用ViewState来保存仍无法正常工作的文件名。如何保留上传文件名列表？

Answer 1

您可以通过这种方式将它们保存到会话对象中。列表加载会话数据，添加新项目，会话更新列表。通过这样做，会话将始终在每次上载后保留数据，而不是替换现有的数据。

<强> C＃

    //global declaration    

    private List<string> UploadList;

    protected void AjaxFileUpload1_UploadComplete()
    {
        String fileName = IO.Path.GetFileName(e.FileName);
        UploadList = Session["UploadedFiles"];
        UploadList.Add(fileName);
        Session["UploadedFiles"] = UploadList;
    }

    //retrieve the items from list
    private void GetList()
    {
        UploadList = Session["UploadedFiles"];
        //loop through the list or access each item by the index
    }

VB

'global declaration    
Dim UploadList as List(Of String)

Protected Sub AjaxFileUpload1.UploadComplete()
Dim fileName = IO.Path.GetFileName(e.FileName)
UploadList = Session("UploadedFiles")
UploadList.Add(fileName)
Session("UploadedFiles") = UploadList
End Sub

'retrieve the items from list
Private Sub GetList()
UploadList = Session("UploadedFiles")
'loop through the list or access each item by the index
End Sub

尝试使用ajaxfileupload获取所有上传的文件名

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