VB+asp.net上传文件

MultiUpload.aspx

<%@ Page Language="vb" AutoEventWireup="false" Codebehind="MultiUpload.aspx.vb" Inherits="aspxWeb.MultiUpload" %> > DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > <HTML> <HEAD> <title>多文件上传</title> </HEAD> <body> <script language="JavaScript"script> <center> <script language="JavaScript"script></asp:Label> <P id="MyFile"><INPUT type="file" size="50" NAME="File"></P> <P> <input type="button" value="增加(Add)" onclick="addFile()"> <script language="JavaScript"script></asp:Button> <input onclick="this.form.reset()" type="button" value="重置(ReSet)"> </P> </center> <P align="center"> <script language="JavaScript"script></asp:Label> </P> </form> </body> </HTML>

后代码：MultiUpload.aspx.vb

Public Class MultiUpload Inherits System.Web.UI.Page Protected WithEvents Upload As System.Web.UI.WebControls.Button Protected WithEvents MyTitle As System.Web.UI.WebControls.Label Protected WithEvents strStatus As System.Web.UI.WebControls.Label #Region " Web Form Designer Generated Code " 'This call is required by the Web Form Designer. <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() End Sub Private Sub Page_Init(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Init 'CODEGEN: This method call is required by the Web Form Designer 'Do not modify it using the code editor. InitializeComponent() End Sub #End Region Private Sub Page_Load(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load MyTitle.Text = "<h3>多文件上传</h3>" Upload.Text = "开始上传" If (Me.IsPostBack) Then Me.SaveImages() End Sub Private Function SaveImages() As System.Boolean '遍历File表单元素 Dim files As System.Web.HttpFileCollection = System.Web.HttpContext.Current.Request.Files '状态信息 Dim strMsg As New System.Text.StringBuilder("上传的文件分别是：<hr color=red>") Dim iFile As system.int32 Try For iFile = 0 To files.Count - 1 '检查文件扩展名字 Dim postedFile As System.Web.HttpPostedFile = files(iFile) Dim fileName,fileExtension As System.String fileName = System.IO.Path.GetFileName(postedFile.FileName) If Not (fileName = String.Empty) Then fileExtension = System.IO.Path.GetExtension(fileName) strMsg.Append("上传的文件类型：" + postedFile.ContentType.ToString() + "<br>") strMsg.Append("客户端文件地址：" + postedFile.FileName + "<br>") strMsg.Append("上传文件的文件名：" + fileName + "<br>") strMsg.Append("上传文件的扩展名：" + fileExtension + "<br><hr>") '可根据扩展名字的不同保存到不同的文件夹 postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath("images/") + fileName) End If Next strStatus.Text = strMsg.ToString() Return True Catch Ex As System.Exception strStatus.Text = Ex.Message Return False End Try End Function End Class

原文地址：https://www.jb51.cc/vb/261489.html

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