how to pass value from asp.net server control using jQuery? 2nd try
I want to pass the value of the label control (lblNames) via jQuery. The current code is not working. I'm using the label control to collect the uploaded file names in code behind. Is there a way?
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="FileUploader.aspx.vb" Inherits="FileUploader" EnableEventValidation="false" %>
<!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 id="Head1" runat="server">
<base target="_self" />
<title>eReserve: Upload Multiple Files</title>
<script src="js/jquery-1.4.2.js" type="text/javascript"></script>
<script src="js/jquery.MultiFile.js" type="text/javascript"></script>
<script type="js/thickbox.js"></script>
</head>
<body>
<form id="form1" runat="server" name="uploader">
<div id="upload">
<b>Click "Browse" or "Choose File" to upload a file. <br /><br />(If have additional files to upload, click "Browse" or "Choose File" button again).</b><br /><br />
<asp:FileUpload ID="FileUpload1" runat="server" class="multi" /> <br />
<asp:Button ID="btnUpload" runat="server" Text="Upload All" /> <br /><br />
<asp:Label ID="lblFiles" runat="server" ForeColor="Gr开发者_Python百科een"></asp:Label> <br /><br />
<asp:Label ID="lblWarning" runat="server" ForeColor="Red"></asp:Label> <br /><br />
<asp:Label ID="lblCloseWindow" runat="server" ForeColor="Red"></asp:Label> <br /><br />
<asp:Label ID="lblNames" runat="server" class="uploadedNames" visible="true" ></asp:Label>
<input type="submit" id="closeWindow" value="Close Window" onclick="self.parent.tb_remove(); " />
</div>
</form>
<script type="text/javascript">
$(document).ready(function () {
$("#btnUpload").click(function () {
var lblNamesValue = $("#lblNames").val();
$("#Notes", top.document).val(lblNamesValue);
});
});
</script>
</body>
</html>
Code behind:
Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpload.Click
Dim fileExt As String
fileExt = System.IO.Path.GetExtension(FileUpload1.FileName)
If (fileExt <> ".exe") Then
Dim fileNames As New List(Of String)
Try
Dim hfc As HttpFileCollection = Request.Files
lblFiles.Text = String.Empty
lblNames.Text = String.Empty
For i As Integer = 0 To hfc.Count - 1
Dim hpf As HttpPostedFile = hfc(i)
If hpf.ContentLength > 0 Then
fileNames.Add(hpf.FileName)
hpf.SaveAs(Server.MapPath("/directory") & "\" & System.IO.Path.GetFileName(hpf.FileName))
lblFiles.Text += "<b>File: </b>" & hpf.FileName & " " & " Uploaded Successfully! <br />"
lblNames.Text += hpf.FileName & ", "
Else
lblWarning.Text = "Please choose a file to upload."
End If
Next i
Catch ex As Exception
End Try
In your jQuery selector, you need to pass it the ID that ASP.NET generates. Try something like this:
$('#<%=lblNames.ClientID %>').text();
.val() is typically used for just input types. Try using .html() or something to just grab the text.
加载中,请稍侯......
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