Gets the full path of the file on the client's computer.
Namespace: System.Web.UI.HtmlControls
Assembly: System.Web (in system.web.dll)
Visual Basic (Declaration)
Public Overrides Property Value As String
Dim instance As HtmlInputFile
Dim value As String
value = instance.Value
instance.Value = value
public override string Value { get; set; }
public:
virtual property String^ Value {
String^ get () override;
void set (String^ value) override;
}
/** @property */
public String get_Value ()
/** @property */
public void set_Value (String value)
public override function get Value () : String
public override function set Value (value : String)
Property Value
The full path of the client's file.
The Value property retrieves the full path of the file on the client's computer (for example "C:\MyFiles\Test.txt"). This is useful when you need to know where the file is stored on the computer submitting the file. This property is also commonly used to determine the original file name. To get the original file name, parse the value of this property.
.gif) Note |
|---|
| The Value property is read-only. If you attempt to assign a value to this property, a System.NotSupportedException is thrown. |
The following code example demonstrates how to use the Value property to display the full path of the file on the client's computer. For this example to work properly, you need to create a directory called Temp on your computer's drive C.
<%@ Page Language="VB" AutoEventWireup="True" %>
<script runat="server">
Public Sub Button1_Click(ByVal Source As Object, ByVal e As EventArgs)
' Make sure a file was submitted.
If Text1.Value = "" Then
Span1.InnerHtml = "Error: You must enter a file name."
Return
End If
' Save the file.
If File1.PostedFile.ContentLength > 0 Then
Try
File1.PostedFile.SaveAs("c:\temp\" & Text1.Value)
Span1.InnerHtml = "<b>" & File1.Value & "</b>" & _
" uploaded successfully to <b>c:\temp\" & _
Text1.Value & "</b> on the Web server."
Catch exc As Exception
Span1.InnerHtml = "Error saving file <b>c:\temp\" & _
Text1.Value & "</b><br>" & exc.ToString() & "."
End Try
End If
End Sub
</script>
<html>
<head>
<title>HtmlInputFile Example</title>
</head>
<body>
<h3>HtmlInputFile Example</h3>
<form enctype="multipart/form-data"
runat="server">
Select File to Upload:
<input id="File1"
type="file"
runat="server">
<p>
Save as file name (no path):
<input id="Text1"
type="text"
runat="server">
</p>
<p>
<span id=Span1
style="font: 8pt verdana;"
runat="server" />
</p>
<p>
<input type=button
id="Button1"
value="Upload"
onserverclick="Button1_Click"
runat="server">
</p>
</form>
</body>
</html>
<%@ Page Language="C#" AutoEventWireup="True" %>
<script runat="server">
void Button1_Click(object Source, EventArgs e)
{
// Make sure a file was submitted.
if (Text1.Value == "")
{
Span1.InnerHtml = "Error: You must enter a file name.";
return;
}
// Save the file.
if (File1.PostedFile.ContentLength > 0)
{
try
{
File1.PostedFile.SaveAs("c:\\temp\\" + Text1.Value);
Span1.InnerHtml = "<b>" + File1.Value + "</b>" +
" uploaded successfully to <b>c:\\temp\\" +
Text1.Value + "</b> on the Web server.";
}
catch (Exception exc)
{
Span1.InnerHtml = "Error saving file <b>c:\\temp\\" +
Text1.Value + "</b><br>" + exc.ToString() + ".";
}
}
}
</script>
<html>
<head>
<title>HtmlInputFile Example</title>
</head>
<body>
<h3>HtmlInputFile Example</h3>
<form enctype="multipart/form-data"
runat="server">
Select File to Upload:
<input id="File1"
type="file"
runat="server">
<p>
Save as file name (no path):
<input id="Text1"
type="text"
runat="server">
</p>
<p>
<span id=Span1
style="font: 8pt verdana;"
runat="server" />
</p>
<p>
<input type=button
id="Button1"
value="Upload"
onserverclick="Button1_Click"
runat="server">
</p>
</form>
</body>
</html>
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
.NET Framework
Supported in: 2.0, 1.1, 1.0