📄 ch13-02-03.aspx
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<%@ Import Namespace="System.IO" %>
<Html>
<Head>
<Title>Ch13-02-03.aspx 如何删除文件</Title>
<Script Language="VB" Runat="Server">
Sub Button1_Click(Obj As Object, E As EventArgs)
If Trim(File1.Text) = "" then
Show1.InnerHTML = "请输入文件名称！"
Exit Sub
End If
Show1.InnerHtml = ""
Dim FileName As String = File1.Text
Dim Files As New FileInfo(FileName)
Dim blnRet As Boolean
blnRet = FileExists(Files, FileName)
If BlnRet = False Then
Show1.InnerHTML = Show1.InnerHTML & "文件不存在，无法删除文件！<BR>"
Else
Show1.InnerHTML = Show1.InnerHTML & "文件存在，可以删除文件！<BR>"
DeleteFile(Files, FileName)
End if
End Sub
' 检查文件是否存在
Function FileExists(Files As FileInfo, _
FileName As String) As Boolean
If Files.Exists Then
FileExists = True
Else
FileExists = False
End if
End Function
' 删除文件
Sub DeleteFile(Files As FileInfo, FileName As String)
Files = New FileInfo(FileName)
Files.Delete()
End Sub
</Script>
</Head>
<Body>
<Form Runat="Server">
文件名称：
<asp:TextBox ID="File1" Columns="50"
Runat="Server" /><P>
<asp:Button ID="Button1" Text="删除文件"
OnClick="Button1_Click" Runat="Server" />
<asp:Label ID="Label1" BorderStyle="Double"
BorderColor="#FF0000" Runat="Server" />
</Form>
<Span ID="Show1" Runat="Server" />
</Body>
</Html>
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