本文整理匯總了VB.NET中System.IO.FileInfo.Exists屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET FileInfo.Exists屬性的具體用法？VB.NET FileInfo.Exists怎麽用？VB.NET FileInfo.Exists使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類System.IO.FileInfo的用法示例。
在下文中一共展示了FileInfo.Exists屬性的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: OpenDataFile
Function OpenDataFile(ByVal FileName As String) As Byte()
' Check the FileName argument.
If FileName Is Nothing OrElse FileName.Length = 0 Then
Throw New ArgumentNullException("FileName")
End If
' Check to see if the file exists.
Dim fInfo As New FileInfo(FileName)
' You can throw a personalized exception if
' the file does not exist.
If Not fInfo.Exists Then
Throw New FileNotFoundException("The file was not found.", FileName)
End If
' Open the file.
Dim fStream As New FileStream(FileName, FileMode.Open)
' Create a buffer.
Dim buffer(fStream.Length) As Byte
' Read the file contents to the buffer.
fStream.Read(buffer, 0, Fix(fStream.Length))
' return the buffer.
Return buffer
End Function