本文整理汇总了VB.NET中System.IO.FileInfo.Exists属性的典型用法代码示例。如果您正苦于以下问题：VB.NET FileInfo.Exists属性的具体用法？VB.NET FileInfo.Exists怎么用？VB.NET FileInfo.Exists使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类System.IO.FileInfo的用法示例。
在下文中一共展示了FileInfo.Exists属性的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
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