c# - C#扫描文件属性

Question

    private void Scan_files_Click(object sender, EventArgs e)
    {
        for (int i = 0; i < listView1.Items.Count; i++)
        {
            string filePath = Convert.ToString(listView1.Items[i]);
           // MessageBox.Show("Files found: " + filePath, "Message");
           // FileAttributes fileAttributes = File.GetAttributes(filePath);
            if (((File.GetAttributes(filePath) & FileAttributes.ReadOnly) == FileAttributes.ReadOnly) && ((File.GetAttributes(filePath) & FileAttributes.Hidden) == FileAttributes.Hidden) && ((File.GetAttributes(filePath) & FileAttributes.System) == FileAttributes.System))
            {
                MessageBox.Show("File's Attributes: " + File.GetAttributes(filePath));
            }
            else
                MessageBox.Show(" NO matching attrbutes");
        }
    }

我不能让这个工作：S

Answer 1

您可以使用这段代码查看文件属性：

for (int i = 0; i < listView1.Items.Count; i++)
{
    string filePath = Convert.ToString(listView1.Items[i]);

    if (!File.Exists(filePath))
        return;
    //make sure you have a correct file path in filePath variable

    // check whether a file is read only
    bool isReadOnly = ((File.GetAttributes(filePath) & FileAttributes.ReadOnly) == FileAttributes.ReadOnly);

    // check whether a file is hidden
    bool isHidden = ((File.GetAttributes(filePath) & FileAttributes.Hidden) == FileAttributes.Hidden);

    // check whether a file is system file
    bool isSystem = ((File.GetAttributes(filePath) & FileAttributes.System) == FileAttributes.System);

    if (isReadOnly || isHidden || isSystem)
        MessageBox.Show("File's Attributes: " + File.GetAttributes(filePath));
    else
        MessageBox.Show("No. matching attrbutes");
}

参考：文件属性 [C#]

快乐的编码...

Answer 2

调查filePath你实际得到什么，你可以使用断点，或者在你调用 File.GetAttributes 之前，尝试：

if (!File.Exists(filePath))
{
    MessageBox.Show(String.Format("File {0} not found.", filePath));
}