如何搜索所有文件夹和子文件夹中的字符串 [英] How do I search a string in all folder and sub-folder

问题描述

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
    Dim path As String = FolderBrowserDialog1.SelectedPath
    Dim di As New DirectoryInfo(path)
    Dim yourSearchString As String
    yourSearchString = "my string"
    For Each Dir As String In Directory.GetDirectories(FolderBrowserDialog1.SelectedPath)
        ListBox1.Items.Clear()
        ListBox2.Items.Add(Dir)
    Next
    For Each fi As FileInfo In di.GetFiles()
        If File.ReadAllText(fi.FullName).Contains(yourSearchString) Then
            Console.WriteLine(fi.Name)
            ListBox1.Items.Add(fi.Name)
        End If
    Next
End Sub

我尝试过：



我想在更多文件中搜索一个字符串，我的代码可以在一个文件夹中搜索好，但我希望在文件夹根目录下的子文件夹中进行搜索。！

谁可以帮助我，请!!

What I have tried:

I want search a string in more file, and my code can search in one folder good, but i want this search in sub-folder in folder root.!
Who can help me, Please!!

推荐答案

阅读： https://support.microsoft.com/en-us/kb/306666 [ ^ ]

检查：如何：使用后台线程搜索文件 [ ^ ] - 完整的样本！

另一个指南：如何：通过目录树迭代（C＃编程指南） [ ^ ]

Check this: How to: Use a Background Thread to Search for Files[^] - a complete sample!
Another guide: How to: Iterate Through a Directory Tree (C# Programming Guide)[^]

试试这个

Try this

Directory.GetFiles(FolderBrowserDialog1.SelectedPath, "*.*", SearchOption.AllDirectories)

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