循环遍历 VB.NET 中的文本文件的行 [英] Loop through the lines of a text file in VB.NET

问题描述

我有一个文本文件，里面有几行文本.

I have a text file with some lines of text in it.

我想遍历每一行，直到找到我想要的项目*，然后以标签的形式将其显示在屏幕上.

I want to loop through each line until an item that I want is found*, then display it on the screen, in the form of a label.

*我正在通过文本框搜索该项目.

*I am searching for the item through a textbox.

也就是说，在 sudo 中:

That is, in sudo:

For i = 0 To number of lines in text file
    If txtsearch.text = row(i).text Then
        lbl1.text = row(i).text
Next i

推荐答案

您可以使用 File.ReadLines 方法 以便在整个文件中迭代，一次一行.这是一个简单的例子:

You can use the File.ReadLines Method in order to iterate throughout your file, one line at a time. Here is a simple example:

    Dim Term As String = "Your term"
    For Each Line As String In File.ReadLines("Your file path")
        If Line.Contains(Term) = True Then
            ' Do something...Print the line
            Exit For
        End If
    Next

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