C# 如何循环来自 TextReader 的行？
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How to loop over lines from a TextReader?
提问by Colonel Panic
How do I loop over lines from a TextReadersource?
如何循环来自TextReader 的行source？
I tried
我试过
foreach (var line in source)
But got the error
但得到了错误
foreach statement cannot operate on variables of type 'System.IO.TextReader' because 'System.IO.TextReader' does not contain a public definition for 'GetEnumerator'
foreach 语句无法对“System.IO.TextReader”类型的变量进行操作，因为“System.IO.TextReader”不包含“GetEnumerator”的公共定义
采纳答案by Rawling
string line;
while ((line = myTextReader.ReadLine()) != null)
{
DoSomethingWith(line);
}
回答by cuongle
You can use File.ReadLineswhich is deferred executionmethod, then loop thru lines:
您可以使用File.ReadLineswhich 是延迟执行方法，然后通过以下行循环：
foreach (var line in File.ReadLines("test.txt"))
{
}
More information:
更多信息：
回答by Aghilas Yakoub
You can try with this code - based on ReadLine method
您可以尝试使用此代码 - 基于 ReadLine method
string line = null;
System.IO.TextReader readFile = new StreamReader("...."); //Adjust your path
while (true)
{
line = readFile.ReadLine();
if (line == null)
{
break;
}
MessageBox.Show (line);
}
readFile.Close();
readFile = null;
