check if string exists in a file
c#, streamreader, string
Solution
I would recommend seting and flag and checking it as follows...
using (StreamReader sr = File.OpenText(path))
{
string[] lines = File.ReadAllLines(path);
bool isMatch = false;
for (int x = 0; x < lines.Length - 1; x++)
{
if (domain == lines[x])
{
sr.Close();
MessageBox.Show("there is a match");
isMatch = true;
}
}
if (!isMatch)
{
sr.Close();
MessageBox.Show("there is no match");
}
}
Good Luck!
Problem
I have the following piece of code which opens a text file and reads all the lines in the file and storing it into a string array. Which then checks if the string is present in the array. However the issue I'm facing is that whenever a string is found, it always shows "there is a match" as well as "there is no match". Any idea how to fix this? check this code: ``` using (StreamReader sr = File.OpenText(path)) { string[] lines = File.ReadAllLines(path); for (int x = 0; x < lines.Length - 1; x++) { if (domain == lines[x]) { sr.Close(); MessageBox.Show("there is a match"); } } if (sr != null) { sr.Close(); MessageBox.Show("there is no match"); } } ```