Find Text in String with C#

Find text in string with C#

Use this method:

public static string getBetween(string strSource, string strStart, string strEnd)
{
    if (strSource.Contains(strStart) && strSource.Contains(strEnd))
    {
        int Start, End;
        Start = strSource.IndexOf(strStart, 0) + strStart.Length;
        End = strSource.IndexOf(strEnd, Start);
        return strSource.Substring(Start, End - Start);
    }

    return "";
}

How to use it:

string source = "This is an example string and my data is here";
string data = getBetween(source, "my", "is");

C# find words on a String

You need to chain your IndexOf calls, like so:

var i = -1
while (true)
{
     i = strFinal.IndexOf(textoAEncontrar, i+1);
     if (i == -1) break;
     Console.WriteLine("Found string at {0}", i);
}

You may need to improve the boundary checks above but this is the general idea.

How to get specific text from string in C#

I think best thing to do this is with Reguler Expressions, use code below:

Note: I do this like what is example was: Character casing, first and end

public static string GetProfileName(string input)
{
    List<char> result = new List<char>();
    bool startFinding = false;

    foreach (char c in input.ToCharArray())
    {
        // Is match A to Z in upper case?
        if (Regex.IsMatch(c.ToString(), "[A-Z]"))
        {
            result.Add(c);
            startFinding = true;
        }
        else if(startFinding)
        {
            // End looping
            break;
        }
    }

    return new string(result.ToArray());
}

Explain this method

Variables:

At first, I define List<char> as variable, Becuase it will be the result.

And startFinding defines did method start finding characters from A-Z or not.

Method:

I made loop in every character (foreach)

If character was from A-Z in uppercase (using Regex):

Add this character to result

Change startFinding to true

Else if startFinding was true

End this loop (break)

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Results:

ST
S
WT
UBT

How to search a string in String array

Every method, mentioned earlier does looping either internally or externally, so it is not really important how to implement it. Here another example of finding all references of target string

       string [] arr = {"One","Two","Three"};
       var target = "One";
       var results = Array.FindAll(arr, s => s.Equals(target));

Using C# to check if string contains a string in string array

Here is how you can do it:

string stringToCheck = "text1";
string[] stringArray = { "text1", "testtest", "test1test2", "test2text1" };
foreach (string x in stringArray)
{
    if (stringToCheck.Contains(x))
    {
        // Process...
    }
}

Maybe you are looking for a better solution... Refer to Anton Gogolev's answer which makes use of LINQ.

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