How to find whether a string array contains some part of string? I have array like this
String[] stringArray = new [] { "[email protected]", "[email protected]", "@gmail.com" };
string str = "[email protected]"
if (stringArray.Any(x => x.Contains(str)))
{
//this if condition is never true
}
i want to run this if block when str contains a string thats completely or part of any of array's Item.
Assuming you've got LINQ available:
bool partialMatch = stringArray.Any(x => str.Contains(x));
Even without LINQ it's easy:
bool partialMatch = Array.Exists(stringArray, x => str.Contains(x));
or using C# 2:
bool partialMatch = Array.Exists(stringArray,
delegate(string x) { return str.Contains(x)); });
If you're using C# 1 then you probably have to do it the hard way :)
If you're looking for if a particular string in your array contains just "@gmail.com" instead of "[email protected]" you have a couple of options.
On the input side, there are a variety of questions here on SO which will point you in the direction you need to go to validate that your input is a valid email address.
If you can only check on the back end, I'd do something like:
emailStr = "@gmail.com";
if(str.Contains(emailStr) && str.length == emailStr.length)
{
//your processing here
}
You can also use Regex matching, but I'm not nearly familiar enough with that to tell you what pattern you'd need.
If you're looking for just anything containing "@gmail.com", Jon's answer is your best bets.
