EN
C# / .NET - string contains
11 points
In C# / .NET it is possible to check string existence in following ways.
xxxxxxxxxx1
string text = "My name is John.";2
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if (text.Contains("John"))4
Console.WriteLine("Text contains John name.");Output:
xxxxxxxxxx1
Text contains John name.xxxxxxxxxx1
string text = "My name is John.";2
int index = text.IndexOf("John");3
4
if (index != -1)5
Console.WriteLine("Text contans John name.");Output:
xxxxxxxxxx1
Text contains John name.xxxxxxxxxx1
string text = "My name is John.";2
int index = text.LastIndexOf("John");3
4
if (index != -1)5
Console.WriteLine("Text contans John name.");Output:
xxxxxxxxxx1
Text contains John name.xxxxxxxxxx1
string text = "My name is John.";2
Regex regex = new Regex("John");3
4
if (regex.IsMatch(text))5
Console.WriteLine("Text contans John name.");Output:
xxxxxxxxxx1
Text contains John name.