Generally we use single character to split the string. Suppose if you get the situation to split the string by using group of characters, We can perform it like this.
string str = "Thisdotisdotsample";
string[] s = str.Split(new string[] { "dot" }, StringSplitOptions.None);
The output will be,
s[0]="this";
s[1]="is";
s[2]="sample";
