How to split an string

string Value="122012";
string s1=Value.SubString(0,2);
string s2=Value.SubString(2,4);

this is just coded for test to get two strings for the requirement

Try using Substring instance in C#.

string str = "122014";
string s1 = str.Substring(0, 2);
string s2 = str.Substring(2, 4);

string yrs="122012";

StringBuilder firstPart=new StringBuilder();
StringBuilder secondPart=new StringBuilder();

for(int i=0;i<yrs.length;i++)>
{
if (i < 2)
{
firstPart.Append(yrs[i]);
}
else
{
secondPart.Append(yrs[i]);
}
}

Learn to do it yourself: substring[^]