[Solved] C# get position of a character from string

by 


string aS = "ABCDEFGHI";
char ch="C";
int idx = aS.IndexOf(ch);
MessageBox.Show(string.Format("{0} is in position {1} and between {2} and {3}", ch.ToString(), idx + 1, aS[idx - 1], aS[idx + 1]));

This wont handle if your character is at position zero and some other conditions, you’ll have to figure them out.

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solved C# get position of a character from string