count all the characters I have used in a textbox c#

Question

I want to calculate all the number of characters I have used in a textbox.
For example: If I write this equation in textbox:
5x-2(3y+2)*3y(8)
so what code or line should I write for counting all the parenthesis used here?

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Answer 1

var strEquation=textbox1.Text; //5x-2(3y+2)*3y(8)

int x = strEquation.Count(c => Char.IsNumber(c)); // 6
int y = strEquation.Count(c => Char.IsLetter(c)); // 3

int total=x+y;

Let me know if it works?

count all the characters I have used in a textbox c#

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