c# add value to textbox value that has letters

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i have 2 textboxes in the same form : textbox1 and textbox2

in textbox1 user enters 3 letters and number so it will look like this : abc111 as an example

I need textbox2 to add 1 to the numbers in textbox1 and give result like this :

abc112

how to do that in code plz

Posted 20-Oct-15 2:31am

Ahmed Zoeil

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2 solutions

Solution 2

You have to split the input string (that is "abc111") in the 'alphabetic' one (namely "abc") and 'numeric' "111" (you may use the fact that 'alphabetic' string is three characters long) and then convert the latter into a number. Increment such number and built a fresh string for textbox2 using the 'alphabetic' string and the properly formatted incremented number.

Posted 20-Oct-15 2:44am

CPallini

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Krunal Rohit · Accepted Answer · 2015-10-20T02:44:00

Solution 1

C#

Regex reg = new Regex(@"([a-zA-Z]+)(\d+)");
Match result = reg.Match(TextBox1.Text);

string txt = result.Groups[1].Value;
string num = result.Groups[2].Value;

TextBox2.Text = txt + (int.Parse(num) + 1);

-KR

Posted 20-Oct-15 2:44am

Krunal Rohit

Comments

Ahmed Zoeil 20-Oct-15 9:03am

regex and Match have redlines under them says : the type or namespace could not be found

Ahmed Zoeil 20-Oct-15 9:09am

I got it had to add using System.Text.RegularExpressions;

Krunal Rohit 20-Oct-15 9:40am

Hmm, you have to.

-KR

Krunal Rohit 20-Oct-15 12:16pm

Why is it down-voted even after OP accepted the solution ?

-KR

Ahmed Zoeil 20-Oct-15 12:56pm

down voted !!?

Krunal Rohit 20-Oct-15 13:25pm

Yes, somebody did.

-KR