How to convert STRING to INT and vice versa?

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Hi programmers there!

I am having a hard time about this one. I have a string in my textbox (milestone_code) and I want to get that string to add another letters to it and the numbers to it will be added by 5. It should be like this:

BOO-45 -----> BOO-CC-50

Can anyone can help me please! I hope you understand my question :)

Posted 20-Jul-14 16:59pm

DarkDreamer08

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DamithSL · Accepted Answer · 2014-07-20T17:13:00

Solution 1

C#

string input ="BOO-45";
string[] parts = input.Split('-');
int number =Int32.Parse(parts[1]) +5;
string result = parts[0] + "-CC-" +number.ToString();

refer :
Int32.Parse Method[^]
C# Split[^]

Posted 20-Jul-14 17:13pm

DamithSL

Updated 20-Jul-14 17:15pm

v2

Comments

DarkDreamer08 21-Jul-14 1:21am

I copied your codes but there is an error pertaining to the line:
int number = Int32.Parse(parts[1])+5;

The error message is "Index was outside the bounds of array"

DamithSL 21-Jul-14 1:30am

what is the input?

DarkDreamer08 21-Jul-14 3:24am

hey, I fix it now. The input is based from a query. But I got a problem with this.

SqlCommand cmd = new SqlCommand("SELECT Milestone_Code FROM tblMilestone WHERE Milestone_Name = '"+DropdownList1.Text+"'");
SqlDataReader dr =cmd.ExecuteReader();

if(dr.HasRows)
{
while(dr.Read)
{
string aa = dr.[0].ToString();
string[] parts = aa.Split('-');
int num = Int32.Parse(parts[1] + 5);
string result = parts[0] + "-CC-" + num.ToString();
TextBox1.Text = result;

}
}
dr.Close();

The problem is that it only display the result for the first item in the dropdownlist. and if I select other Items, the result is the same which should not be. Please help me :))

DarkDreamer08 21-Jul-14 3:25am

Hey, I already fix it now! Thanks for your help. I will mark it as a solution. I hope you could help me again someday :) GOD BLESS!