increment value for each click

Durga Velusamy

in my application i have one combobox and button

when i click button it needs to generate a code like C001,C002,etc.
how to do this?

7 Replies

Know the answer? Post it — somebody with the same question will find it here.

Khargesh Rajput11y ago

Accepted answer

 if (i > 0)
            {
                int j = i + 1;
                strc00 = "C00" +j.ToString();

            }
            else
            {
                strc00 = "C001";
            }

comboBox1.Items.Add(strc00);
i++;
}

Durga Velusamy11y ago
desktop application . thank u very much to all of you for answering to me.

ok fine . if it textbox means how to give

comboBox1.Items.Add(strc00);
Jignesh Trivedi11y ago
Hi,

Are you developing desktop base application or web base application?

agree with above answer if you are developing desktop application
but approach is different when you use web application because web application is stateless and you have to maintain state by your self

hope this will help you.
Pankaj Kumar Choudhary11y ago
static int Num = 0;
string Str = "C00";
string Stm;
private void button1_Click(object sender, EventArgs e)
{
Num++;

Stm = Str + Num.ToString();

ComboBox1.Items.Add(Stm);

}
Durga Velusamy11y ago
sir,i need the result on combobox Mr.Khargesh Rajput

Khargesh Rajput11y ago

int i=0
string strc00;
onbuttonclick
{
 if (i > 0)
            {
                int j = i + 1;
                strc00 = "C00" +j.ToString();

            }
            else
            {
                strc00 = "C001";
            }
i++;
}

Pankaj Kumar Choudhary11y ago
You can try this ocde:

static int Num = 0;
        string Str = "C00";
        string Stm;
        private void button1_Click(object sender, EventArgs e)
        {
            Num++;

            Stm = Str + Num.ToString();
            MessageBox.Show(Stm);

        }
Ans will be:
C001
C002
C003
-
-
-
-
C0010