没有添加到组合框的项目

Question

I just started learning C# today. And I proceed already in creating GUI since some syntax are just like Java. Here's what I did so far:

Click on the ComboBox in , Design tab. Then it directed me a method. Inside the method, here is my code:

private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
{
    int days = 31;
    for (int i = 1; i <= days; i++)
    {
        this.dayComboBox.Items.Add(i);
    }
}

But it's not adding to the ComboBox. What am I doing wrong ?

Answer 1

private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
{
    //some other code

}

private void Form_Load(object sender, EventArgs e)
{
    int days = 31;
    for (int i = 1; i <= days; i++)
    {
        this.dayComboBox.Items.Add(i);
    }
}

SelectedIndexChanged never seems to be changing. Plus any time you change the index, you'll re-add all the items again. Form_Load would be better. Load it once....done.