Variables dont pass after they are out of IDE

Below is a snipit of code after the click event the variables are empty or are just not giving up the goods. The weird part is that when i would debug in VisStudio it worked fine but when I published it broke!!! 

Label2.Text = var1;

Label5.Text = var2;

}
protected void OnClick(object sender, System.EventArgs e)
{

Label3.Text = var1;

Label4.Text = var2;
...