The variable values don't change

[Pablo]

Hi,
I have a problem that i can't resolve. I'm sure it's easy, but i don't
know the solution.

I'am writing an aspx page with ASP.net and C#, and in the page i have
two variables like:

namespace prueba
{
public class prueba : System.Web.UI.Page
{
protected System.Web.UI.WebControls.TextBox TextBox1;
private int a;
private string myText;

private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
myText = "Yes";
a = 0;
}
private void TextBox1_TextChanged(object sender, System.EventArgs e)
{
if (myText == "Yes")
a = a + 1;
myText = TextBox1.Text;
}
}
}

Well, all the times i enter in the event of the textbox, always,
myTest = "Yes" and a = 0, it never changes.
Only i can see the change when i'm inside the function, but when it
finish and start again, the value of the variables gets its initial
value.

Somebody can help me???

Thanks