How to do calculations with autopostback so there's no screen flicker
<p>I have a form that does an autopostback whenever a user select a number from the dropdownlist on the web form.  The autopostback runs the code below which calculates the numbers of the form.</p>

<p>Screenshot:</p>

<p><img src="http://i.stack.imgur.com/VBG6l.jpg" alt="enter image description here"></p>

<p>Problem is I get a nasty flicker on the screen everytime is recalculates / autopostback.</p>

<p>Is there another way to code this to stop the flicker?</p>

<p>C#</p>

<pre><code>protected void Page_Load(object sender, EventArgs e)
{

    int intNum1 = 0;
    int intNum2 = 0;
    int intNum3 = 0;
    int totalt = 0;

    intNum1 = int.Parse(ddlNoadults.SelectedValue);
    intNum2 = int.Parse(ddlNoseniors.SelectedValue);
    intNum3 = int.Parse(ddlNochildren.SelectedValue);

    totalt = (intNum1 * 10) + (intNum2 * 8) + (intNum3 * 6);

    tbTotal.Text = totalt.ToString();

}
</code></pre>

<p>Regards</p>

<p>Tea</p>
