How do I check two textboxes for two dates
<p>One has txtDateReceived and second has txtVendorPackDate. Before insert will add record I have to check if txtDateReceived is not erlier then txtVendorPackDate. I try use TextChanged event. </p>

<pre><code>protected void txtVendorPackDate_TextChanged(object sender, EventArgs e)
{
    DateTime fromDate = DateTime.MinValue;
    DateTime toDate = DateTime.MaxValue;
    bool parseResultMin = DateTime.TryParse(txtVendorPackDate.Text, out fromDate);
    bool parseResultMax = DateTime.TryParse(txtDateReceived.Text, out toDate);
    if (toDate &lt; fromDate)
    {
        txtVendorPackDate.Text = "";
        lblDateExpired.Visible = true;
        lblDateExpired.Text = "Selected date is incorrect, please enter correct data.";
        txtVendorFatPerc.Focus();
    }

    double expired = toDate.Subtract(fromDate).TotalDays;

    if (expired &gt;= 60)
    {

        lblDateExpired.Text = "Date Expired " + expired + " days after pack day!!!" 
        lblDateExpired.Visible = true;
    }  
} 
</code></pre>

<p>How I could do it from client side not using controls validation.</p>
