button click event being called twice on click

From: mike parr (mparr_1972_at_yahoo.co.uk)
Date: 05/20/04 

Date: Thu, 20 May 2004 08:27:56 -0700

I have an button which calls its Click procedure twice when clicked.
This is my code :

public void btnAddToCartPersonal_Click(object sender,
System.Web.UI.ImageClickEventArgs e)
                {
                        //validate text boxes
                        bool blnEmpty = false;
                        string strQuantity;
                        
                        //clear label
                        lbl1.Text = "";

                        for (int i=0; i < dgPersonalNumbering.Items.Count; i++)
                        {
                                strQuantity =
((TextBox)dgPersonalNumbering.Items[i].FindControl("txtQuantity")).Text;

                                if (strQuantity == "")
                                {
                                        blnEmpty = true;
                                }
                        }

                        if (blnEmpty == true)
                        {
                                lbl1.Text = "Please enter Quantity";
                        }

                }

Does anybody know why it is getting called twice?

Thanks,

Mike

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