javascript with if statment to fire buttons in code behind asp.net c#

Question

i am adding products in gridview and a im checking if the las record exist in list i have a messege to update the existed record or delete the last inserted! Below is my code but it does not work! can anyone help me?

public void SaveToList()
        {
            try
            {
                OrdersDataContext contex = DataContextSingleton.Instance;

                _order = new Order();
                _order.quant = Int32.Parse(quant.Text);
                _order.price = price.Text;
                _order.totalprice = Decimal.Parse(totprice.Text);
                _order.discoun_id = Int32.Parse(TextBox3.Text);
                _order.prod_id = Int32.Parse(TextBox2.Text);
                _order.regist_id = Int32.Parse(TextBox4.Text);

                _readyToSave.Add(_order);
                //contex.Orders.InsertOnSubmit(ord);
                //contex.SubmitChanges();
                if (_readyToSave.Count() != 0)
                {
                    var selectO = (from o in _readyToSave
                                   orderby o.prod_id
                                   select new
                                   {
                                       val1 = o.prod_id
                                   }).Last();

                    TextBox15.Text = selectO.val1.ToString();

                    var selectpr = from p in _readyToSave
                                   where (p.prod_id == Int32.Parse(TextBox15.Text))
                                   select p;
                    if (selectpr.Count() > 0)
                    {
                        btnAdd.Attributes.Add("onclick", "var agree=confirm('This product exist on you order! Do you want to update it???'); if (agree){document.getElementById('<%= btnUpdate%>').click();} else{document.getElementById('<%= btnDelNew %>' ).click();}");
                        //Response.Write("<script language='javascript'>alert('This product already have been added in list!!!')</script>");
                    }
                }

                ClearTheFields();
                Sum();
            }
            catch
            {
            }

        }

don't know why but it stops working, doesn't call button.. btnAdd.Attributes.Add("onclick", "var agree=confirm('This product exists on you order! Do you want to update it???'); if (agree){document.getElementById('" + btnUpdate.ClientID + "').click();} else{document.getElementById('" + btnDelNew.ClientID + "' ).click();}"); can anyone help me???

Aghilas Yakoub · Accepted Answer · 2012-06-22 10:35:50Z

1

try with the ClientId property

btnAdd.Attributes.Add("onclick", "var agree=confirm('This product exist on you order! Do you want to update it???'); if (agree){document.getElementById('<%= btnUpdate.ClientId%>').click();} else{document.getElementById('<%= btnDelNew.ClientId %>' ).click();}");

answered Jun 22, 2012 at 10:35

Aghilas Yakoub

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1 Comment

freefaller Over a year ago

Please excuse the question: I have limited knowledge of the GridView, but will having the literal <%=btnUpdate.ClientId%> within the attribute of a button be automatically parsed as ctr001_btnUpdate (for example)? My gut feeling is that it will simply be sent to the brower as literally just <%=btnUpdate.ClientID%>

pete · Accepted Answer · 2012-06-22 10:51:55Z

0

You have the button names defined as <%= btnUpdate%> and <%= btnDelNew %>. They should be defined as <%= btnUpdate.ClientID %> and <%= btnDelNew.ClientID %>.

UPDATE: If freefaller's gut feeling is correct (I haven't tested the above), then add the onclick attribute as the following:

btnAdd.Attributes.Add("onclick", "var agree=confirm('This product exist on you order! Do you want to update it???'); if (agree){document.getElementById('" + btnUpdate.ClientID + "').click();} else{document.getElementById('" + btnDelNew.ClientID + "' ).click();}");

edited Jun 22, 2012 at 10:51

answered Jun 22, 2012 at 10:35

pete

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1 Comment

freefaller Over a year ago

Please excuse the question: I have limited knowledge of the GridView, but will having the literal <%=btnUpdate.ClientId%> within the attribute of a button be automatically parsed as ctr001_btnUpdate (for example)? My gut feeling is that it will simply be sent to the brower as literally just <%=btnUpdate.ClientID%>

freefaller · Accepted Answer · 2012-06-22 10:51:58Z

0

I'm answering this without a real knowledge of GridViews, but my gut feeling is that you're literally sending the text <%=btnUpdate%> (or <%=btnUpdate.ClientID%>) to the browser.

What I think you need to do is change the line starting with...

btnAdd.Attributes.Add("onclick"...

To...

btnAdd.Attributes.Add("onclick", "var agree=confirm('This product exist on you order! Do you want to update it???'); if (agree){document.getElementById('" + btnUpdate.ClientID + "').click();} else{document.getElementById('" + btnDelNew.ClientID + "' ).click();}");

answered Jun 22, 2012 at 10:51

freefaller

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