Originally Posted by firebirds98

Im getting a NullReferenceException when I goto add a product to my cart, i get the error when i come to this part

Help with Code Tags

(Toggle Plain Text)

cart.AddProduct(productnumber, name, price, prodQty, knobColor, finishColor)

cart.AddProduct(productnumber, name, price, prodQty, knobColor, finishColor)

I use extremely similar code in another one of my projects and do not come across this problem, I have also researched it for a while and still came across no soltuion.

Help with Code Tags

(Toggle Plain Text)

Protected Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click

        Dim cart As New Cart
        cart = Session("Cart")


        Dim flag As Integer = 1
        Dim finishColor As String = ""
        Dim knobColor As String = ""
        Dim prodQty As Integer = 0
        Dim price As Decimal = 0
        Dim name As String = ""
        Dim productnumber As Integer = 0

        If txtQty.Text <> "" And IsNumeric(txtQty.Text) Then
            prodQty = txtQty.Text
            flag = 0
        Else
            lblError.Text = "Please enter a numeric quantity."
            Return
        End If

        productnumber = prodID
        name = lblName.Text
        price = lblPrice.Text
        prodQty = txtQty.Text
        finishColor = DDFinish.SelectedItem.Text
        knobColor = DDKnob.SelectedItem.Text



        cart.AddProduct(productnumber, name, price, prodQty, knobColor, finishColor)


        Session("Cart") = cart

Protected Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click Dim cart As New Cart cart = Session("Cart") Dim flag As Integer = 1 Dim finishColor As String = "" Dim knobColor As String = "" Dim prodQty As Integer = 0 Dim price As Decimal = 0 Dim name As String = "" Dim productnumber As Integer = 0 If txtQty.Text <> "" And IsNumeric(txtQty.Text) Then prodQty = txtQty.Text flag = 0 Else lblError.Text = "Please enter a numeric quantity." Return End If productnumber = prodID name = lblName.Text price = lblPrice.Text prodQty = txtQty.Text finishColor = DDFinish.SelectedItem.Text knobColor = DDKnob.SelectedItem.Text cart.AddProduct(productnumber, name, price, prodQty, knobColor, finishColor) Session("Cart") = cart

Any help is appreciated!