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By Neil - Fri 30 Sep 2011
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Hi, we seem to be getting the following error frequently. Any ideas?
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>> URL:http://www.mtmc.co.uk/Product.aspx?ProductID=58108&CategoryID=12732401&strParent=73,12732400&L=1
>> Page:
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>> 30/09/2011 15:42:01
>> 180.76.5.165
>> DESCRIPTION:
System.InvalidCastException: Conversion from type 'DBNull' to type 'Boolean' is not valid.
at Microsoft.VisualBasic.CompilerServices.Conversions.ToBoolean(Object Value)
at BasketBLL.GetCouponDiscount(String strCouponCode, String& strCouponError, String& strCouponType, Double& numCouponValue)
at BasketBLL.CalculateCoupon(String strCouponCode, String& strCouponError, Boolean blnZeroTotalTaxRate)
at Templates_BasketView.LoadBasket()
at Templates_BasketView.Page_Load(Object sender, EventArgs e)
at System.Web.UI.Control.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
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By saturation - Fri 30 Sep 2011
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Are you able to replicate the error by clicking on the same thing? If so, what is it you are clicking on that is generating the error?
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By Paul - Fri 30 Sep 2011
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I clicked the link and the page didn't appear to error for me. The trace includes some info relating to coupons - do you have any coupons live? Is it possible to set up a reusable test coupon with minimal value to test with?
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By Neil - Sat 1 Oct 2011
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It is odd, when it errors, every page load seems to throw it until I recycle the application pool (to be honest I have never left it long enough to see if it cures itself). We have never used coupons at all, but will try and see if I can reproduce. I wonder if a db field type is incorrect?
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By Neil - Sat 1 Oct 2011
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Just checked and we did have an old live 'test' coupon that has expired in 2010. Have deleted that. Will see if it happens again...
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