previously, i had added an "itemCode" column to the db and got it to work in the site by copy/paste/edit the code for the "description" column in sqlcatalogprovider.vb, item.vb and category.vb and adding the Eval... code to item.aspx and itemdetail.aspx.

because the 400 images i have for the items are all different sizes/proportions, i can't use the method that comes with the starter kit to just display them at fixed sizes, so i've added larger images for the items and that's what i want to display on the itemdetail.aspx page.  i've used the same process as before, just going through the site where i had added the itemCode code and added in code for the imgLrgUrl column.  but it ain't werkink.

i get the error below about the GridViewItems.DataBind() in items.aspx.vb.  if i comment back out all the imgLrgUrl related code, it works fine, i just get the small images same as is shown on the items page.

Any help would be greatly appreciated.

Section of items.aspx.vb where it stops:

' now display the correct panel (categories or items)

If currCategories.Count = 0 Then

PanelItems.Visible = True

PanelCategories.Visible = False

Else

PanelItems.Visible = False

PanelCategories.Visible = True

End If

Error it throws:

System.Reflection.TargetInvocationException was unhandled by user code
  Message="Exception has been thrown by the target of an invocation."
  Source="mscorlib"
  StackTrace:
       at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)    at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)    at System.Web.UI.WebControls.ObjectDataSourceView.InvokeMethod(ObjectDataSourceMethod method, Boolean disposeInstance, Object& instance)    at System.Web.UI.WebControls.ObjectDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments)    at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback)    at System.Web.UI.WebControls.DataBoundControl.PerformSelect()    at System.Web.UI.WebControls.BaseDataBoundControl.DataBind()    at System.Web.UI.WebControls.GridView.DataBind()    at ItemsPage.Page_Load() in C:\Websites\smlbzqsk\Items.aspx.vb:line 75    at System.Web.Util.CalliHelper.ArglessFunctionCaller(IntPtr fp, Object o)    at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)    at System.Web.UI.Control.OnLoad(EventArgs e)    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
  InnerException: System.IndexOutOfRangeException
       Message="imgLrgUrl"
       Source="System.Data"
       StackTrace:
            at System.Data.ProviderBase.FieldNameLookup.GetOrdinal(String fieldName)    at System.Data.SqlClient.SqlDataReader.GetOrdinal(String name)    at System.Data.SqlClient.SqlDataReader.get_Item(String name)    at SqlCatalogProvider.GetChildItems(String parentCategoryId) in C:\Websites\smlbzqsk\App_Code\Catalog\SqlCatalogProvider.vb:line 60    at Catalog.GetChildItems(String categoryId) in C:\Websites\smlbzqsk\App_Code\Catalog\Catalog.vb:line 34
       InnerException:

how about just a comment if it seems like i'm generally doing it right and the problem is likely just some small typo or something.

or maybe there's a way to debug it i should be using?  i've been through the menus and not found anything i can understand about debugging.  i was looking for a way to see what the actual values were in an array at a particular point but haven't seen that.  is there some such?

thanks again.

Somebody might be able to help if you post the gridview and datasource markup and code. And SQL select statement.