Specified Cast with no reference to line with problem

[.Net Sports]

I'm getting a "Specified cast is not valid" error that does not point
to the line with the code in error, but instead :An unhandled exception
was generated during the execution of the current web request.
Information regarding the origin and location of the exception can be
identified using the exception stack trace below.

The stack trace is just a lot of system class stuff with no real
explanation of where the error is. Wondering the best way to decipher a
stack trace in such a case.
thanks
..NetSports

[Jeff Barnes]

Can you post the stack trace from the exception?

Jeff Barnes
Microsoft Certified Application Developer

..Net Sports wrote:

I'm getting a "Specified cast is not valid" error that does not point
to the line with the code in error, but instead :An unhandled exception
was generated during the execution of the current web request.
Information regarding the origin and location of the exception can be
identified using the exception stack trace below.

The stack trace is just a lot of system class stuff with no real
explanation of where the error is. Wondering the best way to decipher a
stack trace in such a case.
thanks
.NetSports

[.Net Sports]

[InvalidCastException: Specified cast is not valid.]
TotalsProject.TotalsResult.dg1_ItemDataBound(Objec t sender,
DataGridItemEventArgs e)
System.Web.UI.WebControls.DataGridItemEventHandler .Invoke(Object
sender, DataGridItemEventArgs e) +0
System.Web.UI.WebControls.DataGrid.OnItemDataBound (DataGridItemEventArgs
e) System.Web.UI.WebControls.DataGrid.CreateItem(Int3 2 itemIndex, Int32
dataSourceIndex, ListItemType itemType, Boolean dataBind, Object
dataItem, DataGridColumn[] columns, TableRowCollection rows,
PagedDataSource pagedDataSource)
System.Web.UI.WebControls.DataGrid.CreateControlHi erarchy(Boolean
useDataSource)
System.Web.UI.WebControls.BaseDataList.OnDataBindi ng(EventArgs e)
System.Web.UI.WebControls.BaseDataList.DataBind()
TotalsProject.TotalsResult.Page_Load(Object sender, EventArgs e)
System.Web.UI.Control.OnLoad(EventArgs e)
System.Web.UI.Control.LoadRecursive()
System.Web.UI.Page.ProcessRequestMain()
whereas TotalsProject is project name, TotalsResult is the aspx
script/page, dg1 is the datagrid ID.
Thanks
NetSports

[Jeff Barnes]

The stack trace indicates that the error is occurring in
dg1_ItemDataBound. Set a breakpoint in that method and step through it.
You should be able to determine where the invalid cast is occurring.

I hope this helps.

Regards,

Jeff Barnes
Microsoft Certified Application Developer

..Net Sports wrote:

[InvalidCastException: Specified cast is not valid.]
TotalsProject.TotalsResult.dg1_ItemDataBound(Objec t sender,
DataGridItemEventArgs e)
System.Web.UI.WebControls.DataGridItemEventHandler .Invoke(Object
sender, DataGridItemEventArgs e) +0
System.Web.UI.WebControls.DataGrid.OnItemDataBound (DataGridItemEventArgs
e) System.Web.UI.WebControls.DataGrid.CreateItem(Int3 2 itemIndex, Int32
dataSourceIndex, ListItemType itemType, Boolean dataBind, Object
dataItem, DataGridColumn[] columns, TableRowCollection rows,
PagedDataSource pagedDataSource)
System.Web.UI.WebControls.DataGrid.CreateControlHi erarchy(Boolean
useDataSource)
System.Web.UI.WebControls.BaseDataList.OnDataBindi ng(EventArgs e)
System.Web.UI.WebControls.BaseDataList.DataBind()
TotalsProject.TotalsResult.Page_Load(Object sender, EventArgs e)
System.Web.UI.Control.OnLoad(EventArgs e)
System.Web.UI.Control.LoadRecursive()
System.Web.UI.Page.ProcessRequestMain()
whereas TotalsProject is project name, TotalsResult is the aspx
script/page, dg1 is the datagrid ID.
Thanks
NetSports

[.Net Sports]

I put a breakpoint there, but I can't find where a break window for
debugger is. The only choices for Stepping is Step In and Step over,
which does nothing to show me what line the error is.
?????
NetSports