Copy Object Types In VB.NET?
Jul 29, 2010
I am building an ASP.NET application that needs dynamic tables. That's another issue that I've already posted about (and gotten a pretty good response!). Now, I'm running into another issue - I want to add new rows to my table, but given that I will have 10-12 tables on one page, each containing different objects in their rows (text boxes, check boxes, etc.) I need a way of simply generically adding a new row that has the same objects as the first row in the table. Here's my code:
Private Sub AddTableRow(ByRef originalTable As System.Web.UI.WebControls.Table)
Dim originalRow As System.Web.UI.WebControls.TableRow = originalTable.Rows(1)
Dim insertingRow As New System.Web.UI.WebControls.TableRow
Dim insertingCells(originalRow.Cells.Count) As System.Web.UI.WebControls.TableCell
Dim index As Integer = 0
[code]....
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here's my code...
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Case "System.Int32"
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Oct 31, 2010
here's my error...
Exception Details: System.InvalidCastException: Object cannot be cast from DBNull to other types.
here's my code.
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the problem is the query output is null but i convert.todouble so got an error... what is the best solution if the record is null?
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[Code]....
My ClassB definition is as follows:
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...
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Object cannot be cast from DBNull to other types. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidCastException: Object cannot be cast from DBNull to other types. Source Error:
[Code]....
Line 292:
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Line 296:
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[Code]....
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