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Editorial Team
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Asked: 2026-05-26T23:10:00+00:00

I’m trying to insert records into a table via a sql management studio and

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I’m trying to insert records into a table via a sql management studio and insert command verses the website’s web form. 

INSERT INTO [dbo].[Records] ([tp_ID], [Offense_ID], [LLO_ID], [LLLA], [SSN], [LastName], [FirstName], [MI], [Title], [Grade], [Organization], [BranchOfService],  [Category], [DateCategory],  [IsHoldover], [IsHoldoverDate])
VALUES (60033, N'E', 17, NULL, N'222-12-0222', N'SINGER', N'Te ', N'Y', NULL, N'SrA', N'703 Airbase', N'FORCE', NULL, NULL)

Although when I go to the website and try to view the record I recieve the following error message:

System.InvalidCastException: Conversion from type ‘DBNull’ to type ‘Integer’ is not valid.

Line 349:ckIsHoldOver.Checked = (CInt(rdr("IsHoldover")) = -1)

—vb in the code behind that caputures the field data if i create a record through the web form—

 .Parameters.AddWithValue("@IsHoldover", ckIsHoldOver.Checked)
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1 Answer

  1. Editorial Team

    rdr("IsHoldover") is NULL, therefore when converting to integer using CInt(), this is causing an exception.

    You can either change your INSERT statement to insert a Non-NULL bit value (1 or 0), or change your VB code to take into account this nullable field:

    If Not IsDBNULL(rdr("IsHolderover")) Then ckIsHoldOver.Checked = (CInt(rdr("IsHoldover")) = -1)
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