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07/23/2006 at 10:54PM PDT, ID: 21929181
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8.4

Data type mismatch error when updating a record in a Access Database

Asked by xfungalx in Programming for ASP.NET

Tags: criteria, data, mismatch, type

Hello experts

I am creating a website using VWD and an Access database.  I am having a problem when attempting to update a record in my database.  

The error I am getting is:

"Data type mismatch in criteria expression."

The error is thrown at this line of code:

da1.Update(ds1)

I've added some message boxes to show the current dataset value and it is updating correctly, however when it trys to update the actual database it dies.

Here is the code.

        Dim ds1 As New Data.DataSet()
        Dim SQL1 As String = "SELECT Week1.[1], Week1.ID FROM Week1 WHERE (((Week1.Username)=" & """" & Username & """" & "));"
        Dim da1 As New Data.OleDb.OleDbDataAdapter(SQL1, conn)
        da1.Fill(ds1)
        Dim cb1 As New Data.OleDb.OleDbCommandBuilder(da1)

        'For debugging purposes
        MsgBox("The dataset is currently: " & ds1.Tables(0).Rows(0)("1"))  <---- Shows the dataset before making the change

        ds1.Tables(0).Rows(0)("1") = Game1

        'For debugging purposes
        MsgBox("The dataset is now: " & ds1.Tables(0).Rows(0)("1"))  <---- the dataset updates correctly

        da1.Update(ds1)   <---- here is where the error is thrown

Ive spent four hours trying to figure this out!  Please help!
[+][-]07/24/06 12:31 AM, ID: 17165904

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[+][-]07/24/06 04:26 AM, ID: 17166797

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[+][-]07/24/06 06:40 AM, ID: 17167540

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[+][-]07/24/06 07:11 AM, ID: 17167851

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About this solution

Zone: Programming for ASP.NET
Tags: criteria, data, mismatch, type
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Solution Provided By: graye
Participating Experts: 4
Solution Grade: A
 
 
[+][-]07/24/06 07:47 AM, ID: 17168206

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