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See more: Access VB.NET
Dim RouteID As String
 
 Dim Response As Integer
        RouteID = InputBox("Enter the Route ID of the record to be deleted ")
       
 
        
        If RouteID <> And Not Regex.IsMatch(RouteID, "[a-z]") Then
            ' Displays a message box with the yes and no options.

            Response = MsgBox(Prompt:="NOTE: Are you sure ?" & vbCrLf & "Deleting this record will erase data from database", Buttons:=vbYesNo)
 
            ' If statement to check if the yes button was selected.
            If Response = vbYes Then
                con = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Documents and Settings\jai shri krishna\My Documents\Busmanagement.mdb")
                con.Open()
 

                str = "DELETE FROM RouteDetails WHERE RouteID = '" + RouteID + "'"
 
                cmdDelete = New OleDbCommand(str, con)
                cmdDelete.ExecuteNonQuery()' getting error datatype mismatch in criteria expression 
                cmdDelete.Dispose()
                MsgBox("Record Deleted")
Posted 12-Apr-13 12:01pm
Edited 12-Apr-13 12:02pm
v2
Comments
richcb at 12-Apr-13 17:03pm
   
You probably want RouteID to be an int. Then remove the ' ' from your Delete statement that surrounds the RouteID in your Where clause.
Polarfuze at 12-Apr-13 18:35pm
   
Thank you that helped
richcb at 15-Apr-13 13:55pm
   
You are welcome.

1 solution

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Solution 1

If ID is numeric value (not text), use

str = "DELETE FROM RouteDetails WHERE RouteID = " & RouteID 

To concatenate strings in VB.NET use "&" instead of "+"
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