Searching By A Date Field

Mar 10, 2005

I'm using the .NET Framework 1.1 together with SQL Server 2005 Beta.





I have a search page where you can search a db using a number of fields or combination thereof. Three are text fields (patient id, surname, forename) and I can do any search using one criteria or any combination without any problem.





However, I'd also like to search on a dob (datetime field in SQL Server) and I'm having real problems in making this work. The dates are stored in the following way in SQL Server: '1938-05-31 00:00:00.000', whilst they are displayed as 'dd/mm/yyyy' on a web page, which I guess corresponds to my regional settings.





My code is shown below. I 've tried any number of combinations for the dob string with no success. I do not get any error, just no records are returned.





Does anyone have any idea what I'm doing wrong and how to correct it before this drives me crazy?!








TIA for any help.





P.S. chxPatID, chxSurname etc are all checkboxes.











<code starts>





If chxPatID.Checked Then


strSQL = strSQL & " patid= '" & txtPatID.Text & "' "


strAND = " AND "


End If





If chxSurname.Checked Then


strSQL = strSQL & strAND & " surname ='" & txtSurname.Text & "' "


strAND = " AND "


End If





If chxForename.Checked Then


strSQL = strSQL & strAND & " forename='" & txtForename.Text & "' "


strAND = " AND "


End If





If chxDoB.Checked Then


strSQL = strSQL & strAND & " dob= " & CDate(Year(txtDoB.Text) & "-" & Month(txtDoB.Text) & "-" & Day(txtDoB.Text)) & ""


End If





</code ends>

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