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If the latter, then you need to revise the criterion to use Like, after all.ĭirk Goldgar, MS Access MVP 2001-2015 Access tips: eliminate side effects such as network latency and bandwidth fluctuations, concurrent server load, and database and operating system caching, I use a copy of the Northwind sample database on my local computer. Incidentally, I took the "Like" operator out of my example criteria, to simplify any confusion over whether it was being used deal with Nulls or whether you really wanted to return all records where IssueNr contained the specified string anywhere within Yes, it's probably possible to write a query that, all by itself, will look at the criteria on frmCri and figure it out, but the query is very unlikely to be at all efficient. ' Open a form to display the results, filtered as specified.ĭoCmd.OpenForm "MyForm", WhereCondition:=strFilter ' Trim off the first " AND ", if present, from the filter string StrFilter = strFilter & " AND Field13 = #" & Format(Me.Field13, "mm\/dd\/yyyy") & "#"
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' Assuming Field13 is a date field, with no time StrFilter = strFilter & " AND IssueNr = '" & Me.IssueNr & "'" If Len(Me.IssueNr & vbNullString) > 0 Then StrFilter = strFilter & " AND Field1 = " & Me.Field1
#Microsoft access criteria code#
For example, you might have code on frmCri along these lines: Or a filter string that includes only the criteria for those form fields that are, and then assign that SQL statement or filter string where it needs to be. The best way to do this sort of thing, in my experience, is not to try to build a query with very complex criteria that can handle all the permutations of the fields on your criteria form, but rather to use code on the criteria form to build an SQL statement Ideally, when my "criteria form" is all blank (Nulls forĪll 13 textboxes including field3 textbox), the recordset should contain all 1485 records. I have tried numerous variations for theįield3 query criteria syntax.
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I'll just change the criteria syntax to: IIf(IsNull(!!),((Is Null) Or (NOT Is Null)),(!!))įrustratingly, this does not work. However, this does not filter based on the value of !! set by the User.
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If I set the criteria for query field3 as (Is Null) OR (Not Is Null), the recordset contains all 1485 records as it should. So unless I can come up with a 'date wildcard', most of what the recordset should be will not be included. I get the results I expectįor field3 (the date field of the table), this syntax will not work: Like IIf(IsNull(!!),"*",("*" & !! & "*")) Access does not like the asterisk wildcard when working with dates!Ĭompounding the problem is that field3 of most of the records is Null. With some syntax changes to allow for data types, this approach works well for 12 of the 13 query fields. If ! is Null, then the query assigns the wildcard '*' - effectively removing this field as a filter element. When the query is executed, it looks to frmCri for the values in the corresponding textbox(es) using this criteria syntax: Like IIf(IsNull(!!),"*",("*" & !! My query contains criteria for all 13 query fields. Issuenr, flag1, etc.] The table fields include data types: text, memo, currency, Y/N, and Date. FrmCri (form) is unbound and has 13 textboxes named to match the 13 fields of a table [ field1,