Need help with dlookup function. (this is for a stamp collection database).
On my form ("InventoryInput") I have a text box called "Catalog" for a numeric entry and a text combo box for selecting a "Country" in drop down list.
I want to query a table called "CatNameList" to get the "StampName" of the item (based on the entries of Catalog and Country) and populate that name in the text box. The fields in this table are called "StampName", "CatNumb" & "CName" respectively.
I have successfully placed the following expression in the control source of that textbox and able to populate the StampName I need based solely on the catalog number alone.
That express is :
=DLookUp("StampName", "CatNameList", "CatNumb = Form![Catalog]")
So it will populate the "StampName" data to match the "Catalog" number entry just fine.
However, I need to add a second layer to incorporate the Country.
Example : There is a catalog "1" for "USA", and a catalog "1" for "Canada" but both have different "StampName".
I have been attempting to get that second piece added with no success.
Here is the expression I have been trying to get to work :
=DLookUp("StampName", "CatNameList", "[CatNumb] = " & [Catalog] & " And CName = '" & [Country] & "'")
Right now, the text box is just blank with the above expression. I thought it may be because there was no match found, but I have triple checked to ensure I have the spelling correct on the country name in both places.
Basically, I just need the dlookup to take the "catalog" and "country" off the form and match it to the "CatNameList" table fields of "CatNumb" and "CName" to give me "StampName" field back on the form.
Please help!! I have been trying for hours. Is there something else other than the expression I need to check ?
Thanks for any help or guidance.
On my form ("InventoryInput") I have a text box called "Catalog" for a numeric entry and a text combo box for selecting a "Country" in drop down list.
I want to query a table called "CatNameList" to get the "StampName" of the item (based on the entries of Catalog and Country) and populate that name in the text box. The fields in this table are called "StampName", "CatNumb" & "CName" respectively.
I have successfully placed the following expression in the control source of that textbox and able to populate the StampName I need based solely on the catalog number alone.
That express is :
=DLookUp("StampName", "CatNameList", "CatNumb = Form![Catalog]")
So it will populate the "StampName" data to match the "Catalog" number entry just fine.
However, I need to add a second layer to incorporate the Country.
Example : There is a catalog "1" for "USA", and a catalog "1" for "Canada" but both have different "StampName".
I have been attempting to get that second piece added with no success.
Here is the expression I have been trying to get to work :
=DLookUp("StampName", "CatNameList", "[CatNumb] = " & [Catalog] & " And CName = '" & [Country] & "'")
Right now, the text box is just blank with the above expression. I thought it may be because there was no match found, but I have triple checked to ensure I have the spelling correct on the country name in both places.
Basically, I just need the dlookup to take the "catalog" and "country" off the form and match it to the "CatNameList" table fields of "CatNumb" and "CName" to give me "StampName" field back on the form.
Please help!! I have been trying for hours. Is there something else other than the expression I need to check ?
Thanks for any help or guidance.