问题
i have a web database and im trying to filter a datasheet, based on the contents of a tempvar. Im trying to use the record source property of the datasheet to do this.
I need to do this because, every employee that logs in should only be able to see a given subset of data in the products table. In the employee table, i have an extra column with a string value which is the data that particular employee should see.
I have a login form that on clicking login, adds this string to the tempvars collection.I can see the tempvar has been added in the immediate window as shown below:
?tempvars!tmpgrpdsc -> "IAMS"
i use the query builder option to complete the record source property as shown below.
The problem is, nothing is returned !
But when i enter the string "IAMS", i get records returned.
However, i have done this with another datasheet and it has worked, the tempvar here held a number ! See below:
What am i missing or is there a better way to filter records based on the login. Thanks
回答1:
What you showed should work.
However, have you tried to change the criteria to ="""" & [Tempvars]![tmpGrdsc] & """"
Also, to make sure that your tempvar is actually containing the data during the query, you could show it as a field, just to check exactly what data is being returned during the query:
SELECT Orders.*,
[Tempvars]![tmpGrdsc] AS TmpGrdsc
FROM Orders
来源：https://stackoverflow.com/questions/27186465/microsoft-access-2010-filtering-data-based-on-tempvar