Trying to evaluate a simple Dlookup without success. Mobile Development. How to use Nuget assembly as files with visual studio community. Opening Balance. Follow us! Get the Latest Bytes Updates.
By using this site, you agree to our Privacy Policy and Terms of Use. Dlookup and DAO recordset null value return check questionit MB Dlookup gives an error if the searchkey the field i am looking for is not found in the table. Jul 24 '07 reply ADezii 8, Expert 8TB Dlookup gives an error if the searchkey the field i am looking for is not found in the table.
Help please!!! But at the same time getResult won't be getting any returned value assigned - even its a valid value!!!!! This is the problem. So if you have to do MsgBox getResult later on, you will not see anything on DialogBox Dlookup would still require parameters to be filled in. Anyway, we have to stick with inefficient DLookup Thanks By assigning the variable getResult in the If statement you aren't actually assigning it at all instead you're comparing it. Cancel Changes.
General lancet: a comprehensive, efficient, and reusable util function library of go reply views Thread by lanliddd last post: by. Is Remarks still String or did you change it to Variant as Marcucciboy2 suggested? Find out what DLookup is returning when you get the mismatch error. I changed it to variant because of a previous comment stating that if it returns null then it could not be stored as a string.
It returns Null — RenMcD. The return value is Null — RenMcD. Show 2 more comments. HansUp Marcucciboy2 Marcucciboy2 3, 3 3 gold badges 16 16 silver badges 33 33 bronze badges. That makes sense. Unfortunately, I am still receiving error 13 with regards to my DLookUp function. The 'And' is used to look up both criteria not just one. If you are not familiar with DLookUp do you have another suggestion? Sign up or log in Sign up using Google. Sign up using Facebook. Note: This article doesn't apply to Access web apps.
You can use the DLookup function to display the value of a field that isn't in the record source for your form or report. For example, suppose you have a form based on an Order Details table. However, the ProductName field is in another table, the Products table.
You could use the DLookup function in a calculated control to display the ProductName on the same form. DLookup expr, domain [ , criteria ]. An expression that identifies the field whose value you want to return. It can be a string expression identifying a field in a table or query, or it can be an expression that performs a calculation on data in that field. In expr , you can include the name of a field in a table, a control on a form, a constant, or a function.
If expr includes a function, it can be either built-in or user-defined, but not another domain aggregate or SQL aggregate function. A string expression identifying the set of records that constitutes the domain.
It can be a table name or a query name for a query that does not require a parameter. A string expression used to restrict the range of data on which the DLookup function is performed. If criteria is omitted, the DLookup function evaluates expr against the entire domain.
Any field that is included in criteria must also be a field in domain ; otherwise, the DLookup function returns a Null. The DLookup function returns a single field value based on the information specified in criteria.
Awesome, your suggestion worked. I guess I always assumed that if you didn't explicitly define Dim a variable in VB, it would be implicitly defined at compile-time as type Variant.
I was wrong. Actually that should be true according to VBA help, but personally I always declare them explicitly. Poppa Smurf Registered User. Local time Today, Joined Mar 21, Messages End If. Fuse3k Registered User. Local time Today, Joined Oct 24, Messages You can also use the nz function. Nz replaces a null value with a specified value. You must log in or register to reply here.
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