How to reference a range of cells in UDF

c#, ExcelDNA, in my UDF, I want to pass a range of cells, MyUDF(A1:A2)

I tried MyUDF(object param1), if I type in myUDF(A1:A2), the MyUDF is never called I also tried MyUDF(string param1), MyUDF(string[] param1) neither works.

What type of the parameter should be? thanks


The format public static object MyUDF(object param1) {...} should work fine, and your formula with =MyUDF(A1:A2) will pass in an object array with the values in those cells.

If you want to allow the argument to be a reference to the passed in range, you'd declare it as

public static object MyUDF(
    [ExcelArgument(AllowReference=true)] object param1) {...}

The extra attribute tells Excel to pass in the actual reference when called as =MyUDF(A1:A2) - the reference will be of type ExcelDna.Integration.ExcelReference, from where you can get the values or make further calls to the Excel API to get the address or anything.

Need Your Help

Uncaught Unknown cloud_name

ruby-on-rails backbone.js cloudinary

I'm trying to implement Cloudinary into my Backbone Marionette Rails app. I'm able to upload and display images just fine in one view. However in a second view, the images only display if I've first