)
We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. (Last updated on: June 24, 2019).
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback

How can I add user-defined formulas to an instance of IWorkbook?

Platform: WinForms |
Control: XlsIO |
Published Date: April 30, 2011 |
Last Revised Date: January 22, 2020

In order to make XlsIO to use unknown function we need to register it as custom add-in function and make XlsIO to recognize it. We can do that by using the following code.

C#

//Define Function
IAddInFunctions unknownFunctions = workbook.AddInFunctions;
unknownFunctions.Add( "TEST" );
//Use Function
sheet.Range[ "A1" ].Formula = "TEST(45)";

VB.NET

'Define Function
Dim unknownFunctions As IAddInFunctions = workbook.AddInFunctions
unknownFunctions.Add("TEST")
'Use Function
sheet.Range("A1").Formula = "TEST(45)"

 

2X faster development

The ultimate WinForms UI toolkit to boost your development speed.
ADD COMMENT
You must log in to leave a comment

Please sign in to access our KB

This page will automatically be redirected to the sign-in page in 10 seconds.

Up arrow icon

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon

Live Chat Icon For mobile
Live Chat Icon