I found the solution. The problem was in three lines
of three codes in the attached spreadsheet. Thanks!

Hi, Villeroy!
I only know the "Dialog" in Basic-Calc that reminds me of the "UserForm" in VBA-Excel.

Hi, Zizi64!
I posted the custom function code "Bt_Ok ()" in the previous attachment.

Hello, Everyone! Why doesn't the following code work on the attached template sheet? template sheet.ods Sub ReadNSaveDialog1 () cxtx_TextField1 = oDialog1.GetControl("cxtx_TextField1") cxcb_ComboBox1 = oDialog1.GetControl("cxcb_ComboBox1") cpdt_cpdt_DateField1 = oDialog1.GetCont...