The error message is telling you that there is no such thing as a control called xrlabel12 as you have in your script

If you click on that field in your report template where you are using this script, what is its (Name) property?

The report template you attached when I click on that control field shows that field as called label12 , not xrLabel12, so you would need to edit your script so that it is calling that control field label12 

Note that case is sensitive as well as the exact spelling, so you can not call Label12 (with a capital L) neither - it must be the exact name of that control as per its property.

Your script should be :

label12.Text = string.Format("{0} , {1} {2}", DetailReport.GetCurrentColumnValue("LT_Address_Label_City"), DetailReport.GetCurrentColumnValue("LT_Address_Label_StateProv"), DetailReport.GetCurrentColumnValue("LT_Address_Label_Postal"));

And then it will work.

Just in case this comes up if a combined script is used elsewhere on the report template, you do have the correct name of the band being referred to (DetailReport) so that too is also correct, but if the control field was in a detail band for another dataset, you would need to edit the script so that you are getting the current column value from the dataset it is from. For example, if the control field was actually in the detail band of the DetailReportItem, your script would instead have ... DetailReportItem.GetCurrentColumnValue("LT_Address_Label_City"),  ....etc)

Do note that due to the holiday, support is now closed for the weekend, returning Tuesday as per http://forum.ayanova.com/Topic4830-62-1.aspx

- Joyce

AyaNova Sales & Technical Support

http://www.ayanova.com