Hello,
I have project in .Net Framework 4.5 using the latest Service Release of Infragistics WinForms 13.1. I noticed when moving to .Net Framework 4.5 all the grids with summary rows were taking longer to load. I set Visual Studio to break on all exceptions and noticed that every Summary Row Calculation, while returning the correct data, is getting the error listed below:
PerCederberg.Grammatica.Runtime.RE.RegExpException occurred HResult=-2146233088 Message=unsupported escape character: '\p{L}_]+' at position 1 Source=Infragistics4.Win.UltraWinCalcManager.v13.1 StackTrace: at PerCederberg.Grammatica.Runtime.TokenRegExpParser.ReadEscapeChar() InnerException:
I've attached a sample project that recreates the issue. Please advise as some of my forms have many grids with Summary Rows and the performance is now dreadful.
problem now occurs again v15.2 release 15.2.20152.2023, vs2015, .net 4.5
in my code in line
if (ug.DisplayLayout.Bands[0].Columns.Exists(key))
key is "StandardLeadTime", means no special or escape characters.
can you please check?
If the string you are passing in does not include any special escape characters, then clearly whatever you are experiencing is not the same issue. What error message are you getting? Can you post a small sample project demonstrating the issue?