I think that is the likely cause since the base form is in a different assembly. It would make sense that VS is trying to make sure the image is still available to the child forms in a different assembly by copying the resource into the resx file. I'll try moving the base form into the same assembly to see if it resolves the issue. Thanks.

You might want to verify your requirements first before attempting something like this. For example how many "days" exist between the following periods? How many "hours"?How many "days"? And does the answer change if the time zone does? - July 7, 23:40 to July 8, 00:15 - Dec 31, 23:40 to Jan 1, 00:15 These are often business requirements and depends on what business needs are. As another extreme example if one needs seven "business" days around December 25th then what impacts do holidays and weekends have on what the actual span is.

Thanks BobJanova, this might be all I need.

Thanks again Richard.

:thumbsup: V. (MQOTD Rules and previous Solutions )

I think datasets have a method that's called copy and clone. see here[^] it effectively takes a deep copy of the object. hope this helps. V. (MQOTD Rules and previous Solutions )

You're welcome :)

Hi Bill, There was no fault with the DevExpress grid (which truly is a stunning control and suite). It appears to have been some weird issue with the SQL Server Stored Proc Execution plan. :-D

OK Dave, Thanks for the response. It's not the answer I wanted to hear though :{, I had hoped there was some way. Regards Mark

Thanks Jack, that also worked and never occurred to me. Would it be quicker than the LastIndexOf method though?

you're welcome. :) Luc Pattyn [Forum Guidelines] [My Articles] DISCLAIMER: this message may have been modified by others; it may no longer reflect what I intended, and may contain bad advice; use at your own risk and with extreme care.

Hi Henry - that's the approach I've now gone for... string strFilterString = ""; sp00134BindingSource.Filter = ""; // Clear any Prior Filter // foreach (DataRow dr in this.dataSet_AT.sp00134.Rows) { if (dr.HasErrors) strFilterString += " or ID = '" + dr["ID"].ToString() + "'" ?? String.Empty; } if (strFilterString.Length > 4) strFilterString = strFilterString.Remove(0, 4); // Remove initial " or " clause // if (strFilterString == String.Empty) return; try { sp00134BindingSource.Filter = strFilterString; } catch (Exception Ex) { ..... Thanks for the pointer. :)

Pete O'Hanlon wrote: string.Empty doesn't change the value of the string unless you assign You are absolutely right, and I grovel, lots. :-O I can only blame complete and utter brain failure, brought on by unexpected sunshine. No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced. This message is made of fully recyclable Zeros and Ones

Sounds like a disaster. Why not just have form2 query the same datasource ? Christian Graus Driven to the arms of OSX by Vista. "I am new to programming world. I have been learning c# for about past four weeks. I am quite acquainted with the fundamentals of c#. Now I have to work on a project which converts given flat files to XML using the XML serialization method" - SK64 ( but the forums have stuff like this posted every day )

Perfect - many thanks.

Fair enough - that did the job - I'll try not to be so lazy in future :)