I have the following code inside my asp.net application:
if (i["ProjectDescription"] != null && properties.ItemEventProperties.AfterProperties["ProjectDescription"] != null && (Regex.Replace(i["ProjectDescription"].ToString(), "<.*?>", String.Empty) != Regex.Replace(properties.ItemEventProperties.AfterProperties["ProjectDescription"].ToString(), "<.*?>", String.Empty)))
{
var g = Regex.Replace(i["ProjectDescription"].ToString(), "<.*?>", String.Empty);
var gg = Regex.Replace(properties.ItemEventProperties.AfterProperties["ProjectDescription"].ToString(), "<.*?>", String.Empty);
}
now the properties.ItemEventProperties.AfterProperties["ProjectDescription"] =
<div class=\"ExternalClassB4424BCE886A43C980835358CB67D0E8\"><p>This project will be to update Win Server 2008 or older server OS to Win Server 2016.q123<br><br></p><p>It will exclude Win Server 2012. </p><p>Check attached spreadsheet in draft for list of servers and check the POF </p><p>Licenses:</p><p>Tere will  be a total of 9 Server VMs upgraded on-premises that require Win Server Licenses. <br></p><p>There are also 2 existing VMs running on Win Server 2012.<br></p><p>This will require 6 x (16 cores licenses x 3 hosts) ---> Total 18 x 16 cores Win Standard License<br>already have 5 x 16 cores Win Standard licenses</p><p>We will need to quote and order for additional 13 x  Win Server Standard16 cores licenses<br></p><p>The VM's running on Cloud will be licensed through monthly hosting costs</p><p><strong>Cost Summary:</strong><br>Licenses - £12,612.60<br>Engineer Resources - £7,880.00<br></p></div>
the i["ProjectDescription"]=
<div class=\"ExternalClassB4424BCE886A43C980835358CB67D0E8\"><p>This project will be to update Win Server 2008 or older server OS to Win Server 2016.q123<br><br></p><p>It will exclude Win Server 2012. </p><p>Check attached spreadsheet in draft for list of servers and check the POF </p><p>Licenses:</p><p>Tere will  be a total of 9 Server VMs upgraded on-premises that require Win Server Licenses. <br></p><p>There are also 2 existing VMs running on Win Server 2012.<br></p><p>This will require 6 x (16 cores licenses x 3 hosts) ---> Total 18 x 16 cores Win Standard License<br>already have 5 x 16 cores Win Standard licenses</p><p>We will need to quote and order for additional 13 x  Win Server Standard16 cores licenses<br></p><p>The VM's running on Cloud will be licensed through monthly hosting costs</p><p><strong>Cost Summary:</strong><br>Licenses - £12,612.60<br>Engineer Resources - £7,880.00<br></p></div>
also the result for the Regex will retrun the following:-
This project will be to update Win Server 2008 or older server OS to Win Server 2016.q123It will exclude Win Server 2012. Check attached spreadsheet in draft for list of servers and check the POF Licenses:Tere will  be a total of 9 Server VMs upgraded on-premises that require Win Server Licenses. There are also 2 existing VMs running on Win Server 2012.This will require 6 x (16 cores licenses x 3 hosts) ---> Total 18 x 16 cores Win Standard License already have 5 x 16 cores Win Standard licensesWe will need to quote and order for additional 13 x  Win Server Standard16 cores licensesThe VM's running on Cloud will be licensed through monthly hosting costsCost Summary:Licenses - £12,612.60Engineer Resources - £7,880.00
but the above string comparison will return true, althought the 2 string are the same. so can anyone advice?
The strings aren't the same. The word ---- is missing in the first string but present in the second (I removed the word as requested by OP as it was an actual username).
properties.ItemEventProperties.AfterProperties["ProjectDescription"]:
...Total 18 x 16 cores Win Standard License<br>already have 5 x 16 cores Win Standard licenses</p>...
i["ProjectDescription"]:
...Total 18 x 16 cores Win Standard License<br>----already have 5 x 16 cores Win Standard licenses</p>...
And as MindSwipe said in a comment, there are differences around 2016.q123<br><br></p><p>It, as there seem to be non printing characters there.