Sample code code to illustrate how to call MakeValid

MakeValidCall.cs

/*
SQL code for SQL Server from 
https://stackoverflow.com/questions/66496778/sql-statement-including-makevalid-crushing-the-server
*/
/*
C# version using SqlGeography instead of SqlGeometry
Requires the Microsoft.SqlServer.Types assembly
Install-Package Microsoft.SqlServer.Types -Version 14.0.1016.290
*/
void MakeValidCall()
{
    // Sample set of lines that were generated from GPS data
    var wkt = "MULTILINESTRING ((-78.063088844296 39.0923128276227, -78.0629933704493 39.0924209049056, -78.0628537704575 39.0925804994165, -78.0626985415764 39.0927655959674, -78.0625776031863 39.0929093443343, -78.0624772451994 39.0930271271681, -78.0624404735616 39.093069429965, -78.06242230244 39.0931060149791, -78.062417726422 39.0931460260255, -78.0624230534316 39.0931855915373, -78.0624414338606 39.0932160425133, -78.0624617321928 39.0932363736011, -78.0624857549401 39.0932547887746, -78.0625955308645 39.0933174085555, -78.0628091268828 39.0934413211804, -78.0623615448858 39.0939008841112, -78.0618945628718 39.0943812788732, -78.0621603492116 39.094522628407, -78.0625166974101 39.0947133754383, -78.0627689030194 39.0948489021124, -78.0630246488892 39.0949866567258, -78.0632038915344 39.0950820335129, -78.0632954936423 39.095126900709, -78.0633505648608 39.0951567951925, -78.0635673364237 39.0952755726356, -78.063682189626 39.0953377527927), (-78.0636821896416 39.0953377528011, 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    // Using SqlGeometry instead of SqlGeography will cause MakeValid() to fail
    var g =
        Microsoft.SqlServer.Types.SqlGeography.STGeomFromText(
            new System.Data.SqlTypes.SqlChars(wkt), 4326);

    // Next line will return false
    Console.WriteLine($"Before MakeValid(), IsValid: {g.STIsValid()}");

    // The equivalent SqlGeometry call with SQL server would crash the SQL Server connection after 3 minutes
    // The instance "f" will be valid
    var f = g.MakeValid();

    // Next line will return true
    Console.WriteLine($"After MakeValid(), IsValid: {f.STIsValid()}");
}