Best Of

I'm seeing another strange behavior that seems independent from other stuff I've found today. It seems that the mere presence of a breakpoint on a line can affect the computation.

I'm using Linqpad 6.5.5 x64

.NET Core version (host): 3.0.0
.NET Core version (queries): 3.0.0
Roslyn Version: 3.3.1-beta4-19462-11
FSharp.Compiler.Service version: 32.0.0.0

Here's the reproduction.

1. Create a C# statements script

Console.WriteLine(Math.Sqrt(1));
Console.WriteLine(Math.Sqrt(1)); // breakpoint
Console.WriteLine(Math.Sqrt(1));
Console.WriteLine(Math.Sqrt(4));
Console.WriteLine(Math.Sqrt(4)); // breakpoint 
Console.WriteLine(Math.Sqrt(4));
Console.WriteLine(Math.Sqrt(9));
Console.WriteLine(Math.Sqrt(9)); // breakpoint
Console.WriteLine(Math.Sqrt(9));

2. Set breakpoints on the appropriate lines.
3. Ensure compiler optimizations are turned off.
4. Execute the script.
5. For each breakpoint, just continue the script.

The final output (on my machine) is

1
1.0000000000000278
1
2
2.0000000000000555
2
3
3.000000000000074
3

Sorry, it's my fault😭

The MetaModel Mapping should give you the information.
For example, the following should dump out some info on all the columns on all the tables.

foreach(var table in Mapping.GetTables())
{
(
from dm in table.RowType.DataMembers
where dm.DbType != null
select new { dm.Name , dm.DbType , dm.Type , dm.MappedName, dm.IsPrimaryKey }
)
.Dump(table.TableName);
}

Hi,
let me introduce my new CSV data context dynamic driver.

Features:
- create new data context from CSV files, one table per file
- automatic relations detection
More info and download here:
https://github.com/dobrou/CsvLINQPadDriver

Any comments and suggestions are welcome.

Happy CSV querying

I have been playing around with .net 5.0 pre-release. I use Linqpad to debug and check linq-to-entities queries. Hiterto this has involved setting up a data connection by referencing the binaries in the appropriate build directory for the solution. The .net 5.0 framework does not appear to have a build directory, or any .dll or .exe files within the solution.

Is it going to be possible to use Linq-pad with .net 5.0 (vNext), and if so what steps need to be taken?

This is part question (is this possible and how) and partly to make people aware of an upcoming issue as .net 5.0 moves to release version

I am wondering if Linqpad is able to connect and make queries against WCF RIA Services ?

Hi All,

Just had a strange one, not sure how to reproduce but basically I ran a 'SQL' query in one tab, changed back to a 'C# Expression' in another tab to run it and the Language dropdown had changed from the usual options to showing actual language options e.g. English (United States).



Not a big deal, just closed it and reopened it and all was good.

Thanks.

Your book is not thread safe. I had to pause the worker thread that was reading the book and start a new one to read the "read this first" in the samples. You could say I was having a thread lock, or something . . .