Comments by Rob Grainger (Top 41 by date)

There's not really enough information here to answer correctly. Most importantly...

Which version of VB are you using?

It looks to me like you may be missing a reference, but without knowing more its impossible to know.

Ideally, include a snippet of code to highlight where the error occurs.

That's really two questions, and should be posted as such, to allow someone to answer one when they have no contribution to make on the other.

With relation to the second, try this: Tutorials

That's way beyond the scope here. Way, way, way beyond the scope. There are entire books on the subject. Searching for "Parser" on Wikipedia may help. Or indeed "Parser" in Google (you evidently didn't try very hard).

But, if you're trying to go from a grammar to random statements, that's more generative use of a grammar. An entirely different subject. Search for "Generative Grammar".

Be prepared to spend a month or so reading ;-)

Have you tried tracing this through in the debugger? The error you're receiving seems entirely unrelated to the code you've posted.

Specifically, it looks like some malformed content in DashboardEmployeeOpt2.aspx - ASP.NET is trying to parse this and finding nothing.

We'd need to see how you've set up ComPort, and that port_DataReceived_1 is correctly bound to handle that to answer this. You'll need to provide more context.

As there's only one line there actually doing I/O, I think we can guess the line.
The rest of the comment applies fully though!

DirectSound isn't the way to go here - it's deprecated.

Microsoft Media Foundation is the preferred technology for digital media nowadays. However describing this in details is a tall order. Check the following: http://msdn.microsoft.com/en-us/library/ms694197(v=vs.85).aspx

If a lower-level of control is required, then the Core Audio APIs can be used (http://msdn.microsoft.com/en-us/library/dd370802(v=vs.85).aspx). Using DirectSound will route through this layer anyway. Particularly the info on Audio Sessions may prove relevant: http://msdn.microsoft.com/en-us/library/dd370796(v=vs.85).aspx

Hopefully this will prove very hard, the number of potential malicious uses of such a facility are astronomical.

Of course you could use a smart pointer...

std::auto_ptr<int> a(new int[20]);

Which will automatically delete the memory when the variable 'a' goes out of scope. But really that's still calling delete[] under the covers.

Note - you need to use delete[] rather than delete to free an array.

Without seeing the server code that attempts to register the class object, it is impossible to know what is happening here.

Don't really see why this is tagged as C++ or C#, as you're really asking about VB.NET.

For future reference, use the "code" button above the editor panel when submitting code - makes it much easier for respondents to read, and spot your problem.

You *can* use ActiveX to write a C++ component that can be accessed in the browser. I really wouldn't recommend it though, almost everyone disables such controls from running in the browser, and with very good reasons as it was the main attack vector on machines for quite some time (and indeed, still is through the Flash and Java plug-ins).

This isn't a C# question. Its a Crystal Reports question.

Reason for my vote of 2 \n That's not really an article - just a code snippet. No discussion of how result columns match to object fields.

Looks like a simple copy/paste from MSDN

I don't think there is a simple way. It may be possible using reflection, but even then not guaranteed - not every property is a simple field-accessor. Not every field name matches the property name.
It might be possible be examining the emitted IL and looking for an instruction reading the property, but I suspect that's an overkill, and even then non necessarily reliable.

There is a quick overview of data normalisation : here that should help.

It shows a simple example that should help you grasp the basics.

You'll need to provide more information. Which platform are you running on (Operating System, Web Server (if applicable), XSLT processor, ...).

Calling custom functions varies drastically between implementations.

That looks nothing like SQL to me, PHP possibly?

You are welcome.

It is worth remembering how to do this in SQL too (USE db_name), as that will allow you to save a query as a .sql file, open it and run it (or run it from the command line using sqlcmd.exe) without having to remember to set the database using the drop down.

In SQL Server Management studio, the drop down (combo) usually appears in the toolbar right above the Object Explorer. Its possible you have the toolbar hidden, as Katsune said it is on the SQL Editor toolbar. This can be displayed either by right-clicking on an existing toolbar or from the Toolbars submenu on the View menu. However, the toolbar is usually displayed by default whenever a query is open - I'm surprised it isn't visible. On my installation it is right next to the Execute button on the toolbar.

Sorry it seems I misunderstood your question. From your questions and comments above I'm still unsure exactly what you're asking for.

1. What is the value of ipBO at that stage?
2. You can use typeof(decimal) in place of System.Type.GetType("System.Decimal") (for future reference).
3. Through DataRowExtensions you can use the Field method for strongly-typed access:
Similarly, use SetField to write to the other field:

double zVal = row.Field<double>("Z2_BC");
dr.SetField<decimal>("RotatedX^2", (decimal)rotatedXS);

Note that I made the cast explicit here. I have a suspicion that the row's Item property (used to write in your example) may be failing to do the conversion from double to decimal.
4. Add a check to see if rotatedY, rotatedX or rotatedXS are INF or NaN
<pre lang="c#">if (rotatedY.IsNan() || rotatedY.IsInfinity() ) { /* ... */ }</pre>
5. You could a breakpoint at the third line of the foreach statement, (press F9 when the line is selected), then use F5 to run to that point.
In the Auto window, you can inspect the values - are any of them INF, NaN or zero at this point? If so you're failing to read the data for some reason.
6. It looks like you're using a parameterised query or procedure to initialise the data table. Have you checked that this works independently of the code to read the data? (Sorry if its obvious - just trying to cover all bases here).

Keep me posted - I'll give it more thought and see if I see anything else I'm missing.

Sorry, there isn't enough context to solve this.

1. Add line numbers to example - we cannot correlate the error messages with the lines.
2. Is this file "Service.cs" in the path listed?
3. Where is distinctItem defined?
4. Where is globalTablesList defined?

It looks to be like "distinctItem" is not a valid collection type - as such it cannot be enumerated for items (which is what the 'in' operator does.

I maintain that this was a solution to the original question - I even checked for support on SQL Server 2008 before submitting!

We'll need more context to solve this, can you show us the .aspx containing your data grid.

It's probably just a matter of adding a runat='server' attribute to one of your tags, unfortunately the name we see (MainContent_dglist_ctl00_0) is generated by ASP.NET, so without seeing the aspx file its hard to tell where. Maybe someone else knows more about the structure of the auto-generated names.

I concur with Zoltan here, its beyond the scope of a simple answer, the tutorial he pointed to will provide a good basic understanding.

If I get time I'll download and have a look at the weekend.

Try running the program in a debugger - it should break when the error occurs and have the offending line highlighted. If you post the function containing that line, someone may be able to help.

It sounds to me like you're attempting to use a third party component, but are missing a reference to the DLL needed.

Hopefully you can find an example project, look under the References for that project in VisualStudio. Then find the DLL that you're missing and add it to the project you're working on.

Short of that, you'll need to indicate where you found the code you're trying to adapt, as there's not enough info here for more specific instructions.

This seems to be totally invalid C# code. For example "public void Generator_Maze(Map map), Player player1)" has an extra parameter outside the original parentheses ('(', ')'). A C# compiler will choke loudly at these.

This really makes no sense at all, there's some fragments of SQL and no diagnostic.

Please resubmit with more information!

Unless the DB can be accessed by more than one system.

Can you post the code you're using, or if not something representative?

I'd try and rephrase the question, maybe with code to illustrate - it really doesn't make much sense I'm afraid.