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How do I make a textbox that only accepts numbers?
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I am assuming from context and the tags you used that you are writing a .NET C# app. In this case, you can subscribe to the text changed event, and validate each key stroke.
private void textBox1_TextChanged(object sender, EventArgs e)
{
if (System.Text.RegularExpressions.Regex.IsMatch(textBo...
Why do x86-64 systems have only a 48 bit virtual address space?
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lwn.net/SubscriberLink/655437/9a48cd3e7a8cbe8a <-- three years after this reply, we are already hitting these limits :) The HP Machine will have 320TB of memory and they can't provide it as a flat address space because of the...
When should one use a 'www' subdomain?
When browsing through the internet for the last few years, I'm seeing more and more pages getting rid of the 'www' subdomain.
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How do I execute code AFTER a form has loaded?
In .NET, Windows Forms have an event that fires before the Form is loaded (Form.Load), but there is no corresponding event that is fired AFTER the form has loaded. I would like to execute some logic after the form has loaded.
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How does BitLocker affect performance? [closed]
I'm an ASP.NET / C# developer. I use VS2010 all the time. I am thinking of enabling BitLocker on my laptop to protect the contents, but I am concerned about performance degradation. Developers who use IDEs like Visual Studio are working on lots and lots of files at once. More than the usual office w...
Generic TryParse
...er about performance. See: stackoverflow.com/questions/25458/how-costly-is-net-reflection
– Patrick M
Sep 27 '12 at 15:52
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Minimal web server using netcat
I'm trying to set up a minimal web server using netcat (nc). When the browser calls up localhost:1500, for instance, it should show the result of a function ( date in the example below, but eventually it'll be a python or c program that yields some data).
My little netcat web server needs to be a w...
Identity increment is jumping in SQL Server database
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You can find a little more information about this here: http://sqlity.net/en/792/the-gap-in-the-identity-value-sequence/
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Best way to hide a window from the Alt-Tab program switcher?
I've been a .NET developer for several years now and this is still one of those things I don't know how to do properly. It's easy to hide a window from the taskbar via a property in both Windows Forms and WPF, but as far as I can tell, this doesn't guarantee (or necessarily even affect) it being hid...
How do I protect Python code? [closed]
... my family and myself from being murdered by intruders in our sleep?" Internet: "No. Anyone can be gotten to, and no dwelling is ever 100 percent impenetrable. A mortal human family is the wrong tool for the job."
– A Simple Algorithm
Mar 29 '19 at 4:05
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