When setting a form's opacity should I use a decimal or double?

Posted by Eggs McLaren on Stack Overflow See other posts from Stack Overflow or by Eggs McLaren
Published on 2008-07-31T21:42:52Z Indexed on 2010/05/23 10:50 UTC
Read the original article Hit count: 241

Filed under:

c#

|

beginner

I'm new to C#, and I want to use a track-bar to change a form's opacity.

This is my code:

decimal trans = trackBar1.Value / 5000
this.Opacity = trans

When I try to build it, I get this error:

Cannot implicitly convert type 'decimal' to 'double'

I tried making trans a double, but then the control doesn't work. This code worked fine for me in VB.NET.

What do I need to do differently?

© Stack Overflow or respective owner

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More

Related posts about beginner

assembly registers beginner

as seen on Stack Overflow - Search for 'Stack Overflow'
So I've been getting into a bit of assembly lately and I'm a beginner so i was wondering if someone could clarify something. I take it every process has it's own set of registers, and each thread can modify these registers right?. How then do multiple threads use the same registers without causing… >>> More
Beginner learning assembly preserving esp after function calls

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm a beginner learning some assembly, when preserving the ESP register before a function call does it matter if you do it by adding or subtracting? hard to explain, consider the following mov esi, esp sub esp, 12 // on 32bit OS this would mean that there are 3 arguments to the function // push,… >>> More
I am a beginner to C and this is the dumbest question..Confused about getchar() function

as seen on Stack Overflow - Search for 'Stack Overflow'
Sorry if I am not supposed to post beginner level questions here..I am new to this site Please read the code below first I am confused about getchar() 's role in the following code.. I mean I know its helping me see the output window which will only be closed when I press enter key So getchar()… >>> More
Top 10 Reasons SQL Developer is Perfect for Oracle Beginners

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Learning new technologies can be daunting. If you’ve never used a Mac before, you’ll probably be a bit baffled at first. But, you’re probably at least coming from a desktop computing background (Windows), so you common frame of reference. But what if you’re just now learning… >>> More
Would you recommend Head First Programming for someone new?

as seen on Programmers - Search for 'Programmers'
My brother is just starting out college. He's studying the same thing I am here in Bolivia; Systems Engineer which is the equivalent of what a CS degree is in the US. Being his big brother and a programmer myself I really want to guide him and give him the right material to learn and become good… >>> More