CultureInfo - C# Discussion Boards

lalit142-Sep-09 21:17

2-Sep-09 21:17

Hello...

I m creating ASP Website in C#.

There is one drop down list and one text box

In drop down list, i have country's name.

Problem:

i just want is that textbox will display the selected item in drop down list.
Suppose if i select INDIA in Drop down list then textbox must display INDIA..

Please Help me out.

Thanks in Advance.

Lalit

Re: Simple Problem but tough for me

stancrm2-Sep-09 21:31

stancrm

2-Sep-09 21:31

In C# WinForm use the event SelectedIndexChanged from ComboBox :

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
  textBox1.Text = comboBox1.Text;
}

But in ASP, ask in ASP.NET forum.

Re: Simple Problem but tough for me

lalit142-Sep-09 22:17

lalit14

2-Sep-09 22:17

I wrote this below code but nothing is working.

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
TextBox1.Text = DropDownList1.Text;
}

Re: Simple Problem but tough for me

lalit142-Sep-09 22:19

lalit14

2-Sep-09 22:19

above code i hav written in default.aspx.cs file

Re: Simple Problem but tough for me

stancrm2-Sep-09 22:25

stancrm

2-Sep-09 22:25

Have you ever used event handler ??

Do this first ...

comboBox1.SelectedIndexChanged += comboBox1_SelectedIndexChanged;

Re: Simple Problem but tough for me

lalit142-Sep-09 23:53

lalit14

2-Sep-09 23:53

Hey thanks ...........

I solved my problem.

Nice site, and nice members too.

Once again Thanks

Re: Simple Problem but tough for me

OriginalGriff2-Sep-09 22:26

OriginalGriff

2-Sep-09 22:26

Yes, but did you hook into the event? Or just write the handler?

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CultureInfo

Rajee Maharjan2-Sep-09 21:12

Rajee Maharjan

2-Sep-09 21:12

Hi,
Please help me who know these answer:

I need to Know the which cultureinfo is used in system.
For example: I need to know my system has which datetime format is used us or uk. To know the datetime format of US or UK. Can any idea in Localization or Globalization

Thanx in advance

Re: CultureInfo

OriginalGriff2-Sep-09 21:19

OriginalGriff

2-Sep-09 21:19

Clickity[^]

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Re: CultureInfo

stancrm2-Sep-09 21:33

stancrm

2-Sep-09 21:33

Application.CurrentCulture

Ask about <> with class name

Anmar-xe2-Sep-09 20:49

Anmar-xe

2-Sep-09 20:49

hi everyone...i have a basic knowledge of asp.net using vb.net and am working now on a project that use c# classes i get to code where i see someting like this Dictionary<string, PageConfig>...so whats that mean

please allow me to be a good programer

Re: Ask about <> with class name

Arun Jacob2-Sep-09 20:55

Arun Jacob

2-Sep-09 20:55

Anmar-xe wrote:
please allow me to be a good programer

MSDN is the best resource for learning this type of things,
http://msdn.microsoft.com/en-us/library/xfhwa508.aspx[^]
Smile | :)

Arun Jacob
http://codepronet.blogspot.com/

Re: Ask about <> with class name

Anmar-xe2-Sep-09 20:57

Anmar-xe

2-Sep-09 20:57

thank you

please allow me to be a good programer

Weird, unexplained occurance...

MarkB7772-Sep-09 20:48

MarkB777

2-Sep-09 20:48

I've been working on a CRS system, and was running into a nasty error...

For some reason every ~16 or so search queries, the program would crash, and give me a WIN32 exception, telling me that my program had used up all its allocated handles.

Ok, so I wasn't disposing of my objects correctly somewhere...

After much searching, I found that the foreach loop that was disposing of the results was not working as expected. (the search results were displayed using Panels).

If I called:

<br />
int i = window.FlowPanel.Controls.Count;<br />

It would return the expected number of (say) 20.

However when I ran:

<br />
foreach (Control c in window.FlowPanel.Controls)<br />
{<br />
    c.Dispose();<br />
}<br />

It would cut out of the foreach loop at the 10th object.

If I ran the same foreach loop directly afterwards, it would cut out at the 5th object etc etc.

I solved the problem by using this snippet:

<br />
while (window.FlowPanel.Controls.Count > 0)<br />
{<br />
foreach (Control c in window.FlowPanel.Controls)<br />
{<br />
    c.Dispose();<br />
}<br />
}<br />
<br />
GC.Collect();<br />

This solved the problem, but can anyone explain this behaviour?

Cheers,

Mark.

Mark Brock
"We're definitely not going to make a G or a PG version of this. It's not PillowfightCraft." -- Chris Metzen

Re: Weird, unexplained occurance...

OriginalGriff2-Sep-09 21:33

OriginalGriff

2-Sep-09 21:33

It's not that unexplained - Think of it this way: If you have a list and you iterate through it, what happens when you delete one of the list entries? What is the next entry for an entry which has been deleted? What happens when the Controls list is traversed by a different process?

Since foreach does effectively that - calls Controls.Next each time round the loop - it is very understandable that at some point you will have a problem. Normally, you would get a "Collection was modified; enumeration operation may not execute" exception, but I guess Dispose doesn't check that!

Use Controls.Remove to take the controls out of the list, then Dispose them. You will need to need to modify the foreach to a for loop (and I suggest iterating backwards from the last to the first, to make it safer.) You will probably find you can rely on the frame work to do the dispose this way.

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Re: Weird, unexplained occurance...

Greg Chelstowski2-Sep-09 21:37

Greg Chelstowski

2-Sep-09 21:37

Damnit, beat me to the punch. Wink | ;)

var question = (_2b || !(_2b));

Re: Weird, unexplained occurance...

MarkB7773-Sep-09 1:13

MarkB777

3-Sep-09 1:13

Thanks!

Mark Brock
"We're definitely not going to make a G or a PG version of this. It's not PillowfightCraft." -- Chris Metzen

Re: Weird, unexplained occurance...

Greg Chelstowski2-Sep-09 21:36

Greg Chelstowski

2-Sep-09 21:36

You're changing the collection you're iterating through--
So the object you started off with at the beginning of the loop is not the same one at the end.
I'm surprised it even let you do that...
a

for(int x=FlowPanel.Controls.Count-1; x>=0; x--)
{
      FlowPanel.Controls(x).Dispose();
}

should do the trick, I think.

var question = (_2b || !(_2b));

Re: Weird, unexplained occurance...

OriginalGriff2-Sep-09 21:40

OriginalGriff

2-Sep-09 21:40

Sorry about beating you to it - it was just luck - but I still think using Remove from the controls list will be a better solution than Dispose!

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Re: Weird, unexplained occurance...

Greg Chelstowski2-Sep-09 21:44

Greg Chelstowski

2-Sep-09 21:44

OriginalGriff wrote:
Remove from the controls list will be a better solution than Dispose!

Agreed, no arguments there. Didn't think it through completely ;>

var question = (_2b || !(_2b));

Re: Weird, unexplained occurance...

MarkB7773-Sep-09 1:14

MarkB777

3-Sep-09 1:14

Thanks!

Mark Brock
"We're definitely not going to make a G or a PG version of this. It's not PillowfightCraft." -- Chris Metzen

dll security

amit_upadhyay2-Sep-09 20:29

amit_upadhyay

2-Sep-09 20:29

hello friends!!
I have made a library for my c# project by combining 3 libraries (using ilmerge).
I wanted to know, is it possible for someone to decompile my new library or view the code?
if yes, how do i protect it?
or is there any other way of merging the library with my project?

Re: dll security

Arun Jacob2-Sep-09 20:37

Arun Jacob

2-Sep-09 20:37

Use Reflector[^] to see the result.
Normally a dll can be protected by Obfuscation.Dotfuscator is a Visual Studio Tool using for obfuscation.
Smile | :)

Arun Jacob
http://codepronet.blogspot.com/

Re: dll security

amit_upadhyay3-Sep-09 6:17

amit_upadhyay

3-Sep-09 6:17

dotfuscator is good but it does not encrypt the code.
also the project shows an error after being linked with the obfuscated library. obviously because it cannot import the namespaces. how do i correct this? do i need to merge my dll with exe?

Re: dll security

Arun Jacob3-Sep-09 18:06

Arun Jacob

3-Sep-09 18:06

I think you are using dotfuscator in the Visual studio project Dlls.Instead of that use it for dll's and exe in the BIN folder.ie,in the output directory not in the Visual Studio project.
While using dotfuscator browse all of your dlls and also your exe from your build output directory.Otherwise this dll won't work with that exe because of the change in method names and private variable names.
Smile | :)

Arun Jacob
http://codepronet.blogspot.com/

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