Re: [Urgent] How to detect a timezone observes DST time or not - C# Discussion Boards

Re: [Urgent] How to detect a timezone observes DST time or not

11-Jul-09 23:29

Hi bros,
Is there any way in C# (C/C++) to detect a timezone observes DST time or not.
For example: with timezone GMT+7, it does not observe DST; timezone GMT-6 observes DST time.
Anyone knows please help me.
Many thanks,
SA.

OriginalGriff12-Jul-09 0:12

OriginalGriff

12-Jul-09 0:12

Try MSDN for TimeZoneInfo.IsDaylightSavingTime

If the time zone represented by the TimeZoneInfo object does not support daylight saving time, the method always returns false.

You may have to jigger with it to check a date / time combo that would be in DST if the time zone did support it.

No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.

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Re: [Urgent] How to detect a timezone observes DST time or not

senorAli3312-Jul-09 0:29

Re: [Urgent] How to detect a timezone observes DST time or not

12-Jul-09 0:29

Thanks for your answer.
I've had a look at TimeZoneInfo but is only for Microsoft Visual Studio 2008/.NET Framework 3.5 or higher. My current application is in Microsoft Visual Studio 2005/.NET Framework 2.0. It's my pain Frown | :(

. I'm sorry not include the version of .Net framework in my question
Is there any other way?.

dan!sh 12-Jul-09 0:54

Re: [Urgent] How to detect a timezone observes DST time or not

12-Jul-09 0:54

TimeZone class has the same method for .Net 2.0

senorAli3312-Jul-09 2:43

Re: [Urgent] How to detect a timezone observes DST time or not

12-Jul-09 2:43

To d@nish: Please have a look at http://msdn.microsoft.com/en-us/library/system.timezoneinfo.aspx[^]
.Net 2.0 does not have timezoneinfo class.

dan!sh 12-Jul-09 2:50

Re: [Urgent] How to detect a timezone observes DST time or not

12-Jul-09 2:50

I was speaking of this[^] class and method. It is there in .Net 2.0.

senorAli3312-Jul-09 3:08

How to set title for fixed rows in DataGridView object?

12-Jul-09 3:08

Thanks for your answer, but the method IsDaylightSavingTime is only used to indicate whether the specified date and time is within a daylight saving time period or not. It does not tell me the current timezone observes DST or not.
I want to find a way to indicate if a timezone observes DST or not. If it does then I will use the method indicating whether the specified date and time is within a daylight saving time period IsDaylightSavingTime to check for the date/time and adjust date time depend on the current time is DST or none-DST.
Hope to have your help.

pascal.schwartz11-Jul-09 20:18

pascal.schwartz

11-Jul-09 20:18

Hi,
Does any one know how to set titles for the fixed row in the sample DataGridView obejct?
i just what the write the rows number on the fixed row that all.

thanks
Pascal

Re: How to set title for fixed rows in DataGridView object?

pascal.schwartz11-Jul-09 21:32

pascal.schwartz

11-Jul-09 21:32

Ok, i allready figured it out by using the HeaderCell property

dataGridView1.Rows[0].HeaderCell.Value = "title";

Thanks any way
Pascal

IMAPI v2

Jacob Dixon11-Jul-09 18:49

Jacob Dixon

11-Jul-09 18:49

I posted a while back about how to make ISO files or burn them to a cd-rom. I see that this is possible with IMAPI. Although I have read the articles about it here on codeproject, I still feel it is over my head. I was wondering if anyone knew of any books that went through this and taught you. It seems a lot of the books I see are the basics and thats it.

In my classes we learned nothing that would get me a job pretty much. I have learned everything I know from books. Heck out of my three C# classes I didn't even touch basic threading. Anyways, I'm interested in learning how to use CD-ROMs (burning, copying, etc), and was just wondering a good place to start.

import user32.dll in c# [modified]

Vivek Vijayan11-Jul-09 16:54

Vivek Vijayan

11-Jul-09 16:54

how do i import user32.dll in c# in the below written code
for invoking start button
urgent please....

since this is not working

private void page_Load
{
if(condition)
{
//invoke the start key. i want the menu to pop up just as we click the start menu
SendKeys.Send("^{ESC}");
}
}

i m using this code to import user32

[DllImport("User32.Dll")]
public static extern void Send(String str);
nothing is happening

This code was posted by me...

modified on Saturday, July 11, 2009 11:43 PM

PIEBALDconsult11-Jul-09 17:54

PIEBALDconsult

11-Jul-09 17:54

Not sure, but here's the pattern I use for such things:

[
    System.Runtime.InteropServices.DllImportAttribute
    (
        "User32"
    ,
        SetLastError=true
    ,
        EntryPoint="FindWindow"
    )
]
private static extern System.IntPtr
API_FindWindow
(
    string lpClassName
,
    string lpWindowName
) ;

public static System.IntPtr
FindWindow
(
    string WindowName
)
{
    return ( API_FindWindow
    (
        null
    ,
        WindowName
    ) ) ;
}

Vivek Vijayan11-Jul-09 18:09

Vivek Vijayan

11-Jul-09 18:09

i din get
i m not able to use this
how do i invoke start menu

is this way correct???
urgent plzzzz

[DllImport("User32.Dll")]
public static void send(string str);

private void button1_Click(object sender, EventArgs e)
{
Form1.send("^{ESC}");
}

how can i use sendkeys.send in this way

This code was posted by me...

PIEBALDconsult11-Jul-09 18:21

PIEBALDconsult

11-Jul-09 18:21

Are you looking for System.Windows.Forms.SendKeys.Send ? You don't need to import to do that.

dan!sh 11-Jul-09 22:21

11-Jul-09 22:21

1. Put a breakpoint at the line: if(condition).
2. Run your code.
3. When the breakpoint is hit, press F10. If the control goes to line:SendKeys.Send("^{ESC}");
Then the start menu will be displayed.
4. If control does not goes to that line, then condition is false and hence the start menu will not be displayed.

There is no need to import User32 for this. SendKeys is a class in System.Windows.Forms namespace.

Vivek Vijayan11-Jul-09 23:09

Vivek Vijayan

11-Jul-09 23:09

<br />
private void button1_Click(object sender, EventArgs e)<br />
        {<br />
            textBox1.Focus();<br />
            SendKeys.Send("E");<br />
            SendKeys.Send("^(ESC)");<br />
            <br />
        }<br />

i put a breakpoint at SendKeys.Send("^(ESC)") but then the system hangs and i have to take taskmanager to stop the execution Frown | :(

but the SendKeys.Send("E") is working...(displays E on textbox)

This code was posted by me...

dan!sh 11-Jul-09 23:41

Re: import user32.dll in c# [modified]

11-Jul-09 23:41

Replace (ESC) by {ESC}.

Lino Chacko12-Jul-09 6:12

Lino Chacko

12-Jul-09 6:12

using System.Runtime.InteropServices;

[DllImport("user32.dll")]
static extern void keybd_event(byte bVk, byte bScan, uint dwFlags,
UIntPtr dwExtraInfo);

 private void btnInvokeStartButton_Click(object sender, EventArgs e)
 {
     const int VK_CONTROL = 17;
     const int VK_ESCAPE  = 27;
     const int VK_LWIN = 91;
     const int VK_RWIN = 92;

     const uint KEYEVENTF_KEYDOWN = 0;
     const uint KEYEVENTF_KEYUP = 2;

//if you just want to invoke Start button use this code

     //    Press the Windows Key
     keybd_event(VK_LWIN, 0, KEYEVENTF_KEYDOWN, (UIntPtr)0);
     // Release the Windows key
     keybd_event(VK_LWIN, 0, KEYEVENTF_KEYUP, (UIntPtr)0);

//if you want to use Ctrl and Esc keys to invoke Start button use

     ////   Press the Ctrl-Esc key
     //keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYDOWN, (UIntPtr)0);
     //keybd_event(VK_ESCAPE, 0, KEYEVENTF_KEYDOWN, (UIntPtr)0);
     //// Release the Ctrl-Esc key
     //keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYUP, (UIntPtr)0);
     //keybd_event(VK_ESCAPE, 0, KEYEVENTF_KEYUP, (UIntPtr)0);

 }

modified on Monday, July 13, 2009 8:38 AM

dan!sh 12-Jul-09 7:13