Re: calculate elapsed seconds - C# Discussion Boards

Re: Problems to get SelectedValue from binded ComboBox

12-Apr-08 5:27

Well, the selected item is an XmlElement so how about:

XmlElement elem = comboBox.SelectedItem as XmlElement;

and then you can use elem.<property> to get whatever information your after. Like it's name for example.
So perhaps:

XmlElement elem = comboBox.SelectedItem as XmlElement;<br />
String myString = elem.Name;

My current favourite word is: Bacon!

-SK Genius

Stefan Kneitz12-Apr-08 5:45

Stefan Kneitz

12-Apr-08 5:45

Thanks for your help.
Works great.

calculate elapsed seconds

George_George12-Apr-08 4:47

12-Apr-08 4:47

Hello everyone,

What is the most convenient way to check whether elapsed time from some time point to another time point is larger than 2 seconds?

Currently, I am using TimeSpan, and I am using stupid method to check hour/minute/second one by one to decide. Are there any quick way to check?

thanks in advance,
George

Anthony Mushrow12-Apr-08 5:10

12-Apr-08 5:10

Just use TotalSeconds:

DateTime start = ???;
DateTime now = ???;

TimeSpan difference = now-start;
if(difference.TotalSeconds > 2)
  more that two seconds longer

My current favourite word is: Bacon!

-SK Genius

George_George12-Apr-08 20:14

12-Apr-08 20:14

Cool, SK!

regards,
George

Luc Pattyn12-Apr-08 7:21

Luc Pattyn

12-Apr-08 7:21

Hi,

DateTime check=DateTime.Now.AddSeconds(2);
...
if(DateTime.Now>check) doSomething();

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George_George12-Apr-08 20:13

12-Apr-08 20:13

Cool, Luc!

regards,
George

PIEBALDconsult13-Apr-08 5:39

PIEBALDconsult

13-Apr-08 5:39

<br />
System.Diagnostics.Stopwatch timer = new System.Diagnostics.Stopwatch() ;<br />
<br />
timer.Reset() ; // because I use one repeatedly<br />
timer.Start() ;<br />
<br />
// do stuff<br />
<br />
timer.Stop() ;<br />
<br />
// Check timer.Elapsed<br />

George_George13-Apr-08 17:54

13-Apr-08 17:54

Thanks PIEBALDconsult,

What are the pros and cons of your method compared with this one? Smile | :)

http://www.codeproject.com/script/Forums/View.aspx?fid=1649&msg=2504775[^]

regards,
George

PIEBALDconsult13-Apr-08 18:31

PIEBALDconsult

13-Apr-08 18:31

I find it easier to use.

But read the documentation. It has greater precision which may not be important in this case, but maybe down the line you'll find you need it.

George_George14-Apr-08 2:57

Re: Inverted text on image [modified]

14-Apr-08 2:57

Cool, thanks PIEBALDconsult!

regards,
George

Inverted text on image

Kir Birger12-Apr-08 4:30

Kir Birger

12-Apr-08 4:30

Is it possible to somehow draw text on an image with an inverted color? I basically want to make a small timestamp that always shows up, and I don't want to resort to putting it in a colored rectangle if I can avoid it.

I've got access to framework 3.5 if that helps.

Anthony Mushrow12-Apr-08 4:45

A question about web browser control.

12-Apr-08 4:45

Im not entirely certain that would be very readable either, with the changing colour and whatnot. What about an outline around the text?

EDIT: But, if you want inverted text, then how about:

ImageOne - original image
ImageTwo - empty image with same dimensions as ImageOne, white background
ImageThree - Duplicate of ImageOne

Step one:
Draw Text to ImageTwo in black

Step two:
Invert the colour of ImageThree

Step three:
Read the colour of each pixel in ImageTwo.
If the colour is WHITE, then set the same pixel in ImageThree to bright pink or something (255,0,255)

Step four:
Set the transparency key of ImageThree to the same colour as before (in this case, [255,0,255])

Step five:
Draw ImageThree on to ImageOne

My current favourite word is: Bacon!

-SK Genius

modified on Saturday, April 12, 2008 11:02 AM

bg198712-Apr-08 3:58

bg1987

12-Apr-08 3:58

I have a web browser control in my program, and I'm change its url property to different urls, via a foreach loop.
Now, the problem is, that the "Document Loaded" event only fires for the last url in the list, and the only page you eventually see is the last, what i want is kind of a slide-show effect.
is there any way to force the control to pause the loop and fire the event for each of the urls in my collection?

Anthony Mushrow12-Apr-08 4:42

12-Apr-08 4:42

Instead of using a for loop, why not use a timer with an interval of <insert time you want each page to be displayed here> and change the url on each pass through, you could do something like:

Timer()
{
    static int counter = 0;
    switch(counter) {
        case 0:
            navigate to url
            break;
        case 1:
            navigate to url
            break;
        case 2:
            navigate to url
            break;
        case 3:
            navigate to url
            break;
        default:
            counter = 0;
            myTimer.Stop();
            break;
    }
    counter++;
}

My current favourite word is: Bacon!

-SK Genius

bg198712-Apr-08 5:15

bg1987

12-Apr-08 5:15

this might work, but if some site takes extremly long to load (or longer than usual) then the slideshow might miss a website, or show it for too long/too little.

what i want is for the browser to sort of pause the thread, untill the website hes showing is loaded completly, is this possible?

Anthony Mushrow12-Apr-08 5:23

12-Apr-08 5:23

Okay then, how about using the DocumentCompleted event:

DocumentCompleted()
{
myTimer.Start();
}

Timer()
{
    static int counter = 0;
    switch(counter) {
        case 0:
            navigate to url

            break;
        case 1:
            navigate to url
            break;
        case 2:
            navigate to url
            break;
        case 3:
            navigate to url
            break;
        default:
            counter = 0;
            break;
    }
    counter++;
    myTimer.Stop();
}

That way, the set amout of time will pass, then the page will change and the timer will stop. Once the page is loaded the timer will start again. After the set amount of time passes again it will navigate to the new page then stop the timer... and so on.

My current favourite word is: Bacon!

-SK Genius

bg198712-Apr-08 5:45

bg1987

12-Apr-08 5:45

Got it, Thanks alot!

Drag and Drop

Ian Uy12-Apr-08 2:26

Ian Uy

12-Apr-08 2:26

Good Day,

I've been searching for it in Google for like 2 hours but can't hit the proper keyword.

I have a Windows Form with a Listbox on it. When I drag a file from the desktop inside the Windows form, I want to have the path of the file added to the listbox.

Is there an article or a guide on how to accomplish such feat? Laugh | :laugh:

Thanks!

Re: Drag and Drop

Ian Uy12-Apr-08 2:29

Ian Uy

12-Apr-08 2:29

Woops, nevermind. Found it already.

http://blogs.techrepublic.com.com/howdoi/?p=148[^]

Re: Drag and Drop

Anthony Mushrow12-Apr-08 2:33