C# Discussion Boards - CodeProject

10-Jun-09 6:54

my code is as follow. I need to fig out a way to handle if results dosnt find any thing sshow yes something was found or no users had been found at this time. Iv tried to fig this out but im unable to do so. Thank you for your time.

DateTime dt = DateTime.Today;
DateTime less5dt = dt.AddDays(-5);
This.cmb1.Items.Clear();

PrincipalSearchResult<UserPrincipal> results =
UserPrincipal.FindByLockoutTime(
     adPrincipalContext,
         dt,
          MatchType.GreaterThanOrEquals);

foreach (Principal result in results)
{
    cmb1.Items.Add(result.name);
}

harold aptroot10-Jun-09 7:14

harold aptroot

10-Jun-09 7:14

You don't even have an if statement, so what's the problem with it?
What in this code is a "user"?
Is every result in results a user?

partialdata10-Jun-09 8:04

10-Jun-09 8:04

harold aptroot wrote:
You don't even have an if statement, so what's the problem with it?
What in this code is a "user"?
Is every result in results a user?

The users that are locked out in Active directory then it populates them in a cmb1

just want a statement to allow me to show a message to the user yes something was found or now nothing was found. and im unable to fig that out.

Luc Pattyn10-Jun-09 7:25

10-Jun-09 7:25

Hi,

bool someUsersWereFound = results.Count!=0;

Smile | :)

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modified on Wednesday, June 10, 2009 1:48 PM

partialdata10-Jun-09 8:17

10-Jun-09 8:17

Luc Pattyn wrote:
Hi,

bool someUsersWereFound = results.Count!=0;

Smile

first off THANK YOU !

sorry for the noobieness how would I incorporate this into my code?

Luc Pattyn10-Jun-09 8:28

10-Jun-09 8:28

Hi,

MessageBox.Show(results.Count.ToString()+" user(s) found");

PS: I strongly suggest you buy and read a tutorial book on C#. It will teach you the essentials in a structured way.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

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partialdata10-Jun-09 8:48

deserialization of object and then populating form

10-Jun-09 8:48

Luc Pattyn wrote:
Hi,

MessageBox.Show(results.Count.ToString()+" user(s) found");

PS: I strongly suggest you buy and read a tutorial book on C#. It will teach you the essentials in a structured way.

Smile

so the bool statment you showed me before i need to place that inside the foreach i understand the messagebox part just not the part on how to get the program to realise nothing is found then display the message nothing found. Iv tried and watched it when i debug the program but i cant fig it out.

Thanks again.

ThorTheBraveGod10-Jun-09 6:13

ThorTheBraveGod

10-Jun-09 6:13

Hi
Is there a smart way todeserialize an object to form. Instead of typing textbox1.text = object.property..., after the object has been deserialized.
My form has a bunch of controls, and I was just looking for a different way of doing this. I am just looking for ideas I guess?

tom

Re: deserialization of object and then populating form

Ennis Ray Lynch, Jr.10-Jun-09 6:31

Ennis Ray Lynch, Jr.

10-Jun-09 6:31

Personally, I prefer writing the code to set the values of form elements. Often the pursuit of automagic code features will cause you more pain than it is worth. However, you could use reflection if you really wanted to in a poor man's data binding fashion or implement the data binding interfaces to make your object a valid data source. Or make an object data source for which to bind your object.

Need custom software developed? I do C# development and consulting all over the United States.

A man said to the universe:
"Sir I exist!"
"However," replied the universe,
"The fact has not created in me
A sense of obligation."
--Stephen Crane

Re: deserialization of object and then populating form

Henry Minute10-Jun-09 6:35

Re: deserialization of object and then populating form

10-Jun-09 6:35

You could try looking at the documentation for ApplicationSettings this gives some examples of doing this sort of thing.

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

ThorTheBraveGod10-Jun-09 8:06

ThorTheBraveGod

10-Jun-09 8:06

where would I find those examples you are talking about

Re: deserialization of object and then populating form

Henry Minute10-Jun-09 8:48

Re: deserialization of object and then populating form

10-Jun-09 8:48

Try here[^], there are lots of useful links on that page, particularly the last one, immediately above the 'See Also'

ThorTheBraveGod10-Jun-09 9:10

ThorTheBraveGod

10-Jun-09 9:10

Tusen Takk - Norwegian for thank you so much

Re: deserialization of object and then populating form

Henry Minute10-Jun-09 9:12

urgent help pleasse [image processing , pointers , byte ]

10-Jun-09 9:12

My pleasure. Smile | :)

WinSolution10-Jun-09 6:10

WinSolution

10-Jun-09 6:10

Hi Everyone

please look at following two line this is not working when i execute my prject

int div = Convert.ToInt32(textBox1.Text.Trim());
ptr[0] = ptr[1] = ptr[2] = (byte)((ptr[0] + ptr[1] + ptr[2]) / div);

but if i remove the first line and enter an integer value in place of div variable it works such as following line.

ptr[0] = ptr[1] = ptr[2] = (byte)((ptr[0] + ptr[1] + ptr[2]) / 3);

Following is the full listing may it help you to figurout the problem
a method that convert a bitmap from colored to grayscale
//////////////////////////////////////////////////////////////////////////

public Bitmap GrayScale(Bitmap bmpimg)
{
BitmapData bmpData = bmpimg.LockBits(new Rectangle(0, 0, bmpimg.Width, bmpimg.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
int remain = bmpData.Stride - bmpData.Width * 3;

unsafe
{
byte* ptr = (byte*)bmpData.Scan0;

for (int i = 0; i < bmpData.Height; i++)
{
for (int j = 0; j < bmpData.Width; j++)
{
int div = Convert.ToInt32(textBox1.Text.Trim());
ptr[0] = ptr[1] = ptr[2] = (byte)((ptr[0] + ptr[1] + ptr[2]) / div);

ptr += 3;
}
ptr += remain;
}
}

bmpimg.UnlockBits(bmpData);

return bmpimg;
}

Re: urgent help pleasse [image processing , pointers , byte ]

Luc Pattyn10-Jun-09 6:29

Re: urgent help pleasse [image processing , pointers , byte ]

10-Jun-09 6:29

why is int div = Convert.ToInt32(textBox1.Text.Trim()); inside the nested loops? Are you planning on changing div while the image processing is going on? or are you just looking for ways to make it extremely slow?

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
Show formatted code inside PRE tags, and give clear symptoms when describing a problem.

Henry Minute10-Jun-09 6:31

Re: urgent help pleasse [image processing , pointers , byte ]

10-Jun-09 6:31

WinSolution wrote:
this is not working when i execute my prject

What does this mean?
Are you getting an exception?
Does it do something you do not expect?
Have you single stepped, to see what value div is set to in your code?

What, which, something else?

BTW there are several articles here on CP that demonstrate converting to greyscale, have you looked at them.

WinSolution10-Jun-09 6:38

WinSolution

10-Jun-09 6:38

Thanks both

problem solved i was not handling exception and not i placed that code outside of the loops as follow

public Bitmap GrayScale(Bitmap bmpimg)
{
BitmapData bmpData = bmpimg.LockBits(new Rectangle(0, 0, bmpimg.Width, bmpimg.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
int remain = bmpData.Stride - bmpData.Width * 3;

unsafe
{
byte* ptr = (byte*)bmpData.Scan0;
int div = 1;
try
{
div = Convert.ToInt32(textBox1.Text.Trim());
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
for (int i = 0; i < bmpData.Height; i++)
{
for (int j = 0; j < bmpData.Width; j++)
{

ptr[0] = ptr[1] = ptr[2] = (byte)((ptr[0] + ptr[1] + ptr[2]) / div);

ptr += 3;
}
ptr += remain;
}
}

bmpimg.UnlockBits(bmpData);

return bmpimg;
}

Re: urgent help pleasse [image processing , pointers , byte ]

Luc Pattyn10-Jun-09 7:29