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first thing I would suggest is that you
1. put a break point on the SQL string q2
2. after stepping over it have a look at the SQL and run it in your database, does this give you the results that you are expecting?
3. purely is a nit pick I would look into having SQL Parameters, but do this after you have sorted out the exisitng query
SQL Parameters example[^]
Every day, thousands of innocent plants are killed by vegetarians.
Help end the violence EAT BACON
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I am new to learn WPF and MVVM design pattern, beginner for both. So can anyone suggest me the tutorials for WPF and MVVM design pattern in C# with examples.
Thanks in advance.
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Thanks Rechard for your prompt reply.
I visited this link, but don't identify from where to start as a beginner. I just want to make clear some basic understanding and idea of WPF & MVVM. After that I will go to these links for little bit more clear about its aspects.
Once again thanks.
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Thanks Rechard for your reply.
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I'm supposed to write a very simple program to display, "A, B, C (and a sentence I forgot already)".
The catch is, we're supposed to use the Unicode instead of the string literals for A, B, C.
I know the Unicode for the A character, the book I'm reading uses its Unicode as an example.
I went backwards and forwards in my book a few chapters, nowhere in it does it explain or give an example on how it got that Unicode for the capital letter A.
I new how to display the data type of a variable with:
<pre lang="c#">
Console.WriteLine(x.GetType);
</pre>
Is there a similar enumeration to find the Unicode?
(Did I use enumeration in the right context here? Trying to learn the lingo as I go.)
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If you know the Unicode value for "A", then you can work out the rest quite easily; just by adding 1 to the value for each successive letter up to "Z". And if you need the value for any of the less common characters then the Windows Character Map application will show them to you.
Use the best guess
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I thought about that… But, because I'm in the beginning stages of learning C#
I wanted to be sure, instead of just jumping right in.
Thanks.
PS-it would be nice to know how to convert a literal character to Unicode programmatically.
<a href="http://www.widmarkrob.com">My Coding Journey</a>
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WidmarkRob wrote: it would be nice to know how to convert a literal character to Unicode programmatically.
A literal character in C# is already a Unicode value, you just need to use a cast to get that value. For example:
char strCharacter = 'Q';
Console.WriteLine(strCharacter);
int value = (int)strCharacter;
Console.WriteLine(value);
Console.WriteLine("{0:X}", value);
Use the best guess
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Okay, I'm missing something somewhere…
<pre lang="c#">
Console.WriteLine("\u0041");
</pre>
That Prints out to the Console Window:
A
LOL, when I change 41 into 82 it gave me the:
?
<a href="http://www.widmarkrob.com">My Coding Journey</a>
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\u0041
what does that exactly mean?
"\u0041"
Unsigned?
Some sort of unsigned datatype?
I'm learning, I haven't learned that much yet.
I have a book on C# that I'm reading.
Whenever they try to explain something, it doesn't always think in… So, I do a Google search to try to find answers.
There must be a specific enumeration of the type char that I'm missing somewhere.
Or, Method… Is a better word than enumeration?
<a href="http://www.widmarkrob.com">My Coding Journey</a>
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WidmarkRob wrote: what does that exactly mean?
"\u0041"
This is merely a way of representing a Unicode character by its hexadecimal value. If you look at the Windows Character Map application it shows you the hexadecimal value for each Unicode character. You can also see similar values for the ASCII character set. It may be that you need to get hold of a reference book that explains how data is held and represented in digital computers, and how it can be converted from one type to another. More information can also be found at http://www.unicode.org/faq/utf_bom.html[^].
Use the best guess
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Is there any built in method (.Net C#) to convert the unix time (double datatype) to datetime?
I got the following code from Stackoverflow :
public static DateTime UnixTimeStampToDateTime( double unixTimeStamp )
{
// Unix timestamp is seconds past epoch
System.DateTime dtDateTime = new DateTime(1970,1,1,0,0,0,0);
dtDateTime = dtDateTime.AddSeconds( unixTimeStamp ).ToLocalTime();
return dtDateTime;
}
But it's not working properly. The above method returns 1970-01-01 00:00:00 as result.
Thanks.
here is the Stackoverflow link:
http://stackoverflow.com/questions/249760/how-to-convert-unix-timestamp-to-datetime-and-vice-versa[^]
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I don't see how that will work since you are adding a double value to an integer one, which means you lose all the precision. You would first need to convert the time portion of the Unix value into an integer number of seonds. Try some of these links[^].
Use the best guess
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Not tested, but I believe the following should do the trick for you...
public const long unixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc).Ticks;
static DateTime toDateTimeUtc(
long unixTime)
{
return new DateTime(unixTime + unixEpoch, DateTimeKind.Utc);
}
static long toUnixTime(
DateTime dateTime)
{
return dateTime.ToUniversalTime().Ticks - unixEpoch;
}
-Eric.
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I'm aware of facial recognition software, but that is too specific. Are there any other types of camera footage recognition software out there?
I don't even know what's happening.
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What do you mean by "camera footage recognition"?? The term makes no sense on its own.
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Like facial recognition, but not limited to faces.
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If you're looking for image processing, perhaps you could look into AForge.net?
djj55: Nice but may have a permission problem
Pete O'Hanlon: He has my permission to run it.
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A video is a bunch of frames, so, theoretically, you can apply facial recognition to each of these frames. However, there may be other complications like blur; so, you'll have to apply blur-removal algorithms; and these may not work well in all situations.
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Wigwam2323 wrote: that is too specific.
You want it less specific? Like "gender" or what?
Given that it needs training to recognize "things", I'd guess that it could learn to discriminate between animals.
Good luck fishing for more idea's 
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
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Less specific as in, not limited to faces. Or even people.
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What has this to do with C#?
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