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I generally try to avoid static in classes for examples like this.
The example given implies there is some global collection of Employees to/fomm which employees can be added, deleted, etc.
Instead, I prefer to make the collection explicit, with some collection List<employees>, or an explicit implementation class like EmployeeList.
That way, its possible later to create multiple instances if needed, for example, it can improve testability massively too, as EmployeeList can be mocked.
In C#, I generally try to limit use of static to those methods the framework requires me too - operator overloading etc.
Even the use to construct values is suspect - instead use a factory object, implemented as a separate class, or a factory method on an existing class to create instances.
Gilad Bracha has written a good blog entry[^] that highlights many of the dangers of static much better than I could.
<edit>That talks mainly about static state - the following blog entry[^] discusses the issue in context of constructors, which are static methods.
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Rob Grainger wrote: The example given implies there is some global collection of Employees to/fomm which employees can be added, deleted, etc.
Right. The example is typical of APIs one would encounter in a data access layer, where the store is a database.
/ravi
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Hello,
I have a very simple problem but I don't now how to search about this on Google.
I have a url I don't know it is in Unicode or what I am pasting it please if any one help me regarding this.
&#1495;&#1489;&#1512;&#1493;&#1514;-&#1514;&#1497;&#1497;&#1512;&#1493;&#1514;
actually this is a part of url and I have to convert it to such coding to let my browser to understand it and I can use it.
Yes I know about HttpUtility.UrlDecode but as I told you earlier I don't know in which coding is my string, most when I paste my string in google and write that I want to decode it, google automatically convert it to original language, I want the same thing which google is doing but how?
Please help me out guys because I spend about 2 hours on this issue but no success.
Thanks in advance
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I'm not sure quite what you are trying to do, but is it to display that string? Something like (I just threw this into a page of an MVC3 page to quickly test, but you can probably follow what I mean). It displays a Hebrew string - if that is what you are trying to do. But I may have interpreted you wrongly.
<p lang="he">@Html.Raw(@HttpUtility.HtmlDecode("&#1495;&#1489;&#1512;&#1493;&#1514;-&#1514;&#1497;&#1497;&#1512;&#1493;&#1514;"))</p><pre>
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http://easy.co.il[^]Thanks for reply
No am not trying to display this string my page.
Let me explain it again.
Following (1) and (2) is example
I have an url :
(1)
<a href="http://easy.co.il/&#1495;&#1489;&#1512;&#1493;&#1514;-&#1514;&#1497;&#1497;&#1512;&#1493;&#1514;/">http://easy.co.il/&#1495;&#1489;&#1512;&#1493;&#1514;-&#1514;&#1497;&#1497;&#1512;&#1493;&#1514;/</a>[<a href="http://easy.co.il/&#1495;&#1489;&#1512;&#1493;&#1514;-&#1514;&#1497;&#1497;&#1512;&#1493;&#1514;/" target="_blank" title="New Window">^</a>]
I want to convert it to
(2) <a href="http://easy.co.il/%D7%97%D7%91%D7%A8%D7%95%D7%AA-%D7%AA%D7%99%D7%99%D7%A8%D7%95%D7%AA/">http://easy.co.il/%D7%97%D7%91%D7%A8%D7%95%D7%AA-%D7%AA%D7%99%D7%99%D7%A8%D7%95%D7%AA/</a>[<a href="http://easy.co.il/%D7%97%D7%91%D7%A8%D7%95%D7%AA-%D7%AA%D7%99%D7%99%D7%A8%D7%95%D7%AA/" target="_blank" title="New Window">^</a>]
As you can see (1) if I past it in browser it is not working and (2) is working fine.
So now I have a lot of urls like (1) and I have to convert them in to (2).
Please help me how I will do this conversion.
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Please help me out , I am not able to solve this problem. 
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Hi,
I wrote a little decoder for it:
string s1="this is to be the input string, however the CP message editor page does not like Unicode";
string s2="";
for (int i=0; i<s1.Length; i++) {
if (s1[i]=='&') {
int n=0;
for (int j=6; j<10; j++) {
char c=s1[i+j];
int k="0123456789".IndexOf(c);
n=10*n+k;
}
s2+=(char)n;
i+=10;
} else {
s2+=s1[i];
}
}
log("s1="+s1);
log("s2="+s2);
It turns your specially encoded string into a regular Unicode string, which browsers seem to accept well.
Warning: there isn't any error checking as it is, you may want to improve on that. All I did is assume that every ampersand is the start of a 10-character sequence holding a 4-digit decimal number, which really should be checked.
Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum
Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.
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and this is a lot safer already:
string s1="the input string";
s1=HttpUtility.HtmlDecode(s1);
string s2="";
for (int i=0; i<s1.Length; i++) {
if (s1[i]=='&' && s1[i+1]=='#') {
i+=2;
int n=0;
for (; ; ) {
char c=s1[i++];
int k="0123456789".IndexOf(c);
if (k<0) break;
n=10*n+k;
}
s2+=(char)n;
i--;
} else {
s2+=s1[i];
}
}
log("s1="+s1);
log("s2="+s2);
Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum
Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code. modified on Wednesday, April 6, 2011 6:30 AM
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thank you very much, It really help me out.
Thanks again.
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You're welcome.
Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum
Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.
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A bit ugly, but seems to work...
private static void TestDecode()
{
UTF8Encoding enc = new System.Text.UTF8Encoding();
string output = "";
string smain = "&#1495;&#1489;&#1512;&#1493;&#1514;-&#1514;&#1497;&#1497;&#1512;&#1493;&#1514;";
int len = smain.Length;
int pos = 0;
uint acode = 0;
while (pos < smain.Length)
{
int pos2 = -1;
if (smain.Length >= pos + 7 && smain.Substring(pos,6) == "&#")
{
pos2 = smain.IndexOf(";",pos + 6);
}
if (pos2 >= pos + 7 && uint.TryParse(smain.Substring(pos + 6, pos2 - pos - 6), out acode))
{
char[] c = { Convert.ToChar(acode) };
byte[] b = enc.GetBytes(c);
for (int i = 0; i < b.Length; i++)
{
output += String.Format("%{0:x2}", b[i]).ToUpper();
}
pos = pos2 + 1;
}
else
{
output += smain[pos];
pos += 1;
}
}
Console.WriteLine(output);
}
modified on Wednesday, April 6, 2011 7:05 AM
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Thank you very much davidnz you guys really help me out.
Seriously I was stuck and you guys show me how to solve this problem.
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You're welcome. I tidied mine up a bit this morning but have a feeling it could still be a lot simpler. I'm not much of a regex guru, but this is I think a lot tidier than my first attempt.
private static void TestReg2()
{
UTF8Encoding enc = new System.Text.UTF8Encoding();
string output = "";
string smain = "&#1495;&#1489;&#1512;&#1493;&#1514;-&#1514;&#1497;&#1497;&#1512;&#1493;&#1514;";
int len = smain.Length;
int pos = 0;
uint acode = 0;
smain = Regex.Replace(smain,@"&#[0-9]+;",(m) => {
Match m2 = Regex.Match(m.Value, @"[0-9]+");
if (m2.Length > 0)
{
acode = uint.Parse(m2.Value);
output = "";
char[] c = { Convert.ToChar(acode) };
byte[] b = enc.GetBytes(c);
for (int i = 0; i < b.Length; i++)
{
output += String.Format("%{0:x2}", b[i]).ToUpper();
}
return output;
}
else
return "";
});
Console.WriteLine(smain);
}
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I am building a Windows Mobile Application for work and I am having an issue. I tried using VB and was successful but it is buggy and did not want to deal with all the bugs involved so I am gonna try C#.
I have the base which is a tabbed webrowser and several menu items.
What I cannot figure out is how to make one of those menu items link to a webpage in the browser.
So basically I have a menu item I want to link to a website and not sure what code I would use to do this.
Thanks in Advanced.
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Hi,
if you have myWebBrowser, an instance of the System.Windows.Forms.WebBrowser class, you can make it navigate to some URL by issuing the statement myWebBrowser.Navigate(URLstring).
Normal tabbed browsers have one browser-like control per tab page, so each of them can be active (e.g. fetching web pages) at the same time. So you may want that too.
PS: the way .NET works, whatever you tried in VB.NET will in the end look pretty much the same in C#. You are using the same classes after all, it is mainly a difference of syntax you will notice.
Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum
Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.
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It is telling me that myWebbrowser does not exist in this context; this is the issue I keep running into I just thought it was my coding (I guess it is lol)
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Thanks for your help I was not able to make it work but you got me thinking and I figured it out I am using the following code.
WebBrowser thiswebpage = GetCurrentWebBrowser();<br />
thiswebpage.Url= new Uri("http://google.com");
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hello
i need help i am working on database and i have connected it to the c# i need small problem i have created a serach button but i dont want to show the result on data grid view if u can help plz give me the answer and the code
ty
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ace300 wrote: hello
i need help i am working on database and i have connected it to the c#
i need small problem i have created a serach button but i dont want to show the
result on data grid view if u can help plz give me the answer and the code
I'm sorry, I don't have a clue what you're on about. You have a search button and you don't want to show the results on a data grid view. Well, don't write any code to bind the data to the data grid. Job done.
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Problem is datagrid view he can not display the images and I need another tool to help me in any work when he hit the search button shows me the name of the worker that searching for him and his image and the national number
or if u have a sloution for this problem in data grid view tell me
and ty again
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We still don't have a frickin' clue what you're talking about. Perhaps you need to find someone with better skills in Communication and English to pass on your problem?
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I'm sorry. I've tried, but I simply don't understand what you're asking. Could you possibly get somebody else to translate this for you? I'm not trying to be funny here because your grasp of English is undoubtedly better than my grasp of your native tongue, but you still need some clarification.
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Aren't you going to compensate him for all the univotes he got on that question?  .
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I'm afraid even a Jedi wouldn't have the force to do that.
Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum
Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.
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