Strings Clarification - Biggest Character Using Ascii Values?

Mar 22, 2010

i have i doubt. any body clarify this doubts. Find biggest character in a string. using ascii values.

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Initial .Text value set when the page loads:


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In this case the Controller actions take an object of the following class :


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The general structure looks something like this, where DoSomething() is actually part of another class that will be used by lots of different pages:

pretected void Page_Load (object sender, EventArgs e)
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Feb 5, 2010

I've sucefully created a method to insert values through EF, but i've a question (maybe, a newbie question).

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Example 1 (DAL):


Example 1 (View Layer, on a click button for example):


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What do you advice me to do? I know that both ways works, but i'm trying to develope with better patterns (i don't know if this is the exacly word, sorry my bad english)

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We may achieve this effect using Ajax, but the key is I dont wanna raise too many useless event .

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Possible Duplicate:

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It took me a while to realize the following, which was generated by VS after dragging and dropping the script file to a view file, does not work


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Jan 25, 2011

How to read character by character in line from text file?

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Convert A 40 Character SHA1 Hash To A 20 Character?

Mar 17, 2010

I have a legacy MySQL database which stores the user passwords & salts for a membership system. Both of these values have been hashed using the Ruby framework - roughly like this:

hashedsalt =
hashedpassword =

So both values are stored as 40-character strings (varchar(40)) in MySQL. Now I need to import all of these users into the ASP.NET membership framework for a new web site, which uses a SQL Server database. It is my understanding that the the way I have ASP.NET membership configured, the user passwords and salts are also stored in the membership database (in table aspnet_Membership) as SHA1 hashes, which are then Base64 encoded (see here for details) and stored as nvarchar(128) data.

But from the length of the Base64 encoded strings that are stored (28 characters) it seems that the SHA1 hashes that ASP.NET membership generates are only 20 characters long, rather than 40. From some other reading I have been doing I am thinking this has to do with the number of bits per character/character set/encoding or something related.

So is there some way to convert the 40-character SHA1 hashes to 20-character hashes which I can then transfer to the new ASP.NET membership data table? I'm pretty familiar with ASP.NET membership by now but I feel like I'm just missing this one piece. However, it may also be known that SHA1 in Ruby and SHA1 in .NET are incompatible, so I'm fighting a losing battle.

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Mvc Linq Clarification Database Call Or Will It Based On Dic?

Mar 2, 2011

var Dic = _db.Dictionaries.Single(m => m.int_DictionaryId == id);
var DicRef = Dic.DictionaryRefs.Where(m => m.int_DictionaryId == id);

The second one will make a database call or will it based on Dic?

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Manually Converting Between ASCII And Net Characters?

Feb 5, 2010

I am working on writing some code to scrub user input to my ASP.NET site. I need to scrub input to remove all references to ASCII characters 145, 146, 147, 148 which are occasionally getting input from my mac users who are copying and pasting content they write in a word processor on their macs.

My issue is the following three strings I am led to believe should output the same text.

string test1 = Convert.ToChar(147).ToString();
string test2 = String.Format("'{0}'", Convert.ToChar(147));
char[] characters = System.Text.Encoding.ASCII.GetChars(new byte[] { 147 });
string test3 = new string(characters);

Yet when I set an ASP TextBox to equal the following

txtShowValues.Text = test1 + "*" + test2 + "*" + test3;

I get a blank value for test1, test2 works correctly, and test3 outputs as a '?'.

Can someone explain what is happening differently. I am hoping this will help me understand how .NET is using ASCII values for characters over 128 so that I can write a good scrubbing script.

The values I mentioned (145 - 148) are curly quotes. So single left, single right, double left, double right.

By "works correctly" I mean it outputs a curly quote to my browser.

The following code (mentioned in an answer) outputs the curly quotes as well. So maybe the problem was using ASCII in test 3.

char[] characters2 = System.Text.Encoding.Default.GetChars(new byte[] { 147 });
string test4 = new string(characters2);

I found a mac that I could borrow and was able to duplicate the problem. When I copy and paste text that has quote symbols in them from Word into my web app on the mac it pastes curly quotes (147 and 148). When I hit save curly quotes are saved to the database, so I will use the code you all helped me with to scrub that content.

Spent some time writing more sample code based on the responses here and noticed it has something to do with MultiLine TextBoxes in ASP.NET. There was good info here, so I decided to just start a new question:

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C# - How To Get ASCII For Non-numeric Characters In A Given String

Nov 12, 2010

I will have my string as follows

String S="AB-1233-444";

From this i would like to separate AB and would like to find out the ASCII for that 2 alphabets.

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