C# - How To Get ASCII For Non-numeric Characters In A Given String
Nov 12, 2010I 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.
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.
Im looking to strip out non-numeric characters in a string in ASP.NET C#
So i.e 40,595 p.a.
would end up with 40595
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.
EDIT
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.
SECOND EDIT
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);
THIRD EDIT
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.
FOUTH EDIT
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: http://stackoverflow.com/questions/2215547/asp-net-multiline-textbox-allowing-input-above-utf-8
I have a Table with three columns :
MessageID (int)
MessageText (ntext)
ChannelID (int)
Now i want to get the list of message IDs where the message Text Contains some Special characters as like the characters from the below image. how to query to get the list of message ids where the message text contains any one of this special characters.
I m reading non-numeric characters in Employer ID.
My Emp id should be 5 digits. The problem is, If I m having space in those 5 characters, it is throwing error.
If it has space at the last character, it is not throwing error.
Ex : 12 34 - is throwing error
1 345 - is throwing error
but 1234 - not throwing error
My code is string numString = empid;
long number1 = 0;
bool canConvert = long.TryParse(numString, out number1); [code].....
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<img id="$ct100templateContent$SectionPanel1$ctl01$ctl02ctl00_templateContent_SectionPanel1_ctl01_ct999img" src="this.jpg"/>
From a W3C semantic point of view the "$" is not valid in an ID or Class. IDs and classes can only contain alpha numeric characters in an XHTML doctype.
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Input form:
[Code]....
Code Behind:
[Code]....
Stored Procedure:
[Code]....
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When the value is viewed in the immediate window, before it is written to the txt file, everything looks fine. My guess is that this is an issue of encoding. But, I'm not real sure how to proceed, where to look, or what to look for.
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22.jpg
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[Code]....
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public int CountChars(string value)
{
bool lastWasSpace = false;
foreach (char c in value)
{
result++;
lastWasSpace = false;
}
return result;
}
and called function as:
string description="sdfsdfsd sdfsdf sdfsdf asdfsa dfsda safsaf sdfdf sdfs sdfsdf sdff sdf ";
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strangeText>
SÙÇ
TÙçy|Ü
DÙÇ
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</strangeText>
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here is a part of the code
string imageid;
string logoid;
string id1;
string id2;
String Name;
protected void Page_Load(object sender, EventArgs e)...
string="/?UPID=1000001&One=1&Two=2"
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string="/?One=1&Two=2"
Or if no query strings
string="/"