C# - Character Encoding Problem Utf8?

Jan 14 at 14:24

I'm storing some html-encoded data in a sql server database and I've written a script to output the data in a csv format minus the html tags and I'm getting a weird issue when html-decoding the remaining data. For example the data contains a quote character (which is html-encoded as ), but when I try to html-decode it the data comes out as a series of weird characters (’). Does anyone know how to solve this issue? The output encoding of the page is UTF-8 if that helps.

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AJAX :: ScriptManager Fails On Encoding.UTF8.GetString?

Mar 07, 2011 03:12 PM

I'm having problems with a bit of code, where i'm trying and failing to read the EXIF data from jpg files. I cannot figure the error, although everything I've been able to find online points toward the same thing: my code is correct. The code is as follows.

[Code]....

The only error i get is a javascript error in IE8, stating Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed.". I have absolutely no idea what it's doing, why it's going wrong or how it's failing.

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Utf 8 - 3.5 Page Character Encoding?

May 6 10 at 17:34

I have a problem in my asp.net 3.5 application (C#) when I try to render in my pages characters like 'è' which are shown in a very strange manner (if i'm lucky i get a ? mark in my web page). in fact Expression Web, when i open my web site, substitutes the è char with �...How can I tell asp.net that I want to use a particular charset so that i can write in the html source letters like è without using hexadecimal codes??????I tried in the web.config this:inside the system.web namespace of the file but nothing works...

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URL Encoding - Illegal Character Replacement?

Dec 24 10 at 10:41

I am doing some url redirections in a project that I am currently working on. I am new to web development and was wondering what the best practise was to remove any illegal path characters, such as ' ? etc.I'm hoping I don't have to resort to manually replacing each character with their encoded urls.I have tried UrlEncode and HTMLEncode, but UrlEncode doesn't cater for the ? and HTMLEncode doesn't cater for 'E.G. If I was to use the following:

Dim name As String = "Dave's gone, why?"
Dim url As String = String.Format("~/books/{0}/{1}/default.aspx", bookID, name)
Response.Redirect(url)

I've tried wrapping url like this:Dim encodedUrl As String = Server.UrlEncode(url)AndDim encodedUrl As String = Server.HTMLEncode(url)

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Web Forms :: Turkish Character Encoding - Set Page

Jan 04, 2010 04:11 PM

For some reason the encoding on my website has gone wrong. Turkish characters that were working before are now coming out in '?'. I have not touched anything. Our regular developer is away so I'm not sure if he touched anything. The text has been working on this page till recently and on the previous years page. That has now been affected to. I have set the following statement in the <head> section:

< meta
http-equiv="Content-Type"
content="text/html; charset=utf-8" />
Unicode UTF-8 has worked in the past.

When I view the encoding in Internet Explorer 8 tools menu it is saying 'Western European(ISO)'. In my test environment, encoding is showing up as Unicode UTF-8 and hence the code is correct. So my question is, why is the encoding change to Western European (ISO) and how can I change?

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Character Encoding - URL Having A & Getting Encoded In A Repeater Control?

Feb 9 at 15:48

I have a URL which is in a ASP.NET repeater control:[URL]This gets encoded to & when it gets rendered to the browser.We have tried decoding it using server side tags in the repeater, that did not work.How can i stop this from happening?[URL]

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Reading Characters From An Unknown Character Encoding?

Feb 17 at 18:28

I have a string that came from an old database of unknown character encoding. I am having trouble encoding/filtering the string to show the correct text.What the data looks like in the database: MarronniÃre à quatre pansWhat we need the string to show up as: Marronnière quatre pansSpecifically, I am having trouble parsing the string so I can display the character ()This is an asp.Net 2.0 site written in VB using a Sql Server 2005 Database. Not sure if it matters, but data comes from a column with this collation: SQL_Latin1_General_CP1_CI_ASI've tried encoding the string to various encodings in the code to no avail. I've also passed the string (encoded different ways) into a byte array to find a unique byte pattern for the bad characters without success.

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C# - Quote Character Encoding Causes Problems When Setting A Control's Property?

Dec 10 10 at 17:09

I have an ASP.NET web application and at a certain point I do this:mycontrol.stringparameterforjscript = "document.getElementById('" + myotherparam + "').value = 'Hello'";The problem is that this thing does not work.s you can see this sets a javascript in some event of some tag. Well when the page is redered the problem is that my parameter look like this:

<textarea onfocus="document.getElementById('myvalue').value = 'Hello'">

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Webmailer Encoding Characters / Set The Content Encoding Of The Whole Page?

Jan 04, 2010 12:22 PM

I have written a web mailer that can send and receive emails and display them on a webpage.I have a problem displaying special characters though. Like Russian, and Greek and chinese.I am using openpop.net and I can get the encoding of the incoming email as one of my variables.Thing is, how do I display it? Do I set the content encoding of the whole page to what that specific email encoding is?I've got it UTF-8 at the moment and I get garbage.

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MVC :: Encoding Whitespace / Not Encoding The < As A Encode But Into The Form <?

Jan 05, 2010 10:30 AM

Im pulling out a text field from the database which has and 's in it for line breaks. Which I have left there for pupose of being able to edit the fields later on.

So when i try to display the text I need to replace them which I have done with:

[Code]....

Simple enough. Only when I run the page the source code I get for it is:

<br />

So it seems its not encoding the < as a encode but into the form <

Does anyone know how to stop this happen. Or a method around it?

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Decode Form Urlencoded UTF8 In C#?

Dec 22 10 at 5:46

Edit I'd misunderstood what was happening here.. there is a POST send, then receive back a result, then the URL string which I'm seeing here is part of the the query string... so I can't decode what this really is, as it is encoded by the payment gateway people and not me.

I'd like to decode a URL string

Here is the code:

[Code]....

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System.Text.Ecoding.UTF8.GetString Is Returning Junk - How To Fix It

Aug 10 10 at 17:38

I have a Response filter setup to transform the html before spitting back out to the browser [URL]. This works fine on everyones machine but mine. Actually it was working on my machine until I had to do a hard reset because it locked up.

public override void Write(byte[] buffer, int offset, int count)
{
string strBuffer = System.Text.UTF8Encoding.UTF8.GetString(buffer, offset, count);

For everyone else (and mine previosly) strBuffer contains HTML. Now for whatever reason it's returning junk characters for me.

Update

Turns out that "Enable dynamic content compression" is causing the issue. For some reason it's getting gzipped before being passed into the filter.

Solution

Setting the "dynamicCompressionBeforeCache" to false in the web.config fixed the issue.
<urlCompression doStaticCompression="true" doDynamicCompression="true" dynamicCompressionBeforeCache="false" />

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Forms Data Controls :: Change The Column Name - "Remove First Character And After 3rd Character Insert Colon

Jan 14, 2011 09:48 AM

My issue is that , need to change the column name(following format "Remove first character and after 3rd character insert colon") of the gridview (which is binded with XMLTextReader). Without changing directly XML file, Required to change the column name dynamically at runtime .

Performance.xml

<Performance>
<Departments>
<Heading>FS</Heading>
<S0015>1</S0015>
<S0020>2</S0020>
<S0025>5</S0025>
<S0030>5</S0030>
<S0035>6</S0035>
</Departments>
<Departments>
<Heading>BS</Heading>
<S0015>0</S0015>
<S0020>3</S0020>
<S0025>5</S0025>
<S0030>1</S0030>
<S0035>3</S0035>
</Departments>
</Performance>

Heading S0015 S0020 S0025 S0030 S0035
FS 1 2 4 5 6
BS 0 3 5 1 3
Required Format: Remove first character and after 3rd character insert colon (S0015 -- 00:15)

Heading 00:15 00:20 00:25 00:30 00:35
FS 1 2 4 5 6
BS 0 3 5 1 3

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Web Forms :: Norwegian Character Does Not Show Instead Showing Some Strange Character?

Dec 07, 2010 01:33 PM

Norwegian character( å æ ø) does not show instead showing some strange character.

used function below:

utf8 = System.Text.Encoding::get_UTF8();

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InvalidUserName In CreateUser When Creating User With Character Before The @ Character

Jul 27 10 at 14:49

I looked up the msdn documentation and it says that InvalidUserName is thrown when it does not find the username in the database, which is fine because the user I am creating should not exist in the database. If I use test@example.com, it works, but if I try it with test.@example.com, the status from Membership.CreateUser is InvalidUserName.

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How To Read Character By Character From Text File

Jan 25 at 12:30

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 10 at 22:45

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 =
Digest::SHA1.hexdigest("--#{Time.now.to_s}--#{login}--")
hashedpassword =
Digest::SHA1.hexdigest("#{hashedsalt}:#{password}")

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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Reading Line Character By Character

Mar 04, 2010 12:50 PM

I want to read a line character by character, in the sense I want to read each and every character on the line. can I can make that line as a string. breaking string into substrings ? if possiblw how.? I m unable to start. can anyone give the code.

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"Invalid Name Character In 'georss:point'. The ':' Character, Hexadecimal Value 0x3A, Cannot Be Included In A Name."

Jul 11, 2008 10:44 AM

I want to add coordinates to my rss feed like this:

<georss:point>48.67736 -113.638458</georss:point>

This is the code to add:

SyndicationItem.ElementExtensions.Add("georss:point", null, "48.67736 -113.638458");

But the problem is, when a try to save with Rss20FeedFormatter.WriteTo(rssWriter); it's trows an exception:

"Invalid name character in 'georss:point'. The ':' character, hexadecimal value 0x3A, cannot be included in a name."

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Databases :: How To Avoid Or Solve (ORA-00911:Invalid Character) And ORA - 00911: Invalid Character In Sql

Jun 10, 2009 03:33 PM

I am developing a web application using csharp on visual studio 2003. Connecting to the oracle database. However, I have a problem when it comes to the select statement or Search sql that I am using to retrieve records from the database table.The table where I am reading the information is as has records with details that have comas, slashes, characters like( <,>, &, %). But I have have no right to change the details in database table. But just to read from the table.

The table has two fields namely Code, Codedescription.The sample of table record is as follows;
Code Codedescription
1 Loctose and lactose syrup cont .By weigh <99% Lact
2 Frozen Sothern bluetin tuna (Thnnus maccoyii)
3 Textured yarn, nes, nprs
4 UNBLEACHED plain cotton WEAVE, WITH >= 85% COTTON
5 T/MOMTRS/PYROmtrs, not COMB, WITH OTHERS INSTRS


Now the sql statement has to get the code by searching using the Codedescription details. But when the description with following characters( // <,>, &, %). is used to search Iam receiving the following errors.

1 (ORA-00911:Invalid character)
2 ORA - 00911: Invalid character

How can avoid these errors? Second I can write an sql that will execute with characters( // <,>, &, %) in it, but with out giving errors. When I remove characters in Codedescription at the time of searching, it fails to pick the correct code. How can I solve this?

Part of the code Iam using is below.

SELECT Code FROM Matasttable WHERE STU_DSC = '"+ drpdescription.SelectedValue.ToString() +"';

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AJAX :: How To Change "Day Name" In Calendar Extender From "2 Character" To "3 Character" Long Name

Jul 07, 2010 01:08 PM

I am using AJAX Toolkit's Calendar extender control.

When the control is rendered on page, the day names are 2 character long and shown as "Su", "Mo", "Tu", "We", "Th", "Fr" and "Sa".

Instead, I want it to be rendered as 3 character long format as "Sun", "Mon", "Tue", "Wed", "Thu", "Fri" and "Sat". note that I further need to localize this application too. So, I probably need some setting that could do the magic instead of overwriting on some server side event to achieve it.

There is probably some settings that I am not aware of.

The code for localizing the Calendar extender is as follows (in case if you need to test).

[code]....

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C# - Use Encoding For HtmlString?

Dec 16 10 at 15:45

What's better in ASP.NET MVC

<%= Html.LabelForModel() %>
or
<%: Html.LabelForModel() %>

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Encoding Url In Web.config?

Sep 16 10 at 14:34

I have a url that I would like to put into my web.config file. http://google.com?parcel&bob&&smithI imagine that the .net run time is upset with the ampersand's so i encoded them to be&.http://google.com?rcel&bob&&smithThis also doesn't work. Any ideas would be great, if you could supply a link to the documentation of why this is that would be even better.

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C# - Asp.Net Encoding Configuration

Dec 10 10 at 20:57

I am using ASP.NET 4 c# 2010.Well my website has some problem with character encoding.It seems that when I generate my output it is htmlencoded. So a ' is encoded with #number;... this is not always a good thing because when I need to dynamically insert jscript in my controls, every ' or " are encoded and js doesn't work properly...

How to correctly tell ASP.NET not to encode? or better telling him that he must correctly manage ' " and other chars like these withput rendering them htmlencoded?

An example of string being output: this.MyControl.Attributes["onfocus"] = "execJs('param')"

well it results so:

<textarea id=".." onfocus="execJs('param')">...

This is not correct.

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Web Forms :: CreateUserWizard Encoding?

Jan 18, 2010 04:18 PM

Can someone lead me to understanding when to set the encoding for the email step when sending new member emails. For instance what is the default or how can I tell what it is or if I want to set it in the SendMail event in code. See the thing I am wondering is when is it applied? If I set the MailDefinition-From in the html part then in code using the SendMail event set the encoding using

e.Message.From = new
MailAddress("foo@bar.com","foo",System.Text.Encoding.UTF8);

then I assume that it must actually get applied when the email is sent. Is that correct?

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C# - Encoding While Parsing XML File

Dec 11 10 at 21:07

I'm developing a small ASP.NET Mvc project in Mono 2.4, Ubuntu 10.10. There is an array of objects, each one of them corresponds to a certain xml file. Reading of the xmls is performed with XmlTextReader. That does not work because xml files have rare "cp866nav" encoding, which is not supported by XmlTextReader ("System.ArgumentException: Encoding name 'cp866nav' not supported"). But it works fine if encoding in xml header is changed to "cp866". I found a kind of solution which consists in initializing XmlTextReader with a StreamReader with a certain encoding instead of file name, like in the code below:

XmlTextReader reader = new XmlTextReader(new StreamReader(Server.MapPath(filename), Encoding.GetEncoding("cp866")));


The issue is that the directory which contains xml files is read only (I can not change it), so I get "System.UnauthorizedAccessException: Access to the path '' is denied.". Rather strange, because XmlTextReader initialized with a filename seems to read the files. Is there any solution, considering that program cannot modify or create files?

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VB.Net MailMessage Text Encoding?

Mar 8 10 at 21:20

I have an ASP.Net app that allows a user to write text into a Telerik RadEditor control and then send an email.

For some reason I'm sometimes getting strange characters showing up in the email that is generated.

For example if I put the word Test's into the RadEditor box and send it... the email shows up with the text changed to: Test’s.

It seems as though the ' character was used in place of ' because if I use the later, the text would show up just fine. If I pull up the saved record within the ASP.Net apps interface it looks just fine. It also appears just fine when I view the text within the recorded of the MS SQL table it was stored in.

I'm using MailMessage to create the email. I've check the string being sent at the point just before I use SmtpClient to send the message and it looks just fine at his point. Once the email message shows up however I get the strange text (Test’s).

I'm guessing that I have an encode/decoding issue but I'm not sure how I would go about fixing this.

Continued--->

I have tried to add it to the constructor of my email class with/without mybase but that had no effect.

Public Sub New(ByVal EmailDate As DateTime, ByVal LogoPath As String)
MyBase.New()
MyBase.BodyEncoding = Encoding.GetEncoding("iso-8859-1")
'BodyEncoding = Encoding.GetEncoding("iso-8859-1")
Me.EmailDate = EmailDate
Me.LogoPath = LogoPath
End Sub

I also tried adding it to the code behind of the form that calls the email class just before I create a new SmtpClient but that did not seem to be correct either.

Try
returnEmail.BodyEncoding = Encoding.GetEncoding("iso-8859-1")
Dim smtpCli As New SmtpClient
smtpCli.Send(returnEmail)
Catch ex As Exception
ScriptManager.RegisterStartupScript(Me, Me.GetType, "smtpError", "alert('There was an error sending the email:
* " & ex.Message & "');", True)
End Try

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MVC :: Textboxfor Not Encoding Properly?

Dec 02, 2009 08:34 AM

While trying to figure out if textboxfor, displayfor etc. html encoded , I ran into what I think is a bug. I have a form with the following on it:

[Code]....

This produces the following output:

[Code]....

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IIS7 Affects The Encoding?

Feb 21 at 15:11

I have a website on live server, and I have a the same website on local machine. both using the same database. Some links are in Arabic.

The links are ok on live server, but it is corruptted on local machine.

Both Live server and local machione are hosting the website using IIS 7.

I think that the only chance is related to IIS configuration but how??

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Web Forms :: .Net 4.0 Attributes.Add Encoding Bug?

May 04, 2010 10:20 PM

.Net 4.0 is encoding values when using Attributes.Add. In previous versions it didn't. With the new behaviour it is no longer possible to write attributes containing single quotes.Here's an example.

<asp:TextBox ID="txtTest" runat="server" />
txtTest.Attributes.Add("onkeyup", "keyuphandler('hello')");

With the application pool framework version set to 2.0 it produces the desired result:

<input name="txtTest"
type="text" id="txtTest"
onkeyup="keyuphandler('hello')" />

With it set to 4.0 it produces an undesirable result:

<input name="txtTest"
type="text" id="txtTest"
onkeyup="keyuphandler('hello')" />

.Net 4.0 needs to be fixed to allow the developer to write attribute values containing single quotes.

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Encoding HTML In Repeater?

Dec 22 10 at 20:57

I have an ASP.NET repeater pulling comment data from a database. In my ItemTemplate I placed some Label server controls bound to the fields (username of poster, date, and post text), but apparently Label does not run the data through HtmlEncode before displaying it. Is there another control I should use? How should I display HTML-encoded data from a repeater?

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.NET Encoding Page Routes??

Jan 28 at 19:36

I am using .NET Page Routing (not MVC) to get pretty URLs (or at least removing the file extensions) on my site.On my search page, when a user searches for "stuff" it redirects then to /search/stuff for the results. However when I put in something like "stuff yes:" it gives me a HTTP 400 Bad Request Error.

I tried using javascript to encode the search value before being submitted, and confirmed that "stuff yes:" was converted to "staff%20yes%3A", yet when it performs the routing redirect, in the URL it shows "staff%20yes:" and causes the bad request. Why is it not saving the encoding for the typically illegal characters and how can I make it so?

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GridView And Html Encoding?

Feb 22 at 15:15

I've recently upgraded a client's web site to .NET 4 and we've found out during the process that now GridView column values are automatically HTML encoded.

They have wide use of HTML strings in their code so we must turn that off. I know one solution would go over each column and add HtmlEncode="false". My question is - is there a way to set this to be the default for all GridView columns in this application?

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Detect Encoding Of Request Data

Aug 18, 2008 03:40 PM

I have an encoding problem. This problem evolves around national characters like ÅÄÖ and asian and russian characters. I have a page which takes a form post and should store the information inside a database. The problem is that I wont be creating the HTML page with the form myself, that is up to the customer, so depending on whether they save the file as UTF-8 or ISO-8859-1 the data will be stored correct or with ? or �-signs. If I debug, the request object is filled with /ufffd (i guesss its some URL encoding) characters.

If I change the web.config's globalization tag to match the HTML file's encoding then it works fine, but when a HTML-file with ISO-8859-1 posts a form to my site and the globalization is set to UTF-8 then the Request.Form is again filled with /ufffd characters
(which by the way looks like a).

So the question is: Is there a way to detect encoding of the incoming post data and then convert it to UTF-8 to save it to the database (which is UTF-8) before it's corrupted by IIS (?). I have found some Encoding detection tools but when I try to detect the request form data it is already corrupt ( å = ufffd )

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Web Forms :: Form Post Encoding?

Dec 27, 2010 12:28 PM

Our problem is the following:

We have a website that processing products from various web shops! Users of these web shops can send products for our site what will store these products in our database. Users are sending in products through the post method of the form, and within the form the data is in hidden imput fields! Our site using UTF-8 charset, and this service is working like a charm together with other pages that has utf8 chaset too. The problem comes when someone using our service from a site that has other charset then utf8, for example: iso-8859-2.This case the special hungarian characters, like "íéáűőúöüó" are replaced with a '�' character!We have tried to convert the incoming string on server side but that case the '�' has been replaced by '?'. - still not acceptable :)

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Encoding Viewstate - Meaning - Encrypt?

Feb 21 10 at 8:18

What is ViewState? How is it encoded? Is it encrypted? Who uses ViewState?

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Web Forms :: How To Do Form Redirect And Encoding

Feb 25, 2010 01:34 AM

I have a browser-like software application that logs in to my asp.net site through the login control. Depending on the user info used, the application gets redirected to a text file in the server. The content of the file is then displayed in the application.

The files are created using vb.net streamwriter createtext.

I can get the content of the file correctly the first time the application logs in to the website, but the the 2nd and succeeding attemps results in garbage data (different encoding maybe?). I didn't get this problem when I was hositng the asp.net site locally using (IIS 5.1) - the site is currently hosted using II 6 remotely. what could be wrong? Could it be because I don't log-out of the site?

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Web Forms :: Accent Asp Classic - Encoding

Feb 02, 2011 07:15 PM

In my asp.net file I have the following form with data

[Code]....

So on my login.asp why I see frÃdÃric instead of frédéric How do I encode it?

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Encoding Base64 In Java And Decoding In C#

Aug 4 10 at 22:02

I have to send a file to my webservice, but the webservice assumes the file (byte Array) as a base64Binary.

Before the encoding, the byteArrayFile is saved on disk as a regular File. (I'm doing it just for testing)

So, in my Java client for webservice, I'm sending the information this way:

String file = new sun.misc.BASE64Encoder().encode(byteArrayFile);
port.sendFileToWebService(file);


The webservice have to decode the information and save the received file on disk.

[code]....

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Encoding Mailmessage / Showing Characters?

Jan 15, 2010 02:47 AM

I have problems with encoding when sending mail using mailmessage object. it shows characters: ????

here is code:

[Code]....

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