Prevent Special Characters In A TextBox?
Aug 31, 2010I want to prevent users from entering url's (like a href="") in a TextBox.
I want to use a regular expression validator but no idea what to write?
How can I do it?
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Web Forms :: Special Characters Validation On TextBox
Jul 22, 2010I have few Text Box controls on my webform on which I would like to do some validation. Validation: Controls should not be allowed to accept All special characters EXCEPT ALLOW letters (incl all foreign language characters), numbers, period, comma, question mark, apostrophe, ampersand, soft parentheses & hyphen. Whats the best way to implement this & how?
View 3 RepliesWeb Forms :: Restrict Special Characters In TextBox
Dec 19, 2012I want to restrict special chars `!`~@#$%^&*()_+|-={]}[;:,.?/ without any alphabat in asp.net textbox.
View 1 RepliesSecurity :: Restrict User To Enter Special Characters In Textbox?
Mar 16, 2010I gave an option to user to change password but the text boxes are taking - / @ (special characters). How to check at runtime that user may not enter these characters?
View 21 RepliesRegular Expression (C#) Remove All The Special Characters (leaving Only Numbers) In A Phone Textbox?
Mar 8, 2010I'm wanting to remove all the special characters (leaving only numbers) in a phone textbox. Here is my current code:
Regex.Replace("(123)456-7890", "[\(\)\-\.+]", "");
Web Forms :: Construct A Regular Expression For The Password Textbox Which Shouldn't Accept Special Characters
Sep 16, 2010I need to construct a regular expression for the password textbox which shouldn't accept special characters($,@,!,etc).Even whitespaces,tabs. I tried the below this accepts special characters.
<asp:RegularExpressionValidator ID="RegEx" runat="server" ControlToValidate="Password"
ErrorMessage="Password must be atleast 8 characters and include a number,alphabets upper case and lower case.
"ToolTip="Password format is not correct"
ValidationExpression="^(?=.{8})(?=.*d)(?=.*[a-z])(?=.*[A-Z]).*$">
</asp:RegularExpressionValidator>
How To Prevent Tab Characters From Being Pasted Into A Textbox
Dec 24, 2010I'd like to have an asp.net textbox that people can paste content into and it works like notepad, i.e. no formatting or special characters will get entered. I take text and pass it to a web service which manipulates it and converts it into a tab delimited file. The problem I've experienced is sometimes people copy from MS Word and paste that content in and somehow even the tab characters etc. get passed to the web service. I run routines now to strip that information out but it would be so much easier if the textbox on the web page didn't capture anything but the text itself, i.e. visible characters (numbers, letters, punctuation).
View 3 RepliesUse Special Characters Through Javascript
Jan 13, 2011I have a comment control in vb.net, It works fine but the problem is if you use special characters like " ' ! $ * It never save the comment and through javascript error ( As i am using Ajax ) , Is there any workaround to save special characters aswell?
View 1 RepliesHow To Fix Special Characters In String
Aug 3, 2010I've got a program that in a nutshell reads values from a SQL database and writes them to a tab-delimited text file.
The issue is that some of the values in the database have special characters (TM, dash, ellipsis, etc.) When written to the text file, the formatting is lost and they come across as junk "â„ or â€" etc"
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.
Is this ASCII or UTF-8? If it's one of those how do I correct it before it's written to the text file.
Here's how I build the text file (where feedStr is a StringBuilder)
objReader = New StreamWriter(filePath)
objReader.Write(feedStr)
objReader.Close()
Special Characters In SQL-Query
Jul 21, 2010I'm fairly new to ASP.NET and have the following problem:
I add data to an Access database through a form on a aspx.-page. Now my problem is, if the user enters characters like " or & the syntax of the SQL command i send to access changes and the whole thing crashes. :-(
It should nevertheless be possible to write special characters in the Access database. How can I do that??
Seconde question:
I put a GridView under my form to display the data entries from the access database to the user. This GridView has 3 Options in every Line at the beginning (Edit, Delete and Select) by default. OK, when i klick on Delete it comes the following error message (hand-translated from german into english ;-] )
"Deleting is not suppoorted from the datasource "AccessDataSource" unless the DeleteCommand is not specified.
[NotSupportedException: Das Löschen wird von der Datenquelle "AccessDataSource2" nicht unterstützt, sofern nicht DeleteCommand angegeben wurde.]
System.Web.UI.WebControls.SqlDataSourceView.ExecuteDelete(IDictionary keys, IDictionary oldValues) +1648440
System.Web.UI.DataSourceView.Delete(IDictionary keys, IDictionary oldValues, DataSourceViewOperationCallback callback) +89
System.Web.UI.WebControls.GridView.HandleDelete(GridViewRow row, Int32 rowIndex) +714
System.Web.UI.WebControls.GridView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +869
System.Web.UI.WebControls.GridView.RaisePostBackEvent(String eventArgument) +207
System.Web.UI.WebControls.GridView.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +175
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565
The equvivalent error message appears when I klick on the "Edit"-Button...
How do I have to specified the Delete and EditCommand?
ADO.NET :: Getting Special Characters From XML Document?
Mar 3, 2011I'm using the code below to allocate tags in an XMl document into groups using the char[] alphabet below.
This works great for tags that start a-z. However I have some tags in the XML document that can start with special characters (eg 0-9, ! @ # $ & * etc)
I'd like to put them all in one group called "SP". Is there a way to do that?
[Code]....
How To Remove Special Characters From String
Feb 20, 2011i want to display values in dropdownlist using querystring[which is successfully happening] but the problem is when id passed in querystring is 7.17 then in dropdownlist it is displaying values as 7 . 1 7....but i want to display it as 7 and 17...
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)...
Web Forms :: How To Interpret Special Characters
Mar 15, 2010I have some special characters in my database and i would like to retrieve the same. eg: "FrÃdÃ" is not displaying properly on my list but it is stored correctly in database.
View 2 RepliesAsp.net - Url Rewriting, Raw Url Is Omitting Special Characters?
Mar 31, 2011I am creating a site in asp.net with URL rewriting.
My initial url is like /mypage/languagename/ASP.NET
it is working fine when I am excepting taking the language name with
HttpApplication app = (HttpApplication)sender;
app.Request.RawUrl // this is giving me ASP.NET
but when the initial URL is/mypage/languagename/C#
I am getting only C from the rawURL instead of C#.
.net - Put Escape Character Before Special Characters Using C#?
Aug 15, 2010buildLetter.Append("</head>").AppendLine();
buildLetter.Append("").AppendLine();
buildLetter.Append("<style type="text/css">").AppendLine();
Assume the above contents resides in a file. I want to write a snippet that removes any line which has empty string "" and put escape character before the middle quotations. The final output would be:
buildLetter.Append("</head>").AppendLine();
buildLetter.Append("<style type="text/css">").AppendLine();
The outer " .... " is not considered special chars. The special chars may be single quotation or double quotation. I could run it via find and replace feature of Visual Studio. However, in my case i want it to be written in c# or VB.NET
Alphabetic Filtering With Special Characters
Nov 24, 2010I have a requirment to filter out all users in the database by starting letter. so we will be having link buttons for A B C D E..... Z. If user clicks on A, all users whose name starts with A is retrieved Now the concern is, if there are users whose name starts with any special chars how they can be classified under any filters OR just copy pasting what the client asked me. In terms of filtering UTF characters, is there no way to set it up so that all 'A' (i.e. Ä, Á etc.) characters are assigned to A (i.e. some way of grouping together in an "if else" kind of rule)?
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Dec 17, 2010I've built a web application that employees sign on to and take tests, get certifications, etc. My client wants all employees set up so that their user name is their real name, in the format of "Lastname, Firstname". It doesn't look like MembershipProvider will allow commas or spaces in the user name. Am I going to have to store this in a separate column in another table, or is there a way to tell the provider to accept those characters...
View 2 RepliesParsing A String For Special Characters In C#?
Mar 6, 2011I am getting a string in the following format in the query string:
"Arnstung%20Chew(20)"
I want to convert it to just "Arnstung Chew". How do I do it?
Also how do I make sure that the user is not passing a script or anything harmful in the query string?
How To Insert String With Special Characters Into RTF
Jan 20, 2010How to programatically insert string with special characters into RTF? I have rtf template I load to string and then replace all $MY_VARIABLE$ with data. Data contains special chars like 'ąęść' and the problem is that in result file these characters are replaced with '?'. It's something wrong with encoding but what?
My code looks like:
StreamReader reader = new StreamReader("template.rtf");
StringBuilder form = new StringBuilder(reader.ReadToEnd());
// here I replace variables in rtf with data
Encoding srcEncoding = new UTF8Encoding();
Encoding dstEncoding = new ASCIIEncoding();
byte[] utf = srcEncoding.GetBytes(form.ToString());
byte[] asci = Encoding.Convert(Encoding.UTF8, Encoding.ASCII, utf);
return dstEncoding.GetString(asci);
Web Forms :: Dont Get The Special Characters In Particular Way
Jan 31, 2011I'm having an issue when requesting querystring variables in a ASP.NET C# webapplication. With special characters.I dont get the special characters in the way i want(original).Here is the code I'm playing with:
string todo = Convert.ToString(Request.QueryString["todo"]) ?? ""; string str = Convert.ToString("%E6%F8%E5%3Ftest"); Response.Write("str original=" + str); Encoding enc = Encoding.GetEncoding("ISO-8859-1"); Response.Write("<br />str decoded=" + HttpUtility.UrlDecode(str, enc)); Response.Write("<br />todo querystring=" + todo); Response.Write("<br />todo querystring decoded=" + HttpUtility.UrlDecode(todo, enc)); string t = HttpContext.Current.Request.Url.AbsoluteUri; Response.Write("<br />requested url=" + t); string[] test = t.Split('?'); foreach (string
VS 2010 - Replace Special XML Characters
Oct 27, 2011I have to replace XML characters that are being sent to me like this:
Private Balcony & Patios w/Storageto instead be this:
Private Balcony & Patios w/Storage
I want to make sure I have an exhaustive list of all possible characters, so we don't find one later after my programming change.
I was told to do these (by a developer at the client site who is passing me the xml as he gets it from the database and wants me to parse it):
replace all "&" to "&" as well as any of other 3 reserved characters:
">" to "<"
"<" to ">" and
"%" to "%"
But when I googled more infor on XML special characters, I found this list:
& &
< <
> >
" "
' '
Which says nothing about the % but mentions the quote and apostrophe.
So what is the exhaustive list?
Transform Html Input With Special Characters?
Mar 22, 2010I would like to transform an html input to xml. But the input will have as part of its content an "&", e.g. Texas A&M. But calling XslCompliledTransform.Transform(htmldocument, xmlwriter) causes an xmlexception to be thrown.
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Sep 21, 2010I am retrieving time data from database.Its in format of HRS:Min AM. (:,'')are the special charatcters. I need to show Hrs in txtHrs,Min in txtMin,Am/PM in dropdown. How can I do this?
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Jan 30, 2010I have requirement to validate special characters like (ä --> this is not a, this is a latin character).how to allow these characters using asp validator control. could you let me know about this. example: [URL] above mail is not allowing while using asp validator control how to allow latin keywords in mail validation.
View 4 RepliesAlphabetical Pager (adding Special Characters)
Oct 26, 2010I have created a Alphabetical pager from the following code and its working as intended but in only goes from A-Z.
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