.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

How to count number of characters in a textbox?

Posted By:      Posted Date: September 18, 2010    Points: 0   Category :ASP.Net
On my current form I have it validating a Canadian Postal Address (xxx xxx). The space is optional but if the user does not use a space, then once the validation passes it will insert one. How can I count the first 3 characters of the textbox, insert a space, then add the rest of the characters?Thank you

View Complete Post

More Related Resource Links

Cannot count number of checked items using jQuery

Hello,Using Microsoft built-in jquery files, when counting numbers of checked checkbox, the jquery-1.4.2.min.js cannot count the correct result ,however, the version jquery-1.3.2.min.js gives out the correct one, why?            $("#check").click(function () {                var nameSports = new Array();                var i = 0;                $('input[name=selector]:checked').each(function () {                    nameSports[i] = jQuery(this).val();                    i += 1;                });                if (loopCounter != 0) {                    alert(i);                }  

How to tell repeater to wrap text after certain number of characters for a particular column ?

I have a column in my repeater which allows as many as 255 characters and causes the page contents pushed away to the right if any of the record has all 255 characters in that column. How can I tell it to wrap the text after 50 characters ?Thanks,

Writing French accent characters in ASP .NET Textbox

How to write French accent characters such as - é - in ASP/HTML text box? I can copy and paste it in the text box like I did now - so there is nothing wrong with the encoding - but the problem is how to type it (write it!).I also know that é in HTML mean é but cant know how this may help!Appreciate your help! Thanks,

Format phone number in asp.net textbox control

Hi,  I have a <asp:textbox> control, I want to display text as a phone number format like phone number mask. Anybody can help on this. Thanks in advance.

Count of number of times the document is downloaded from document library

Hi All, I am working on sharepoint 2007.  My requirement is: I need to take the count of number of times the document is downloaded from document library. I used log report which doesn't solved my purpose. Any Idea how can we acheive this ?   Regards

Textbox error count is not member of system Array

HiI am trying to measure the number of lines in a textbox using Dim pos As Integer = tags.Lines.Count And I am getting count is not member of system Array which is wired as the same textbox in a different application returns no such error. Any ideas what is wrong is this some kind of Studio bug?

GridView crashes when user enters html open "<" or close ">" characters in a textbox

My GridView is bound to a sql data source and allows editing of fields. Coding is in C# and JavaScript. Using Visual Studio 2008 in test mode, if I enter a less-than "<" or greater-than ">" character in a GridView textbox an error is immediately thrown upon pressing enter: "Microsoft Visual StudioMirosoft JScript runtime error:Sys.WebForms.PageRequestManagerServerErrorException: An unknown erroroccurred while processing the request on the server. The status dode returnedfrom the server was: 500"When the < or > is entered in production, the page aborts and loads the application start page. I need to be able to catch and replace those characters BEFORE the error is thrown. I've tried hooking OnTextChange code to the textboxes, but the error is thrown as soon as I press enter...the OnTextChange code never runs. Any help will be greatly appreciated.

Calculating number of spaces between characters


Hi all,

      I need to calculate the number of free spaces between two characters.Consider the following Example


string str = "This is       the   sample" ;

I need to calculate the spaces between "This" and "is"

als find the spaces between "is" and "the"


How to find it???...

Membership.GeneratePassword, Number of Non-Alpha numeric characters



I am using ASP.NET 2.0, SqlMembershipProvider. In web.config, the min password length is set to 10 and minRequiredNonAlphanumericCharacters is set to 0.

I want to generate random passwords that only contain alpha-numeric characters. I have tried Membership.GeneratePassword(10, 0), but the resulting passwords still contain punctuation marks.

What am I doing wrong?



extracting last four characters of a text column and storing it in a number column



is there a way to do the above, for example...I have a text column, Column A containing "172671-08-7892", I need 7892 to be extracted to another column of the type number, from there I need to divide by 2. If the remainder is 0, Column C will be updated as Female, if the remainde is 1, Column C will be updated as Male

How to count characters in a string, by type


Say I have a string in a text box like


I wish to count the number of pipes or '|'.

How can I do this with js ???

count number of files after uploading


Hello, im hope i can make sense to this post cause i dont have an idea where to begin :-) I have some files upload code so the user can upload files to the server (it can be 1 or 5 or 20 files). the code is working fine, and the files uploading to the folder on the server. The problem is, that after the files uploads i need to display to the user some textboxes to every file (like: number of copies, if its color or b/w, the print size etc). is there some way, after the files is uploaded, to show the user the name of the files and for each file name to display some textboxes (like: to count the number of files and then display the names and few same textboxes for each file), thanks

Count the number of users per web page


Hello everyone,

I have a website that has 10 aspx pages in it, and I'm trying to count how many users are on any one page at a time, and display that number on the web page.  I have set it up to use an Application object ("TotalViewers"), and initialize it to 0 in the Application_Start event handler of the global.asax file.  My reasoning (probably way off base) is to increment the count on each page load, and then decrement the count on each page unload.  The increment part works ok, but when I add the code in the page unload event handler to decrement, it seems that Unload happens before the Page is presented to the client, so the  value always stays the same (adds one in page load, subtracts one in page unload).

How else  can I track number of users on each page?  (simply, becuase I am still a beginner).  I have already done some google searching and haven't come up with anything useful. 

All my pages are being navigated via a TreeView control.

Thank you,





Sort query results by the number of characters matched



I have a query that takes a multi-word search string and parses it to spit out a LIKE (with AND or OR) condition that I then insert into my dynamic query.

Example of my parsing:

    'cheese chocolate cake'))),
                                ' ', ' þ')
                                , 'þ ',
                                    ''), ' þ'
                    , 'þ'),
                    '%'' OR CakeName LIKE ''%') + '%'')' 

Say for example that a user searches for the string "cheese chocolate cake". My parsing would result in the following string:

(c.CakeName LIKE '%CHEESE%' 
OR CakeName LIKE '%CAKE%')

What I wan to do is sort the results based on the number of characters that were actually matched. So, if c.CakeName contained the following:


  • Cheese Cake
  • Chocolate Cake
  • Chocolate Cheese Cake
  • Lemon Cake

The results would be sorted thusly:

  1. Chocolate Cheese Cake
  2. Chocolate Cake
  3. Cheese Cake
  4. Lemon Cake

Count gives me the same answer regardless of the number of rows


I always get a result of zero from the following code sequence even as the row count changes and I just do not see what the error in my syntax is.




supercount As Integer

supercount = 0


Dim sqlkit As String

sqlkit =

How to make number of columns of Gridview depends on a textbox value?


I have a Gridview with 12 columns, Jan, Feb...Dec.
I have a textbox value that could be 1, 2,...12

I want if textbox value is 7, then column Aug-Dec in Gridview is editable when in update mode and the column in Jan-Jul is not updatable (eg make it label instead of textbox).

How can I do this ?


Limit number of characters in the view field



I wonder if I can limit number of characters that are being displayed in the view.  For example, one of the columns sometimes has very long description.  I want people to see only 300 characters, and if they want to read more, they have to click on the link to go to details.

Is it possible?

Thank you.

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend