|
I have not used that specific captcha technique I mentioned, but I do use ImageMagick (IM) with ASP.NET. I have a pretty basic article on COde Project about generating previews from uploaded images with IM, Using ImageMagick to Create Previews and Thumbnails from Uploaded Images[^]. This is similar to what you are trying to do by creating a dynamic image and return it to the browser. The key method is CallImageMagick(string fileArgs). You pass your argument, such as the captcha command, which defines the distortions and the output path of the file. The random string used to create the captcha using IM would be stored and used to verify the user response to the captcha challenge.
IM is easy to download and install. The latest update which I just installed on our server was "ImageMagick-6.6.0-7-Q16-windows-dll.exe". Make sure to check the last install option - "Install ImageMagickObject OLE Control...", so that MagickCMD.exe will be installed. You will need to provide the path to this file in your code; see my article.
There are several other good articles on CodeProject about using IM with ASP.NET. That is where I learned about it.
Regards,
Gary
|
|
|
|
|
i've databound a gridview through configure datasource wizard....but i'm unable to re-bind it through that wizard only.....can anyone tell me how can we rebind gridview using configure datasource wizard or using any other method except writing code in .cs file???
|
|
|
|
|
Please help me with this assignment.
Use ASP.NET to write a web page with a form for ordering pizza. When loaded, the page should appear as shown in appendix 1. To avoid clutter, use only 3 options for each select element (for example, use only months 07, 08, and 09 for the expiry date). Be sure to preserve alignment of items. The Submit button sends all the user inputs to URL http://www.pizzapronto.com/orders. The Reset button resets the form.
Appendix 1
Your browser may not support display of this image.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<!— Put your code here ………… -->
</html>
|
|
|
|
|
We're not here to do your homework for you. If you can't even manage this then you've picked the wrong course/degree/career.
me, me, me
"The dinosaurs became extinct because they didn't have a space program. And if we become extinct because we don't have a space program, it'll serve us right!"
Larry Niven
|
|
|
|
|
www.rentacoder.com, this is what you want
Manas Bhardwaj
Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.
|
|
|
|
|
hi all......
i've created a page and want user to select some buttons....now i want that if one user selects some of the buttons that those buttons should be disabled for rest of the users till the person clicks on submit buuton on the next page.....if he cancels his selection from there than those buttons should become enabled for other users.
can anyone guide me what to do???
|
|
|
|
|
hi iam using asp.net with c#
in my gridview 1st column is checkbox control
select productname price quantity total
() rose 124 6 124*6
() biscuits 345 89 345*89
() choclate 670 45 670*45
=======
when user click next button then which ever row is checked then data is transfer to other page and displayed in gridview
please can you give some example for this ...
|
|
|
|
|
Hi, you can create a temp table to insert the Selected Rows and when you redirect to the other page
select thoses rows for Db and put them in the datatable to be a datasource for the GridView.
Good luck 
|
|
|
|
|
You can maintain the data in DataTable or Collection. Assign the values to the Session object and retrieve it in the next page.
|
|
|
|
|
hi iam using asp.net with c#
in my gridview 1st column is checkbox
select productname price quantity total
() rose 124 6 124*6
() biscuits 345 89 345*89
() choclate 670 45 670*45
=======
67000
========
when user enters quantity automatically in total colum total is displayed
please can you give some example for this ...
|
|
|
|
|
Uhm.. maybe you can calculate the Total in advanced before you databind to the Grid View.
Or you can use a nested foreach loop for each row and cell and extract the value then do the calculations and assign that in the Total Column.
|
|
|
|
|
You could do it on the client-side with jQuery and save a lot of server-side processing and roundtrips. It would be easy to attach an event listener to the checkbox and total all the item's subtotals, etc. Here is a link to an example that updates the total the items in the order table as you add and remove items. It doesn't use Web Forms, but just as easily could: Interactive Form Functionality on the Client-Side Using jQuery[^]. There is a working example at http://altweb.lazerinc.com/jquery/order_dev.htm[^].
Regards,
Gary
modified on Monday, April 5, 2010 9:09 AM
|
|
|
|
|
I'm using Forms Authentication in my website and i have denied access to anonymous users to a certain folder in the website. I'm using a File Upload in the restricted area and after the user logs in and tries to upload any file to the server, he user is always automatically redirected to the login page instead of uploading the file!!!!
Any ideas how i can avoid this and allow logged in users to upload files directly??!!! Any idea why this happens in the first place?!
|
|
|
|
|
Just noticed another surprise!! i added login status and login name controls to the login page and i found out that the user is still logged in while the page is redirected to the login!!!
Also noted that the return URl points to the fileupload page. so anybody knows what could possibly be going wrong?!!
|
|
|
|
|
I wanna enable paging repeater control. hOw do i do tht..?
|
|
|
|
|
|
I m using SQldatasource control to get the database table.. so would require a code accordingly
|
|
|
|
|
|
Dear All,
I have a query in SQL 2005 which takes some time to complete during query executation I want to show the progress for the user in asp.net application.
I can show Progress bar and I can run the progress of query in the background using thread but the problem exists how can i show the progress based on the query execuation?
any ideas? "I think the better approach would be to show seperate dialogbox (Window) from javascript and show the progress at that window."
Abdul Rahaman Hamidy
Database Developer
Kabul, Afghanistan
|
|
|
|
|
Hi Abdul
how long is "takes some time" a sec, a 30 sec ?
if its a 5 sec max ill go for an animated gif file here
if not i wont let the user to wait to much for a process
do you have to wait for the query to execute ?
MyDevBank.com
|
|
|
|
|
Thanks for reply, well the progress is different its based on column selection, the much the colums the much time it takes.It takes less and more than 30 sec in some circumstances.
Abdul Rahaman Hamidy
Database Developer
Kabul, Afghanistan
|
|
|
|
|
The challenge of a progress bar as you noted, server-or client-side, is difficulty of what to base the increment on during the query. Building on the suggestion of the first reply, how an animated gif image that symbolizes the query is running, combined with a counter that increments in seconds as the process running. Also, a message that warns searches could take from X - Y seconds, just so they don't think it's locked up. Those three elements might make the wait more bearable for the user.
Regards,
Gary
|
|
|
|
|
Thanks for the reply, but at least there should be something which i should show for the user, maybe i should an animated GIF till recieving the result from backend server.
any ideas for animated GIF?
Abdul Rahaman Hamidy
Database Developer
Kabul, Afghanistan
|
|
|
|
|
|
hi Im having 2 repeater controls each of 3 text boxes created dynamiaclly... and a button to submit values of text boxs in both repeaters to db.
keeping the 1st textbox value empty and if other two textboxs are filled and submitted it should show some error message.. this is same for both repeaters how can i do that....
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
