how you have implemented mathematics type captcha in comments sections in URL...I like to implement this type of captcha security, its more clean and user friendly.
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how can i use CAPTCHA Image Verification in C#
View 10 Repliesanyone have link or code to create image / word verification? i want to use this on my contact form to avoid spamming and better security. i've not found anything useful on net.
View 3 RepliesI want to have the captcha image validation where users need to enter the text shown in image.
View 1 Repliesi have a image control that show Captcha...
Problem:in the Host(not local system) Captcha show only one image that created for first time,but in my local system every things is right,and captcha change for every page load...
i think image can't find server folder address and always show first produced image!!!
see code:
[Code]....
where is the problem?
notice:when i see server "Upload" folder and "AddIntuitionReflexRandom.gif" file,content change truly,but that can't show in my image.
How can I bind image control with captcha from generic handler using jquery.
View 1 RepliesI'm implementing captcha on my website like the one in [URL]. It is working fine while running on VS2008. However, not when uploaded on IIS. I think the image is being blocked by IIS.. anyone knows how to fix this?
View 1 RepliesI am using the ASPNET_Captcha control for my login page. It works fine. However when i implement the forms authentication, the catcha image does not appear.
Do i need the location section in the web.config file? If yes can you share the details for the same.
I have a web application running asp.net and SQL Server 2008.
When i run the site within VS2008, the captcha image works fine, but when i run the site via the internet i have no captcha image.
I used a custom captha inside my mvc application and it works perfectly fine in local but in production it isn't being generated. why is that?
I used the following statement for saving the image. do you think it is beacuse of that?
[Code]....
[URL]
I have implemented as writeen in the aritcle but the captcha image is not being shown when I run the application.why
captcha which supports in MVC application and allow captcha image to refresh with "Genreate new image" link.
View 5 RepliesI have issue in Mathematical captcha, its not working in IIS,Image path not getting, it shows altertext "Captcha".
View 1 RepliesI have implemented captcha control in my webpage based on the article How to implement Captcha in ASP.Net.
It is working fine when running through the VS IDE, but when i deployed the website in IIS 8 (Windows 8.1) server the captcha image does not show.
I tried this link to generate verification Image [URL] ..... It works fine.
But I'd like to put a button in page for regenerating captcha for example. When the image was unreadable for user.
So I put an updatepanel in page and this is my code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<tr> <td colspan="2">
<asp:Image ID="imCaptcha" ImageUrl="~/Captcha.ashx" runat="server" />
[Code] .....
Although the image changes but the whole page is refreshed. Whether this is due to incompatibilities httphandler and updatepanel?
Does anyone know if its possible to log someone into a site from their verification email? I don't want to take them to the login page from their email.
View 6 RepliesIs there a way to perform a mathematical equation on a field which has been EVAL'd in a gridview?
[Code]....
I have two textBox, one button and one gridview. In one texbox, I enter a value, click the button to add this entry to the gridview and the footer is computing the sum as i add more entries to the gridview.
I also have a textbox outside the gridview that will hold an amount, now I want to perform an operation like...(txtOutsideGridview - gridviewEntry1 - gridviewEntry2), and display the result of this operation inside the footer of the gridview, instead of the sum. How do I go about doing this?
So far all I have been able to do is sum up the total of entries within the Gridview, but that is not my desired operation...here is what my current code looks like
[Code]....
IS it possible to use mathematical symbols in asp.net application.
I am developing a online assessment web application. In that I need to use mathematical sysmbols as question and the user also should be able to use that symbols.
Is it possible? Is any other third party editor is required?
Can I store that symbols into MS SQL database?
I am looking into the possibility of shortening / encrypting a url which will be from 150 to 250 characters in length to maximum 12 characters using an algorithm. Initially I am doubting it's possible but I wanted to leverage the great minds of StackOverflow :)
the algorithm should be one that can be written in classic asp, sql, c#, vb, or foxpro or other language.
Is that even possible without a database centric approach?
I was reading here that AES in CFB mode, will do a stream cipher and the output length will be the same as the input length. Is there any way to shorten it even more?
I'm new to .NET and converting and proper way to convert strings to other values. Specifically, here is a situation I'm facing:
I'm returning two values from a datasource as strings. One values is a representation of a span of time, and another is a count of how many attempts to access a system took place within the span of time.
Given these parameters (for example):
Span of time: 00:01:00
Attempts: 13
I'd like to calculate a third value that shows how many seconds each attempt to connect took place during that span of time. This involves converting the time span to seconds and then dividing by attempts. Where I am getting lost is with the conversion of types. I know the span of time needs to be converted to a date, reduced to seconds, then converted to a number to be divided by the attempts field, also converted to a number.
I've been playing around with code segments like this all morning to no avail:
VBNET Code:
Dim thisTime As String = "00:01:00"
Dim thisAttempts As String = "13"
Label1.Text = thisTime
Label2.Text = thisAttempts
Label3.Text = Math.Round(Integer.Parse(Convert.ToDateTime(Label1.Text)) / Integer.Parse(Label2.Text), 2)
Any open source javascript mathematical formula editor to recommend? I want to add mathematical formula editor to my web site, so that when people submit message using text box, they can insert related mathematical formula.
BTW: I am using VSTS 2010 + C# + .Net 4.0 + ASP.Net + IIS 7.0, any such controls provided by MSFT?
I want to create an editor for mathematical and Sceintific Equations.
My clients requirement is that he wants to set the Exam for students and need an editor for all mathematical and Scientific equations.
Is it possible to perform mathematical operations within a .aspx View.? for example..lets say i have a total number of pencils of say 100. and i have 12 students on a data table with his or her name, and the number of pencils she has
Student Name: Pencil #
John 10
Sarah 12
Linus 19
But while rendering the view i want to calculate the Percentage of pencils one student possesses out of the total. (John would have 10% of the total 100 pencils)
How would i just perform this basic math operation, and encode the result into the view. I know i need to store the 100, and divide by each count of pencils for each student within the foreach loop. but i keep getting 0. This seems very elementary i know.. Help would be very appreciated. Google seems to have nothing for me.
when a user registers himself on my website i send a confirmation email to the user.when the user clicks on the link in email he is supposed to be redirected to a verified page.but instead he is redirected to the home page of the website.but when the user copy pastes the link then it is working fine.the above scenario is working fine on my local machine but not on the server.
[URL]
