Controls :: Enable Background Noise In Mondor Captcha
Mar 16, 2013
How to implement captcha in ASP.NET. I've a strange scenario where the captcha letter is showing correctly but the background image(the black dots) is not displaying.I checked it by using firebug in firefox,to my surprise i found that an additional div(which i have not written) is enclosing the captcha,and its background color is set to white.This is how i placed the captcha inside the form tag in aspx page
<div id="divCaptcha">
<cc1:CaptchaControl ID="Captcha1" runat="server" CaptchaBackgroundNoise="none" CaptchaLength="5"
CaptchaWidth="200" CaptchaLineNoise="none" CaptchaMinTimeout="5"
CaptchaMaxTimeout="240" FontColor="#529E00" CaptchaHeight="60"/> </div>
This is what i got when i checked using the firebug
<div id="divCaptcha">
<div style="background-color:White;">
<img width="200" height="60" border="0" src="CaptchaImage.axd?guid=1e625862-4447-41ff-a6a5-86ad1e95261a">
</div></div>
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Sep 15, 2012
Code is too good. but its working only on local host.
When I upload my files on server,it didn't show captcha image...
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Jul 18, 2012
I used ur captcha code of asp.net in my project. and i want to regenerate the captcha on the button click so how can i do that.
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Jan 28, 2013
I m using your Captcha Code [URL]. This code is working at local system but not working on Server Side. Captcha Image is not Displaying any Code.
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Feb 25, 2016
I 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.
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Mar 11, 2010
I created a simple search form which populates a gridview from sql server. I use 'contains' on a varchar(max) field which has a full text index. I find if I do a search for "Mexico Argentina", I get multiple results, which is good.One thing my sql server stored procedure is doing is inserting the word 'AND' between words. I do this because I want all words to be found. So if the user inputs "Mexico Argentina", I am converting that to "Mexico AND Argentina"But if I have even one 'noise word' in the search string, I get no results at all. For instance, there might be a sentence in my database table saying "I prefer Mexico to Argentina" but if I put that sentence in, I get no results at all. The database is seeing my converted string:I AND prefer AND Mexico AND to AND ArgentinaAnd finds nothing.I also have another form, which does a more advanced search that allows 'exact phrase'. If the user chooses 'exact phrase', then I don't insert AND anywhere. Instead, I surround his phrase with 4 apostrophes - 2 before the phrase, and 2 after.So now the database sees:' ' I prefer Mexico to Argentina ' ' (I've put a space between apostrophes here to make it clearer to view.Now I not only get no results, I get an error message.
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Jul 3, 2012
I have used your mathematical captcha in my project but it is not working on all browsers.if I open the page in one browser & then copy the aaaurl in other browser the other browser does not show me the captcha.
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May 21, 2010
I WANT to make a signup with the help of Detailview....I also want to add a captcha control in detail view to stop spamming...
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Apr 17, 2012
[URL]
I have implemented as writeen in the aritcle but the captcha image is not being shown when I run the application.why
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Jul 23, 2012
Despite inputting the wrong answer for the captcha control, it did not display an error message..
protected void CreateUserWizard1_CreatedUser(object sender, EventArgs e)
{
MSCaptcha.CaptchaControl Captcha1 = (CreateUserWizardStep1.ContentTemplateContainer.FindControl("Captcha1") as MSCaptcha.CaptchaControl);
TextBox txtCaptcha = (TextBox)CreateUserWizardStep1.ContentTemplateContainer.FindControl("txtCaptcha");
Captcha1.ValidateCaptcha(txtCaptcha.Text.Trim());
[Code] .....
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Nov 30, 2012
I used numeric captcha in my website
[URL]
It worked correctly in Localhost but when I upload my site on host when I open page that I used captcha for it, it didn't show captcha image so I can't enter captcha in textbox
I use IIS6 but i try your code but again it didn't show any image
see here in code is Path="Image.ashx" but i didn't have any file like that im my website? what is that?
when i see view source for captcha is below code
<img alt = 'Captcha' src = '/Image.ashx?key=potezmL9FvScT6cn0%2b2Jnnj3liguFvrFBT38H9ZMCHA%3d&color=%23000000' align = 'NotSet' /><input type = 'hidden' name = 'ASPNET_Captcha1_Expression' value = 'LL/VwR57t2e4qP5UmLxEDA==' /></span>
and when i click on SRC below error occure
The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly. Requested URL: /Image.ashx
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272
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I have the following code snippet :
[Code]....
With code behind :[Code]....
Why do I have to press the "Enable" button twice to enable a disabled ComboBox ?
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i want to add captcha in my website.
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I searched a little on the site but i don't see something approved.What i basically want is a simple captcha control on my page.
Will this do?
http://www.codeproject.com/KB/custom...haControl.aspx
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