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  1. Using MDF File database in Visual Studio 2010

    To test a web app I am working on, I created a database using Visual Studio and placed it in the folder App_Data, where an .mdf file was created as part of adding the database.

    I tried to setup a...
  2. Checkboxes

    form checkboxes are notorius for not have a value unless they are actually checked, which is something I do not understand very much. One way to get around this issue is to make default values for...
  3. Using document.getElementById will ensure that...

    Using document.getElementById will ensure that your javascript works in most web browsers such as IE, Firefox, Chrome, and Safari. It is the best way to go if you want javascript access to an HTML...
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    Lightbox issue

    I am using the fancybox lightbox plugin, which is available at the following website:

    www.fancybox.net

    But also I tried to use a different lightbox available at the following link:
    ...
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    488

    Question about JQuery Lightbox

    Hello,

    I am currently in the process of implementing a Javascript Jquery lightbox for images on a website I am working on.

    I was able to get the lightbox to work, however, the images in the...
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    CSS Multiple Elements

    In Cascading Style Sheets (CSS) you can apply the same style to multiple elements which is very handy when doing work on a large website or web application. Also you can designate that a certain...
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    TABLE Tags

    Table tags do not go in the head section, they only go in the body section of the HTML in the webpage.

    Do you have a link to your page on the internet where I can see your webpage?

    If I can...
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    977

    Tables were used in the first versions of HTML...

    Tables were used in the first versions of HTML and were used to line up different content on the webpage. But over the years HTML tables have been slowly replaced with DIVS and CSS. Tables are more...
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    CSS Issues DIV with Images

    If your div containing the images is wider than the divs that contain it, it may cause your container parent divs to expand to the same width as the div containing the images. Basically pushing them...
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    977

    Layout ISSUES with HTML

    What platform are you using for your website? IS it a static content website with HTML only?

    Or is it a dynamic content website being powered by a server side language such as ColdFusion, PHP, or...
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    Looking at your PHP SQL Statement, it looks like...

    Looking at your PHP SQL Statement, it looks like you have an open single quote but no close single quote, around your $userid[b] variables, that will definitely cause an error when trying to run this...
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    1,235

    Replacing HTML tables with CSS

    its good that you are trying to learn how to replace HTML tables with CSS and DIVS, which gives you alot more options. Tables will limit you in what you can do and require more code than CSS and a...
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    Some Feedback on Free Web Hosting

    There are some good deals on Free webhosting, however, you have to keep the following in mind, especially if your doing web applications instead of static content websites.

    Usually a free hosting...
  14. Better way to reference value of the dropdown

    There is a better way to reference the selected option of the select control (drop down list). Use (this.value) instead of (this.options[selected].index). Also you should use (location.href) instead...
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    Sometimes issues with FLOAT:LEFT; and FLOAT:RIGHT;

    Now sure if this will be a help for you, but in web application development if you have several divs that are using float:left; or float:right you can sometimes run into issues.

    If you have a div...
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    3,704

    Possible Solution To Web CSS Issue

    When doing web applications, When you are using divs within a table they should always be enclosed with a table cell <td></td>. If the div is outside of those within the table, the display:none; CSS...
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    Try adding a submit button to your form

    One thing you might try is to use a submit button instead of the Javascript onchange attribute to submit your form. Like the following:

    <form enctype="multipart/form-data"...
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    2,816

    Validating Forms with Javascript

    I see that you are passing the form object to your javascript, sometimes this causes problems in Firefox but will work fine in Internet Explorer, a good way to get around this is to use the DOM and...
  19. I have not validated this yet, but I have similar...

    I have not validated this yet, but I have similar javascripts on my web applications that set the text content of a div, using the innerHTML property. Usually you have to use html tags to format the...
  20. Suggestion for select form elements

    I have a suggestion for your dropdown select form element, a good best practice for websites and web applications is to make sure that you have a default option with a null value as the first option...
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    helpful option for older IE versions

    One thing you can do is conditionally determine which Javascript you are going to run by using conditional statements in your html like the following:

    <!--[if IE 6]>
    <script language="javascript"...
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    Depends on what your willing to setup

    There are things to consider when choosing a platform for your webhosting.

    ASP .NET is very good, however, to do it effectively you have to have Microsoft IDE Visual Studio, which comes with a...
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    Prevent double submit of form

    I am not sure how to prevent a user from submitting the form by refreshing the page that is on the form.

    One thing you may want to do is add some code to prevent a double submit of the same data....
  24. Thread: Site Hacked

    by Michael_G
    Replies
    5
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    1,704

    Sounds like SQL Injection Attack

    This sounds like a SQL Injection attack, which is a vulnerability that can occur in web applications, one of the best ways to prevent a SQL injection attack is to make sure all numeric variables used...
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    Possible solution to issue

    One possible solution for this problem is to divide your table rows into smaller blocks and then perform the random query between the low and high index of each block of rows.

    Use a SELECT MAX(id)...
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