Solution?
On code behind register the linkbutton inside the repeater for Asynchronous postback.
Like this
foreach (RepeaterItem ri in rpt.Items)
{
if (ri.ItemType == ListItemType.Item || ri.ItemType == ListItemType.AlternatingItem)
{
LinkButton lb = (LinkButton)ri.FindControl("lb");
ScriptManager1.RegisterAsyncPostBackControl(lb);
}
}

Read the original article at Webcosmo Webmaster Forum http://www.webcosmoforums.com/asp/21403-linkbutton-inside-repeater-updatepanel-causes-full-postback-asp-net.html

To fix this issue you need to rename the conflicting classes.

To find out the conflicting classes follow these steps:

- From Visual Studio Tools Menu Click Options.
- Expand Projects and Solutions
- Click on Build and Run
- From the dropdown “MSBuild Project Build Output Verbosity” select Diagnostic
- Click on OK to save
- Now build your project using the Web Deployment Project
- Now wait for the project build to fail.
- From the Visual Studio View Menu click on Output You will see where the duplicates on output when it fails to build. Fix the duplicates.
- Build again.

From Webcosmo Webmaster Forum http://www.webcosmoforums.com/asp/21401-aspnet_merge-exe-exited-code-1-a.html

2. Click on the + next to your server name to expand and then click on Application Pools.

3. Locate the application pool for the website you are changing asp.net for. Right click on the application pool and click on Basic Settings.

4. From the drop down menu under .NET Framework Version choose the version of asp.net you wish the site to run on. If asp.net version you wish to use does not appear on the list, you need to install that .net version first. Just Google the .net download, you would find the link at Microsoft for download.

From Webcosmo Webmaster Forum http://www.webcosmoforums.com/windows-server/21310-how-change-asp-net-version-iis-7-a.html

One of the problems was with custom controls.
Here is the sample code in C# of a custom control I used for that project.

namespace CustomControls
{
public class MyTextArea : TextBox
{
//———-code here
}
}

On web.cinfig I added

On a page I use the control like this:

It compiles fine without any error. However when I view the page on browser I get the error:
Unknown Server Tag cc:MyTextArea

Note that this code worked fine in both visual studio 2005, and visual studio 2008.

Solution:
Apparently I would need to add the assembly reference on web.config

From Webcosmo Webmaster Forum http://www.webcosmoforums.com/asp/21267-unknown-server-tag-custom-control-visual-studio-2010-a.html

In IIS you have to add these MIME types.

.xaml application/xaml+xml
.xap application/x-silverlight-app
.xbap application/x-ms-xbap

To add the MIME types to IIS6:

1. Choose the Virtual Directory or Default Web Site in IIS
2. Open the context menu and choose “Properties”
3. Select the “HTTP-Headers” tab
4. Click the button labeled “File Types…” in MIME Map section
5. Choose “New Type” and type the extension from above into the extension field and the application type into the MIME type field.
6. After adding all 3, click “OK” then click “Apply” on the main menu. You’re done. No restart needed.

In more recent versions of IIS, process is little different, but I am sure you got the idea how to do it.

From Webcosmo Webmaster Forum http://www.webcosmoforums.com/asp/21242-unhandled-error-silverlight-application-code-2104-category-initialize-silverlight-iis.html

This code sample check the file type if its an image. It can be altered for other file types as well. This example code is in C#.
HttpPostedFile myPostedFile=fileUpload.PostedFile;
if(myPostedFile!=null && myPostedFile.ContentLength>0)
{
FileInfo finfo = new FileInfo(myPostedFile.FileName);
string fileExtension = finfo.Extension.ToLower();
if (fileExtension != ".gif" && fileExtension != ".jpg" && fileExtension != ".jpeg" && fileExtension != ".png")
{
//show error message
return;
}
}

From Webcosmo Webmaster Forum http://www.webcosmoforums.com/asp/21239-how-check-uploaded-file-extension-asp-net.html

It will show you the version of silverlight installed in your computer or if not it will show you link to install it.

From Webcosmo Webmaster Forum http://www.webcosmoforums.com/asp/21219-know-version-silverlight-installed-your-computer.html

ad pepper
Ad pepper can provide exclusive or non-exclusive representation for your ad inventory. They offer many types of CPM ads including graphic, contextual, and integrated text links.
ad pepper media – the powerful network.

AdBrite
AdBrite offers CPC, CPA, and CPM in a variety of formats including text ads, inline ads, banners, video, full page ads, ads in photos. You can set your own price and run ads from another ad network if AdBrite can’t supply an advertiser at your asking price.
AdBrite: The Internet’s Ad Marketplace

AdDynamyx
AdDynamyx offers CPM and CPC graphic ads featuring Fortune 500 Advertisers. They serve standard ad units as well as various types of pop unders and floating ads.
https://www.addynamix.com/

After you get the wholesale price list from your prospective supplier, find out how much others are selling for that exact same item.

Some good places to check pricing:

• Ebay.com
• Amazon.com
• Overstock.com
• Walmart.com

Many people selling on these sites (except walmart) are suppliers. Since its very competitive there prices are lower there. You really have to make sure you are able to compete with those sellers there.

Your sell price should consist of these parts:

• wholesale price
• shipping cost (if you offer free shipping)
• listing/success fees (if you sale on ebay/amazon etc where you have to pay for listing/success)
• Operational costs (this could be hosting, office supplies etc)
• Marketing expenses (marketing costs like ppc etc)

Based on this see how many percentage of profit you can make per product. If you make less then 25% profit, I would strongly recommend looking for some other supplier.

Source:  WebcosmoForums.com Webmaster Forum

Here is a short list of some major places you can sell your products. Remember this is not an elaborated talk on them.

Your E-Commerce Site
Although you can control the shopping experience and other aspects of your business, its really tough to market and make money. Specially it takes quite a bit of time and effort to get people come to your site and get used to shopping.

EBay
Largest marketplace of all. Your products would be visible to a huge ebay audience.

Amazon
Amazon is a great marketplace. Although not as big as eBay, it still a giant marketplace.

Google Base
Its free to use. You can upload your products and make them indexed on Google for people to search.

Shopping Comparison Sites
Most of them charge money to list products. Here are some major ones to mention:

• Shopzilla
• Bizrate
• Shopping.com
• Ciao
• Price Savvy
• Next Tag
• Kelkoo
• Price Grabber
• Price Runner