User1534684113 posted
Hi bigprey,
Thanks for your post. As per this case, I am suspecting that you missed some steps. It's recommended that you follow the steps to do it again carefully:
1. Download the project, and unzip the file. In the c#->CSASPNETAJAXWebChat folder, you could see the project files, such as App_Data, Data, Logic Scripts folders .etc.
2. Follow the steps, Create an "ASP.NET Empty Web Application" in Visual Studio 2010/Visual Web Developer 2010. In this sample it is "WebChat". Right-click the App_Data directory, then you could simply copy and paste the files within the App_Data to the
new created App_Data folder.
3. Create a new directory, "Data". Right-click the directory and click Add -> New Item -> Linq to SQL classes.(If you could not find that template, please click the Data node of the tree view at the left hand.) In this sample, it is SessionDB.dbml.
4. Open the SessionDB.dbml and double-click the SessionDB.mdf, you will see the database in the Server Explorer. Expand the SessionDB.mdf, expand the Tables folder, and select the four tables, and drag them all to the stage of the SessionDB.dbml.
5. Create a new directory, "Logic". then you could simply copy and paste the files from the corresponding folder to it.
6. Create a new directory, "Services". then you could simply copy and paste the files from the corresponding folder to it.
7. Create a new directory, "Scripts". then you could simply copy and paste the files from the corresponding folder to it.
8. Copy the Default.aspx, Default.aspx.cs and Default.aspx.designer.cs to the root directory of the project.
9. Copy the ChatBox.aspx to the root directory of the project.
10. Build the application and you can debug it.