ASP.NET

Why dynamically created user controls disappear when controls are not doing full postbacks?

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Based on my current understandings, when you have an UpdatePanel control there is no full postback. Therefore if I dynamically add custom user controls and they have UpdatePanels that are updated in their code they shouldnt disappear from the page they are loaded into, right? Apparently not. I made a simple project to test and still my dynamic controls disappear when clicked even though they should not be triggering a full postback. I have an aspx page that loads the controls:

Two-way communication between AppDomains inside of IIS Requests

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I’m working on an ASP.NET app, and we want to add the ability to call customer script during some of the requests. Since we don’t trust this script, we are spawning a child AppDomain inside of our IIS request which has limited permissions, and loading both the customer assembly and a Script Runner assembly. The customer script can do things like change the description of a business object or change a status code to an error if certain criteria are met. Because the changes are so varied, I can’t encompass them in a single object that gets returned from a method call. As the script is running, I need it to alter values in objects inside of the Request that launched this child.

How do I auto-increment a column in my table?

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I’m building a database with a product instance table in Visual Studio2010 with Sql Server 2008, and I need to make the ProductId column autoincremented, but I cannot find the attribute in the column properties menu. I’m using c# and asp.net, if that is relevant. I’ve seen the code to create the table and set the column to autoincrement, but as this is my first go-round with coding, I don’t know where to put the code. The only way I know to create a new table is through the VS gui, if that makes sense.