Describe the role of inetinfo.exe, aspnet_isapi.dll
andaspnet_wp.exe in the page loading process.
inetinfo.exe is theMicrosoft
IIS server running, handling ASP.NET requests among other things.When an
ASP.NET request is received (usually a file with .aspx extension), the ISAPI
filter aspnet_isapi.dll takes care of it by passing the request tothe actual worker
process aspnet_wp.exe.
What’s the difference between Response.Write()
andResponse.Output.Write()?
Response.Output.Write()
allows you to write formatted output.
What methods are fired during
the page load?
Init() - when the page is
instantiated
Load() - when the page is
loaded into server memory
PreRender() - the brief
moment before the page is displayed to the user as HTML
Unload() - when page finishes
loading.
When during the page processing cycle is ViewState available?
After the Init() and before
the Page_Load(), or OnLoad() for a control.
What namespace does the Web page belong in the .NET Framework
class hierarchy?
System.Web.UI.Page
Where do you store the information about the user’s locale?
System.Web.UI.Page.Culture
What’s the difference between
Codebehind="MyCode.aspx.cs" andSrc="MyCode.aspx.cs"?
CodeBehind is relevant to
Visual Studio.NET only.
What’s a bubbled event?
When you have a complex
control, like DataGrid, writing an event processing routine for each object
(cell, button, row, etc.) is quite tedious. The controls can bubble up their
eventhandlers, allowing the main DataGrid event handler to take care of its
constituents.
Suppose you want a certain ASP.NET function executed on
MouseOver for a certain button. Where do
you add an event handler?
Add an OnMouseOver attribute
to the button. Example:
btnSubmit.Attributes.Add("onmouseover","someClientCodeHere();");
What data types do the RangeValidator control support?
Integer, String, and Date.
Explain the differences between Server-side and Client-side
code?
Server-side code executes on
the server. Client-side code executes in
the client's browser.
What type of code (server or client) is found in a
Code-Behind class?
The answer is server-side
code since code-behind is executed on the server. However, during the code-behind's execution
on the server, it can render client-side code such as JavaScript to be
processed in the clients browser. But
just to be clear, code-behind executes on the server, thus making it
server-side code.
Should user input data validation occur server-side or
client-side? Why?
All user input data
validation should occur on the server at a minimum. Additionally, client-side validation can be
performed where deemed appropriate and feasable to provide a richer, more
responsive experience for the user.
What is the difference between Server.Transfer and
Response.Redirect? Why would I choose
one over the other?
Server.Transfer transfers
page processing from one page directly to the next page without making a
round-trip back to the client's browser.
This provides a faster response with a little less overhead on the
server. Server.Transfer does not update
the clients url history list or current url.
Response.Redirect is used to redirect the user's browser to another page
or site. This performas a trip back to
the client where the client's browser is redirected to the new page. The user's browser history list is updated to
reflect the new address.
Can you explain the difference between an ADO.NET Dataset and
an ADO Recordset?
Valid answers are:
· A DataSet can represent an entire relational
database in memory, complete with tables, relations, and views.
· A DataSet is designed to work without any continuing
connection to the original data source.
· Data in a DataSet is bulk-loaded, rather than
being loaded on demand.
· There's no concept of cursor types in a
DataSet.
· DataSets have no current record pointer You
can use For Each loops to move through the data.
· You can store many edits in a DataSet, and
write them to the original data source in a single operation.
· Though the DataSet is universal, other
objects in ADO.NET come in different versions for different data sources.
What is the Global.asax used for?
The Global.asax (including
the Global.asax.cs file) is used to implement application and session level
events.
What are the Application_Start and Session_Start subroutines
used for?
This is where you can set the
specific variables for the Application and Session objects.
Can you explain what inheritance is and an example of when
you might use it?
When you want to inherit (use
the functionality of) another class.
Example: With a base class named Employee, a Manager class could be
derived from the Employee base class.
Whats an assembly?
Assemblies are the building
blocks of the .NET framework. Overview of assemblies from MSDN
Describe the difference between inline and code behind.
Inline code written along
side the html in a page. Code-behind is code written in a separate file and
referenced by the .aspx page.
Explain what a diffgram is, and a good use for one?
The DiffGram is one of the
two XML formats that you can use to render DataSet object contents to XML. A good use is reading database data to an XML
file to be sent to a Web Service.
Whats MSIL, and why should my developers need an appreciation
of it if at all?
MSIL is the Microsoft
Intermediate Language. All .NET compatible languages will get converted to
MSIL. MSIL also allows the .NET
Framework to JIT compile the assembly on the installed computer.
Which method do you invoke on the DataAdapter control to load
your generated dataset with data?
The Fill() method.
Can you edit data in the Repeater control?
No, it just reads the
information from its data source.
Which template must you provide, in order to display data in
a Repeater control?
ItemTemplate.
How can you provide an alternating color scheme in a Repeater
control?
Use the
AlternatingItemTemplate.
What property must you set, and what method must you call in
your code, in order to bind the data from a data source to the Repeater
control?
You must set the DataSource
property and call the DataBind method.
What base class do all Web Forms inherit from?
The Page class.
Name two properties common in every validation control?
ControlToValidate property
and Text property.
Which property on a Combo Box do you set with a column name,
prior to setting the DataSource, to display data in the combo box?
DataTextField property.
Which control would you use if you needed to make sure the
values in two different controls matched?
CompareValidator control.
How many classes can a single .NET DLL contain?
It
can contain many classes.