ASP.NET Interview Questions and Answers (1544) - Page 23

The configurable set of rules that the CLR follows when determining the permissions to grant to code.

1) Enterprise
2) Machine
3) User and
4) Application Domain

each of these are independent from each other and Each level has its own code groups and permission sets.

System.Windows.Clipboard is the class used to get what is on clipboard like text , mage etc.

DataPager control is the new control introduced in the ASP.NET 4.0. This control is used to do pagination in the Data controls like ListView Server control.

The typical syntax of DataPager control is

<asp:DataPager ID="DataPager1" runat="server" PagedControlID="ListView1" PageSize="5" QueryStringField="pageid">

<Fields>

<asp:NumericPagerField ButtonCount="5" />

</Fields>

</asp:DataPager>

Where PagedControlID is the id of the Listview, PageSize is the number of records to be displayed in the page, QueryStringField is the querystring for the current page number.

The fields properties can be used to show how many pagination button you would like to have when asp.net creates the paging for your ListView control.

More about DataPager control can be found at http://www.dotnetfunda.com/articles/article122.aspx

if you want to delete resources(objects) those are not using you should not worry about that garbage collecter implicitly call finalize() method and remove all such object but if you want to delete object forcefully(The larger object you want to delete after completeing task) than you can explicitly call dispose() method.

A filter condition can be specified on a datatable to filter row based on the condition specfied

datatable =  datatable.select("Condition");

Partial class is the concept of diving a class file in to different files or a single file to enhance the productivity .

We cannot have the same method with same name and signature in partial class it give a compile time exception

When ever user want to return a value from an iterator block and again contine from in the iterator block we use yeild keyword it is used to return the value from a iterator block, it is not supported in vb.net

The Global.asax file is an optional file and can be stored
in root directory. This File is in accesible for web-sites.
This Global.asax file contained in HttpApplicationClass.
In Global.asax file we can declare global variables like for
example the variables used in master pages because same
variables can be used for different pages right.It provides
more security than others.
The Global.asax file is used to handle application-level
and session-level events.
we donot worry about configuring Global.asax because it is
itself configured. Accessing the Global.asax file can not be possible.
while one request is in processing it is impossible to
send another request, we can not get response for other
request and even we can not start a new session.
while adding this Global.asax file to our application bydefault it contains five methods,
Those methods are:
1.Application_Start.
2.Application_End.
3.Session_Start.
4.Session_End.
5.Application_Error.

NOTE: This is objective type question, Please click question title for correct answer.

Session
The default Expiration Period for Session is 20 minutes

Cookies
The default Expiration Period for Cookie is 30 minutes

The maximum size of the viewstate is 25% of the page size.

NOTE: This is objective type question, Please click question title for correct answer.

In the web.config.comments file, find a node called <httpRuntime> that looks like the following:
<httpRuntime
executionTimeout="110"
maxRequestLength="4096"
requestLengthDiskThreshold="80"
useFullyQualifiedRedirectUrl="false"
minFreeThreads="8"
minLocalRequestFreeThreads="4"
appRequestQueueLimit="5000"
enableKernelOutputCache="true"
enableVersionHeader="true"
requireRootedSaveAsPath="true"
enable="true"
shutdownTimeout="90"
delayNotificationTimeout="5"
waitChangeNotification="0"
maxWaitChangeNotification="0"
enableHeaderChecking="true"
sendCacheControlHeader="true"
apartmentThreading="false" />


A lot is going on in this single node, but the setting that takes care of the size of the files to be uploaded is the maxRequestLength attribute. By default, this is set to 4096 kilobytes (KB). Simply change this value to increase the size of the files that you can upload to the server. If you want to allow 10 megabyte (MB) files to be uploaded to the server, set the maxRequestLength value to 11264, meaning that the application allows files that are up to 11000 KB to be uploaded to the server.

for 7 times. 5 for the items, 1 for header & 1 for footer.

NOTE: This is objective type question, Please click question title for correct answer.

We can put one web.config in each subfolders but which is at the application root folder web.config will consider as the main web.config.

The maximum size is limited by Int32. So 2^32 is the maximum number of DataTables you can hold inside a DataSet. So the max size is 2 billion.

There is no limit for the storing of tables in the dataset. We can use many tables in a single dataset.

In ASP.NET 1.0 it was handled by webuivalidation.js script file. The scripts are now included in the page straight from the DLL. This is done through the special handler (/WebResource.axd), so you can't edit the javascript files.