NOTE: This is objective type question, Please click question title for correct answer.
ViewState
allows the state of objects (serializable) to be stored in a hidden
field on the page. ViewState is transported to the client and back to
the server, and is not stored on the server or any other external
source. ViewState is used to retain the state of server-side objects
between postabacks.
Use Debug class to debug builds
Use Trace class for both debug and release builds.
Use Trace class for both debug and release builds.
DataReader
===========
DataReader is like a forward only recordset. It fetches one row at a time so very less network cost compare to DataSet(Fethces all the rows at a time). DataReader is readonly so we can't do any transaction on them. DataReader will be the best choice where we need to show the data to the user which requires no transaction. As DataReader is forward only so we can't fetch data randomly. .NET Data Providers optimizes the datareader to handle huge amount of data.
DataSet
=======
DataSet is an in memory representation of a collection of Database objects including tables of a relational database schemas.
DataSet is always a bulky object that requires a lot of memory space compare to DataReader. We can say that the DataSet is a small database because it stores the schema and data in the application memory area. DataSet fetches all data from the datasource at a time to its memory area. So we can traverse through the object to get the required data like querying database.
===========
DataReader is like a forward only recordset. It fetches one row at a time so very less network cost compare to DataSet(Fethces all the rows at a time). DataReader is readonly so we can't do any transaction on them. DataReader will be the best choice where we need to show the data to the user which requires no transaction. As DataReader is forward only so we can't fetch data randomly. .NET Data Providers optimizes the datareader to handle huge amount of data.
DataSet
=======
DataSet is an in memory representation of a collection of Database objects including tables of a relational database schemas.
DataSet is always a bulky object that requires a lot of memory space compare to DataReader. We can say that the DataSet is a small database because it stores the schema and data in the application memory area. DataSet fetches all data from the datasource at a time to its memory area. So we can traverse through the object to get the required data like querying database.
Custom tag allows you to create your own tag and specify key value pair for it.
NOTE: This is objective type question, Please click question title for correct answer.
|
NOTE: This is objective type question, Please click question title for correct answer.
|
|
1. Application level config = Web.config.
2. Machine level config = Machine.config. |
|
System.Environment.UserName
|
|
NOTE: This is objective type question, Please click question title for correct answer.
|
|
HttpHanlder
is the low level Request and Response API to service incoming Http
requests. All handlers implement the IHttpHandler interface. There is no
need to use any extra namespace to use it as it contains in the
System.Web namespace. Handlers are somewhat analogous to Internet Server
Application Programming Interface (ISAPI) extensions.
Each incoming HTTP request received by ASP.NET is ultimately processed by a specific instance of a class that implements IHTTPHanlder. IHttpHanlderFactory provides the infrastructure that handles the actual resolution of URL requests to IHttpHanlder instances. In addition to the default IHttpHandlerFactory classes provided by ASP.NET, developers can optionally create and register factories to support rich request resolution. |
|
When
EnableViewStateMAC is true for a page, the encoded and encrypted
viewstate is checked to verify that it has not been tempered with on the
client machine.
A EnableViewStateMAC is encoded version of the hidden variable that a page's viewstate is persisted to when sent to the browser. |
Item stored in ViewState exist for the life of the current page. This includes postbacks (to the same page).
How to make sure that despite using validation control on your.aspx page, your page is valid? or how to validate the page in the server side?
use Page.IsValid method, this revalidate your data server side against each Validation control used.
Posted by: Raja
Item stored in ViewState exist for the life of the current page. This includes postbacks (to the same page).
How to make sure that despite using validation control on your.aspx page, your page is valid? or how to validate the page in the server side?
Posted by: Raja
use Page.IsValid method, this revalidate your data server side against each Validation control used.
No comments:
Post a Comment