DOT NET Interview Questions - DotNetSpider

With this setting, all the requests are made as the specified user (Assuming the password
it correct in the configuration file). So, for example you could designate a user for a single
application, and use that user’s identity every time someone authenticates to the
application. The drawback to this technique is that you must embed the user’s password
in the web.config file in plain text. Although ASP.NET won’t allow anyone to download
this file, this is still a security risk if anyone can get the file by other means.
(B)What’s difference between Datagrid , Datalist and
repeater ?
A Datagrid, Datalist and Repeater are all ASP.NET data Web controls.
They have many things in common like DataSource Property , DataBind Method
ItemDataBound and ItemCreated.
When you assign the DataSource Property of a Datagrid to a DataSet then each DataRow
present in the DataRow Collection of DataTable is assigned to a corresponding
DataGridItem and this is same for the rest of the two controls also.But The HTML code
generated for a Datagrid has an HTML TABLE element created for the particular
DataRow and its a Table form representation with Columns and Rows.
For a Datalist its an Array of Rows and based on the Template Selected and the
RepeatColumn Property value We can specify how many DataSource records should
appear per HTML row. In short in datagrid we have one record per row, but in
datalist we can have five or six rows per row.
For a Repeater Control,The Datarecords to be displayed depends upon the Templates
specified and the only HTML generated is the due to the Templates.
In addition to these , Datagrid has a in-built support for Sort,Filter and paging the Data
,which is not possible when using a DataList and for a Repeater Control we would require
to write an explicit code to do paging.
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