Error handling in Classic ASP was not the best. ASP.NET has a new error handling mechanism which was already in other languages such as C, C++ and JAVA. It is called the try...catch mechanism, which is also known as "Exception Handling".
This article provides insight about exception handling on the basis of ASP.NET and C# as code behind.
In order to send email attachements from a form, we first upload the file to a temporary location on the server. We then attach the file to the email message, execute the mail message to sent he email and finally delete the file from the temporary location.
Please follow the following steps to add attchment funtionality to you Asp.Net form using C#.
The CheckBoxList control creates a multiselection check box group. To specify items that you want to appear in the CheckBoxList control, place a ListItem element for each entry between the opening and closing tags of the CheckBoxList control. The CheckBoxList control can be dynamically generated using data binding as well.
A connection pool is a cache of database connections maintained by the database so that the connections can be reused when the database receives future requests for data. Connection pooling problems are almost always caused by a "connection leak". Connection leak is a condition where your application does not close its database connections correctly and consistently.