ASP Source Code

One of the Important property of all the Data presentation controls in ASP.Net is the "DataKeynames" This is available in all of the data controls like GridView, DetailsView....etc. Most of the time we will assign the primary key of the data to this property . We can assign more that one data column value to this field, separated by a comma.This property need to be important at the time of updating a record from the data control.Now we can look one sample on how this datakeyNames were used in a DataGridView DataKeyNames in GridView Suppose I want to display an Employee details table data of a company. Here the user don't need to view the employee id in the table.But we were provided a checkbox on each rows corresponding to each employee, and a button provided bellow the Grid. On clicking this button, some action will take place for the checked rows data (here suppose we have to archive the checked row employee's data) . Then Our code will look like a...