Question

How to Call a Constructor from its Parametrized Constructor?

Following is my user control code where I want to call two parametrized RouteBuilderPagerControl constructor from three parametrized RouteBuilderPagerControl.

public RouteBuilderPagerControl(GridPagingManager paging, GridTableView tableView)
{
  SetPager(paging, tableView);
  SetDataToControl();
}
public RouteBuilderPagerControl(GridPagingManager paging, GridTableView tableView, List<int> pageSizes)
{
  ddl.Items.Clear();
  pageSizes.Sort();
  foreach (int size in pageSizes)
  {
    ddl.Items.Add(new ListItem(size.ToString() + " per page", size.ToString()));
  }
  SetPager(paging, tableView);
  SetDataToControl();
}

Answer 1

You can chain constructors:

public RouteBuilderPagerControl(GridPagingManager paging, 
                                GridTableView tableView, 
                                List<int> pageSizes) 
    : this(paging, tableView)

This is described in MSDN – Using Constructors.

In your case, you would want these two lines to only appear in the chained constructor:

SetPager(paging, tableView);
SetDataToControl();