Collection of sorted Columns

Namespace: Dapfor.Net.Ui
Assembly: Dapfor.Net (in Dapfor.Net.dll) Version: 2.10.3.24917 (2.10.3.24917)

Syntax

C#
public sealed class SortedColumnCollection : IEnumerable<Column>, 
	IEnumerable
Visual Basic
Public NotInheritable Class SortedColumnCollection
	Implements IEnumerable(Of Column), IEnumerable
Visual C++
public ref class SortedColumnCollection sealed : IEnumerable<Column^>, 
	IEnumerable
F#
[<SealedAttribute>]
type SortedColumnCollection =  
    class
        interface IEnumerable<Column>
        interface IEnumerable
    end

Remarks

.Net Grid sorting depends on headers. Sorted columns are stored in Header.SortedColumns. To enable sorting you have to use Column.SortDirection property. Calling this property for multiple columns sets multiple sorting by these columns. To cancel sorting, call Clear()()()()Header.SortedColumns.Clear().
 Copy imageCopy
public void SortedColumnsExample(Grid grid)
{
    //Add a new header on the top hierarchical level (level 0)
    Header header = new Header();
    header.Add(new Column("Column1"));
    header.Add(new Column("Column2"));
    header.Add(new Column("Column3"));
    grid.Headers.Add(header);

    Console.WriteLine("Sorted columns count: {0}", header.GroupedColumns.Count);

    header.SortedColumns.Clear();

    //Set multiple sort by two columns
    header["Column1"].SortDirection = SortDirection.Ascending;
    header["Column3"].SortDirection = SortDirection.Ascending;

    Console.WriteLine("Columns count: {0}", header.Count);
    Console.WriteLine("Sorted columns count: {0}", header.SortedColumns.Count);

    //Change the sort direction
    header["Column3"].SortDirection = SortDirection.Descending;

    //Iterate in all sorted columns
    foreach (Column column in header.SortedColumns)
    {
        Console.WriteLine("Sorted column: id = '{0}', index = {1}, visible index = {2}, sort level = {3}, sort direction = {4}", column.Id, column.Index, column.VisibleIndex, column.SortLevel, column.SortDirection);
    }

    //Remove sort
    header.SortedColumns.Clear();
    Console.WriteLine("Columns count: {0}", header.Count);
    Console.WriteLine("Sorted columns count: {0}", header.SortedColumns.Count);
}

//Console output:
Sorted columns count: 0
Columns count: 3
Sorted columns count: 2
Sorted column: id = 'Column1', index = 0, visible index = 0, sort level = 0, sort direction = Ascending
Sorted column: id = 'Column3', index = 2, visible index = 2, sort level = 1, sort direction = Descending
Columns count: 3
Sorted columns count: 0

Inheritance Hierarchy

System..::..Object
  Dapfor.Net.Ui..::..Header..::..SortedColumnCollection

Thread Safety

The class is not thread safe

See Also