Partilhar via

SortDescriptions in Silverlight Datagrid

  • Artigo

In Silverlight 3, we can specify add sortdescriptions indatagrid so that these columns are sorted initially when the datagrid loads. This can done in XAML as well as in code. The following code snippets demonstrate this behavior.

Specifying SortDescriptions in XAML

<UserControl x:Class="SortDescriptions3.MainPage"

   xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation"

   xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml"

   xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"

   xmlns:scm="clr-namespace:System.ComponentModel;assembly=System.Windows"

   >

    <Grid x:Name="LayoutRoot" Background="White">

        <data:DataGrid x:Name="dg">

            <data:DataGrid.SortDescriptions>               

                <scm:SortDescription PropertyName="City" Direction="Descending" />

                <scm:SortDescription PropertyName="Department" Direction="Ascending" />

            </data:DataGrid.SortDescriptions>

        </data:DataGrid>

    </Grid>

</UserControl>

In the above code, we specified the column “City” to be sorted in Descending order, and the column “Department” to be sorted in Ascending order.

Specifying SortDescriptions through code

Defining SortDescriptions on PagedCollectionView

            List<Employee> list = PopulateData(100);

            PagedCollectionView cv = new PagedCollectionView(list);

            cv.GroupDescriptions.Add(new PropertyGroupDescription("City"));

            dg.ItemsSource = cv;

            cv.SortDescriptions.Add(new SortDescription("FirstName", ListSortDirection.Ascending));

            cv.SortDescriptions.Add(new SortDescription("Department", ListSortDirection.Descending));

 

We can combine sort Descriptions as well as GroupDescriptions (to specify column grouping) as indicated in the above code.

Defining SortDescriptions on datagrid

            List<Employee> list = PopulateData(100);

            dg.ItemsSource = list;

            dg.SortDescriptions.Add(new SortDescription("City", ListSortDirection.Descending));

            dg.SortDescriptions.Add(new SortDescription("Department", ListSortDirection.Ascending));

 

DataGridSortDescriptions 

Hooking up the code pieces together and building the application and running it will show us sorting in datagrid.

Comments

  • Anonymous
    March 22, 2009
    PingBack from http://blog.a-foton.ru/index.php/2009/03/22/sortdescriptions-in-silverlight-datagrid/

  • Anonymous
    March 24, 2009
    Does Silverlight 3 has also SortDescriptions for ListBox or only for DataGrid?

  • Anonymous
    March 26, 2009
    ListBox does not have SortDesciptions. However, if you want to see sorted data in a listbox, then you set the items source to a collection that has sortdescriptions like pagedcollectionview. following code should give some idea            List<City> cities = new List<City>();            cities.Add(new City("miami"));            cities.Add(new City("los angeles"));            cities.Add(new City("Denver"));            cities.Add(new City("Austin"));            PagedCollectionView cv = new PagedCollectionView(cities);            cv.SortDescriptions.Add(new SortDescription("CityName",ListSortDirection.Ascending));            mylistbox.ItemsSource = cv;            mylistbox.DisplayMemberPath = "CityName"; City Class:    public class City    {        public string CityName { get; set; }        public City(string city)        {             CityName = city;        }    }

  • Anonymous
    April 08, 2009
    Grouping data in Silverlight DataGrid

  • Anonymous
    April 08, 2009
    I got this question on how do you add grouping to the DataGrid in Silverlight without using the RIA Services

  • Anonymous
    May 13, 2009
    I'm not seeing SortDescription Property on DataGrid though I've SL3 installed.

  • Anonymous
    August 14, 2009
    I'm not see a MyDataGrid.SortDescription in SL3 to

  • Anonymous
    February 04, 2010
    Comments (required)http://blogs.msdn.com/blogs/JpegImage.aspxEnter Code Here: RequiredRemember Me?

  • Anonymous
    July 08, 2010
    It looks like the SortDescription property was removed from the grid - it is not in SL4. Instead you have to use a PagedCollectionView and set SortDescription  on that.