Silverlight DataGrid how to get cell value from a selected item?

Question

I am trying to get a cell value from the selected item of a silverlight datagrid. In the attached code I can get to the properties of the cell and change its forecolor, but I can not get the value of the cell. Can someone please let me know what I am doing wrong? Many thanks in advance for your help!

    private void FindDetails_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        DataGrid dataGrid = sender as DataGrid;

        int selectedIndex = dataGrid.SelectedIndex;
        if (selectedIndex > -1)
        {
            FindResult findResult = (FindResult)FindDetailsDataGrid.SelectedItem;

            DataGridColumn column = dataGrid.Columns[0];
            FrameworkElement fe = column.GetCellContent(dataGrid.SelectedItem);
            FrameworkElement result = GetParent(fe, typeof(DataGridCell));

            if (result != null)
            {
                DataGridCell cell = (DataGridCell)result;
                //changes the forecolor
                cell.Foreground = new SolidColorBrush(Colors.Blue);
                //how to get cell value?
            }
        }
    }

    private FrameworkElement GetParent(FrameworkElement child, Type targetType)
    {
        object parent = child.Parent;
        if (parent != null)
        {
            if (parent.GetType() == targetType)
            {
                return (FrameworkElement)parent;
            }
            else
            {
                return GetParent((FrameworkElement)parent, targetType);
            }
        }
        return null;
    }

what object is bound to data grid's column for the cell in question? — VoodooChild, Jun 25 '10 at 19:52
you should mark this answered if you are finished with this question please, thanks. — VoodooChild, Jun 30 '10 at 01:12

score 4 · Accepted Answer · answered Jun 25 '10 at 21:58

Thanks VooDooChild, see below for my solution using the textblock to get at value.

private void FindDetails_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        DataGrid dataGrid = sender as DataGrid;

        int selectedIndex = dataGrid.SelectedIndex;
        if (selectedIndex > -1)
        {
            FindResult findResult = (FindResult)FindDetailsDataGrid.SelectedItem;

            DataGridColumn column = dataGrid.Columns[0];
            FrameworkElement fe = column.GetCellContent(dataGrid.SelectedItem);
            FrameworkElement result = GetParent(fe, typeof(DataGridCell));

            if (result != null)
            {
                DataGridCell cell = (DataGridCell)result;
                //changes the forecolor
                cell.Foreground = new SolidColorBrush(Colors.Blue);
                //how to get cell value?

                TextBlock block = fe as TextBlock;
                if (block != null)
                {
                    string cellText = block.Text;
                    MessageBox.Show(cellText);
                }
            }
        }
    }

score 1 · Answer 2 · answered Jun 25 '10 at 19:59

1

private void FindDetails_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
  DataGrid dataGrid = sender as DataGrid;
  var item = dataGrid.SelectedItem;
  if (item != null)
  {
    //in here you can get the properties with the "item"'s object
  }
}

answered Jun 25 '10 at 19:59

VoodooChild

9,776
8
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Can you show how to retrieve the value from the selected item? I can only change the properties of the textblock. – Arkady Jun 25 '10 at 20:30

score 1 · Answer 3 · edited Nov 18 '11 at 18:13

1

Have you tried something like this pseudo:

string myString = ((MyNamespace.MyEntity)(myDataGrid.SelectedItem)).myStringProperty;

edited Nov 18 '11 at 18:13

T.Rob

31,522
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answered Oct 27 '11 at 17:44

JamesGordon

11
1

score 0 · Answer 4 · answered Jun 25 '10 at 19:57

0

Try cell.Content

http://msdn.microsoft.com/en-us/library/system.windows.controls.contentcontrol.aspx

answered Jun 25 '10 at 19:57

Biff MaGriff

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I tried cell.Content.ToString(); and got back System.Windows.Controls.TextBlock – Arkady Jun 25 '10 at 20:34
Ok try ((TextBlock)cell.Content).Text :D – Biff MaGriff Jun 28 '10 at 01:44

Silverlight DataGrid how to get cell value from a selected item?

4 Answers4

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