DataGrid.SelectedCellsChanged Kejadian
Definisi
Penting
Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.
Terjadi saat SelectedCells koleksi berubah.
public:
event System::Windows::Controls::SelectedCellsChangedEventHandler ^ SelectedCellsChanged;
public event System.Windows.Controls.SelectedCellsChangedEventHandler SelectedCellsChanged;
member this.SelectedCellsChanged : System.Windows.Controls.SelectedCellsChangedEventHandler
Public Custom Event SelectedCellsChanged As SelectedCellsChangedEventHandler
Public Event SelectedCellsChanged As SelectedCellsChangedEventHandler
Jenis Acara
Contoh
Contoh berikut menunjukkan cara menangani SelectedCellsChanged peristiwa dan menghapus nilai dalam sel yang baru dipilih.
<Grid>
<DataGrid Name="DG1" ItemsSource="{Binding}" SelectionUnit="CellOrRowHeader" SelectionChanged="DG1_SelectionChanged" SelectedCellsChanged="DG1_SelectedCellsChanged" />
</Grid>
private void DG1_SelectedCellsChanged(object sender, SelectedCellsChangedEventArgs e)
{
//Get the newly selected cells
IList<DataGridCellInfo> selectedcells = e.AddedCells;
//Get the value of each newly selected cell
foreach (DataGridCellInfo di in selectedcells)
{
//Cast the DataGridCellInfo.Item to the source object type
//In this case the ItemsSource is a DataTable and individual items are DataRows
DataRowView dvr = (DataRowView)di.Item;
//Clear values for all newly selected cells
AdventureWorksLT2008DataSet.CustomerRow cr = (AdventureWorksLT2008DataSet.CustomerRow)dvr.Row;
cr.BeginEdit();
cr.SetField(di.Column.DisplayIndex, "");
cr.EndEdit();
}
}
Private Sub DG1_SelectedCellsChanged(sender As Object, e As SelectedCellsChangedEventArgs)
'Get the newly selected cells
Dim selectedcells As IList(Of DataGridCellInfo) = e.AddedCells
'Get the value of each newly selected cell
For Each di As DataGridCellInfo In selectedcells
'Cast the DataGridCellInfo.Item to the source object type
'In this case the ItemsSource is a DataTable and individual items are DataRows
Dim dvr As DataRowView = DirectCast(di.Item, DataRowView)
'Clear values for all newly selected cells
Dim cr As AdventureWorksLT2008DataSet.CustomerRow = DirectCast(dvr.Row, AdventureWorksLT2008DataSet.CustomerRow)
cr.BeginEdit()
cr.SetField(di.Column.DisplayIndex, "")
cr.EndEdit()
Next
End Sub
Keterangan
Anda dapat menangani kejadian yang SelectedCellsChanged akan diberi tahu ketika kumpulan sel yang dipilih diubah. Jika pilihan menyertakan baris penuh, Selector.SelectionChanged acara juga dinaikkan.
Anda dapat mengambil AddedCells dan RemovedCells dari SelectedCellsChangedEventArgs di penanganan aktivitas.