DataGrid.SelectedCellsChanged 事件
定义
重要
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当 SelectedCells 集合更改时发生。
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 事件类型
示例
以下示例演示如何处理 SelectedCellsChanged 事件并清除新所选单元格中的值。
<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
注解
可以处理在 SelectedCellsChanged 所选单元格集合发生更改时收到通知的事件。 如果所选内容包含整行，则 Selector.SelectionChanged 还会引发 事件。
可以在事件处理程序中检索 AddedCellsSelectedCellsChangedEventArgs 和 RemovedCells 。
