WPF工具包DataGrid SelectionChanged获取单元格值

Question

请帮助我,我试图从SelectionChangedEvent中的选定行获取Cell [0]的值.

我只是设法得到许多不同的Microsoft.Windows.Controls,我希望我错过了一些愚蠢的东西.

希望我能从这里得到一些帮助......

    private void datagrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        Microsoft.Windows.Controls.DataGrid _DataGrid = sender as Microsoft.Windows.Controls.DataGrid;
    }

我希望它会像......

_DataGrid.SelectedCells[0].Value;

但是.Value不是一个选择....

非常感谢这一直让我发疯!担

Answer 1

更少的代码,它的工作原理.

private void datagrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        DataGrid dataGrid = sender as DataGrid;
        DataGridRow row = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromIndex(dataGrid.SelectedIndex);
        DataGridCell RowColumn = dataGrid.Columns[ColumnIndex].GetCellContent(row).Parent as DataGridCell;
        string CellValue = ((TextBlock)RowColumn.Content).Text;
    }

ColumnIndex是您想知道的列的索引.

Answer 2

请检查以下代码是否适合您:

private void dataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    DataGrid dataGrid = sender as DataGrid;
    if (e.AddedItems!=null && e.AddedItems.Count>0)
    {
        // find row for the first selected item
        DataGridRow row = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromItem(e.AddedItems[0]);
        if (row != null)
        {
            DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(row);
            // find grid cell object for the cell with index 0
            DataGridCell cell = presenter.ItemContainerGenerator.ContainerFromIndex(0) as DataGridCell;
            if (cell != null)
            {
                Console.WriteLine(((TextBlock)cell.Content).Text);
            }
        }
    }
}

static T GetVisualChild<T>(Visual parent) where T : Visual
{
    T child = default(T);
    int numVisuals = VisualTreeHelper.GetChildrenCount(parent);
    for (int i = 0; i < numVisuals; i++)
    {
        Visual v = (Visual)VisualTreeHelper.GetChild(parent, i);
        child = v as T;
        if (child == null) child = GetVisualChild<T>(v);
        if (child != null) break;
    }
    return child;
}

希望这有帮助,问候