DataGrid到DataRowView

Question

我需要在用户点击时从dataGrid收取项目值，进入数据视图以获取第一个值“IdEmployee”并分配给变量。

这是我的方法，问题是我的变量dataRowView是Null！

我该如何解决这个问题？

private void _employeedataGrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
    DataRowView dataRowView = _employeedataGrid.CurrentCell.Item as DataRowView;
    var idEmployee = Convert.ToInt32(dataRowView.Row[0]);

    .......
} 

Answer 1

这是因为_employeedataGrid.CurrentCell.Item无法转换为DataRowView。为什么不尝试CurrentRow而不是CurrentCell？：

private void _employeedataGrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
    DataRowView dataRowView = _employeedataGrid.CurrentRow.Item as DataRowView;
    var idEmployee = Convert.ToInt32(dataRowView.Row[0]);
    .......
} 

Answer 2

这就是你需要的东西

DataRowView view = _employeedataGrid.Items[_employeedataGrid.SelectedIndex] as DataRowView;

Answer 3

            //during datagrid events like RowEditEnding, SelectionChange event 'e' will be very useful as...
            DataGridRow row1 = e.Row;
            int row_index = ((DataGrid)sender).ItemContainerGenerator.IndexFromContainer(row1);

            //or try this if works
            int i_row = e.Row.GetIndex();

Answer 4

只要选择了该项，就可以直接获取每一列的值，而无需循环。第1列的索引为Row.ItemArray [0]，第2列的索引为Row.ItemArray [1]等。这完全取决于您的任务。

var EmpID = Convert.ToInt32(((DataRowView)_employeedataGrid.SelectedItem).Row.ItemArray[0].ToString());