C# WPF DataGrid 上下文菜单单击的列

Question

I have simply Datagrid and context menu. I want to get information on what column of datagrid context menu appears. In WinWorms I found solution that MouseClick shows context menu manually and remember column

if (e.Button != MouseButtons.Right) return;
contextMenuStrip1.Show(dataGridView1, e.Location);
_ClickedColumn = dataGridView1.HitTest(e.X, e.Y).ColumnIndex;

How can I get column number in wpf datagrid?

Answer 1

您可以尝试以下操作以获得列索引。

var index = dataGridName.CurrentColumn;

Answer 2

在menuItem单击或ContextMenuOpening事件中，只需检查DataGrid.CurrentColumn

Answer 3

I've been messing with this all afternoon and came up with a solution that seems to work.

XAML

       <DataGrid Name="dgCSVExample"  ItemsSource="{Binding}"  >
            <DataGrid.Resources>
                <Style TargetType="DataGridColumnHeader">
                    <EventSetter Event="ContextMenuOpening" Handler="DataGridColumnHeader_ContextMenuOpening"/>
                </Style>
            </DataGrid.Resources>

CS

private int _LastClickedColumn = 0;

    private void DataGridColumnHeader_ContextMenuOpening(object sender, ContextMenuEventArgs e)
    {
        _LastClickedColumn = ((DataGridColumnHeader)sender).TabIndex;

        Debug.WriteLine("hide clicked");
    }

Then in the context menu option click event I was able to access the DataTable (or it would work with a List object as well) by doing this:

    private void miHide_Click(object sender, RoutedEventArgs e)
    {
        DataColumn dc = _dtSampleCSV.Columns[_LastColumnClicked];
        //process data here
        Debug.WriteLine("miHide clicked");
    }