protected internal Task OnSelectedCommand(BLMouseEventArgs eventArgs)
{
// un-select row if the user is holding the ctrl key on already selected row
if (eventArgs.CtrlKey && eventArgs.Button == MouseButton.Left &&
ParentDataGrid.SelectedRow != null &&
(object)Item == (object)ParentDataGrid.SelectedRow)
{
return(Selected.InvokeAsync(default));
private async Task HandleSingleSelectClick(BLMouseEventArgs eventArgs)
{
// Un-select row if the user is holding the ctrl key on already selected row.
if (ParentDataGrid.SingleSelect && IsCtrlClick(eventArgs) &&
ParentDataGrid.SelectedRow != null &&
Item.IsEqual(ParentDataGrid.SelectedRow))
{
await ParentDataGrid.Select(default);
private async Task HandleMultiSelectClick(BLMouseEventArgs eventArgs)
{
if (ParentDataGrid.MultiSelect)
{
var isSelected = (ParentDataGrid.SelectedRows == null || (ParentDataGrid.SelectedRows != null && !ParentDataGrid.SelectedRows.Any(x => x.IsEqual(Item))));
var shiftClick = (eventArgs.ShiftKey && eventArgs.Button == MouseButton.Left);
await OnMultiSelectCommand(isSelected || shiftClick, shiftClick);
}
}
protected internal Task OnSelectedCommand(BLMouseEventArgs eventArgs)
{
var selectable = ParentDataGrid.RowSelectable?.Invoke(Item) ?? true;
if (!selectable)
{
return(Task.CompletedTask);
}
// un-select row if the user is holding the ctrl key on already selected row
if (eventArgs.CtrlKey && eventArgs.Button == MouseButton.Left &&
ParentDataGrid.SelectedRow != null &&
(object)Item == (object)ParentDataGrid.SelectedRow)
{
return(Selected.InvokeAsync(default));
protected internal async Task HandleClick(BLMouseEventArgs eventArgs)
{
await Clicked.InvokeAsync(new DataGridRowMouseEventArgs <TItem>(Item, eventArgs));
var selectable = ParentDataGrid.RowSelectable?.Invoke(Item) ?? true;
if (!selectable)
{
return;
}
// un-select row if the user is holding the ctrl key on already selected row
if (eventArgs.CtrlKey && eventArgs.Button == MouseButton.Left &&
ParentDataGrid.SelectedRow != null &&
(object)Item == (object)ParentDataGrid.SelectedRow)
{
await Selected.InvokeAsync(default);
protected internal async Task HandleClick(BLMouseEventArgs eventArgs)
{
if (!clickFromCheck)
{
await ParentDataGrid.OnRowClickedCommand(new(Item, eventArgs) );
}
var selectable = ParentDataGrid.RowSelectable?.Invoke(Item) ?? true;
if (!selectable)
{
return;
}
if (!clickFromCheck)
{
await HandleSingleSelectClick(eventArgs);
}
await HandleMultiSelectClick(eventArgs);
clickFromCheck = false;
}
public DataGridRowMouseEventArgs(TItem item, BLMouseEventArgs mouseEventArgs)
{
Item = item;
MouseEventArgs = mouseEventArgs;
}
private bool IsCtrlClick(BLMouseEventArgs eventArgs)
{
var isMacOsCtrl = ParentDataGrid.IsClientMacintoshOS && eventArgs.MetaKey;
return((eventArgs.CtrlKey || isMacOsCtrl) && eventArgs.Button == MouseButton.Left);
}
