protected virtual void OnSelectionChanging(SelectionChangingEventArgs e) { if (SelectionChanging != null) { SelectionChanging(this, e); } }
private void OnSelectionChanged(object sender, SelectionChangingEventArgs <ALogSummaryVm> e) { // Auto scroll Dispatcher.BeginInvoke(new Action(() => { xamlDataGrid.SelectedItem = e.SelectedItem; var scrollViewer = xamlDataGrid.FindChild <ScrollViewer>("DG_ScrollViewer"); var itemsCount = xamlDataGrid.Items.Count; if (itemsCount > 0) { var ratio = e.SelectedIndex / (double)itemsCount; var itemPosition = ratio * (scrollViewer.ScrollableHeight + scrollViewer.ViewportHeight); var currentPosition = scrollViewer.VerticalOffset; if (currentPosition < itemPosition && itemPosition < (currentPosition + scrollViewer.ViewportHeight)) { // no need to scroll } else if (currentPosition < itemPosition) { scrollViewer.ScrollToVerticalOffset( itemPosition - scrollViewer.ViewportHeight + xamlDataGrid.RowHeight); } else { scrollViewer.ScrollToVerticalOffset(itemPosition); } } })); }
private void AssociatedObjectSelectionChanging(object sender, SelectionChangingEventArgs e) { e.Cancel = false; if (CanCancel != null) { e.Cancel = CanCancel(); } }
void cellgrid_SelectionChanging(object sender, SelectionChangingEventArgs args) { if (disableCell && args.ActiveRange.Contains(GridRangeInfo.Cell(3, 3))) { args.Cancel = true; } eventsTxtBox.Text += "\nSelection changing"; }
/// <summary> /// Invokes the selection changing. /// </summary> /// <param name="e">The <see cref="SelectionChangingEventArgs"/> instance containing the event data.</param> protected void InvokeSelectionChanging(SelectionChangingEventArgs e) { EventHandler <SelectionChangingEventArgs> handler = SelectionChanging; if (handler != null) { handler(this, e); } }
private void InternalSelectionChanged(Object s, SelectionChangedEventArgs e) { var args = new SelectionChangingEventArgs(); OnSelectionChanging(args); if (args.Cancel) { return; } OnSelectionChanged(e); }
private bool HandleItemSelectionChanged(TItem item, bool isSelecting) { using (_selectionManagement.Raise()) { if (_selectionManagement.IsLocked) { return(false); } if (_selectedItems.Contains(item) && isSelecting) { //redundant call, skip return(true); } var args = new SelectionChangingEventArgs(item, isSelecting); InvokeSelectionChanging(args); if (args.Cancel) { //cancel selection change item.IsSelected = !isSelecting; return(false); } if (isSelecting) { if (((uint)_selectionMode & SingleSelectionMask) != 0) { _selectedItems.ForEach(a => { a.IsSelected = false; }); _selectedItems.Clear(); } _selectedItems.Add(item); item.IsSelected = true; } else { _selectedItems.Remove(item); item.IsSelected = false; if (IsSelectionRequired && _selectedItems.Count == 0 && Count > 0) { _selectedItems.Add(this[0]); item.IsSelected = true; } } InvokeSelectionChanged(new EventArgs()); NotifyOfPropertyChange(() => SelectedItem); return(true); } }
private void GrdBanksSelectionChanging(object sender, SelectionChangingEventArgs e) { shouldMoveToFirst = true; var currentItem = (e.Source as RadGridView).SelectedItem as OwnerDataModel; if (currentItem != null && currentItem.IsDirty && !shouldMoveToPrevious) { shouldMoveToFirst = false; manageOwnersViewModel.ConfirmChangesAsync(currentItem, true, false); } }
/// <summary> /// eq filter selected changed /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void eqcombox_SelectionChanging(object sender, SelectionChangingEventArgs e) //eq type { // e.Cancel = true; TComboBox cbx = sender as TComboBox; int eindex = cbx.iTg; int filterindex = cbx.SelectedIndex; m_eqEdit[eindex].eq_Filterindex = (byte)filterindex; if (onEQControlChangedEvent != null) { onEQControlChangedEvent(this, eindex); } }
private bool FireSelectionChangingAndSeeIfShouldCancel(object oldItem, object newItem) { if (SelectionChanging != null) { var changingArgs = new SelectionChangingEventArgs(_selectedItem, newItem); SelectionChanging(this, changingArgs); if (changingArgs.Cancel) { return(true); } } return(false); }
public void OnSelectionChanging(SelectionChangingEventArgs e) { if (_supress || SelectionChanging == null) { return; } // Invoke user event handler and revert to // last selected index if user cancels the change SelectionChanging(this, e); if (e.Cancel) { _suppress = true; SelectedIndex = _lastIndex; _suppress = false; } }
public void OnSelectionChanging(SelectionChangingEventArgs e) { if (_suppress) { return; } // Recall the last SelectedIndex before raising SelectionChanging _lastIndex = (_index >= 0) ? _index : SelectedIndex; if (SelectionChanging == null) { return; } // Invoke user event handler and revert to last // selected index if user cancels the change SelectionChanging(this, e); if (e.Cancel) { _suppress = true; SelectedIndex = _lastIndex; _suppress = false; } }
private void RadDataBoundListBox_OnSelectionChanging(object sender, SelectionChangingEventArgs e) { e.Cancel = true; }
private void RadDataBoundListBox_OnSelectionChanging(object sender, SelectionChangingEventArgs e) { e.Cancel = true; }
private void ItemsControl_OnSelectionChanging(object sender, SelectionChangingEventArgs e) { e.Cancel = true; }
private void ItemsControl_OnSelectionChanging(object sender, SelectionChangingEventArgs e) { e.Cancel = true; }