private void OnMouseUp(object sender, MouseButtonEventArgs e)
{
if (e.ChangedButton != MouseButton.Left)
{
return;
}
if (HasCurrentCellState && !((CheckBox)sender).IsPressed && IsFocused)
{
((CheckBox)sender).IsChecked = !((CheckBox)sender).IsChecked;
TreeGridCell treeGridCell = null;
var checkBox = sender as CheckBox;
if (checkBox.Parent is TreeGridCell)
{
treeGridCell = checkBox.Parent as TreeGridCell;
}
var rowColumnIndex = new RowColumnIndex();
rowColumnIndex.RowIndex = treeGridCell != null ? treeGridCell.ColumnBase.RowIndex : new RowColumnIndex().RowIndex;
rowColumnIndex.ColumnIndex = treeGridCell != null ? treeGridCell.ColumnBase.ColumnIndex : new RowColumnIndex().ColumnIndex;
if (!rowColumnIndex.IsEmpty)
{
TreeGrid.RaiseCurrentCellValueChangedEvent(new TreeGridCurrentCellValueChangedEventArgs(TreeGrid)
{
RowColumnIndex = rowColumnIndex, Record = checkBox.DataContext, Column = treeGridCell.ColumnBase.TreeGridColumn
});
}
}
}
/// <summary>
/// Called when [CheckBox click].
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="RoutedEventArgs"/> instance containing the event data.</param>
void OnCheckBoxClick(object sender, RoutedEventArgs e)
{
var checkBox = sender as CheckBox;
TreeGridCell treeGridCell = null;
if (checkBox.Parent is TreeGridCell)
{
treeGridCell = checkBox.Parent as TreeGridCell;
}
var rowcolumnIndex = new RowColumnIndex();
rowcolumnIndex.RowIndex = treeGridCell != null ? treeGridCell.ColumnBase.RowIndex : new RowColumnIndex().RowIndex;
rowcolumnIndex.ColumnIndex = treeGridCell != null ? treeGridCell.ColumnBase.ColumnIndex : new RowColumnIndex().ColumnIndex;
#if !WPF
if (checkBox.IsThreeState)
{
SetIsChecked(checkBox, checkBox.IsChecked);
}
if (!rowcolumnIndex.IsEmpty)
{
this.TreeGrid.SelectionController.HandlePointerOperations(new GridPointerEventArgs(PointerOperation.Pressed, null), rowcolumnIndex);
this.TreeGrid.SelectionController.HandlePointerOperations(new GridPointerEventArgs(PointerOperation.Released, null), rowcolumnIndex);
}
#endif
TreeGrid.RaiseCurrentCellValueChangedEvent(new TreeGridCurrentCellValueChangedEventArgs(TreeGrid)
{
RowColumnIndex = rowcolumnIndex, Record = checkBox.DataContext, Column = treeGridCell.ColumnBase.TreeGridColumn
});
if (HasCurrentCellState)
{
BindingExpression = this.CurrentCellRendererElement.GetBindingExpression(ToggleButton.IsCheckedProperty);
}
//when check or uncheck the checkbox, setter property of checkbox column fires two times in the Model class.
//while loading, we set the updatesourcetrigger as explicit for checkboxcolumn if we set updatetrigger as PropertyChanged in sample for checkboxcolumn.
//so skips the below call by checking the updatesourcetrigger.
#if WPF
if (treeGridCell.ColumnBase.TreeGridColumn.isValueMultiBinding)
{
if (BindingExpression != null && (treeGridCell != null && (treeGridCell.ColumnBase.TreeGridColumn.ValueBinding as MultiBinding).UpdateSourceTrigger == UpdateSourceTrigger.Explicit))
{
BindingExpression.UpdateSource();
}
}
else if (BindingExpression != null && (treeGridCell != null && (treeGridCell.ColumnBase.TreeGridColumn.ValueBinding as Binding).UpdateSourceTrigger == UpdateSourceTrigger.Explicit))
{
BindingExpression.UpdateSource();
}
#else
if (BindingExpression != null && (treeGridCell != null && (treeGridCell.ColumnBase.TreeGridColumn.ValueBinding as Binding).UpdateSourceTrigger == UpdateSourceTrigger.Explicit))
{
BindingExpression.UpdateSource();
}
#endif
}
/// <summary>
/// Shoulds the grid try automatic handle key down.
/// </summary>
/// <param name="e">The <see cref="Windows.UI.Core.KeyEventArgs"/> instance containing the event data.</param>
/// <returns></returns>
protected override bool ShouldGridTryToHandleKeyDown(KeyEventArgs e)
{
if (!HasCurrentCellState)
{
return(true);
}
var CurrentCellUIElement = (CheckBox)CurrentCellRendererElement;
TreeGridCell treeGridCell = null;
if (CurrentCellUIElement.Parent is TreeGridCell)
{
treeGridCell = CurrentCellUIElement.Parent as TreeGridCell;
}
switch (e.Key)
{
case Key.Up:
case Key.Down:
return(true);
case Key.Space:
{
if (!CurrentCellUIElement.IsEnabled)
{
return(true);
}
if (BindingExpression != null)
{
BindingExpression.UpdateSource();
}
#if WPF
CurrentCellUIElement.Focus();
#else
CurrentCellUIElement.Focus(FocusState.Programmatic);
#endif
return(true);
}
}
return(base.ShouldGridTryToHandleKeyDown(e));
}
void cells_CollectionChanged(object sender, System.ComponentModel.CollectionChangeEventArgs e)
{
// Exit if there already is a tree cell for this row
if (_treeCell != null) return;
if (e.Action == System.ComponentModel.CollectionChangeAction.Add || e.Action == System.ComponentModel.CollectionChangeAction.Refresh)
{
TreeGridCell treeCell = null;
if (e.Element == null)
{
foreach (DataGridViewCell cell in base.Cells)
{
if (cell.GetType().IsAssignableFrom(typeof(TreeGridCell)))
{
treeCell = (TreeGridCell)cell;
break;
}
}
}
else
{
treeCell = e.Element as TreeGridCell;
}
if (treeCell != null)
_treeCell = treeCell;
}
}
void OnHyperLinkClick(object sender, EventArgs e)
#endif
{
#if WPF
Hyperlink hyperlinkControl;
//Content is TetxBlock, so we need to get the Hyperlink from Inlines of TextBlock
if (sender is TextBlock)
{
hyperlinkControl = (sender as TextBlock).Inlines.Cast <Hyperlink>().FirstOrDefault();
}
else
{
hyperlinkControl = (Hyperlink)sender;
}
#else
var hyperlinkControl = (HyperlinkButton)sender;
#endif
TreeGridCell gridcell = null;
#if UWP
if (hyperlinkControl.Parent is TreeGridCell)
{
gridcell = hyperlinkControl.Parent as TreeGridCell;
}
#else
if (hyperlinkControl.Parent is TextBlock)
{
var textBlock = hyperlinkControl.Parent as TextBlock;
gridcell = textBlock.Parent as TreeGridCell;
}
#endif
var navigateText = string.Empty;
var rowColumnIndex = RowColumnIndex.Empty;
rowColumnIndex.RowIndex = gridcell != null ? gridcell.ColumnBase.RowIndex : new RowColumnIndex().RowIndex;
rowColumnIndex.ColumnIndex = gridcell != null ? gridcell.ColumnBase.ColumnIndex : new RowColumnIndex().ColumnIndex;
if (!rowColumnIndex.IsEmpty)
{
this.TreeGrid.SelectionController.HandlePointerOperations(new GridPointerEventArgs(PointerOperation.Pressed, null), rowColumnIndex);
this.TreeGrid.SelectionController.HandlePointerOperations(new GridPointerEventArgs(PointerOperation.Released, null), rowColumnIndex);
}
if (hyperlinkControl.NavigateUri != null)
{
navigateText = hyperlinkControl.NavigateUri.ToString();
}
else
{
if (rowColumnIndex != null && !rowColumnIndex.IsEmpty)
{
//Get the column from rowColumnIndex.
var column = this.TreeGrid.Columns[this.TreeGrid.ResolveToGridVisibleColumnIndex(rowColumnIndex.ColumnIndex)];
column.ColumnWrapper.DataContext = hyperlinkControl.DataContext;
if (column.ColumnWrapper.Value != null)
{
navigateText = column.ColumnWrapper.Value.ToString();
}
}
}
if (TreeGrid.CurrentCellRequestNavigateEvent(new CurrentCellRequestNavigateEventArgs(TreeGrid)
{
NavigateText = navigateText, RowData = hyperlinkControl.DataContext, RowColumnIndex = rowColumnIndex
}))
{
return;
}
const string pattern = @"((http|https?|ftp|gopher|telnet|file|notes|ms-help):((//)|(\\\\))+[\w\d:#@%/;$()~_?\+-=\\\.&]*)";
//the hyperlink value is stored in the variable navigateText.
if (navigateText != null)
{
var NavigateUri = Regex.IsMatch(navigateText.ToString(), pattern)
? new Uri(navigateText.ToString())
: null;
if (NavigateUri == null)
{
return;
}
hyperlinkControl.NavigateUri = NavigateUri;
#if WPF
Process.Start(new ProcessStartInfo(hyperlinkControl.NavigateUri.AbsoluteUri));
#else
if (e is KeyRoutedEventArgs && (e as KeyRoutedEventArgs).Key == Key.Space)
{
await Launcher.LaunchUriAsync(new Uri(hyperlinkControl.NavigateUri.AbsoluteUri));
}
#endif
}
}