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ButchersBoyButchersBoy
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fix #100 ~quick~ toggle of checkboxes iside DataGrid, and also combos drop down on a single click
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3 files changed

+132
-23
lines changed

3 files changed

+132
-23
lines changed

‎MainDemo.Wpf/ProvingGround.xaml‎

Lines changed: 4 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -59,16 +59,11 @@
5959
</UserControl.Resources>
6060

6161

62-
<StackPanel Orientation="Horizontal">
63-
<Border BorderBrush="Black" BorderThickness="1" VerticalAlignment="Top">
64-
<wpf:Clock DisplayAutomation="Cycle" Is24Hours="True">
62+
<Grid>
63+
<wpf:Clock DisplayAutomation="None" Is24Hours="False" VerticalAlignment="Center" HorizontalAlignment="Center">
6564
</wpf:Clock>
66-
</Border>
67-
<!--
68-
<wpf:Clock DisplayAutomation="Cycle" Margin="36 0 0 0">
69-
</wpf:Clock>
70-
-->
71-
</StackPanel>
65+
66+
</Grid>
7267

7368

7469

‎MaterialDesignThemes.Wpf/DataGridAssist.cs‎

Lines changed: 127 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -3,23 +3,31 @@
33
using System.Windows.Controls;
44
using System.Windows.Controls.Primitives;
55
using System.Windows.Data;
6+
using System.Windows.Input;
7+
using System.Windows.Media;
8+
using System.Windows.Threading;
69

710
namespace MaterialDesignThemes.Wpf
811
{
912
public static class DataGridAssist
1013
{
11-
public static readonly DependencyProperty AutoGeneratedCheckBoxStyleProperty = DependencyProperty.RegisterAttached(
12-
"AutoGeneratedCheckBoxStyle", typeof (Style), typeof (DataGridAssist), new PropertyMetadata(default(Style), AutoGeneratedCheckBoxStylePropertyChangedCallback));
14+
private static DataGrid _suppressComboAutoDropDown;
1315

14-
private static void AutoGeneratedCheckBoxStylePropertyChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
16+
public static readonly DependencyProperty AutoGeneratedCheckBoxStyleProperty = DependencyProperty
17+
.RegisterAttached(
18+
"AutoGeneratedCheckBoxStyle", typeof (Style), typeof (DataGridAssist),
19+
new PropertyMetadata(default(Style), AutoGeneratedCheckBoxStylePropertyChangedCallback));
20+
21+
private static void AutoGeneratedCheckBoxStylePropertyChangedCallback(DependencyObject dependencyObject,
22+
DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
1523
{
1624
((DataGrid) dependencyObject).AutoGeneratingColumn += (sender, args) =>
1725
{
1826
var dataGridCheckBoxColumn = args.Column as DataGridCheckBoxColumn;
1927
if (dataGridCheckBoxColumn == null) return;
2028

2129
dataGridCheckBoxColumn.ElementStyle = GetAutoGeneratedCheckBoxStyle(dependencyObject);
22-
};
30+
};
2331
}
2432

2533
public static void SetAutoGeneratedCheckBoxStyle(DependencyObject element, Style value)
@@ -32,12 +40,15 @@ public static Style GetAutoGeneratedCheckBoxStyle(DependencyObject element)
3240
return (Style) element.GetValue(AutoGeneratedCheckBoxStyleProperty);
3341
}
3442

35-
public static readonly DependencyProperty AutoGeneratedEditingCheckBoxStyleProperty = DependencyProperty.RegisterAttached(
36-
"AutoGeneratedEditingCheckBoxStyle", typeof (Style), typeof (DataGridAssist), new PropertyMetadata(default(Style), AutoGeneratedEditingCheckBoxStylePropertyChangedCallback));
43+
public static readonly DependencyProperty AutoGeneratedEditingCheckBoxStyleProperty = DependencyProperty
44+
.RegisterAttached(
45+
"AutoGeneratedEditingCheckBoxStyle", typeof (Style), typeof (DataGridAssist),
46+
new PropertyMetadata(default(Style), AutoGeneratedEditingCheckBoxStylePropertyChangedCallback));
3747

38-
private static void AutoGeneratedEditingCheckBoxStylePropertyChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
48+
private static void AutoGeneratedEditingCheckBoxStylePropertyChangedCallback(DependencyObject dependencyObject,
49+
DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
3950
{
40-
((DataGrid)dependencyObject).AutoGeneratingColumn += (sender, args) =>
51+
((DataGrid) dependencyObject).AutoGeneratingColumn += (sender, args) =>
4152
{
4253
var dataGridCheckBoxColumn = args.Column as DataGridCheckBoxColumn;
4354
if (dataGridCheckBoxColumn == null) return;
@@ -56,12 +67,15 @@ public static Style GetAutoGeneratedEditingCheckBoxStyle(DependencyObject elemen
5667
return (Style) element.GetValue(AutoGeneratedEditingCheckBoxStyleProperty);
5768
}
5869

59-
public static readonly DependencyProperty AutoGeneratedEditingTextStyleProperty = DependencyProperty.RegisterAttached(
60-
"AutoGeneratedEditingTextStyle", typeof (Style), typeof (DataGridAssist), new PropertyMetadata(default(Style), AutoGeneratedEditingTextStylePropertyChangedCallback));
70+
public static readonly DependencyProperty AutoGeneratedEditingTextStyleProperty = DependencyProperty
71+
.RegisterAttached(
72+
"AutoGeneratedEditingTextStyle", typeof (Style), typeof (DataGridAssist),
73+
new PropertyMetadata(default(Style), AutoGeneratedEditingTextStylePropertyChangedCallback));
6174

62-
private static void AutoGeneratedEditingTextStylePropertyChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
75+
private static void AutoGeneratedEditingTextStylePropertyChangedCallback(DependencyObject dependencyObject,
76+
DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
6377
{
64-
((DataGrid)dependencyObject).AutoGeneratingColumn += (sender, args) =>
78+
((DataGrid) dependencyObject).AutoGeneratingColumn += (sender, args) =>
6579
{
6680
var dataGridTextColumn = args.Column as DataGridTextColumn;
6781
if (dataGridTextColumn == null) return;
@@ -81,7 +95,8 @@ public static Style GetAutoGeneratedEditingTextStyle(DependencyObject element)
8195
}
8296

8397
public static readonly DependencyProperty CellPaddingProperty = DependencyProperty.RegisterAttached(
84-
"CellPadding", typeof (Thickness), typeof (DataGridAssist), new FrameworkPropertyMetadata(new Thickness(13, 8, 8, 8), FrameworkPropertyMetadataOptions.Inherits));
98+
"CellPadding", typeof (Thickness), typeof (DataGridAssist),
99+
new FrameworkPropertyMetadata(new Thickness(13, 8, 8, 8), FrameworkPropertyMetadataOptions.Inherits));
85100

86101
public static void SetCellPadding(DependencyObject element, Thickness value)
87102
{
@@ -94,7 +109,8 @@ public static Thickness GetCellPadding(DependencyObject element)
94109
}
95110

96111
public static readonly DependencyProperty ColumnHeaderPaddingProperty = DependencyProperty.RegisterAttached(
97-
"ColumnHeaderPadding", typeof (Thickness), typeof (DataGridAssist), new FrameworkPropertyMetadata(new Thickness(8), FrameworkPropertyMetadataOptions.Inherits));
112+
"ColumnHeaderPadding", typeof (Thickness), typeof (DataGridAssist),
113+
new FrameworkPropertyMetadata(new Thickness(8), FrameworkPropertyMetadataOptions.Inherits));
98114

99115
public static void SetColumnHeaderPadding(DependencyObject element, Thickness value)
100116
{
@@ -105,5 +121,102 @@ public static Thickness GetColumnHeaderPadding(DependencyObject element)
105121
{
106122
return (Thickness) element.GetValue(ColumnHeaderPaddingProperty);
107123
}
124+
125+
126+
public static readonly DependencyProperty EnableEditBoxAssistProperty = DependencyProperty.RegisterAttached(
127+
"EnableEditBoxAssist", typeof (bool), typeof (DataGridAssist),
128+
new PropertyMetadata(default(bool), EnableCheckBoxAssistPropertyChangedCallback));
129+
130+
public static void SetEnableEditBoxAssist(DependencyObject element, bool value)
131+
{
132+
element.SetValue(EnableEditBoxAssistProperty, value);
133+
}
134+
135+
public static bool GetEnableEditBoxAssist(DependencyObject element)
136+
{
137+
return (bool) element.GetValue(EnableEditBoxAssistProperty);
138+
}
139+
140+
private static void EnableCheckBoxAssistPropertyChangedCallback(DependencyObject dependencyObject,
141+
DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
142+
{
143+
var dataGrid = dependencyObject as DataGrid;
144+
if (dataGrid == null) return;
145+
146+
if ((bool) dependencyPropertyChangedEventArgs.NewValue)
147+
dataGrid.PreviewMouseLeftButtonDown += DataGridOnPreviewMouseLeftButtonDown;
148+
else
149+
dataGrid.PreviewMouseLeftButtonDown -= DataGridOnPreviewMouseLeftButtonDown;
150+
}
151+
152+
private static void DataGridOnPreviewMouseLeftButtonDown(object sender,
153+
MouseButtonEventArgs mouseButtonEventArgs)
154+
{
155+
var dataGrid = (DataGrid) sender;
156+
157+
var inputHitTest =
158+
dataGrid.InputHitTest(mouseButtonEventArgs.GetPosition((DataGrid) sender)) as DependencyObject;
159+
160+
while (inputHitTest != null)
161+
{
162+
var dataGridCell = inputHitTest as DataGridCell;
163+
if (dataGridCell != null)
164+
{
165+
ToggleButton toggleButton;
166+
ComboBox comboBox;
167+
if (IsDirectHitOnEditComponent(dataGridCell, mouseButtonEventArgs, out toggleButton))
168+
{
169+
dataGrid.CurrentCell = new DataGridCellInfo(dataGridCell);
170+
dataGrid.BeginEdit();
171+
toggleButton.SetCurrentValue(ToggleButton.IsCheckedProperty, !toggleButton.IsChecked);
172+
dataGrid.CommitEdit();
173+
mouseButtonEventArgs.Handled = true;
174+
}
175+
else if (IsDirectHitOnEditComponent(dataGridCell, mouseButtonEventArgs, out comboBox))
176+
{
177+
if (_suppressComboAutoDropDown != null) return;
178+
179+
dataGrid.CurrentCell = new DataGridCellInfo(dataGridCell);
180+
dataGrid.BeginEdit();
181+
//check again, as we move to the edit template
182+
if (IsDirectHitOnEditComponent(dataGridCell, mouseButtonEventArgs, out comboBox))
183+
{
184+
_suppressComboAutoDropDown = dataGrid;
185+
comboBox.DropDownClosed += ComboBoxOnDropDownClosed;
186+
comboBox.IsDropDownOpen = true;
187+
}
188+
mouseButtonEventArgs.Handled = true;
189+
}
190+
191+
return;
192+
}
193+
194+
inputHitTest = VisualTreeHelper.GetParent(inputHitTest);
195+
}
196+
}
197+
198+
private static void ComboBoxOnDropDownClosed(object sender, EventArgs eventArgs)
199+
{
200+
_suppressComboAutoDropDown.CommitEdit();
201+
_suppressComboAutoDropDown = null;
202+
((ComboBox)sender).DropDownClosed -= ComboBoxOnDropDownClosed;
203+
}
204+
205+
private static bool IsDirectHitOnEditComponent<TControl>(ContentControl contentControl, MouseEventArgs mouseButtonEventArgs, out TControl control)
206+
where TControl : Control
207+
{
208+
control = contentControl.Content as TControl;
209+
if (control == null) return false;
210+
211+
var frameworkElement = VisualTreeHelper.GetChild(contentControl, 0) as FrameworkElement;
212+
if (frameworkElement == null) return false;
213+
214+
var transformToAncestor = (MatrixTransform) control.TransformToAncestor(frameworkElement);
215+
var rect = new Rect(
216+
new Point(transformToAncestor.Value.OffsetX, transformToAncestor.Value.OffsetY),
217+
new Size(control.ActualWidth, control.ActualHeight));
218+
219+
return rect.Contains(mouseButtonEventArgs.GetPosition(frameworkElement));
220+
}
108221
}
109222
}

‎MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.DataGrid.xaml‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -346,6 +346,7 @@
346346
<Setter Property="wpf:DataGridAssist.AutoGeneratedCheckBoxStyle" Value="{StaticResource MaterialDesignDataGridCheckBoxColumnStyle}" />
347347
<Setter Property="wpf:DataGridAssist.AutoGeneratedEditingCheckBoxStyle" Value="{StaticResource MaterialDesignDataGridCheckBoxColumnEditingStyle}" />
348348
<Setter Property="wpf:DataGridAssist.AutoGeneratedEditingTextStyle" Value="{StaticResource MaterialDesignDataGridTextColumnEditingStyle}" />
349+
<Setter Property="wpf:DataGridAssist.EnableEditBoxAssist" Value="True" />
349350
<Setter Property="Template">
350351
<Setter.Value>
351352
<ControlTemplate TargetType="{x:Type DataGrid}">

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