private double GetComputedHeight(bool allowNaN)
{
var size = GridLengthUtil.ComputeValue(RenderSize.Height, HeaderHeight);
if (double.IsNaN(size) && !allowNaN)
{
_headerControl.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
return(_headerControl.DesiredSize.Height);
}
return(size);
}
private static void OnRowDefinitionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var row = (string)e.NewValue;
var element = d as FrameworkElement;
var parentGrid = element.Parent as Grid;
if (parentGrid == null)
{
return;
}
Grid.SetRow(element, parentGrid.RowDefinitions.Count);
parentGrid.RowDefinitions.Add(new RowDefinition()
{
Height = GridLengthUtil.ConvertToGridLength(row)
});
}
private static void OnColumnDefinitionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var column = (string)e.NewValue;
var element = d as FrameworkElement;
var parentGrid = element.Parent as Grid;
if (parentGrid == null)
{
return;
}
Grid.SetColumn(element, parentGrid.ColumnDefinitions.Count);
parentGrid.ColumnDefinitions.Add(new ColumnDefinition()
{
Width = GridLengthUtil.ConvertToGridLength(column)
});
}
private static void DataGrid_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
var dataGrid = sender as DataGrid;
#region Get User Custom DataGridColumnAttribute
var visibility = e.Column.Visibility;
var width = e.Column.Width;
var header = e.Column.Header;
var readOnly = e.Column.IsReadOnly;
var bindingMode = BindingMode.TwoWay;
var updateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
var descriptor = e.PropertyDescriptor as PropertyDescriptor;
foreach (Attribute attribute in descriptor.Attributes)
{
if (attribute is IgnoreColumnAttribute)
{
visibility = Visibility.Collapsed;
}
if (attribute is ColumnWidthAttribute)
{
width = GridLengthUtil.ConvertToDataGridLength((attribute as ColumnWidthAttribute).Width);
}
if (attribute is DisplayNameAttribute)
{
header = (attribute as DisplayNameAttribute).DisplayName;
}
if (attribute is ReadOnlyColumnAttribute)
{
readOnly = true;
}
if (attribute is ColumnBindingAttribute)
{
var binding = attribute as ColumnBindingAttribute;
bindingMode = binding.BindingMode;
updateSourceTrigger = binding.UpdateSourceTrigger;
}
}
#endregion
if (e.PropertyType.IsEnum)
{
var newColumn = new DataGridComboBoxColumn()
{
Width = width,
Header = header,
IsReadOnly = readOnly,
Visibility = visibility,
};
newColumn.ItemsSource = Enum.GetValues(e.PropertyType).Cast <Enum>();
newColumn.SelectedItemBinding = new Binding(e.PropertyName)
{
Mode = bindingMode, UpdateSourceTrigger = updateSourceTrigger
};
newColumn.EditingElementStyle = new Style(typeof(ComboBox))
{
BasedOn = (Style)dataGrid.FindResource(typeof(ComboBox))
};
newColumn.EditingElementStyle.Setters.Add(new Setter(ComboBox.HeightProperty, 30.0));
newColumn.EditingElementStyle.Setters.Add(new Setter(ComboBox.PaddingProperty, new Thickness(5, 0, 20, 0)));
e.Column = newColumn;
}
else if (e.PropertyType == typeof(bool))
{
var newColumn = new DataGridCheckBoxColumn()
{
Width = width,
Header = header,
IsReadOnly = readOnly,
Visibility = visibility,
};
newColumn.Binding = new Binding(e.PropertyName)
{
Mode = bindingMode, UpdateSourceTrigger = updateSourceTrigger
};
var userStyle = GetAutoGenerateCheckBoxStyle(dataGrid);
if (userStyle == null)
{
newColumn.ElementStyle = new Style(typeof(CheckBox))
{
BasedOn = (Style)dataGrid.FindResource(typeof(CheckBox))
};
newColumn.ElementStyle.Setters.Add(new Setter(CheckBox.BorderThicknessProperty, new Thickness(1)));
newColumn.ElementStyle.Setters.Add(new Setter(CheckBox.BackgroundProperty, Colors.Transparent.ToBrush()));
newColumn.ElementStyle.Setters.Add(new Setter(CheckBoxHelper.GlyphBrushProperty, Colors.Transparent.ToBrush()));
newColumn.EditingElementStyle = new Style(typeof(CheckBox))
{
BasedOn = (Style)dataGrid.FindResource(typeof(CheckBox))
};
newColumn.EditingElementStyle.Setters.Add(new Setter(CheckBox.BorderThicknessProperty, new Thickness(1)));
newColumn.EditingElementStyle.Setters.Add(new Setter(CheckBox.BackgroundProperty, Colors.Transparent.ToBrush()));
newColumn.EditingElementStyle.Setters.Add(new Setter(CheckBoxHelper.GlyphBrushProperty, Colors.Transparent.ToBrush()));
}
else
{
newColumn.ElementStyle = userStyle;
newColumn.EditingElementStyle = userStyle;
}
if (dataGrid.IsReadOnly)
{
newColumn.ElementStyle.Setters.Add(new Setter(CheckBox.IsEnabledProperty, false));
newColumn.ElementStyle.Setters.Add(new Setter(CheckBox.OpacityProperty, 1.0));
}
newColumn.CellStyle = new Style(typeof(DataGridCell))
{
BasedOn = (Style)dataGrid.FindResource(typeof(DataGridCell)),
};
e.Column = newColumn;
}
else
{
var newColumn = new DataGridTextColumn()
{
Width = width,
Header = header,
IsReadOnly = readOnly,
Visibility = visibility,
};
newColumn.Binding = new Binding(e.PropertyName)
{
Mode = bindingMode, UpdateSourceTrigger = updateSourceTrigger
};
newColumn.ElementStyle = new Style(typeof(TextBlock))
{
BasedOn = (Style)dataGrid.FindResource(typeof(TextBlock))
};
newColumn.ElementStyle.Setters.Add(new Setter(TextBox.MaxHeightProperty, 100.0));
newColumn.EditingElementStyle = new Style(typeof(TextBox))
{
BasedOn = (Style)dataGrid.FindResource(typeof(TextBox))
};
newColumn.EditingElementStyle.Setters.Add(new Setter(TextBox.MaxHeightProperty, 100.0));
newColumn.EditingElementStyle.Setters.Add(new Setter(TextBox.VerticalScrollBarVisibilityProperty, ScrollBarVisibility.Auto));
newColumn.EditingElementStyle.Setters.Add(new Setter(TextBox.HorizontalScrollBarVisibilityProperty, ScrollBarVisibility.Auto));
newColumn.EditingElementStyle.Setters.Add(new Setter(TextBox.MarginProperty, new Thickness(2)));
newColumn.EditingElementStyle.Setters.Add(new Setter(TextBoxHelper.FocusedShadowColorProperty, Colors.Transparent));
newColumn.CellStyle = new Style(typeof(DataGridCell))
{
BasedOn = (Style)dataGrid.FindResource(typeof(DataGridCell)),
};
newColumn.CellStyle.Setters.Add(new Setter(DataGridCell.PaddingProperty, new Thickness(0, 0, 10, 0)));
e.Column = newColumn;
}
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var length = value?.ToString();
return(GridLengthUtil.ConvertToGridLength(length));
}
