public override void OnUpdateEditBinding(DataColumnBase dataColumn, GridHeaderCellControl element, object dataContext)
{
GridColumn column = dataColumn.GridColumn;
#if WPF
if (DataGrid != null && !DataGrid.IsLoaded)
{
column = column.Clone() as GridColumn;
}
#endif
element.ClearValue(GridHeaderCellControl.ContentProperty);
element.Column = column;
if (column.HeaderText == null)
{
column.HeaderText = column.MappingName;
}
element.SetValue(ContentControl.ContentProperty, column.HeaderText);
//We need bind the HorizontalHeaderContentAlignment value if only column has HorizontalHeaderContentAlignment value
if (column.ReadLocalValue(GridColumn.HorizontalHeaderContentAlignmentProperty) != DependencyProperty.UnsetValue)
{
element.SetValue(Control.HorizontalContentAlignmentProperty, column.HorizontalHeaderContentAlignment);
}
else
{
element.ClearValue(Control.HorizontalContentAlignmentProperty);
}
element.Update();
element.DataContext = column;
}
/// <summary>
/// Computes the Padding for the Display UIElement.
/// </summary>
/// <param name="column">The column.</param>
/// <returns></returns>
private Thickness ProcessUIElementPadding(GridColumn column)
{
var padLeft = column.Padding.Left;
var padRight = column.Padding.Right;
var padTop = column.Padding.Top;
var padBotton = column.Padding.Bottom;
var padding = column.ReadLocalValue(GridColumn.PaddingProperty);
#if WinRT || UNIVERSAL
return(padding != DependencyProperty.UnsetValue
? new Thickness(3 + padLeft, 3 + padTop, 5 + padRight, 5 + padBotton)
: new Thickness(3, 1, 6, 6));
#else
return(padding != DependencyProperty.UnsetValue
? new Thickness(3 + padLeft, 1 + padTop, 3 + padRight, 1 + padBotton)
: new Thickness(3, 1, 3, 1));
#endif
}
private static Thickness ProcessUIElementPadding(GridColumn column)
{
var padLeft = column.Padding.Left;
var padRight = column.Padding.Right;
var padTop = column.Padding.Top;
var padBotton = column.Padding.Bottom;
var padding = column.ReadLocalValue(GridColumn.PaddingProperty);
#if WinRT || UNIVERSAL
return(padding != DependencyProperty.UnsetValue
? new Thickness(7.5 + padLeft, padTop, 2 + padRight, padBotton)
: new Thickness(7.5, 1, 2, 0));
#else
return(padding != DependencyProperty.UnsetValue
? new Thickness(1 + padLeft, 0 + padTop, 1 + padRight, 0 + padBotton)
: new Thickness(1, 0, 1, 0));
#endif
}
/// <summary>
/// Computes the Padding for the Display UIElement.
/// </summary>
/// <param name="column">The column.</param>
/// <remarks>Padding Cannot be applied at RunTime, as Currently We dont haven't constructed Padding via Binding Expression</remarks>
/// <returns></returns>
private static Thickness ProcessUIElementPadding(GridColumn column)
{
var padLeft = column.Padding.Left;
var padRight = column.Padding.Right;
var padTop = column.Padding.Top;
var padBotton = column.Padding.Bottom;
var padding = column.ReadLocalValue(GridColumn.PaddingProperty);
#if WPF
return(padding != DependencyProperty.UnsetValue
? new Thickness(3 + padLeft, 6 + padTop, 3 + padRight, 5 + padBotton)
: new Thickness(3, 1, 3, 1));
#else
return(padding != DependencyProperty.UnsetValue
? new Thickness(3 + padLeft, padTop, 2 + padRight, padBotton)
: new Thickness(3, 1, 2, 0));
#endif
}
internal bool CanResizeColumn(GridColumn column)
{
if (column == null)
{
return(false);
}
bool canResizeColumn = false;
var resizeColumn = column.ReadLocalValue(GridColumn.AllowResizingProperty);
if (resizeColumn != DependencyProperty.UnsetValue)
{
canResizeColumn = column.AllowResizing;
}
if ((resizeColumn == DependencyProperty.UnsetValue) && this.dataGrid.AllowResizingColumns)
{
canResizeColumn = true;
}
return(canResizeColumn);
}
