public override void OnUpdateEditBinding(TreeDataColumnBase dataColumn, TreeGridHeaderCell element, object dataContext)
{
TreeGridColumn column = dataColumn.TreeGridColumn;
// WPF-37159 - No need to clone the column. So below line is commented.
//#if WPF
// if (TreeGrid != null && !TreeGrid.IsLoaded)
// column = column.Clone() as TreeGridColumn;
//#endif
element.ClearValue(TreeGridHeaderCell.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(TreeGridColumn.HorizontalHeaderContentAlignmentProperty) != DependencyProperty.UnsetValue)
{
element.SetValue(Control.HorizontalContentAlignmentProperty, column.HorizontalHeaderContentAlignment);
}
else
{
element.ClearValue(Control.HorizontalContentAlignmentProperty);
}
element.Update();
element.DataContext = column;
}
public override void OnInitializeEditElement(TreeDataColumnBase dataColumn, TreeGridHeaderCell uiElement, object dataContext)
{
TreeGridColumn column = dataColumn.TreeGridColumn;
//#if WPF
// if (!TreeGrid.IsLoaded)
// column = column.Clone() as TreeGridColumn;
//#endif
uiElement.TreeGrid = this.TreeGrid;
uiElement.Column = dataColumn.TreeGridColumn;
if (column != null)
{
if (column.HeaderText == null)
{
column.HeaderText = column.MappingName;
}
uiElement.SetValue(ContentControl.ContentProperty, column.HeaderText);
//We need bind the HorizontalHeaderContentAlignment value if only column has HorizontalHeaderContentAlignment value
if (column.ReadLocalValue(TreeGridColumn.HorizontalHeaderContentAlignmentProperty) != DependencyProperty.UnsetValue)
{
uiElement.SetValue(Control.HorizontalContentAlignmentProperty, column.HorizontalHeaderContentAlignment);
}
else
{
uiElement.ClearValue(Control.HorizontalContentAlignmentProperty);
}
uiElement.Update();
uiElement.DataContext = column;
}
}
/// <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(TreeGridColumn 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(TreeGridColumn.PaddingProperty);
#if WPF
return(padding != DependencyProperty.UnsetValue
? new Thickness(3 + padLeft, 2 + padTop, 3 + padRight, 5 + padBotton)
: new Thickness(3, 1, 3, 1));
#else
return(padding != DependencyProperty.UnsetValue
? new Thickness(2 + padLeft, 2 + padTop, 3 + padRight, 2 + padBotton)
: new Thickness(2, 2, 3, 2));
#endif
}
