private static object GetCellItem(this DataGridColumn column, object item)
{
if (column == null || item == null)
{
return(null);
}
var descriptor = (PropertyDescriptor)column.GetValue(PropertyDescriptorProperty);
if (descriptor != null)
{
return(descriptor.GetValue(item));
}
var binding = (column as DataGridBoundColumn)?.Binding as Binding;
if (binding == null)
{
binding = (column as CellTemplateColumn)?.Binding as Binding;
if (binding == null)
{
return(null);
}
}
descriptor = TypeDescriptor.GetProperties(item)
.OfType <PropertyDescriptor>()
.SingleOrDefault(x => x.Name == binding.Path.Path);
column.SetCurrentValue(PropertyDescriptorProperty, descriptor);
return(descriptor?.GetValue(item));
}
private static object?GetCellItem(this DataGridColumn column, object?item)
{
if (column is null || item is null)
{
return(null);
}
var descriptor = (PropertyDescriptor)column.GetValue(PropertyDescriptorProperty);
if (descriptor != null)
{
return(descriptor.GetValue(item));
}
var binding = column switch
{
DataGridBoundColumn c => c.Binding as Binding,
CellTemplateColumn c => c.Binding as Binding,
_ => null,
};
if (binding is null)
{
return(null);
}
descriptor = TypeDescriptor.GetProperties(item)
.OfType <PropertyDescriptor>()
.SingleOrDefault(x => x.Name == binding.Path.Path);
column.SetCurrentValue(PropertyDescriptorProperty, descriptor);
return(descriptor?.GetValue(item));
}
/// <summary>
/// Apply settings to columns
/// </summary>
/// <param name="column"></param>The actual column to be modified
/// <param name="gridColumnCount"></param>The position of the actual column
/// <param name="sortDescriptions"></param>The sort setting (Accending, Decending)
public void Apply(DataGridColumn column, int gridColumnCount, SortDescriptionCollection sortDescriptions)
{
column.Width = new DataGridLength(WidthValue, WidthType);
column.SetCurrentValue(DataGridColumn.VisibilityProperty, Visibility);
column.SortDirection = SortDirection;
if (SortDirection != null)
{
sortDescriptions.Add(new SortDescription(PropertyPath, SortDirection.Value));
}
if (column.DisplayIndex != DisplayIndex)
{
var maxIndex = (gridColumnCount == 0) ? 0 : gridColumnCount - 1;
column.DisplayIndex = (DisplayIndex <= maxIndex) ? DisplayIndex : maxIndex;
}
}