protected internal virtual void SetupDisplayMemberBinding(DataGridContext dataGridContext)
{
// Bind the cell content.
Column column = this.ParentColumn as Column;
if (column != null)
{
BindingBase displayMemberBinding = null;
object dataContext = this.ParentRow.DataContext;
// If the dataContext is our ParentRow, we do not create any binding
if (dataContext != this.ParentRow)
{
displayMemberBinding = column.GetDisplayMemberBinding();
if (displayMemberBinding == null)
{
if ((dataGridContext == null) || (dataGridContext.ItemsSourceFieldDescriptors == null))
{
throw new InvalidOperationException("An attempt was made to create a DisplayMemberBinding before the DataGridContext has been initialized.");
}
if (!DesignerProperties.GetIsInDesignMode(this))
{
bool isDataGridUnboundItemProperty;
displayMemberBinding = ItemsSourceHelper.AutoCreateDisplayMemberBinding(column, dataGridContext, dataContext, out isDataGridUnboundItemProperty);
column.IsBoundToDataGridUnboundItemProperty = isDataGridUnboundItemProperty;
}
column.IsBindingAutoCreated = true;
column.SetDisplayMemberBinding(displayMemberBinding);
}
}
if (displayMemberBinding != null)
{
m_canBeRecycled = DataCell.VerifyDisplayMemberBinding(displayMemberBinding);
BindingOperations.SetBinding(this, Cell.ContentProperty, displayMemberBinding);
XmlElement xmlElement =
this.GetValue(Cell.ContentProperty) as XmlElement;
if (xmlElement != null)
{
// Convert binding to an InnerXML binding in the case we are bound on a XmlElement
// to be able to refresh the data in the XML.
//under any circumstances, a cell that is bound to XML cannot be recycled
m_canBeRecycled = false;
BindingOperations.ClearBinding(this, Cell.ContentProperty);
this.ClearValue(Cell.ContentProperty);
Binding xmlElementBinding = new Binding("InnerXml");
xmlElementBinding.Source = xmlElement;
xmlElementBinding.Mode = BindingMode.TwoWay;
xmlElementBinding.UpdateSourceTrigger = UpdateSourceTrigger.Explicit;
BindingOperations.SetBinding(this, Cell.ContentProperty, xmlElementBinding);
}
}
}
}
protected internal virtual void SetupDisplayMemberBinding(DataGridContext dataGridContext)
{
// Bind the cell content.
var column = this.ParentColumn as Column;
if (column != null)
{
var displayMemberBinding = default(BindingBase);
var dataItem = this.ParentRow.DataContext;
// If the dataContext is our ParentRow, we do not create any binding
if (dataItem != this.ParentRow)
{
displayMemberBinding = column.GetDisplayMemberBinding();
if (displayMemberBinding == null)
{
if (dataGridContext == null)
{
throw new InvalidOperationException("An attempt was made to create a DisplayMemberBinding before the DataGridContext has been initialized.");
}
if (!DesignerProperties.GetIsInDesignMode(this))
{
var propertyDescription = ItemsSourceHelper.CreateOrGetPropertyDescriptionFromColumn(dataGridContext, column, (dataItem != null) ? dataItem.GetType() : null);
ItemsSourceHelper.UpdateColumnFromPropertyDescription(column, dataGridContext.DataGridControl.DefaultCellEditors, dataGridContext.AutoCreateForeignKeyConfigurations, propertyDescription);
displayMemberBinding = column.GetDisplayMemberBinding();
}
column.IsBindingAutoCreated = true;
}
}
if (displayMemberBinding != null)
{
m_canBeRecycled = DataCell.VerifyDisplayMemberBinding(displayMemberBinding);
BindingOperations.SetBinding(this, Cell.ContentProperty, displayMemberBinding);
var xmlElement = this.GetValue(Cell.ContentProperty) as XmlElement;
if (xmlElement != null)
{
// Convert binding to an InnerXML binding in the case we are bound on a XmlElement
// to be able to refresh the data in the XML.
//under any circumstances, a cell that is bound to XML cannot be recycled
m_canBeRecycled = false;
this.ClearDisplayMemberBinding();
var xmlElementBinding = new Binding("InnerXml");
xmlElementBinding.Source = xmlElement;
xmlElementBinding.Mode = BindingMode.TwoWay;
xmlElementBinding.UpdateSourceTrigger = UpdateSourceTrigger.Explicit;
BindingOperations.SetBinding(this, Cell.ContentProperty, xmlElementBinding);
}
}
else
{
this.ClearDisplayMemberBinding();
}
}
else
{
this.ClearDisplayMemberBinding();
}
}
