public RowState Clone()
{
RowState rowState = new RowState();
rowState.m_itemValidationError = m_itemValidationError;
rowState.m_isDirty = m_isDirty;
return rowState;
}
public RowState Clone()
{
RowState rowState = new RowState();
rowState.m_itemValidationError = m_itemValidationError;
rowState.m_isDirty = m_isDirty;
return(rowState);
}
// Used to initialize/clear Column.CurrentRowInEditionCellState for each cell in the row passed as parameter
internal void UpdateCurrentRowInEditionCellStates( Row newCurrentItemContainer, object newCurrentItemInEdition )
{
if( newCurrentItemInEdition != m_currentItemInEdition )
{
Row currentRowInEdition = null;
if( m_currentItemInEdition != null )
{
// Get the container for m_currentItemInEdition
currentRowInEdition = Row.FromContainer( this.CurrentContext.GetContainerFromItem( m_currentItemInEdition ) );
if( newCurrentItemInEdition != null )
{
if( ( currentRowInEdition != null ) && ( currentRowInEdition.IsBeingEdited ) )
throw new InvalidOperationException( "An attempt was made to place a row in edit mode while another row is being edited." );
}
}
// The newCurrentItemContainer is null
if( newCurrentItemContainer == null )
{
if( currentRowInEdition != null )
{
// We must clear the edition state of the old Row in edition
foreach( Cell cell in currentRowInEdition.CreatedCells )
{
ColumnBase parentColumn = cell.ParentColumn;
if( parentColumn == null )
continue;
parentColumn.CurrentRowInEditionCellState = null;
}
}
}
m_currentItemInEdition = newCurrentItemInEdition;
m_currentRowInEditionState = new RowState();
this.UpdateIsBeingEdited();
}
// It may occur that the newCurrentItemInEdition was set for a
// Container that is currently out of view, so the newCurrentItemContainer
// was null at this time. We must then ensure the CellStates are
// create for the newCurrentItemContainer when not null even if
// newCurrentItemInEdition == m_currentItemInEdition
if( newCurrentItemContainer != null )
{
foreach( Cell cell in newCurrentItemContainer.CreatedCells )
{
ColumnBase parentColumn = cell.ParentColumn;
if( parentColumn == null )
continue;
CellState cellState = new CellState();
cellState.SetContentBeforeRowEdition( cell.Content );
parentColumn.CurrentRowInEditionCellState = cellState;
}
}
}
private void RestoreEditionState( RowState savedState, ColumnBase currentColumn )
{
if( savedState == null )
return;
savedState = savedState.Clone();
Dictionary<ColumnBase, CellState> cachedCellStates = new Dictionary<ColumnBase, CellState>();
foreach( Cell cell in this.CreatedCells )
{
ColumnBase parentColumn = cell.ParentColumn;
if( parentColumn == null )
continue;
var currentRowInEditionCellState = parentColumn.CurrentRowInEditionCellState;
if( currentRowInEditionCellState != null )
cachedCellStates.Add( parentColumn, currentRowInEditionCellState.Clone() );
}
try
{
this.BeginEdit();
}
catch( DataGridException )
{
// We swallow exception if it occurs because of a validation error or Cell was read-only or
// any other GridException.
}
if( this.IsBeingEdited )
{
this.SetValidationError( savedState.ItemValidationError );
this.SetIsDirty( savedState.IsDirty );
foreach( Cell cell in this.CreatedCells )
{
ColumnBase parentColumn = cell.ParentColumn;
CellState cachedCellState;
if( cachedCellStates.TryGetValue( parentColumn, out cachedCellState ) )
parentColumn.CurrentRowInEditionCellState = cachedCellState;
cell.RestoreEditionState( currentColumn );
}
}
}