internal DataGridContextAutomationPeer(
DataGridControl dataGridControl,
DataGridContext parentDataGridContext,
object parentItem,
DetailConfiguration detailConfiguration)
{
if (dataGridControl == null)
{
throw new ArgumentNullException("dataGridControl");
}
if (parentDataGridContext == null)
{
m_dataGridContext = dataGridControl.DataGridContext;
}
else
{
m_dataGridContext = parentDataGridContext.GetChildContext(parentItem, detailConfiguration);
}
if (m_dataGridContext != null)
{
m_dataGridContext.Peer = this;
}
m_dataGridControl = dataGridControl;
m_parentDataGridContext = parentDataGridContext;
m_parentItem = parentItem;
m_detailConfiguration = detailConfiguration;
m_dataChildren = new Hashtable(0);
m_headerFooterChildren = new Hashtable(0);
}
internal DataGridContextAutomationPeer(
DataGridControl dataGridControl,
DataGridContext parentDataGridContext,
object parentItem,
DetailConfiguration detailConfiguration )
{
if( dataGridControl == null )
throw new ArgumentNullException( "dataGridControl" );
if( parentDataGridContext == null )
{
m_dataGridContext = dataGridControl.DataGridContext;
}
else
{
m_dataGridContext = parentDataGridContext.GetChildContext( parentItem, detailConfiguration );
}
if( m_dataGridContext != null )
m_dataGridContext.Peer = this;
m_dataGridControl = dataGridControl;
m_parentDataGridContext = parentDataGridContext;
m_parentItem = parentItem;
m_detailConfiguration = detailConfiguration;
m_dataChildren = new Hashtable( 0 );
m_headerFooterChildren = new Hashtable( 0 );
}
public static IEnumerable <DiffItemInfo> GetVisibleItems(DataGridContext gridContext)
{
foreach (var item in gridContext.Headers)
{
yield return(new DiffItemInfo(gridContext, item));
}
foreach (var item in gridContext.Items)
{
yield return(new DiffItemInfo(gridContext, item));
foreach (var detail in gridContext.DetailConfigurations)
{
var childContext = gridContext.GetChildContext(item, detail);
if (childContext != null)
{
foreach (var i in GetVisibleItems(childContext))
{
yield return(i);
}
}
}
}
foreach (var item in gridContext.Footers)
{
yield return(new DiffItemInfo(gridContext, item));
}
}
public static IEnumerable <object> GetScrollableItems(this DataGridContext gridContext)
{
foreach (var item in gridContext.Headers)
{
yield return(item);
}
foreach (var item in gridContext.Items)
{
yield return(item);
foreach (var detail in gridContext.DetailConfigurations)
{
var childContext = gridContext.GetChildContext(item, detail);
if (childContext != null)
{
foreach (var i in GetScrollableItems(childContext))
{
yield return(i);
}
}
}
}
foreach (var item in gridContext.Footers)
{
yield return(item);
}
}
private static IEnumerable <DataGridContext> GetChildContexts(DataGridContext dataGridContext, object item)
{
Debug.Assert(dataGridContext != null);
Debug.Assert(item != null);
return(from detailConfig in dataGridContext.DetailConfigurations
let childContext = dataGridContext.GetChildContext(item, detailConfig)
where (childContext != null)
select childContext);
}
void ExpandOrCollpase(object item, DataGridContext context, bool IsExpand)
{
if (item == null || context == null)
{
return;
}
if (!context.AreDetailsExpanded(item) && IsExpand)
{
context.ExpandDetails(item);
}
else if (!IsExpand)
{
context.CollapseDetails(item);
return;
}
else
{
return;
}
var itemType = item.GetType();
// перебираем все дочерние ветки
foreach (var detail in context.DetailConfigurations)
{
var childContext = context.GetChildContext(item, detail.RelationName);
// смотрим, не пустая ли ветка
if ((childContext != null) && (childContext.Items.Count > 0) && (detail.Visible))
{
var propertyInfo = itemType.GetProperty(detail.RelationName);
var childrenItems = propertyInfo.GetValue(item, null) as IEnumerable;
if (childrenItems != null)
{
foreach (var childrenItem in childrenItems)
{
// строим дочернюю ветку со смещением первого столбца на 1 вправо
ExpandOrCollpase(childrenItem, childContext, IsExpand);
}
}
}
}
}
public static IEnumerable <DiffItemInfo> GetItems(DataGridContext gridContext)
{
for (var i = 0; i < gridContext.Items.Count; i++)
{
var item = gridContext.Items.GetItemAt(i);
yield return(new DiffItemInfo(gridContext, item));
for (var j = 0; j < gridContext.DetailConfigurations.Count; j++)
{
var detail = gridContext.DetailConfigurations[j];
var childContext = gridContext.GetChildContext(item, detail);
if (childContext != null)
{
foreach (var childItem in GetItems(childContext))
{
yield return(childItem);
}
}
}
}
}
public static object GetPrevItem(this DataGridContext gridContext, object currentItem, bool ignoreChilds)
{
var index = gridContext.Items.IndexOf(currentItem);
var prevIndex = index - 1;
if (ignoreChilds == false)
{
for (var i = gridContext.DetailConfigurations.Count - 1; i >= 0; i--)
{
var detail = gridContext.DetailConfigurations[i];
var childContext = gridContext.GetChildContext(currentItem, detail);
if (childContext != null)
{
if (childContext.Items.Count > 0)
{
return(childContext.Items.GetItemAt(childContext.Items.Count - 1));
}
}
}
}
if (prevIndex < 0)
{
if (gridContext.ParentDataGridContext != null)
{
return(GetPrevItem(gridContext.ParentDataGridContext, gridContext.ParentItem, true));
}
else
{
return(null);
}
}
else
{
return(gridContext.Items.GetItemAt(prevIndex));
}
}
public static object GetNextItem(this DataGridContext gridContext, object currentItem, bool ignoreChilds)
{
var index = gridContext.Items.IndexOf(currentItem);
var nextIndex = index + 1;
if (ignoreChilds == false)
{
foreach (var detail in gridContext.DetailConfigurations)
{
var childContext = gridContext.GetChildContext(currentItem, detail);
if (childContext != null)
{
if (childContext.Items.Count > 0)
{
return(childContext.Items.GetItemAt(0));
}
}
}
}
if (gridContext.Items.Count <= nextIndex)
{
if (gridContext.ParentDataGridContext != null)
{
return(GetNextItem(gridContext.ParentDataGridContext, gridContext.ParentItem, true));
}
else
{
return(null);
}
}
else
{
return(gridContext.Items.GetItemAt(nextIndex));
}
}
