protected override void ExecuteOverride()
{
this.Inputs.Clear();
this.Description = "Initializing Query";
this.Initialize();
this.Description = "Performing additional action";
this.PerformAction(_action);
this.Description = string.Format("Start with {0}", _startingItems);
if (_action != NotifyCollectionChangedAction.Reset)
{
this.Description += string.Format(", then {0} {1}", _action.ToString(), _additionalItems);
}
}
private void InitializeAddOrRemove(NotifyCollectionChangedAction action, IList changedItems, int startingIndex)
{
if (action == NotifyCollectionChangedAction.Add)
{
InitializeAdd(action, changedItems, startingIndex);
}
else if (action == NotifyCollectionChangedAction.Remove)
{
InitializeRemove(action, changedItems, startingIndex);
}
else
{
throw new Exception(string.Format("Unsupported action: {0}", action.ToString()));
}
}
//---------------------------------------------------------------------
private void _initializeAddOrRemove(NotifyCollectionChangedAction action, IList <T> changedItems, int startingIndex)
{
if (action == NotifyCollectionChangedAction.Add)
{
_initializeAdd(action, changedItems, startingIndex);
}
else if (action == NotifyCollectionChangedAction.Remove)
{
_initializeRemove(action, changedItems, startingIndex);
}
else
{
Contract.Assert(false, $"Unsupported action: { action.ToString() }");
}
}
private void UpdateView(int rowIndex, int count, NotifyCollectionChangedAction action)
{
if (this.View == null || this.treeGrid.TreeGridPanel == null)
{
return;
}
if (action == NotifyCollectionChangedAction.Add)
{
this.treeGrid.TreeGridPanel.InsertRows(rowIndex, count);
}
else if (action == NotifyCollectionChangedAction.Remove)
{
this.treeGrid.TreeGridPanel.RemoveRows(rowIndex, count);
}
else
{
throw new NotImplementedException("UpdateView not implemented for" + action.ToString());
}
this.treeGrid.TreeGridPanel.UpdateScrollBars();
this.treeGrid.TreeGridPanel.InvalidateMeasureInfo();
}
private void InitializeAddOrRemove(NotifyCollectionChangedAction action, IList changedItems, int startingIndex)
{
if (action == NotifyCollectionChangedAction.Add)
InitializeAdd(action, changedItems, startingIndex);
else if (action == NotifyCollectionChangedAction.Remove)
InitializeRemove(action, changedItems, startingIndex);
else
throw new Exception(string.Format("Unsupported action: {0}", action.ToString()));
}
private void UpdateDataRow(int index, int count, NotifyCollectionChangedAction action)
{
if (this.treeGrid.TreeGridPanel == null)
{
return;
}
var datarow = this.treeGrid.RowGenerator.Items.FirstOrDefault(row => row.RowIndex == index);
var level = count;
if (datarow != null)
{
if (action == NotifyCollectionChangedAction.Add)
{
var rowItems = this.treeGrid.RowGenerator.Items.Where(rowInfo => rowInfo.RowIndex >= index).OrderBy(item => item.RowIndex);
rowItems.ForEach(row =>
{
row.SuspendUpdateStyle();
if (row.RowType != TreeRowType.HeaderRow)
{
row.RowIndex += level;
}
row.ResumeUpdateStyle();
});
}
else if (action == NotifyCollectionChangedAction.Remove)
{
datarow.RowIndex = -1;
var rowItems = this.treeGrid.RowGenerator.Items.Where(rowInfo => rowInfo.RowIndex >= (index + count)).OrderBy(item => item.RowIndex);
var removedItems = this.treeGrid.RowGenerator.Items.Where(rowInfo => ((rowInfo.RowIndex < (index + count)) && rowInfo.RowIndex >= index));
removedItems.ForEach(ResetRowIndex);
rowItems.ForEach(row =>
{
row.SuspendUpdateStyle();
if (row.RowType != TreeRowType.HeaderRow)
{
row.RowIndex -= level;
}
row.ResumeUpdateStyle();
});
}
else
{
throw new NotImplementedException("UpdateDataRow is not implemented for" + action.ToString());
}
}
UpdateView(index, count, action);
}
private void RefreshView(int rowIndex, int count, NotifyCollectionChangedAction action, int recordIndex = 0, int recordCount = 0)
{
if (this.View == null || this.treeGrid.TreeGridPanel == null)
{
return;
}
if (action == NotifyCollectionChangedAction.Add)
{
this.treeGrid.TreeGridPanel.InsertRows(rowIndex, count);
}
else if (action == NotifyCollectionChangedAction.Remove)
{
this.treeGrid.TreeGridPanel.RemoveRows(rowIndex, count);
}
else
{
throw new NotImplementedException("RefreshView not implemented for" + action.ToString());
}
this.RefreshDataRows();
this.treeGrid.TreeGridPanel.UpdateScrollBars();
}