// Obtain folder check state for hierarchy folder mode.
public Boolean?getFolderCheckState(BaseTreeNode treeNode)
{
if (treeNode.Children.Count < 1)
{
return(true);
}
else
{
CheckState firstItem = Column.GetCheckState(treeNode.Children[0]);
for (int i = 1; i < treeNode.Children.Count; i++)
{
if (Column.GetCheckState(treeNode.Children[i]) != firstItem)
{
firstItem = CheckState.Indeterminate;
break;
}
}
switch (firstItem)
{
case CheckState.Checked: return(true);
case CheckState.Unchecked: return(false);
default: return(null);
}
}
}
/// <summary>
/// Toggle the check at the check box of the given cell
/// </summary>
/// <param name="rowObject"></param>
/// <param name="column"></param>
public virtual void ToggleSubItemCheckBox(object rowObject, OLVColumn column)
{
CheckState currentState = column.GetCheckState(rowObject);
CheckState newState = CalculateToggledCheckState(column, currentState);
SubItemCheckingEventArgs args = new SubItemCheckingEventArgs(column, this.ModelToItem(rowObject), column.Index, currentState, newState);
this.OnSubItemChecking(args);
if (args.Canceled)
return;
switch (args.NewValue) {
case CheckState.Checked:
this.CheckSubItem(rowObject, column);
break;
case CheckState.Indeterminate:
this.CheckIndeterminateSubItem(rowObject, column);
break;
case CheckState.Unchecked:
this.UncheckSubItem(rowObject, column);
break;
}
}
/// <summary>
/// Is there a check at the check box at the given cell
/// </summary>
/// <param name="rowObject"></param>
/// <param name="column"></param>
public virtual bool IsSubItemChecked(object rowObject, OLVColumn column)
{
if (column != null && rowObject != null && column.CheckBoxes)
return (column.GetCheckState(rowObject) == CheckState.Checked);
else
return false;
}
/// <summary>
/// Is there a check at the check box at the given cell
/// </summary>
/// <param name="rowObject"></param>
/// <param name="column"></param>
public virtual bool IsSubItemChecked(object rowObject, OLVColumn column) {
if (column == null || rowObject == null || !column.CheckBoxes)
return false;
return (column.GetCheckState(rowObject) == CheckState.Checked);
}