/// <summary>
/// Apply more complex/recursive checks to a tree node.
/// </summary>
/// <param name="node">The node.</param>
/// <param name="newStates">The new states.</param>
public void ChangeNodesCheckStates(
TreeNode node,
NodesCheckState newStates)
{
if (node == null)
{
throw new ArgumentNullException(@"node");
}
else
{
switch (newStates)
{
case NodesCheckState.CheckAllChilds:
DeepSetCheckState(node, CheckState.Checked);
break;
case NodesCheckState.UncheckAllChilds:
DeepSetCheckState(node, CheckState.Unchecked);
break;
case NodesCheckState.UpdateStateFromChilds:
int checkedChildCount =
DeepCountChildsWithState(
node,
CheckState.Checked);
int uncheckedChildCount =
DeepCountChildsWithState(
node,
CheckState.Unchecked);
int indeterminateChildCount =
DeepCountChildsWithState(
node,
CheckState.Indeterminate);
if (indeterminateChildCount > 0)
{
InternalSetNodeCheckState(
node,
CheckState.Indeterminate);
}
else
{
if (checkedChildCount > 0)
{
if (uncheckedChildCount > 0)
{
InternalSetNodeCheckState(
node,
CheckState.Indeterminate);
}
else
{
InternalSetNodeCheckState(
node,
CheckState.Checked);
}
}
else
{
InternalSetNodeCheckState(
node,
CheckState.Unchecked);
}
}
break;
case NodesCheckState.UpdateParentStates:
node = node.Parent;
while (node != null)
{
ChangeNodesCheckStates(
node,
NodesCheckState.UpdateStateFromChilds);
node = node.Parent;
}
break;
default:
Debug.Assert(
false,
string.Format(
@"Unknown NodesCheckState enum value.",
newStates));
break;
}
}
}
/// <summary>
/// Apply more complex/recursive checks to a tree node.
/// </summary>
/// <param name="node">The node.</param>
/// <param name="newStates">The new states.</param>
public void ChangeNodesCheckStates(
TreeNode node,
NodesCheckState newStates )
{
if ( node == null )
{
throw new ArgumentNullException( @"node" );
}
else
{
switch ( newStates )
{
case NodesCheckState.CheckAllChilds:
DeepSetCheckState( node, CheckState.Checked );
break;
case NodesCheckState.UncheckAllChilds:
DeepSetCheckState( node, CheckState.Unchecked );
break;
case NodesCheckState.UpdateStateFromChilds:
int checkedChildCount =
DeepCountChildsWithState(
node,
CheckState.Checked );
int uncheckedChildCount =
DeepCountChildsWithState(
node,
CheckState.Unchecked );
int indeterminateChildCount =
DeepCountChildsWithState(
node,
CheckState.Indeterminate );
if ( indeterminateChildCount > 0 )
{
InternalSetNodeCheckState(
node,
CheckState.Indeterminate );
}
else
{
if ( checkedChildCount > 0 )
{
if ( uncheckedChildCount > 0 )
{
InternalSetNodeCheckState(
node,
CheckState.Indeterminate );
}
else
{
InternalSetNodeCheckState(
node,
CheckState.Checked );
}
}
else
{
InternalSetNodeCheckState(
node,
CheckState.Unchecked );
}
}
break;
case NodesCheckState.UpdateParentStates:
node = node.Parent;
while ( node != null )
{
ChangeNodesCheckStates(
node,
NodesCheckState.UpdateStateFromChilds );
node = node.Parent;
}
break;
default:
Debug.Assert(
false,
string.Format(
@"Unknown NodesCheckState enum value.",
newStates ) );
break;
}
}
}
