/// <summary>
/// Manages the state of the check box.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
public ASTreeViewCheckboxState ManageCheckboxState(ASTreeViewNode node)
{
if (node.ChildNodes.Count == 0)
{
return(node.CheckedState);
}
int totalChildrenCount = node.ChildNodes.Count;
int checkedNodesCount = 0;
int halfCheckedNodesCount = 0;
foreach (ASTreeViewNode curChildNode in node.ChildNodes)
{
ASTreeViewCheckboxState curState = this.ManageCheckboxState(curChildNode);
if (curState == ASTreeViewCheckboxState.Checked)
{
checkedNodesCount++;
}
if (curChildNode.CheckedState == ASTreeViewCheckboxState.Checked && curChildNode.ChildNodes.Count > 0)
{
checkedNodesCount++;
}
if (curChildNode.CheckedState == ASTreeViewCheckboxState.HalfChecked && curChildNode.ChildNodes.Count > 0)
{
halfCheckedNodesCount++;
}
}
if (halfCheckedNodesCount > 0)
{
node.CheckedState = ASTreeViewCheckboxState.HalfChecked;
}
else
{
if (checkedNodesCount == 0)
{
node.CheckedState = ASTreeViewCheckboxState.Unchecked;
}
else if (checkedNodesCount == totalChildrenCount)
{
node.CheckedState = ASTreeViewCheckboxState.Checked;
}
else
{
node.CheckedState = ASTreeViewCheckboxState.HalfChecked;
}
}
return(ASTreeViewCheckboxState.Unchecked);//return unchecked if not leaf node
}
/// <summary>
/// Initializes a new instance of the <see cref="ASTreeViewNodeCheckedEventArgs"/> class.
/// </summary>
/// <param name="nodeText">The node text.</param>
/// <param name="nodeValue">The node value.</param>
/// <param name="checkedState">State of the checked.</param>
public ASTreeViewNodeCheckedEventArgs(string nodeText, string nodeValue, ASTreeViewCheckboxState checkedState)
{
this._nodeText = nodeText;
this._nodeValue = nodeValue;
this._checkedState = checkedState;
}
