Question

C# 遍历当前选中节点的子节点

如题 这个怎么实现？

Answer 1

#region ===获取指定节点下已选择的值===
/// <summary>
/// 获取指定节点下已选择的值
/// </summary>
/// <param name="Node"></param>
/// <returns></returns>
public static string GetSelectedChildNodeVText(TreeNode Node)
{
string StrChecked = "";
foreach (TreeNode nd in Node.ChildNodes)
{
if (nd.Checked)
{
StrChecked += nd.Text + ",";
}
if (nd.ChildNodes.Count > 0)
{
StrChecked += GetSelectedChildNodeVText(nd);
}
}
StrChecked = StrChecked.TrimStart(',');
return StrChecked;
}
#endregion

#region===获取指定节点下已选择的文本内容===
/// <summary>
/// 获取指定节点下已选择的文本内容
/// </summary>
/// <param name="Node"></param>
/// <returns></returns>
public static string GetSelectedChildNodeVValue(TreeNode Nodes)
{
string StrCheckedValue = "";
foreach (TreeNode nd in Nodes.ChildNodes)
{
if (nd.Checked)
{
StrCheckedValue += nd.Value + ",";
}
if (nd.ChildNodes.Count > 0)
{
StrCheckedValue += GetSelectedChildNodeVValue(nd);
}
}
StrCheckedValue = StrCheckedValue.TrimStart(',');
return StrCheckedValue;
}
#endregion

Answer 2

这个肯定是要用递归的！！
//在树和树的节点下面递归去找，看有没有等于该ID的节点，有的话就选中
private void getnodes(TreeNode node, string id)
{
//NODE为空的话就直接在树下面找
if (node == null)
{
foreach (TreeNode nodeaa in treeDepts.Nodes)
{
if (nodeaa.Value == id)
{
nodeaa.Checked = true;
break;
}
foreach (TreeNode item in nodeaa.ChildNodes)
{
getnodes(item, id);
}

}
}
//不为空就在传进来的节点下面找
else
{
if (node.Value == id)
{
node.Checked = true;
}
foreach (TreeNode item in node.ChildNodes)
{
getnodes(item, id);
}
}
}

Answer 3

#region ===获取指定节点下已选择的值===
/// <summary>
/// 获取指定节点下已选择的值
/// </summary>
/// <param name="Node"></param>
/// <returns></returns>
public static string GetSelectedChildNodeVText(TreeNode Node)
{
string StrChecked = "";
foreach (TreeNode nd in Node.ChildNodes)
{
if (nd.Checked)
{
StrChecked += nd.Text + ",";
}
if (nd.ChildNodes.Count > 0)
{
StrChecked += GetSelectedChildNodeVText(nd);
}
}
StrChecked = StrChecked.TrimStart(',');
return StrChecked;
}
#endregion

#region===获取指定节点下已选择的文本内容===
/// <summary>
/// 获取指定节点下已选择的文本内容
/// </summary>
/// <param name="Node"></param>
/// <returns></returns>
public static string GetSelectedChildNodeVValue(TreeNode Nodes)
{
string StrCheckedValue = "";
foreach (TreeNode nd in Nodes.ChildNodes)
{
if (nd.Checked)
{
StrCheckedValue += nd.Value + ",";
}
if (nd.ChildNodes.Count > 0)
{
StrCheckedValue += GetSelectedChildNodeVValue(nd);
}
}
StrCheckedValue = StrCheckedValue.TrimStart(',');
return StrCheckedValue;
}
#endregion

Answer 4

this.treeView1.SelectedNode.Nodes[]数组。