根据MySQL表C＃检查Treeview节点

Question

表A [模块]：

module_id     module_name
==========================
1             Articles
2             Suppliers
3             Cash

表B [ModulesOptions]：

moduleoption_id     module_id     moduleoption_name
====================================================
1                   1             New Article
2                   1             Edit Article
3                   2             New Supplier
4                   2             Edit Supplier
5                   3             New Invoice

表C [usersprivileges]

user_id       moduleoption_id
==========================
1             1
1             3

填充TreeStateView代码:(仅创建父节点和子节点但尚未创建标记）

    DataRelation DataRelation = DataSet.Relations.Add("Modules_to_Modules_Options", DataSet.Tables["Modules"].Columns["module_id"], DataSet.Tables["ModulesOptions"].Columns["module_id"]);
    foreach (DataRow DataRow in DataSet.Tables["Modules"].Rows)
    {
        TreeNode TreeNode = new TreeNode();
        TreeNode.Text = DataRow["module_name"].ToString();
        TreeNode.Tag = DataRow["module_id"].ToString();
        TreeNode.StateImageIndex = 0;
        TreeNode.Expand();

        foreach (DataRow DataRowChild in DataRow.GetChildRows("Modules_to_Modules_Options"))
        {
            TreeNode TreeNodeChild = new TreeNode();
            TreeNodeChild.Text = DataRowChild["moduleoption_name"].ToString();
            TreeNodeChild.Tag = DataRowChild["moduleoption_id"].ToString();
            TreeNode.Nodes.Add(TreeNodeChild);
        }
        this.UsersEdit_TreeView_ModulesOptions.Nodes.Add(TreeNode);
    }

TreeView控件具有属性Checkboxes = true

每个父节点都有3个状态：

TreeNode.StateImageIndex = 0; // No Checked
TreeNode.StateImageIndex = 1; // Checked
TreeNode.StateImageIndex = 2; // Mixed

我需要根据表（usersprivileges）标记每个父节点（模块）

If (user have all modulesoptions privileges)
{
 TreeNode.StateImageIndex = 1; // Checked
} elseif (user have some modulesoptions checked)
{
 TreeNode.StateImageIndex = 2; // Mixed
} else {
TreeNode.StateImageIndex = 0; // No Checked
}

根据用户（user_id：1）

+---Articles (Mixed)
|   |
|   +--------New Article <-- (Checked)
|   +--------Edit Article <-- (NO Checked)
|
+---Suppliers (NO Checked)
|   |
|   +--------New Supplier <-- (NO Checked)
|   +--------Edit Supplier <--(NO Checked)
|
+---Cash (Checked)
|   |
|   +--------New Invoice <-- (Checked)
|