【转】我刚做的一个TreeView的CheckBox进行选中插入数据库，从数据库中读取数据后让CheckBox勾选的代码!

转自：http://www.cnblogs.com/12go/archive/2011/08/27/2155581.html

#region 绑定角色

/// <summary>

/// 绑定权限信息

/// </summary>

protected void BindgvRoles()

{

string sql = "select * from GM_FileKind";

DataTable dt = OADBHelper.GetDataTable(sql);

this.gvRoles.DataSource = dt;

this.DataBind();

}

#endregion

#region TreeView 表员工表的显示至TreeView控件

/// <summary>

/// Tree绑定

/// </summary>

public void BindTree()

{

this.tvUsers.Nodes.Clear();

string sql = "select * from Accounts_UserDepartment";

DataView dv = OADBHelper.GetDataTable(sql).DefaultView;

//dv.RowFilter = "Kind=0";

foreach (DataRowView drv in dv)

{

TreeNode tn = new TreeNode();

tn.Text = drv["Dept"].ToString();

tn.Value = drv["AutoID"].ToString();

//tn.NavigateUrl = drv["KURL"].ToString();

tn.SelectAction = TreeNodeSelectAction.Expand;

tn.Expanded = false;

this.tvUsers.Nodes.Add(tn);

addChildNodes(tn);

}

}

/// <summary>

/// 绑定子节点

/// </summary>

/// <param name="tn"></param>

public void addChildNodes(TreeNode tn)

{

string sql = "select UserID,RealName from Accounts_Users where Dept='" + tn.Text + "'";

DataView dv = OADBHelper.GetDataTable(sql).DefaultView;

foreach (DataRowView drv in dv)

{

TreeNode childtn = new TreeNode();

childtn.Text = drv["RealName"].ToString();

childtn.Value = drv["UserID"].ToString();

//childtn.NavigateUrl = drv["KURL"].ToString();

childtn.Expanded = false;

tn.ChildNodes.Add(childtn);

addChildNodes(childtn);

}

}

#endregion

#region 从数据库中读取数据，然后勾选根节点的相应的CheckBox

/// <summary>

/// 从数据库中读取数据，然后勾选根节点的相应的CheckBox

/// </summary>

/// <param name="RoleId"></param>

protected void BindTreeRoot(int RoleId, TreeNodeCollection treenode)

{

string sql = "";

foreach (TreeNode nodes in treenode)

{

if (nodes.ChildNodes.Count > 0)

{

//查找所有权限的人的部门Id

sql = "select Distinct[DepId] from GM_Roles where FKId=" + RoleId;

DataView dv = OADBHelper.GetDataTable(sql).DefaultView;

foreach (DataRowView drv in dv)

{

foreach (TreeNode node in treenode)

{

if (drv["DepId"].ToString() == node.Value.ToString())

{

node.Checked = true;

}

BindTreeRoot(RoleId, node.ChildNodes);

}

}

}

else

{

//根据角色ID得到相应的的员工ID

sql = "select UserID from GM_Roles where FKId='" + RoleId + "'";

DataView dv = OADBHelper.GetDataTable(sql).DefaultView;

foreach (DataRowView drv in dv)

{

foreach (TreeNode node in treenode)

{

if (drv["UserID"].ToString() == node.Value.ToString())

{

node.Checked = true;

}

BindTreeRoot(RoleId, node.ChildNodes);

}

}

}

}

}

#endregion

#region 设置权限

/// <summary>

/// 设置权限

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

protected void lkbtnModify_Command(object sender, CommandEventArgs e)

{

int Id = Convert.ToInt32(e.CommandArgument.ToString());

ViewState["RoleId"] = Id;

BindTree();

string sql = "select FKName from GM_FileKind where FKId=" + Id;

lblRoles.Text = OADBHelper.GetString(sql);

BindTreeRoot(Id, this.tvUsers.Nodes);

}

#endregion

#region 权限设置操作

/// <summary>

/// 权限设置操作

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

protected void btnModify_Click(object sender, EventArgs e)

{

if (this.lblRoles.Text == "没有选择角色")

{

Response.Write("<script>alert('请选择一个角色名称！');</script>");

}

else

{

int RoleId = Convert.ToInt32(ViewState["RoleId"].ToString());

string sql = "select UserId from UserId where FKId=" + RoleId;

DeleteRoles(Convert.ToInt32(ViewState["RoleId"].ToString()));

this.GetCheckBoxChecked(this.tvUsers.Nodes);

Response.Write("<script>alert('角色设置成功！');</script>");

}

}

#endregion

#region 添加选定的人到角色表(checkbox选中的，插入数据库)

/// <summary>

/// 选择要添加的角色

/// </summary>

/// <param name="treeNode"></param>

private void GetCheckBoxChecked(TreeNodeCollection treeNode)

{

foreach (TreeNode node in treeNode)

{

if (node.Checked)

{

if (node.ChildNodes.Count == 0)

{

//执行保存

int UserId = Convert.ToInt32(node.Value.ToString());

InertRoleMember(Convert.ToInt32(ViewState["RoleId"].ToString()), UserId, Convert.ToInt32(ViewState["DepatId"].ToString()));

this.GetCheckBoxChecked(node.ChildNodes);

}

else

{

ViewState["DepatId"] = node.Value.ToString();

GetCheckBoxChecked(node.ChildNodes);

}

}

else

{

if (node.ChildNodes.Count > 0)

{

this.GetCheckBoxChecked(node.ChildNodes);

}

}

}

}

#endregion

#region 通过部门ID得到所有的人员Id

/// <summary>

/// 通过部门ID得到所有的人员Id

/// </summary>

/// <param name="DeptId"></param>

/// <returns></returns>

protected int GetUserIdByDeptId(int DeptId)

{

string strSql = "select Dept from Accounts_UserDepartment where AutoID=" + DeptId;

string DeptName = OADBHelper.GetString(strSql); //得到部门名称

strSql = "select UserID from Accounts_Users where Dept='" + DeptName + "'";

int UserId = Convert.ToInt32(OADBHelper.GetString(strSql));

return UserId;

}

#endregion

#region 根据选中的节点设置相应的权限人到数据库

/// <summary>

/// 根据选中的节点设置相应的权限人

/// </summary>

/// <param name="classId"></param>

/// <param name="RoleId"></param>

protected void InertRoleMember(int FKId, int UserId,int DeptId)

{

string sql = @"insert into GM_Roles(FKId,UserId,DepId)values('" + FKId + "','" + UserId + "','" + DeptId + "')";

OADBHelper.GetInt(sql);

}

#endregion

#region 根据角色Id删除相应的权限

/// <summary>

/// 根据角色Id删除相应的权限

/// </summary>

/// <param name="RoleId"></param>

protected void DeleteRoles(int RoleId)

{

string sql = @"delete from GM_Roles where FKId=" + RoleId;

OADBHelper.GetInt(sql);

}

#endregion

#region C#复选框的操作

/// <summary>

/// 复选框改变时的操作

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

protected void tvUsers_TreeNodeCheckChanged(object sender, TreeNodeEventArgs e)

{

SetChildChecked(e.Node);

}

/// <summary>

/// 根据父节点情况来选择子节点

/// </summary>

/// <param name="parentNode"></param>

private void SetChildChecked(TreeNode parentNode)

{

foreach (TreeNode node in parentNode.ChildNodes)

{

node.Checked = parentNode.Checked;

if (node.ChildNodes.Count > 0)

{

SetChildChecked(node);

}

}

}

#endregion