Question

C#中的treeView控件使用问题.?

谁有treeView控件的源代码.!那最好不过了.最好给点注释.! 越详细越好.不然我看不懂.呵呵.谢谢大家了.!

Answer 1

这个是通过TREEVIEW绑定学校里面的年级班级列表
TreeNode
tnRoot
=
new
TreeNode("全校");//设置根节点
tnRoot.Selected
=
true;
this.tvNJBJ.Nodes.Add(tnRoot);//添加根节点
strSql
=
"SELECT
NJ_MC,NJ_ID
FROM
JW_NJ";
db.ExecuteQuery(strSql,
"JW_NJ",
out
dstInput_JWTYBH);
DataTable
dtNJ
=
dstInput_JWTYBH.Tables["JW_NJ"];//获取年级
for
(int
i
=
0;
i
<
dtNJ.Rows.Count;
i++)
{
TreeNode
tnNJ
=
new
TreeNode(dtNJ.Rows[i]["NJ_MC"].ToString(),
dtNJ.Rows[i]["NJ_ID"].ToString());
//讲年级节点添加到根节点
strSql
=
"SELECT
BJ_MC,BJ_ID
FROM
JW_BJXX
WHERE
NJ_ID='"
+
dtNJ.Rows[i]["NJ_ID"].ToString().Trim()
+
"'";
db.ExecuteQuery(strSql,
"JW_BJXX",
out
dstInput_JWTYBH);
for
(int
j
=
0;
j
<
dstInput_JWTYBH.Tables["JW_BJXX"].Rows.Count;
j++)
{
TreeNode
tnBJ
=
new
TreeNode(dstInput_JWTYBH.Tables["JW_BJXX"].Rows[j]["BJ_MC"].ToString(),dstInput_JWTYBH.Tables["JW_BJXX"].Rows[j]["BJ_ID"].ToString());//根据年级获取班级
tnNJ.ChildNodes.Add(tnBJ);//添加班级节点到年级节点
}
tnRoot.ChildNodes.Add(tnNJ);
}