C#中treeview绑定xml

<?xml version="1.0" encoding="UTF-8" ?>
- <root StatusCode="Success" selgroup="1">
- <grouplevel1>
<g00>1</g00>
<g01>2</g01>
<g02>3</g02>
<g03>DS100测试</g03>
<g04>DS100-1</g04>
<g05>DS100-2</g05>
<g06>DS100-3</g06>
<g07>DS100-4</g07>
</grouplevel1>
- <grouplevel2>
<g0000>11</g0000>
<g0001>12</g0001>
<g0002>13</g0002>
</grouplevel2>
- <grouplevel3>
<g000100>111</g000100>
<g000101>112</g000101>
<g000102>113</g000102>
<g000103>114</g000103>
<g000104>115</g000104>
</grouplevel3>
</root>

变成

-1
-11
-111
-112
-113
-114
-115
-12
-2
-3

DataTable dt = new DataTable();
dt.ReadXml(你XML文件路径);
this.TreeView1.DataSource = dt;
this.TreeView1.DataBind();