第三方控件DevExpress的TreeList绑定XML文件

研究了两天，网上也看了不少资料，但都是静态绑定到TreeList，就是在已知道表的情况下进行绑定，表中已经把KeyFieldName和ParentFieldName的关系确定好了，比较死板。我需要的功能是自动根据XML进行确定KeyFieldName和ParentFieldName关系。所以确定二者关系就比较麻烦，我现在只能实现对三层的XML文件进行显示，四层的还会出错，正在进一步改进，记录如下：（草稿形式，不很规范，谅解）

private void btnOpenFile_Click(object sender, EventArgs e)

{

OpenFileDialog openFile = new OpenFileDialog();

openFile.Title = "打开XML文件";

openFile.Filter = "XML文件(*.xml)|*.xml";

openFile.InitialDirectory = "C:\\";

openFile.ShowDialog();

string filepath = openFile.FileName;

this.treeList1.DataSource = SelectXml(filepath);

}

public static int parentId;

public static int Id;

private DataTable SelectXml(string xmlPath)

{

DataTable dt = new DataTable();

DataColumn did = new DataColumn("ID", Type.GetType("System.Int32"));

DataColumn dParentID = new DataColumn("ParentID", Type.GetType("System.Int32"));

DataColumn dNodeName = new DataColumn("节点名称", Type.GetType("System.String"));

dt.Columns.Add(did);

dt.Columns.Add(dParentID);

dt.Columns.Add(dNodeName);

XmlDocument xmlDoc = new XmlDocument();

xmlDoc.Load(xmlPath);

//初始ID,ParentID

Id = 1;

parentId = 1;

//获取根节点

XmlElement xmlRootElement = xmlDoc.DocumentElement;

DataRow dr = dt.NewRow();

dr["ID"] = Id;

dr["ParentID"] = 0;

dr["节点名称"] = xmlRootElement.Name.ToString();

dt.Rows.Add(dr);

Id++;

int Id1 = Id,pId;

int b = parentId, d = Id; //记录递归后的ID，ParentId变化

XmlNodeList xmlNodeList = xmlRootElement.ChildNodes;

foreach (XmlElement xmlElement in xmlNodeList)

{

XmlNode xmlnode = (XmlNode)xmlElement;

dr = dt.NewRow();

dr["ID"] =d;

dr["ParentID"] = parentId;

dr["节点名称"] = xmlnode.Name.ToString();

dt.Rows.Add(dr);

Id1 = d;

pId = b+1;

sort(xmlnode, Id1,pId,dt,ref d,ref b); //利用ref记录随时变化

}

return dt;

}

private void sort(XmlNode xmlnode, int ID,int parentId,DataTable dt,ref int d,ref int b)

{

if (xmlnode.HasChildNodes)

{

XmlNodeList ChildNodeList = xmlnode.ChildNodes;

foreach (XmlNode xmlNode in ChildNodeList)

{

if (xmlNode.NodeType == XmlNodeType.Text)

{

Id = Id - 1;

ID = ID + 1;

continue;

}

else

{

ID = ID + 1;

DataRow dr = dt.NewRow();

dr["ID"] = ID;

dr["ParentID"] = parentId;

dr["节点名称"] = xmlNode.Name.ToString();

Id = Id + 1;

dt.Rows.Add(dr);

sort(xmlNode,ID, Id - 1, dt,ref d,ref b);

}

}

}

d=ID+1;

b = ID;

}