xml节点选择问题

Question

XML源文件如下：<?xml version="1.0"?>
<GridPosition >
  <Form FormName="frmProduct">
    <Grid GridName="gridView1">
      <Field FieldName="fieldName1">
        <Width>20</Width>
        <ItemIndex>0</ItemIndex>
      </Field>
      <Field FieldName="fieldName2">
        <Width>20</Width>
        <ItemIndex>1</ItemIndex>
      </Field>
      <Field FieldName="fieldName3">
        <Width>20</Width>
        <ItemIndex>2</ItemIndex>
      </Field>      
    </Grid>
  </Form>
  <Form FormName="frmBom">
    <Grid GridName="gridView1">
      <Field FieldName="fieldName1">
        <Width>20</Width>
        <ItemIndex>0</ItemIndex>
      </Field>
      <Field FieldName="fieldName2">   如何选择此节点?
        <Width>20</Width>
        <ItemIndex>1</ItemIndex>
      </Field>
      <Field FieldName="fieldName3">
        <Width>20</Width>
        <ItemIndex>2</ItemIndex>
      </Field>      
    </Grid>
  </Form>
</GridPosition>
请问如何选择到FormName="frmBom",GridName="gridView1",FieldName="fieldName2"的节点?

Answer 1

  XmlDocument doc = new XmlDocument();
            doc.Load(@"D:\Project\C#Test\WindowsApplication1\WindowsApplication2\XMLFile3.xml");            XmlNode node = doc.SelectSingleNode("/GridPosition/Form[@FormName='frmBom']/Grid[@GridName='gridView1']/Field[@FieldName='fieldName2']");

Answer 2

Up 读取xml文件为一递归

Answer 3

如何把FormName="frmBom",GridName="gridView1",FieldName="fieldName3"节点插入到对应位置呢?