private void UpdateFieldNodeByForm(ref XmlNode fieldNode)
{
UpdateFieldNodeProperty(ref fieldNode, "FieldText", tbText.Text, () => true);
UpdateFieldNodeProperty(ref fieldNode, "FieldType", cbType.SelectedItem as string, () => !PFDataHelper.StringIsNullOrWhiteSpace(cbType.SelectedItem as string));
UpdateFieldNodeProperty(ref fieldNode, "FieldSqlLength", nudSqlLength.Value.ToString(), () => cbHaveSqlLength.Checked);
UpdateFieldNodeProperty(ref fieldNode, "FieldWidth", nudWidth.Value.ToString(), () => cbHaveWidth.Checked);
UpdateFieldNodeProperty(ref fieldNode, "Visible", cbVisible.Checked?"true": "false", () => !cbVisible.Checked);//其实,true时没有保存节点
#region old
//var n = fieldNode.SelectSingleNode("FieldText");
//if (n != null) { n.InnerText = tbText.Text; }
//var t = fieldNode.SelectSingleNode("FieldType");
//if (t != null) { t.InnerText = cbType.SelectedItem.ToString(); }
//var l = fieldNode.SelectSingleNode("FieldSqlLength");
//if (l != null)
//{
// if (cbHaveSqlLength.Checked) { l.InnerText = nudSqlLength.Value.ToString(); } else { fieldNode.RemoveChild(l); }
//}
//else
//{
// if (cbHaveSqlLength.Checked)
// {
// XmlNode sqlLengthNode = _fieldSetsXml.CreateNode("element", "FieldSqlLength", "");
// sqlLengthNode.InnerText = nudSqlLength.Value.ToString();
// fieldNode.AppendChild(sqlLengthNode);
// }
//}
//var w = fieldNode.SelectSingleNode("FieldWidth");
//if (w != null)
//{
// if (cbHaveWidth.Checked) { w.InnerText = nudWidth.Value.ToString(); } else { fieldNode.RemoveChild(w); }
//}
//else
//{
// if (cbHaveWidth.Checked)
// {
// XmlNode widthNode = _fieldSetsXml.CreateNode("element", "FieldWidth", "");
// widthNode.InnerText = nudWidth.Value.ToString();
// fieldNode.AppendChild(widthNode);
// }
//}
//var v = fieldNode.SelectSingleNode("Visible");
//if (v != null)
//{
// if (cbVisible.Checked) { fieldNode.RemoveChild(v); }
//}
//else
//{
// if (!cbVisible.Checked)
// {
// XmlNode visibleNode = _fieldSetsXml.CreateNode("element", "Visible", "");
// visibleNode.InnerText = "false";
// fieldNode.AppendChild(visibleNode);
// }
//}
#endregion
}