用xml数据实现comboBox级联的方法

最新推荐文章于 2021-05-27 07:58:28 发布

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本文介绍了一个用于从XML配置文件中读取国家、省份和城市信息的方法。通过使用C#编程语言，该方法能够动态填充ComboBox控件，实现地区信息的选择功能。

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#region 字段定义

private string _ConfigPath = string.Empty;

#endregion

#region 属性定义

/// <summary> /// 配置文件路径 /// </summary> public string ConfigPath { get { return this._ConfigPath; } set { this._ConfigPath = value; } }

#endregion

#region 构造函数

public AreaConfig() {

}

public AreaConfig(string pConfigPath) { this._ConfigPath = pConfigPath; }

#endregion

#region 方法

public void GetCountry(ComboBox pcobCountry) { XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Load(this._ConfigPath); XmlNodeList elemList = xmlDoc.SelectSingleNode("AreaInfo").ChildNodes; for (int i = 0; i < elemList.Count; i++) { ComboBoxItem cobItem = new ComboBoxItem(); cobItem.Content = elemList[i].Attributes["name"].Value.ToString(); cobItem.Tag = elemList[i].Attributes["areacode"].Value.ToString(); pcobCountry.Items.Add(cobItem); } }

public void GetProvince(ComboBox pcobCountry, ComboBox pcobProvince) { ComboBoxItem cobItem = (ComboBoxItem)pcobCountry.SelectedItem; string selectCountry = cobItem.Content.ToString(); XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Load(this._ConfigPath); XmlNodeList elemList = xmlDoc.SelectSingleNode("AreaInfo").ChildNodes; foreach (XmlNode node in elemList) { string nodeValue = node.Attributes["name"].Value; if (nodeValue == selectCountry) { pcobProvince.Items.Clear(); foreach (XmlNode node1 in node.SelectNodes("province")) { ComboBoxItem cobi = new ComboBoxItem(); cobi.Content = node1.Attributes["name"].Value.ToString(); cobi.Tag = node1.Attributes["provincecode"].Value.ToString(); pcobProvince.Items.Add(cobi); } break; } } }

public void GetCity(ComboBox pcobPronvice, ComboBox pcobCity) { if (pcobPronvice.SelectedItem!= null) { ComboBoxItem cobItem = (ComboBoxItem)pcobPronvice.SelectedItem; string selectProvince = cobItem.Content.ToString(); XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Load(this._ConfigPath); XmlNodeList elemlist = xmlDoc.SelectSingleNode("AreaInfo").ChildNodes; foreach (XmlNode node in elemlist) { foreach (XmlNode node1 in node.SelectNodes("province")) { string nodeValue = node1.Attributes["name"].Value.ToString();

if (nodeValue == selectProvince) { pcobCity.Items.Clear(); foreach (XmlNode node2 in node1.SelectNodes("city")) { ComboBoxItem cobi = new ComboBoxItem(); cobi.Content = node2.Attributes["name"].Value.ToString(); pcobCity.Items.Add(cobi); } break; } } } } }