我想给网站做一个配置工具,请问Winform如何读取Web。config中appSettings中的键值集合呢?

解决方案 »

  1.   

    ConfigurationSettings.AppSettings["serverIp"];
      

  2.   

    txdid = ConfigurationManager.AppSettings["TXDID"];//适用MVC//或者
    txdid=ConfigurationSettings.AppSettings["DataSJXHPath"]; //适用WINFORM
      

  3.   

    web
       WebConfigurationManager.AppSettings["key"];
    not web
       ConfigurationManager.AppSettings["key"];
      

  4.   

    就按一般的XML读写方式就可以了,可以用XmlDocument或者XDocument。
      

  5.   

     private void button1_Click(object sender, EventArgs e)
            {
                System.Xml.XmlDocument webconfig = new System.Xml.XmlDocument();          
              webconfig.Load(@"F:\CcharpExample\WebSite59\Web.config");//web.config的路径
                System.Xml.XmlNode node = webconfig.SelectSingleNode("/configuration/appSettings/add[@key='123']");//要找的节点            if (node == null)
                {
                    MessageBox.Show("没有找到符合要求的节点");
                }
                else
                {
                    MessageBox.Show(node.Attributes["value"].InnerText);//value的值
     
                }
               
            }在本地帮你测试一下,改一下路径,换一下key值
      

  6.   

    1.用普通的XML的方式去读取
    2.如果你是3.5以上也可以用XML.Linq去读取
      

  7.   


    不行的,我读的不是应用程序的配置文件,我上面说了,是网站的Web.config...
      

  8.   

    不行的,我读的不是应用程序的配置文件,我上面说了,是网站的Web.config...
      

  9.   

    不行的,我读的不是应用程序的配置文件,我上面说了,是网站的Web.config...
      

  10.   

    楼主代码来了,啊哈哈哈using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Text;
    using System.Windows.Forms;
    using Microsoft.Data.ConnectionUI;
    using System.Xml;
    namespace DSZQ
    {
        public partial class DataConn : Form
        {
            public DataConn()
            {
                InitializeComponent();
                //filepath = Environment.CurrentDirectory;
                filepath =Application.StartupPath;
                filepath += "//App.config";
            }
            string filepath;
            string connstr;
           /// <summary>
           /// 
           /// </summary>
           /// <param name="key"></param>
           /// <param name="strValue"></param>
            public void Modify(string key, string strValue)                                                                                         //两个参数:要修改的键值   和   要修改的新值;                               
            {
              string   flagstr = strValue;
                if (strValue == string.Empty)
                {
                    MessageBox.Show("连接串不能为空!");
                    return;
                }
                //string XPath = "/configuration/userInfo/add[@key='?']";
                try
                {
                    string XPath = "/configuration/appSettings/add[@key='?']";
                    XmlDocument domWebConfig = new XmlDocument();                //domWebConfig.Load((HttpContext.Current.Server.MapPath("web.config")));
                    domWebConfig.Load(filepath);
                    XmlNode addKey = domWebConfig.SelectSingleNode((XPath.Replace("?", key)));                if (addKey == null)
                    {
                        //Response.Write("<script>alert   (\"没有找到<add   key='" + key + "'   value=.../>的配置节\")</script>");
                        MessageBox.Show("没有找到<add   key='" + key + "'>的配置节");
                        return;
                    }
                    addKey.Attributes["value"].InnerText = strValue;
                    domWebConfig.Save(filepath);
                    MessageBox.Show("数据库连接配置成功","信息提示");
                    txtConnectionString.Text = connstr;
                    txtConnectionString.Enabled = false;
                }
                catch
                {
                   // MessageBox.Show("在"+Environment.CurrentDirectory + "目录下找不到web.config配置文件","信息提示");
                    txtConnectionString.Enabled = true;
                    txtConnectionString.Clear();
                    txtConnectionString.ForeColor = Color.Red;
                    txtConnectionString.Text ="在" + Application.StartupPath + "目录下找不到App.config配置文件";
                    return;
                }        }        private void buttonConn_Click(object sender, EventArgs e)
            {
                DataConnectionDialog dialog = new DataConnectionDialog();
                //添加数据源列表,可以向窗口中添加自己程序所需要的数据源类型
                dialog.DataSources.Add(DataSource.SqlDataSource);
                dialog.DataSources.Add(DataSource.OdbcDataSource);            dialog.SelectedDataSource = DataSource.SqlDataSource;
                dialog.SelectedDataProvider = DataProvider.SqlDataProvider;
                         //只能够通过DataConnectionDialog类的静态方法Show出对话框
                //不同使用dialog.Show()或dialog.ShowDialog()来呈现对话框
                if (DataConnectionDialog.Show(dialog, this) == DialogResult.OK)
                {
                    connstr = dialog.ConnectionString;
                    connstr = "Provider=SQLOLEDB.1;" + connstr;
                    Modify("ConnStr",connstr);
                              }
            }    
        }
    }