怎样使用外部存储手段如使用配置文件等保存易变量，然后由程序读出。我想在客户处没有有编译环境的时候修改连接字符串？

Question

常用得办法，就是读写INI文件，可以专门写这个读写得类

Answer 1

可以试试XML，在System.Xml命名空间里也可以试试.Net中的资源文件，在System.Resources 命名空间里这两个MSDN里都有比较详细的教程，可以参考

Answer 2

<?xml version="1.0" encoding="gb2312" ?> 
- <Config>
  <DBString>Provider=msdaora.1;User ID=dloco;Password=dloco;data source=dljc</DBString> 
  <BuilderPath>\EntityData\</BuilderPath> 
  <EntityPath>\EntityData\</EntityPath> 
  </Config>

Answer 3

so easy.use xml.
以下是我的某个XML配置程序的代码段,你看了就知道如何做了.
public void Save_ConfigXmlFile(string FileName)
{
XmlTextWriter myXmlTextWriter = new XmlTextWriter (FileName, null);
myXmlTextWriter.Formatting = Formatting.Indented;
myXmlTextWriter.WriteStartDocument(true);
myXmlTextWriter.Indentation=4;
myXmlTextWriter.WriteStartElement("Config",null);
myXmlTextWriter.WriteStartElement("LocalSourceXmlFilePath",null);
myXmlTextWriter.WriteRaw(this.LocalSourceXmlFilePath);
myXmlTextWriter.WriteEndElement();
myXmlTextWriter.WriteStartElement("LocalSourcePath",null);
myXmlTextWriter.WriteRaw(this.localSourcePath);
myXmlTextWriter.WriteEndElement();
myXmlTextWriter.WriteStartElement("NetWorkSourceXmlFilePath",null);
            myXmlTextWriter.WriteRaw(this.netWorkSourceXmlFilePath);
myXmlTextWriter.WriteEndElement();
myXmlTextWriter.WriteStartElement("Target_UpLoadFilePath",null);
myXmlTextWriter.WriteRaw(this.target_UpLoadFilePath);
myXmlTextWriter.WriteEndElement();
myXmlTextWriter.WriteStartElement("AutoRun",null);
myXmlTextWriter.WriteRaw(this.autoRun);
myXmlTextWriter.WriteEndElement();
myXmlTextWriter.WriteEndElement();
/********************************************************************************/
myXmlTextWriter.Flush();
myXmlTextWriter.Close();

}
public void Load_ConfigXmlFile(string XmlFileName)
{

XmlDocument XDoc = new XmlDocument();
XDoc.Load(XmlFileName);
XmlNode XNod = XDoc.DocumentElement.SelectSingleNode("//LocalSourceXmlFilePath");
this.localSourceXmlFilePath=XNod.InnerText;
XNod=XDoc.DocumentElement.SelectSingleNode("//LocalSourcePath");
this.localSourcePath=XNod.InnerText;
XNod=XDoc.DocumentElement.SelectSingleNode("//NetWorkSourceXmlFilePath");
this.netWorkSourceXmlFilePath=XNod.InnerText;
    XNod=XDoc.DocumentElement.SelectSingleNode("//Target_UpLoadFilePath");
    this.target_UpLoadFilePath=XNod.InnerText;
XNod=XDoc.DocumentElement.SelectSingleNode("//AutoRun");
this.autoRun=XNod.InnerText;
    

}