读写入xml [英] read write into xml

问题描述

DataSet dstest = new DataSet（）;

        DataTable dt11 = new DataTable（）;

        dt11.Columns.Add（" id"）;

        dt11.Columns.Add（" name"）;

        dt11.Rows.Add（" 1"，" ewrw"）;

        dt11.Rows.Add（"2"，"sfdsf"）;

        dstest.Tables.Add（dt11）;



        StreamWriter xmlDoc = new StreamWriter（@"C：\ nn \ SrsdXml.xml"，false）;

        //应用WriteXml方法编写XML文档

        dstest.WriteXml（xmlDoc）;

        xmlDoc.Close（）;

    //读取数据集

            TextReader reader1 = new StreamReader（@"C：\ nn\SrXml.xml"）;

        DataSet dataSet = new DataSet（）;

        dataSet.ReadXml（reader1，XmlReadMode.InferSchema）;

为什么不工作请帮助

解决方案

Hi Mohtjwari，

感谢您在此发帖。

对于您的问题，我测试您的代码。您使用错误的文件名xml。如果你想输出一些东西，你可以参考下面的代码。

 DataSet dstest = new DataSet（）; 
 DataTable dt11 = new DataTable（）; 
 dt11.Columns.Add（" id"）; 
 dt11.Columns.Add（" name"）; 
 dt11.Rows.Add（" 1"，" ewrw"）; 
 dt11.Rows.Add（" 2"，" sfdsf"）; 
 dstest.Tables.Add（dt11）; 
 
 StreamWriter xmlDoc = new StreamWriter（@"   C：\ nn \    SrsdXml.xml "，false）; 
 //应用WriteXml方法编写XML文档
 dstest.WriteXml（xmlDoc）; 
 xmlDoc.Close（）; 
 
 //读取数据集
 TextReader reader1 = new StreamReader（@"   C：\ nn \    SrsdXml.xml "）; 
 DataSet dataSet = new DataSet（）; 
 dataSet.ReadXml（reader1，XmlReadMode.InferSchema）; 
  Console.WriteLine（dataSet.Tables [0]）;  
 

这是您代码中的xml文件。

< NewDataSet> 
< Table1> 
< id> 1< / id> 
< name> ewrw< / name> 
< / Table1> 
< Table1> 
< id> 2< / id> 
< name> sfdsf< / name> 
< / Table1> 
< / NewDataSet> 

这是输出。

最好的问候，

Wendy

DataSet dstest = new DataSet();
        DataTable dt11 = new DataTable();
        dt11.Columns.Add("id");
        dt11.Columns.Add("name");
        dt11.Rows.Add("1", "ewrw");
        dt11.Rows.Add("2", "sfdsf");
        dstest.Tables.Add(dt11);

        StreamWriter xmlDoc = new StreamWriter(@"C:\nn\SrsdXml.xml", false);
        // Apply the WriteXml method to write an XML document
        dstest.WriteXml(xmlDoc);
        xmlDoc.Close();

   // read data set
            TextReader reader1 = new StreamReader(@"C:\nn\SrXml.xml");
        DataSet dataSet = new DataSet();
        dataSet.ReadXml(reader1, XmlReadMode.InferSchema);

it why not working pls help

解决方案

Hi Mohtjwari,

Thank you for posting here.

For your question, I test your code. You use the wrong file name of xml. And if you want to output something, you could refer to the following code.

    DataSet dstest = new DataSet();
            DataTable dt11 = new DataTable();
            dt11.Columns.Add("id");
            dt11.Columns.Add("name");
            dt11.Rows.Add("1", "ewrw");
            dt11.Rows.Add("2", "sfdsf");
            dstest.Tables.Add(dt11);

            StreamWriter xmlDoc = new StreamWriter(@"C:\nn\SrsdXml.xml", false);
            // Apply the WriteXml method to write an XML document
            dstest.WriteXml(xmlDoc);
            xmlDoc.Close();

            // read data set
            TextReader reader1 = new StreamReader(@"C:\nn\SrsdXml.xml");
            DataSet dataSet = new DataSet();
            dataSet.ReadXml(reader1, XmlReadMode.InferSchema);
            Console.WriteLine(dataSet.Tables[0]);

This the xml file from your code.

<NewDataSet>
  <Table1>
    <id>1</id>
    <name>ewrw</name>
  </Table1>
  <Table1>
    <id>2</id>
    <name>sfdsf</name>
  </Table1>
</NewDataSet>

And this is the output.

Best Regards,

Wendy

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