我正在尝试将数据表中的数据导出到xml文件中。我有这个部分工作,但当一个记录没有任何数据或空白时,它仍然将它写入xml文件与XML:空间保留。
我想忽略这些列,如果它们中没有任何数据,则不要将它们放在xml文件中
它现在正在生成的xml文件的示例
如果客户街道3和4节点中没有任何值,我希望不打印它们。
这是我的代码
using System.IO;
using System.Linq;
using System.Text;
using System.Data;
using System.Xml.Linq;
using System;
using System.Collections.Generic;
using PdfSharp.Pdf.IO;
using PdfSharp.Pdf;
using PdfSharp.Drawing;
using System.Xml;
namespace InvoicePrintProgram
{
class XMLGenerator
{
//Defining method that generates XMl Files
public void Start(String XmlFilepath, string XMlFileName, DataTable DT, int PageCountOut, int SequenceCountOut, int[] PrefIndex/*, int[] SequenceIndex, IEnumerable<String> chunk, int IndexCount out int IndexCountOut*/)
{
// Creates Xml file from datatable using the wrtieXml method
FileStream streamWrite = new FileStream(XmlFilepath, System.IO.FileMode.Create);
System.Xml.XmlWriterSettings settings = new System.Xml.XmlWriterSettings();
settings.Indent = true;
//settings.Encoding = System.Text.Encoding.GetEncoding("ISO-8859-1")
settings.Encoding = System.Text.Encoding.UTF8;
settings.CloseOutput = true;
settings.CheckCharacters = true;
settings.NewLineChars = "\r\n";
DT.WriteXml(streamWrite, XmlWriteMode.IgnoreSchema);
答案 0 :(得分:0)
您可以从该DataTable创建一个Object列表,并使用以下内容:
List<string> xml_string = new List<string>();
xml_string.Add("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>");
xml_string.Add("anything you need as header");
foreach(string current_string in your_object_of_DataTable)
{
if(current_string!=null || current_string.Trim()!="")
{
xml_string.Add("<Your Tag>"+current_string+"</Your Tag>");
}
}
try
{
using (System.IO.StreamWriter file = new System.IO.StreamWriter(@"D:\xml_file_name.xml"))
{
foreach (string line in xml_string)
{
file.WriteLine(line);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
finally
{
MessageBox.Show("File exported.");
}