XML填充数据表

Question

我正在根据给定的xml文件创建DataTable。我看过其他资源和类似问题，但仍然停留在同一地方。我想根据我的xml输入文件填充一个表，以便它看起来像这样：

我已经正确插入了DataColumns并没有插入。的行数基于row_no的数量尝试从bomrow中的元素中添加值时出现问题。我不确定如何填充这些行，或者我只得到一列在列部分或行部分中分隔。到目前为止，这是我的代码：

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Xml;
using System.Xml.Linq;
class Program
{
    static IEnumerable<XElement> headerLabels(string xmlFile)
    {
        using (XmlReader reader = XmlReader.Create(xmlFile))
        {
            reader.MoveToContent();

            while (!reader.EOF)
            {
                if (reader.NodeType == XmlNodeType.Element && reader.Name == "bomcol")
                {
                    XElement el = XElement.ReadFrom(reader) as XElement;
                    if (el != null)
                        yield return el;
                }
                else
                    reader.Read();
            }
        }
    }
    static IEnumerable<XElement> rowValues(string xmlFile)
    {
        using (XmlReader reader = XmlReader.Create(xmlFile))
        {
            reader.MoveToContent();

            while (!reader.EOF)
            {
                if (reader.NodeType == XmlNodeType.Element && reader.Name == "bomcell")
                {
                    XElement el = XElement.ReadFrom(reader) as XElement;
                    if (el != null)
                        yield return el;
                }
                else
                    reader.Read();
            }
        }
    }
    static IEnumerable<XElement> rowNums(string xmlFile)
    {
        using (XmlReader reader = XmlReader.Create(xmlFile))
        {
            reader.MoveToContent();

            while (!reader.EOF)
            {
                if (reader.NodeType == XmlNodeType.Element && reader.Name == "bomrow")
                {
                    XElement el = XElement.ReadFrom(reader) as XElement;
                    if (el != null)
                        yield return el;
                }
                else
                    reader.Read();
            }
        }
    }    
    static void Main(string[] args)
    {
        DataTable dt = new DataTable();
        string xmlFile = @"new.xml";

        for (int i = 0; i <= 4; i++) 
        {
            IEnumerable<String> colHeaders =
              from el in headerLabels(xmlFile)
              where (int)el.Attribute("col_no") == i
              select (String)el.Attribute("name");

            foreach (String header in colHeaders)
            {
                dt.Columns.Add(header).ToString();
            }
        }


        Console.WriteLine("Rows: " + dt.Rows.Count);
        Console.WriteLine("Cols: " + dt.Columns.Count);
        DataColumnCollection cols = dt.Columns;
        foreach (DataColumn col in cols)
        {
            Console.Write(col.ColumnName + "\t");
        }
        Console.WriteLine();
        IEnumerable<String> rows =
              from el in rowNums(xmlFile)
              where (int)el.Attribute("row_no") >= 0
              select (String)el.Attribute("row_no");
        foreach (String row_n in rows)
        {
            DataRow rws = dt.Rows.Add(); //.Add(DATA Values)
        }
        List<string> rowVals = new List<string>();
        foreach (DataRow dtRow in dt.Rows)
        {

        }
        Console.WriteLine("Rows: " + dt.Rows.Count);
        Console.WriteLine("Cols: " + dt.Columns.Count);
        Console.WriteLine();
        Console.ReadLine();

    }
}

这是我正在使用的示例xml：

<xml>
    <transactions>
        <transaction>
            <bom>
            <bomheader>
                <bomcol alignment="center" col_no="0" name="ITEM NO."/>
                <bomcol alignment="center" col_no="1" name="ITEMCODE"/>
                <bomcol alignment="center" col_no="2" name="PARTNUMBER"/>
                <bomcol alignment="center" col_no="3" name="DESCRIPTION"/>
                <bomcol alignment="center" col_no="4" name=" QTY."/>
            </bomheader>
                <bomrow document_id="32" path="\PARTS" row_no="0">
                    <bomcell col_no="0" value="1"/>
                    <bomcell col_no="1" value="201"/>
                    <bomcell col_no="2" value="75"/>
                    <bomcell col_no="3" value="MEMBER"/>
                    <bomcell col_no="4" value="2"/>
                </bomrow>
                <bomrow document_id="35" path="\PARTS" row_no="1">
                    <bomcell col_no="0" value="2"/>
                    <bomcell col_no="1" value="205"/>
                    <bomcell col_no="2" value="75-LH"/>
                    <bomcell col_no="3" value="MEMBER LEFT HAND"/>
                    <bomcell col_no="4" value="1"/>
                </bomrow>
                <bomrow document_id="30" path="\PARTS" row_no="2">
                    <bomcell col_no="0" value="3"/>
                    <bomcell col_no="1" value="200"/>
                    <bomcell col_no="2" value="01AB"/>
                    <bomcell col_no="3" value="FRAME"/>
                    <bomcell col_no="4" value="1"/>
                </bomrow>
            </bom>
        </transaction>
    </transactions>
</xml>

感谢所有帮助（或资源）！

Answer 1

您可以像这样用DataSet解决您的问题（这不是一个很好的解决方案，但是可以工作；）：

 static void Main(string[] args)
    {
        DataTable dt = new DataTable("Items");
        string xmlFile = @"new.xml";

        DataSet ds = new DataSet();
        ds.ReadXml(xmlFile);

        foreach (DataRow rowCol in ds.Tables["bomcol"].Rows)
        {
            dt.Columns.Add(rowCol.ItemArray[2].ToString());
        }

        DataRow dr = dt.Rows.Add();
        for (int j = 0; j < ds.Tables["bomcell"].Rows.Count; j++)
        {

            var i = j % 5;
            if (i == 0 && j != 0)
            {
                dr = dt.Rows.Add();
            }

            dr[dt.Columns[i]] = ds.Tables["bomcell"].Rows[j].ItemArray[1];
        }

        Console.WriteLine("Rows: " + dt.Rows.Count);
        Console.WriteLine("Cols: " + dt.Columns.Count);
        DataColumnCollection cols = dt.Columns;
        foreach (DataColumn col in cols)
        {
            Console.Write(cols[0] + "\t");
        }

        foreach (DataRow row in dt.Rows)
        {
            Console.WriteLine();
            Console.Write(row.ItemArray[0] + "\t\t" + row.ItemArray[1] + "\t\t" + row.ItemArray[2] + "\t\t" + row.ItemArray[3] + "\t\t" + row.ItemArray[4] + "\t");
        }

        Console.ReadLine();
    }