将datagridview数据保存到xml
Posted
技术标签:
【中文标题】将datagridview数据保存到xml【英文标题】：Save datagridview data to xml 【发布时间】：2017-10-30 09:14:10 【问题描述】：我已将 xml 文件加载到 datagridview。在用户完成更改后，我必须将其保存在与加载文件完全相同的结构中。
每个文件可以包含多个 TimeSlots
<?xml version="1.0" encoding="iso-8859-1"?>
<ELO2BDE>
<TimeSlots>
<TimeSlot>
<StartTime xmlns="TEST:TEST">2017-10-10T00:00:00</StartTime>
<EndTime xmlns="TEST:TEST">2017-10-10T03:00:00</EndTime>
<WorkShift xmlns="TEST:TEST">Night Shift</WorkShift>
<WorkShiftModel xmlns="TEST:TEST">Default</WorkShiftModel>
<UtilizationCategory xmlns="TEST:TEST">Corrective Work</UtilizationCategory>
<UtilizationCategoryDetail xmlns="TEST:TEST" />
<Remarks xmlns="TEST:TEST" />
<OperatorPerson xmlns="TEST:TEST">PERSON</OperatorPerson>
<IsAutoGenerated xmlns="TEST:TEST">false</IsAutoGenerated>
<UsedEquipmentTypes xmlns="TEST:TEST" />
<NameValuePairs xmlns="TEST:TEST">
<NameValuePair>
<Name>Project Number</Name>
<Value>qwer</Value>
</NameValuePair>
<NameValuePair>
<Name>Project Sub Number</Name>
<Value>456</Value>
</NameValuePair>
<NameValuePair>
<Name>Project Fuel Sub Number</Name>
<Value>456</Value>
</NameValuePair>
<NameValuePair>
<Name>Result Series</Name>
<Value>test</Value>
</NameValuePair>
<NameValuePair>
<Name>Result</Name>
<Value>435-dfg-345</Value>
</NameValuePair>
<NameValuePair>
<Name>Version</Name>
<Value>1</Value>
</NameValuePair>
<NameValuePair>
<Name>Engine Running Time</Name>
<Value>390.4911</Value>
</NameValuePair>
<NameValuePair>
<Name>Cum Fuel Consumption</Name>
<Value>0</Value>
</NameValuePair>
<NameValuePair>
<Name>P Comment</Name>
<Value />
</NameValuePair>
<NameValuePair>
<Name>Type of Test</Name>
<Value>0</Value>
</NameValuePair>
<NameValuePair>
<Name>Test Sequence Number</Name>
<Value />
</NameValuePair>
<NameValuePair>
<Name>P Operating Mode</Name>
<Value>290</Value>
</NameValuePair>
<NameValuePair>
<Name>P_VER</Name>
<Value>15</Value>
</NameValuePair>
<NameValuePair>
<Name>Testrun ID</Name>
<Value>436456745</Value>
</NameValuePair>
<NameValuePair>
<Name>Fuel Type ID</Name>
<Value>11</Value>
</NameValuePair>
<NameValuePair>
<Name>Dyno Power</Name>
<Value>687</Value>
</NameValuePair>
<NameValuePair>
<Name>Indi Channels</Name>
<Value>0</Value>
</NameValuePair>
<NameValuePair>
<Name>Testbed Type</Name>
<Value>1E+10</Value>
</NameValuePair>
<NameValuePair>
<Name>S_LOGTIM</Name>
<Value>20171010124918</Value>
</NameValuePair>
<NameValuePair>
<Name>Project TFMS</Name>
<Value/>
</NameValuePair>
</NameValuePairs>
<DataList xmlns="TEST:TEST">
<Value>UUT</Value>
<Value>Entire</Value>
<Value>0115138</Value>
</DataList>
</TimeSlot>
</TimeSlots>
<LogbookName>NAS Logbook</LogbookName>
这就是我将文件保存到 xDocument 列表中的方式：（我的问题的解决方案）
DataTable dt = new DataTable();
if (FileDataset.Count > 0)
FileDataset.Clear();
dt = (DataTable)dgvData.DataSource;
var filegroup = dt.AsEnumerable().GroupBy(x => x.Field<string>("Filename")).ToList();
if (filegroup.Count > 0)
foreach (var file in filegroup)
string root = "ELO2BDE";
string xmlIdentification = string.Format("<?xml version=\"1.0\" encoding=\"iso-8859-1\"?><0><TimeSlots></TimeSlots><LogbookName></LogbookName></0>", root);
string ElementLogbookName = string.Empty;
string FileName = string.Empty;
XDocument outputDoc = XDocument.Parse(xmlIdentification);
XElement timeSlots = outputDoc.Descendants("TimeSlots").FirstOrDefault();
XElement LogbookNameRoot = outputDoc.Descendants("LogbookName").FirstOrDefault();
XNamespace nsattr = "urn:TEST:TEST:TEST:Public";
var groups = file.AsEnumerable().GroupBy(x => new
Filename = x.Field<string>("FileName"),
starttime = x.Field<DateTime>("StartTime"),
endtime = x.Field<DateTime>("EndTime"),
workShift = x.Field<string>("WorkShift"),
workShiftModel = x.Field<string>("WorkShiftModel"),
utilizationCategory = x.Field<string>("UtilizationCategory"),
utilizationCategoryDetail = x.Field<string>("UtilizationCategoryDetail"),
remarks = x.Field<string>("Remarks"),
operationPerson = x.Field<string>("OperatorPerson"),
isAutoGenerated = x.Field<Boolean>("IsAutoGenerated"),
userEquipmentTypes = x.Field<string>("UsedEquipmentTypes"),
logbookName = x.Field<string>("LogbookName")
).ToList();
foreach (var group in groups)
XElement timeSlot = new XElement("TimeSlot");
timeSlots.Add(timeSlot);
timeSlot.Add(new XElement(nsattr + "StartTime", group.Key.starttime));
timeSlot.Add(new XElement(nsattr + "EndTime", group.Key.endtime));
timeSlot.Add(new XElement(nsattr + "WorkShift", group.Key.workShift));
timeSlot.Add(new XElement(nsattr + "WorkShiftModel", group.Key.workShiftModel));
timeSlot.Add(new XElement(nsattr + "UtilizationCategory", group.Key.utilizationCategory));
timeSlot.Add(new XElement(nsattr + "UtilizationCategoryDetail", group.Key.utilizationCategoryDetail));
timeSlot.Add(new XElement(nsattr + "Remarks", group.Key.remarks));
timeSlot.Add(new XElement(nsattr + "OperatorPerson", group.Key.operationPerson));
timeSlot.Add(new XElement(nsattr + "IsAutoGenerated", group.Key.isAutoGenerated));
timeSlot.Add(new XElement(nsattr + "UsedEquipmentTypes", group.Key.userEquipmentTypes));
timeSlot.Add(new XElement(nsattr + "NameValuePairs"));
XElement nameValuePairs = timeSlot.Element(nsattr + "NameValuePairs");
List<DataRow> NameValuePairs = group.ToList();
for (int i = 13; i < NameValuePairs[0].Table.Columns.Count - 3; i++)
var value = NameValuePairs[0].ItemArray.GetValue(i);
if (!String.IsNullOrEmpty(value.ToString()))
nameValuePairs.Add(new XElement(nsattr + "NameValuePair", new object[]
new XElement(nsattr + "Name" , NameValuePairs[0].Table.Columns[i].ColumnName),
//new XElement(nsattr + "Value", NameValuePairs[0].Table.Rows[0][i].ToString()),
new XElement(nsattr + "Value", value),
));
timeSlot.Add(new XElement(nsattr + "DataList"));
XElement DataList = timeSlot.Element(nsattr + "DataList");
for (int i = NameValuePairs[0].Table.Columns.Count - 3; i < NameValuePairs[0].Table.Columns.Count; i++)
var value = NameValuePairs[0].ItemArray.GetValue(i);
DataList.Add(new XElement(nsattr + "Value", value));
//DataList.Add(new XElement(nsattr + "Value", NameValuePairs[0].Table.Rows[0][i].ToString()));
ElementLogbookName = group.Key.logbookName;
FileName = group.Key.Filename;
LogbookNameRoot.Add(ElementLogbookName);
outputDoc.Add(new XComment("Editied file at: " + DateTime.Now + " from PC: " + System.Environment.MachineName + " and User: " + System.Environment.UserName + " "));
FileDataset.Add(FileName, outputDoc);
我该怎么做？
“NameValuePair”中的名称目前是我的列名，但当用户保存文件时，它们必须是“名称”。）
如何保存带有元素属性的 XML？
【问题讨论】：
如果您的问题中的 XML 不是全部在一行中，那么提供帮助会容易得多。 我编辑了xml文件。 c# Save DataGridView to Xml file的可能重复 【参考方案1】：试试下面的代码。我必须添加一个命名空间来解析 xml 并添加一个唯一的行，因此每个 NameValuePair 都在表的一行中
using System;
using System.Collections.Generic;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.Xml.Linq;
namespace WindowsFormsApplication4
public partial class Form1 : Form
const string INPUT_FILENAME = @"c:\temp\test.xml";
const string OUTPUT_FILENAME = @"c:\temp\test1.xml";
public Form1()
InitializeComponent();
DataTable dt = new DataTable();
dt.Columns.Add("StartTime", typeof(DateTime));
dt.Columns.Add("EndTime", typeof(DateTime));
dt.Columns.Add("WorkShift", typeof(string));
dt.Columns.Add("WorkShiftModel", typeof(string));
dt.Columns.Add("UtilizationCategory", typeof(string));
dt.Columns.Add("UtilizationCategoryDetail", typeof(string));
dt.Columns.Add("Remarks", typeof(string));
dt.Columns.Add("OperatorPerson", typeof(string));
dt.Columns.Add("IsAutogenerated", typeof(Boolean));
dt.Columns.Add("UsedEquipmentTypes", typeof(string));
dt.Columns.Add("Name", typeof(string));
dt.Columns.Add("Value", typeof(string));
XDocument doc = XDocument.Load(INPUT_FILENAME);
XNamespace ns = null;
foreach (XElement timeSlot in doc.Descendants("TimeSlot"))
foreach (XElement nameValuePair in timeSlot.Descendants().Where(x => x.Name.LocalName == "NameValuePair"))
DataRow newRow = dt.Rows.Add();
ns = nameValuePair.GetDefaultNamespace();
newRow["StartTime"] = (DateTime)timeSlot.Element(ns + "StartTime");
newRow["EndTime"] = (DateTime)timeSlot.Element(ns + "EndTime");
newRow["WorkShift"] = (string)timeSlot.Element(ns + "WorkShift");
newRow["WorkShiftModel"] = (string)timeSlot.Element(ns + "WorkShiftModel");
newRow["UtilizationCategory"] = (string)timeSlot.Element(ns + "UtilizationCategory");
newRow["UtilizationCategoryDetail"] = (string)timeSlot.Element(ns + "UtilizationCategoryDetail");
newRow["Remarks"] = (string)timeSlot.Element(ns + "Remarks");
newRow["OperatorPerson"] = (string)timeSlot.Element(ns + "OperatorPerson");
newRow["IsAutoGenerated"] = (Boolean)timeSlot.Element(ns + "IsAutoGenerated");
newRow["UsedEquipmentTypes"] = (string)timeSlot.Element(ns + "UsedEquipmentTypes");
newRow["Name"] = (string)nameValuePair.Element(ns + "Name");
newRow["Value"] = (string)nameValuePair.Element(ns + "Value");
dataGridView1.DataSource = dt;
string root = doc.Root.Name.LocalName;
string xmlIdentification = string.Format("<?xml version=\"1.0\" encoding=\"iso-8859-1\"?><0><TimeSlots></TimeSlots></0>", root);
XDocument outputDoc = XDocument.Parse(xmlIdentification);
XElement timeSlots = outputDoc.Descendants("TimeSlots").FirstOrDefault();
var groups = dt.AsEnumerable().GroupBy(x => new
starttime = x.Field<DateTime>("StartTime"),
endtime = x.Field<DateTime>("EndTime"),
workShiftModel = x.Field<string>("WorkShiftModel"),
utilizationCategory = x.Field<string>("UtilizationCategory"),
utilizationCategoryDetail = x.Field<string>("UtilizationCategoryDetail"),
remarks = x.Field<string>("Remarks"),
operationPerson = x.Field<string>("OperatorPerson"),
isAutoGenerated = x.Field<Boolean>("IsAutogenerated"),
userEquipmentTypes = x.Field<string>("UsedEquipmentTypes")
).ToList();
foreach (var group in groups)
XElement timeSlot = new XElement("TimeSlot");
timeSlots.Add(timeSlot);
timeSlot.Add(new XElement("StartTime", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"), group.Key.starttime));
timeSlot.Add(new XElement("EndTimeTime", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"),group.Key.endtime));
timeSlot.Add(new XElement("WorkShiftModel", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"), group.Key.workShiftModel));
timeSlot.Add(new XElement("UtilizationCategory", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"), group.Key.utilizationCategory));
timeSlot.Add(new XElement("UtilizationCategoryDetail", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"), group.Key.utilizationCategoryDetail));
timeSlot.Add(new XElement("Remarks", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"), group.Key.remarks));
timeSlot.Add(new XElement("OperatorPerson", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"), group.Key.operationPerson));
timeSlot.Add(new XElement("IsAutogenerated", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"), group.Key.isAutoGenerated));
timeSlot.Add(new XElement("UsedEquipmentTypes", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"), group.Key.userEquipmentTypes));
timeSlot.Add(new XElement("NameValuePairs"));
XElement nameValuePairs = timeSlot.Element("NameValuePairs");
foreach (DataRow row in group)
nameValuePairs.Add(new XElement("NameValuePair", new object[]
new XElement("Name", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"),row.Field<string>("Name")),
new XElement("Value", new object[] new XAttribute(XNamespace.Xmlns + "TEST", "TEST"),row.Field<string>("Value")),
));
outputDoc.Save(OUTPUT_FILENAME);
【讨论】：
将数据加载到datagridview不再是问题，在用户进行一些更改后我需要帮助保存。 您是在使用我的代码还是其他数据视图。最好用更改更新 DataTable，然后保存 DataTable。 是的。 NameValuePairs 中的每个名称/值必须在另一列中。 IE。以上是关于将datagridview数据保存到xml的主要内容，如果未能解决你的问题，请参考以下文章
如何使用从 datagridview 检索到的 ID 将数据保存到数据库？
急！在datagridview中修改或增加数据，单击按钮能将写入的数据保存到数据库里？求C#源代码，谢谢交个朋友
如何实现c# winform DataGridView添加一行，添加数据后，保存到数据库？