How would I go about getting the ID information using Linq. I'm trying to add them to an array of int.
<FactionAttributes>
<name>Player</name>
<id>0</id>
<relationModifier>1</relationModifier>
<relations>
<id0>100</id0>
<id1>50</id1>
<id2>50</id2>
<id3>50</id3>
<id4>50</id4>
<id5>50</id5>
</relations>
</FactionAttributes>
That is my XML.
Here is the code I'm using so far.
void InitFactions()
{
int count = 0;
string filepath = Application.dataPath + "/Resources/factiondata.xml";
XDocument factionXML = XDocument.Load(filepath);
var factionNames = from factionName in factionXML.Root.Elements("FactionAttributes")
select new {
factionName_XML = (string)factionName.Element("name"),
factionID_XML = (int)factionName.Element("id"),
factionRelations_XML = factionName.Element("relations")// Need to turn this into array.
};
foreach ( var factionName in factionNames)
++count;
foreach ( var factionName in factionNames)
{
Factions f = new Factions();
f.otherFactionsName = new string[count];
f.otherFactionsRelation = new int[count];
int others = 0;
f.FactionName = factionName.factionName_XML;
Debug.Log(factionName.factionRelations_XML);
// Adds Rivals, not self to other list.
foreach (var factionName2 in factionNames)
{
if (factionName.factionID_XML == factionName2.factionID_XML)
continue;
f.otherFactionsName[(int)factionName2.factionID_XML] = factionName2.factionName_XML;
// THIS IS WHERE IM ADDING THE RELATIONS IN //
f.otherFactionsRelation[(int)factionName2.factionID_XML] = factionName.factionRelations_XML[(int)factionName2.factionID_XML];
Debug.Log(f.FactionName + " adds: " + factionName2.factionName_XML);
++others;
}
}
}
I have made multiple attempts using nodes and what not. I can't seem to figure out the correct syntax.
XDocument doc = XDocument.Load(Path);
//To get <id>
var MyIds = doc.Element("FactionAttributes").Element("id").Value;
//To get <id0>, <id1>, etc.
var result = doc.Element("FactionAttributes")
.Element("relations")
.Elements()
.Where(E => E.Name.ToString().Contains("id"))
.Select(E => new { IdName = E.Name, Value = E.Value});
If you want array of ints replace the select with this
.Select(E => Convert.ToInt32(E.Value)).ToArray();
If you are just after the relations Ids use this simple query
var doc = XDocument.Load("c:\\tmp\\test.xml");
var ids = doc.Descendants("relations").Elements().Select(x => x.Value);
If you want the Id and the relations ids in one array use this
var id = doc.Descendants("id").Select(x=>x.Value).Concat(doc.Descendants("relations").Elements().Select(x => x.Value));
Related
I'm new to using Linq so I don't understand some things or its syntax. I want to group a list and then loop through it with foreach, like my logic below. Obviously my logic doesn't work.
My code:
var final = finalv.Union(finalc);
final = final.GroupBy(x => x.Clave);
foreach (var articulo in final)
{
Articulo articulo2 = new Articulo();
articulo2.ArtID = articulo.ArtID;
articulo2.Clave = articulo.Clave;
articulo2.ClaveAlterna = articulo.ClaveAlterna;
lista.Add(articulo2);
}
First, such usage is syntactically consistent with this overloaded method of GroupBy: GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>), and it will return a IEnumerable<IGrouping<TKey,TSource>> variable.
That means, if you run final.GroupBy(x => x.Clave), let's assume he returns finalWithGrouped, then finalWithGrouped.Key is the key and finalWithGrouped.ToList() is a collection of all variables with the same key(at here, it is with the same Clave).
And for your code, try this:
var final = finalv.Union(finalc);
var finalWithGrouped = final.GroupBy(x => x.Clave);
foreach (var articulosWithSameClavePair in finalWithGrouped)
{
var clave = articulosWithSameClavePair.Key;
var articulos = articulosWithSameClavePair.ToList();
foreach(var articulo in articulos)
{
Articulo articulo2 = new Articulo();
articulo2.ArtID = articulo.ArtID;
articulo2.Clave = articulo.Clave;
articulo2.ClaveAlterna = articulo.ClaveAlterna;
lista.Add(articulo2);
}
}
I suggest you read some examples of using GroupBy.
When you group a list, it will return a key and groued list and you are trying reach a single property of a list.
When you group an data, you can convert it to dictionary, It is not nessesary but better way for me. You can try this code:
var final = finalv.Union(finalc);
final = final.GroupBy(x => x.Clave).ToDictionary(s=> s.Key, s=> s.ToList();
foreach (var articulo in final)
{
foreach (var articuloItem in articulo.value)
{
Articulo articulo2 = new Articulo();
articulo2.ArtID = articuloItem.ArtID;
articulo2.Clave = articuloItem.Clave;
articulo2.ClaveAlterna = articuloItem.ClaveAlterna;
lista.Add(articulo2);
}
}
i want to sort the nodes called ImageInfo by the number in the pos node because i have buttons that change the position up or down and i need to sort the ImageInfo node in the correct order when the pos has changed.
i apologise ahead for not having any c# code but i assure you that i have tried so many different things and im in need of help.
here is my xml:
<?xml version="1.0" encoding="utf-8"?>
<MplAndSiImages xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<MplImages>
<ImageInfo>
<pos>1</pos>
<Name>1.png</Name>
<ParentObjectId>b66a23a8-6268-e611-80e2-c4346bad02e8</ParentObjectId>
<Url>http://localhost:8080/b66a23a8-6268-e611-80e2-c4346bad02e8/1.png</Url>
</ImageInfo>
<ImageInfo>
<pos>2</pos>
<Name>2.png</Name>
<ParentObjectId>b66a23a8-6268-e611-80e2-c4346bad02e8</ParentObjectId>
<Url>http://localhost:8080/b66a23a8-6268-e611-80e2-c4346bad02e8/2.png</Url>
</ImageInfo>
<ImageInfo>
<pos>3</pos>
<Name>3.png</Name>
<ParentObjectId>b66a23a8-6268-e611-80e2-c4346bad02e8</ParentObjectId>
<Url>http://localhost:8080/b66a23a8-6268-e611-80e2-c4346bad02e8/3.png</Url>
</ImageInfo>
</MplImages>
<SiImages />
</MplAndSiImages>
here is my c# code:
it is called on the click of an action link button and i need it to change the poition to 1 less to move it up in the list and i have the number change but the xml need s to be sorted so it has the ImageInfo nodes in the correct order.
public ActionResult MoveUp(string name, string id)
{
var pathConfig = WebConfigurationManager.AppSettings["ProductImageFolderPath"];
var url = pathConfig + id + "\\" + "ModelConfig.xml";
XmlDocument doc = new XmlDocument();
doc.Load(url);
XmlNode root = doc.DocumentElement;
XmlNode upNode = root.SelectSingleNode("/MplAndSiImages/MplImages/ImageInfo[Name/text() = '" + name + "']/pos");
string upNodeValue = upNode.InnerText;
int upNodeInt = Int32.Parse(upNodeValue);
upNodeInt = upNodeInt - 1;
var upNodeString = upNodeInt.ToString();
upNode.InnerText = upNodeString;
XmlNode downNode = root.SelectSingleNode("/MplAndSiImages/MplImages/ImageInfo/pos[text() = '" + upNodeString + "']");
string downNodeValue = downNode.InnerText;
int downNodeInt = Int32.Parse(downNodeValue);
downNodeInt = downNodeInt + 1;
var downNodeString = downNodeInt.ToString();
downNode.InnerText = downNodeString;
Func<string, int> ParseIntOrDefault = (string input) =>
{
int output;
int.TryParse(input, out output);
return output;
};
var result = doc.SelectNodes("MplAndSiImages/MplImages/*")
.Cast<XmlNode>()
.OrderBy(element => element.SelectSingleNode("pos").InnerText)
.ToList();
doc.Save(url);
return RedirectToAction("UploadAnImage", new { id = id });
}
I have seen this and tried it but is there any way of doing this with xmldocument:
XElement root = XElement.Load(xmlfile);
var orderedtabs = root.Elements("Tab")
.OrderBy(xtab => (int)xtab.Element("Order"))
.ToArray();
root.RemoveAll();
foreach(XElement tab in orderedtabs)
root.Add(tab);
root.Save(xmlfile);
I am ordering the images to display on a web page.
and when the move up button is pressed the image will be moved up in the list and swap places with the image above it.
Using linq to xml you can:
var result = XDocument.Load("data.xml")
.Descendants("ImageInfo")
.OrderBy(element => element.Element("pos")?.Value)
.ToList();
And in order to order it by the int value of it you can:
Func<string,int> ParseIntOrDefault = (string input) =>
{
int output;
int.TryParse(input, out output);
return output;
};
var result = XDocument.Load("data.xml")
.Descendants("ImageInfo")
.OrderBy(element => ParseIntOrDefault(element.Element("pos")?.Value))
.ToList();
Using XmlDocument to read the xml you can:
var doc = new XmlDocument();
doc.Load("data.xml");
var result = doc.SelectNodes("MplAndSiImages/MplImages/*")
.Cast<XmlNode>()
.OrderBy(element => element.SelectSingleNode("pos").InnerText)
.ToList();
Here too you can use the ParseIntOrDefault from above
This is how the XML file could look:
<data>
<subdata>
<datatype id="1" name="data1">
<xdim>2</xdim>
<ydim>1</ydim>
</datatype>
<datatype id="2" name="data2">
<xdim>3</xdim>
<ydim>4</ydim>
</datatype>
</subdata>
</data>
Now, i want the following:
A list(string) with all datatype id's like "1" & "2" in the preview above
A list(string) with all the < xdim > stuff like "2" & "3" above
A list(string) with all the < ydim > stuff like "1" & "4" above
Are there easy methods built in in C# for stuff like this? Or could anyone help me with this question?
Jonas
You can use Descendents method.
This method reads all the child nodes even the nested ones where node name matches with specified string.
var Idstring = MyXml.Descendants("datatype").Select (x=>x.Attribute("Id")).ToList();
var xdimstring = MyXml.Descendants("xdim").Select (x=>x.Value).ToList();
var ydimstring = MyXml.Descendants("ydim").Select (x=>x.Value).ToList();
To Appease your curiosity :)
This how you can get nodes from specifically subdata node.
var Idstring = MyXml.Descendants("Subdata").Descendants("datatype").Select (x=>x.Attribute("Id")).ToList();
var xdimstring = MyXml.Descendants("Subdata").Descendants("xdim").Select (x=>x.Value).ToList();
var ydimstring = MyXml.Descendants("Subdata").Descendants("ydim").Select (x=>x.Value).ToList();
Now let say you have Multiple subdata and you want to read nodes only from first one...Simply use First linq extension method
var Idstring = MyXml.Descendants("Subdata").First().Descendants("datatype").Select (x=>x.Attribute("Id")).ToList();
This works and is fairly neat and simple:
string xml =
#"<data>
<subdata>
<datatype id=""1"" name=""data1"">
<xdim>2</xdim>
<ydim>1</ydim>
</datatype>
<datatype id=""2"" name=""data2"">
<xdim>3</xdim>
<ydim>4</ydim>
</datatype>
</subdata>
</data>";
var xelem = XElement.Parse(xml);
var allIDs = xelem
.Descendants()
.Where (x => x.Attribute("id") != null)
.Select (x => x.Attribute("id").Value)
.ToList();
var allXdims = xelem
.XPathSelectElements("//xdim")
.Select (x => x.Value)
.ToList();
var allYdims = xelem
.XPathSelectElements("//ydim")
.Select (x => x.Value)
.ToList();
Obviously the part at the start is just getting the XML into an XElement. You might want to do this with:
var xelem = XElement.Load(myXmlLocation);
instead.
The easiest way to convert classes to and from XML in C# is XML Serialization
For your example, you could create a class with member variables corresponding to the tags in your XML. When you want to create your XML file, you serialize the class to an XML File.
When your want to read back the information, you deserialize the contents of the XML file back to the class you created.
Here's a more comprehensive article: https://msdn.microsoft.com/en-us/library/58a18dwa(v=vs.110).aspx
You can use:
XDocument doc = XDocument.Load(#"..\myfile.xml");
to load your file in a XDocument object.
Then use XDocument methods to create string lists of the required id values:
var ids = (from a in doc.Descendants("subdata").Elements().Attributes("id")
select a.Value).ToList();
var xids = (from e in doc.Descendants("datatype").Elements("xdim")
select e.Value).ToList();
var yids = (from e in doc.Descendants("datatype").Elements("ydim")
select e.Value).ToList();
var xmlDocument = new XmlDocument();
xmlDocument.LoadXml(
"<data><subdata><datatype id=\"1\" name=\"data1\"><xdim>2</xdim><ydim>1</ydim></datatype><datatype id=\"2\" name=\"data2\"><xdim>3</xdim><ydim>4</ydim></datatype></subdata></data>");
var nodes = xmlDocument.SelectNodes("//datatype");
var first = new List<string>();
var Second = new List<string>();
var third = new List<string>();
foreach (XmlNode node in nodes)
{
first.Add(node.Attributes["id"].Value);
}
nodes = xmlDocument.SelectNodes("//xdim");
foreach (XmlNode node in nodes)
{
Second.Add(node.InnerText);
}
nodes = xmlDocument.SelectNodes("//ydim");
foreach (XmlNode node in nodes)
{
third.Add(node.InnerText);
}
Try something like this
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication81
{
class Program
{
static void Main(string[] args)
{
string xml =
"<data>" +
"<subdata>" +
"<datatype id=\"1\" name=\"data1\">" +
"<xdim>2</xdim>" +
"<ydim>1</ydim>" +
"</datatype>" +
"<datatype id=\"2\" name=\"data2\">" +
"<xdim>3</xdim>" +
"<ydim>4</ydim>" +
"</datatype>" +
"</subdata>" +
"</data>";
XElement data = XElement.Parse(xml);
var results = data.Descendants("subdata").Elements()
.GroupBy(x => x.Name.LocalName)
.Select(x => new
{
name = x.Key,
value = x.Select(y => (string)y).ToList(),
attributes = x.Attributes()
.Select(y => new {name = y.Name.LocalName, y.Value})
.GroupBy(y => y.name, z => z.Value)
.ToDictionary(y => y.Key, z => z.ToList())
}).ToList();
}
}
}
I am trying get data from the xml. Below is the code which
gets data from the XDocument and return list<t>.
However, p.Element("Sponsor") can sometimes be null. How can I check for the null values
var atClauseList = doc.Descendants(CLAUSE_GROUP_TAG).Descendants(AT_CLAUSE_TAG).Select(p => new AtClause()
{
ClauseNumber = (string)p.Element("Number"),
Sponsors = p.Element("Sponsor").Elements(SPONSOR_TAG).Select(y => y.Value)
.ToList(),
Page = p.Element("Sponsor").Element("aItem").Element("AmendText").Element("Page").ElementValueNull(),
Line = p.Element("Sponsor").Element("aItem").Element("AmendText").Element("Line").ElementValueNull(),
LineText = p.Element("Sponsor").Element("aItem").Element("AmendText").Nodes().OfType<XText>().FirstOrDefault().XTextValueNull(),
ItalicText = p.Element("Sponsor").Element("aItem").Element("AmendText").Element("Italic").ElementValueNull(),
ParaList = p.Element("Sponsor").Element("aItem").Element("AmendText").Elements("Para").Select(L => new Para
{
ParaText = (string)L,
Number = ((System.Xml.Linq.XElement)(L)).AttributeValueNull("Number"),
Quote = ((System.Xml.Linq.XElement)(L)).AttributeValueNull("Quote"),
}
).ToList()
}).ToList();
move your code out of an object initializer, and add some logic to it:
var atClauseList = new List<AtClause>();
foreach(var item in doc.Descendants(CLAUSE_GROUP_TAG).Descendants(AT_CLAUSE_TAG))
{
var atClause = new AtClause();
atClause.ClauseNumber = (string)item.Element("Number");
var sponsor = item.Element("Sponsor");
if (sponsor != null)
{
atClause.Sponsors = sponsor.Elements(SPONSOR_TAG).Select(y => y.Value).ToList();
atClause.Page = sponsor.Element("aItem").Element("AmendText").Element("Page").ElementValueNull();
atClause.Line = sponsor.Element("aItem").Element("AmendText").Element("Line").ElementValueNull();
atClause.LineText = sponsor.Element("aItem").Element("AmendText").Nodes().OfType<XText>().FirstOrDefault().XTextValueNull();
atClause.ItalicText = sponsor.Element("aItem").Element("AmendText").Element("Italic").ElementValueNull();
atClause.ParaList = sponsor.Element("aItem").Element("AmendText").Elements("Para").Select(L => new Para
{
ParaText = (string)L,
Number = ((System.Xml.Linq.XElement)(L)).AttributeValueNull("Number"),
Quote = ((System.Xml.Linq.XElement)(L)).AttributeValueNull("Quote"),
}).ToList();
atClauseList.Add(atClause);
}
You can use sequences rather than leaving the IEnumerable immediately:
var value = (string)p.Elements("Sponsor")
.Elements("aItem")
.Elements("AmendText")
.Elements("Page")
.SingleOrDefault()
I'm having an xml file like
<Root>
<Child val1="1" val2="2"/>
<Child val1="1" val2="3"/>
<Child val1="2" val2="4"/>
</Root>
i need to display the data from the Xml file to a Listview like
(Added A to index value)
Now i'm using like
1.Stores the data in an XmlNodesList
2.Then iterate through the nodeslist and add the attribute value to the list view
Here i can not use Dictionary<String,String> as a temporary storage because there exist multiple keys with same name.
Is there any idea to do this using LINQ to XML.?
Without LINQ:
var doc = new System.Xml.XmlDocument();
doc.LoadXml(xml);
var nodes = doc.SelectNodes("Root/Child");
for (int i = 0; i < nodes.Count; i++)
{
var n = nodes[i];
var index = String.Format("A{0}", i + 1);
var column1 = n.Attributes["val1"].Value;
var column2 = n.Attributes["val1"].Value;
// use variables to add an item to ListView
}
Using LINQ:
using System.Linq;
var doc = new System.Xml.XmlDocument();
doc.LoadXml(xml);
var nodes = doc.SelectNodes("Root/Child");
var arr = nodes
.OfType<XmlNode>()
.ToArray();
var result = arr
.Select(n =>
new
{
ClNo = String.Format("A{0}", Array.IndexOf(arr, n) +1),
Val1 = n.Attributes["val1"].Value,
Val2 = n.Attributes["val2"].Value,
});
ListView list = new ListView();
ListViewItem[] items = result
.Select(r => new ListViewItem(new[] { r.ClNo, r.Val1, r.Val2 })
.ToArray();
list.Items.AddRange(items);