[英]C# DataGridView binding to subset of XML
I need to populate a DataGridView conditionally. 我需要有条件地填充DataGridView。 The data comes from one XML file, eg
数据来自一个XML文件,例如
<?xml version="1.0" standalone="yes"?>
<people>
<person>
<name>Bob</name>
<dogs>
<dog><name>Rover</name></dog>
<dog><name>Rex</name></dog>
</dogs>
</person>
<person>
<name>Jim</name>
<dogs>
<dog><name>Duke</name></dog>
<dog><name>Colin</name></dog>
<dog><name>Gnasher</name></dog>
</dogs>
</person>
</people>
If I use the following code I can show all dogs in the DataGridView - but I need to restrict the list to those owned by specific people. 如果使用以下代码,则可以显示DataGridView中的所有狗-但我需要将列表限制为特定人员拥有的狗。
DataSet ds = new DataSet();
ds.ReadXml("data.xml");
dataGridView1.DataSource = ds;
dataGridView1.DataMember = "dog";
How do I do this? 我该怎么做呢?
Thanks Stuart 谢谢斯图尔特
You can get the XElements with the following code: 您可以使用以下代码获取XElement:
var xml = XDocument.Load(filePath);
var people = xml.Elements("people").Elements("person");
var dogElements = people.Elements("dogs").Elements("dog").Where(p => p.Parent.Parent.Element("name").Value == "Bob");
var dogs = dogElements.Select(d => new {Name = d.Element("name").Value, Owner = d.Parent.Parent.Element("name").Value});
dataGridView1.DataSource = dogs;
dataGridView1.DataMember = "Name";
Just as an example I selected the owner of the dog as well here. 举个例子,我在这里也选择了狗的主人。
You'll have to add a reference to System.Xml and System.Xml.Linq 您必须添加对System.Xml和System.Xml.Linq的引用
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