通过C＃中的LINQ在XML文件中按名称搜索并在GridView中显示

Question

Pretty new at this whole web development thing and a morning of google search and looking through stack overflow has pointed me in the right direction, but I'm still having issues.

I have an XML file, Bricks.xml, with the structure :

<?xml version="1.0"?>
<Links>
    <Table1
        Name="Bob Smith"
        Text="GO TEAM!!!"
        Location="Tennis Court"
    />
</Links>

I have a text box, (txtName) and a Button (btnSearch). I would like to be able to take the input from txtName.text and display it in my grid view. I currently have this all set up in panels with one panel for the txtName and btnSearch, which is always visible. I have another panel with the grid view that pulls the whole XML file, and finally a third panel with the same grid view which I intended to use as the "search results." I would think it would be possible to get read of that, and just reload the gridview that is already displayed.

Answer 1

So you would want to do something like this to search through the nodes to find one that has a specific name. Then you just need to do whatever you want with the results ...

string nameToSearch = "Bob";
string rawXML = null;

using (var stream = new StreamReader(File.OpenRead("<YOUR_FILE_PATH>")))
{
    rawXML = stream.ReadToEnd();
}

if (rawXML != null)
{
    XDocument doc = XDocument.Parse(rawXML);
    XElement foundNode = doc.Descendants("Table1").Where(n => n.Attribute("Name").Value.Contains(nameToSearch)).FirstOrDefault();

    if (foundNode != null)
    {
        string name     = foundNode.Attribute("Name").Value;
        string text     = foundNode.Attribute("Text").Value;
        string location = foundNode.Attribute("Location").Value;
    }
}