(C#) XML SearchForTag Method

Demonstrates the SearchForTag and SearchForTag2 methods.

The input XML, available at http://www.chilkatsoft.com/data/fruitSearch.xml, is this:

<root>
    <searchRoot>
        <fruit color="red">apple</fruit>
        <fruit color="green">pear</fruit>
        <veg color="orange">carrot</veg>
        <meat animal="cow">beef</meat>
        <xyz>
            <fruit color="blue">blueberry</fruit>
            <veg color="green">broccoli</veg>
        </xyz>
        <fruit color="purple">grape</fruit>
        <cheese color="yellow">cheddar</cheese>
    </searchRoot>
    <fruit color="red">strawberry</fruit>
    <fruit color="orange">peach</fruit>
    <root></root>
</root>

Download: Chilkat .NET Assemblies

Chilkat.Xml xml = new Chilkat.Xml();
Chilkat.Xml xSearchRoot = null;
Chilkat.Xml xBeginAfter = null;
Chilkat.Xml xFound = null;

bool success;
//  The sample input XML is available at http://www.chilkatsoft.com/data/fruitSearch.xml
success = xml.LoadXmlFile("fruitSearch.xml");
if (success != true) {
    textBox1.Text += xml.LastErrorText + "\r\n";
    return;
}

//  Search the sub-tree rooted at "searchRoot"
xSearchRoot = xml.FindChild("searchRoot");

//  Search for all nodes having the tag "fruit"
xBeginAfter = null;
xFound = xSearchRoot.SearchForTag(xBeginAfter,"fruit");
while (!(xFound == null )) {

    textBox1.Text += xFound.Content + "\r\n";

    xBeginAfter = xFound;
    xFound = xSearchRoot.SearchForTag(xBeginAfter,"fruit");
}

textBox1.Text += "--------------------------" + "\r\n";

//  ---------------------------------------------------------------------------------
//  Now do the same, but instead use SearchForTag2
//  which updates the internal reference of the caller instead
//  of returning the found node.
Chilkat.Xml xSearch = null;

xBeginAfter = xSearchRoot.GetSelf();
xSearch = xSearchRoot.GetSelf();

success = xSearch.SearchForTag2(xBeginAfter,"fruit");
while (success == true) {

    textBox1.Text += xSearch.Content + "\r\n";

    //  Copy the internal references so that the next search
    //  begins after the found node.
    xBeginAfter.CopyRef(xSearch);
    xSearch.CopyRef(xSearchRoot);

    success = xSearch.SearchForTag2(xBeginAfter,"fruit");
}