(PowerShell) Demonstrate the XML I, J, and K Properties

Demonstrates the XML I, J, and K properties. These properties can be used in paths to access the I'th, J'th, or K'th child in a path. Three indexing properties are provided to allow for triple-nested loops using this feature.

Note: This example requires Chilkat v9.5.0.64 or later.

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# Note: This example requires Chilkat v9.5.0.64 or later.

$xml = New-Object Chilkat.Xml

$xml.Tag = "tripleNested"

$i = 0
$j = 0
$k = 0

$sbValue = New-Object Chilkat.StringBuilder
$bAutoCreate = $true

while ($i -lt 3) {
    $xml.I = $i
    $j = 0
    while ($j -lt 4) {
        $xml.J = $j
        $k = 0
        while ($k -lt 2) {
            $xml.K = $k

            $n = $i * 100 + $j * 10 + $k
            $sbValue.Clear()
            $sbValue.AppendInt($n)

            $xml.UpdateAt("a[i]|b[j]|c[k]",$bAutoCreate,$sbValue.GetAsString())
            $k = $k + 1
        }

        $j = $j + 1
    }

    $i = $i + 1
}

$($xml.GetXml())

# This is the XML
# See below for code showing how to parse it..

# 	<?xml version="1.0" encoding="utf-8" ?>
# 	<tripleNested>
# 	    <a>
# 	        <b>
# 	            <c>0</c>
# 	            <c>1</c>
# 	        </b>
# 	        <b>
# 	            <c>10</c>
# 	            <c>11</c>
# 	        </b>
# 	        <b>
# 	            <c>20</c>
# 	            <c>21</c>
# 	        </b>
# 	        <b>
# 	            <c>30</c>
# 	            <c>31</c>
# 	        </b>
# 	    </a>
# 	    <a>
# 	        <b>
# 	            <c>100</c>
# 	            <c>101</c>
# 	        </b>
# 	        <b>
# 	            <c>110</c>
# 	            <c>111</c>
# 	        </b>
# 	        <b>
# 	            <c>120</c>
# 	            <c>121</c>
# 	        </b>
# 	        <b>
# 	            <c>130</c>
# 	            <c>131</c>
# 	        </b>
# 	    </a>
# 	    <a>
# 	        <b>
# 	            <c>200</c>
# 	            <c>201</c>
# 	        </b>
# 	        <b>
# 	            <c>210</c>
# 	            <c>211</c>
# 	        </b>
# 	        <b>
# 	            <c>220</c>
# 	            <c>221</c>
# 	        </b>
# 	        <b>
# 	            <c>230</c>
# 	            <c>231</c>
# 	        </b>
# 	    </a>
# 	</tripleNested>
# 

# Parse the XML, without needing to know the number of children.
# That can be discovered with the NumChildrenAt method.

$i = 0
$aCount = $xml.NumChildren
while ($i -lt $aCount) {
    $xml.I = $i
    $j = 0
    $bCount = $xml.NumChildrenAt("a[i]")
    while ($j -lt $bCount) {
        $xml.J = $j
        $k = 0
        $cCount = $xml.NumChildrenAt("a[i]|b[j]")
        while ($k -lt $cCount) {
            $xml.K = $k
            $([string]$i + ", " + $j + ", " + $k + ": " + $xml.GetChildIntValue("a[i]|b[j]|c[k]"))
            $k = $k + 1
        }

        $j = $j + 1
    }

    $i = $i + 1
}

# Output:

# 	0, 0, 0: 0
# 	0, 0, 1: 1
# 	0, 1, 0: 10
# 	0, 1, 1: 11
# 	0, 2, 0: 20
# 	0, 2, 1: 21
# 	0, 3, 0: 30
# 	0, 3, 1: 31
# 	1, 0, 0: 100
# 	1, 0, 1: 101
# 	1, 1, 0: 110
# 	1, 1, 1: 111
# 	1, 2, 0: 120
# 	1, 2, 1: 121
# 	1, 3, 0: 130
# 	1, 3, 1: 131
# 	2, 0, 0: 200
# 	2, 0, 1: 201
# 	2, 1, 0: 210
# 	2, 1, 1: 211
# 	2, 2, 0: 220
# 	2, 2, 1: 221
# 	2, 3, 0: 230
# 	2, 3, 1: 231
#