Visual Basic 6.0

Demonstrate the XML I, J, and K Properties

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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.

Visual Basic 6.0

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

Dim xml As New ChilkatXml

xml.Tag = "tripleNested"

Dim i As Long
i = 0
Dim j As Long
j = 0
Dim k As Long
k = 0

Dim sbValue As New ChilkatStringBuilder
Dim bAutoCreate As Long
bAutoCreate = 1

Do While i < 3
    xml.I = i
    j = 0
    Do While j < 4
        xml.J = j
        k = 0
        Do While k < 2
            xml.K = k

            Dim n As Long
            n = i * 100 + j * 10 + k
            sbValue.Clear 
            success = sbValue.AppendInt(n)

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

Debug.Print 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
Dim aCount As Long
aCount = xml.NumChildren
Do While i < aCount
    xml.I = i
    j = 0
    Dim bCount As Long
    bCount = xml.NumChildrenAt("a[i]")
    Do While j < bCount
        xml.J = j
        k = 0
        Dim cCount As Long
        cCount = xml.NumChildrenAt("a[i]|b[j]")
        Do While k < cCount
            xml.K = k
            Debug.Print i & ", " & j & ", " & k & ": " & xml.GetChildIntValue("a[i]|b[j]|c[k]")
            k = k + 1
        Loop
        j = j + 1
    Loop
    i = i + 1
Loop

' 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
'