Add writeValueAtRange for index-range array writes

1 files changed, 38 insertions, 3 deletions

diff --git a/demo/NodePage.qml b/demo/NodePage.qml
index e677232..9b23502 100644
--- a/demo/NodePage.qml
+++ b/demo/NodePage.qml
@@ -91,6 +91,19 @@ Page {
             ]
         },
         {
+            title: "Index Range Write",
+            description: "Write to specific array elements using OPC UA index"
+                + " range syntax. Examples: \"0\" = first element,"
+                + " \"0:2\" = elements 0–2. Enter the range and the value(s)"
+                + " to write (comma-separated for multi-element ranges).",
+            indexRange: true,
+            nodes: [
+                "ns=1;s=int32_rw_array",
+                "ns=1;s=float_rw_array",
+                "ns=1;s=string_rw_array"
+            ]
+        },
+        {
             title: "Non-Existent Nodes",
             description: "These node IDs do not exist on the server."
                 + " The row should show no value and no metadata in the tooltip.",
@@ -243,19 +256,41 @@ Page {
                     }
 
                     // Column 3: Edit area (writable) or READ-ONLY label
+
+                    // Normal write controls (non-index-range pages)
                     TextField {
                         id: editField
-                        visible: node.writable
+                        visible: node.writable && !currentPage.indexRange
                         Layout.fillWidth: true
                         placeholderText: "Enter value..."
                         onAccepted: node.writeValue(text)
                     }
                     Button {
-                        id: writeButton
-                        visible: node.writable
+                        visible: node.writable && !currentPage.indexRange
                         text: "Write"
                         onClicked: node.writeValue(editField.text)
                     }
+
+                    // Index range write controls
+                    TextField {
+                        id: rangeField
+                        visible: node.writable && currentPage.indexRange === true
+                        Layout.preferredWidth: 60
+                        placeholderText: "Range"
+                    }
+                    TextField {
+                        id: rangeValueField
+                        visible: node.writable && currentPage.indexRange === true
+                        Layout.fillWidth: true
+                        placeholderText: "Value(s)..."
+                        onAccepted: node.writeValueAtRange(text, rangeField.text)
+                    }
+                    Button {
+                        visible: node.writable && currentPage.indexRange === true
+                        text: "Write Range"
+                        onClicked: node.writeValueAtRange(rangeValueField.text, rangeField.text)
+                    }
+
                     Label {
                         visible: !node.writable
                         text: "(READ-ONLY)"