Dynamically Switch Form View Based on Field Value on the form (ServiceNowDevProgram#1674)

* Create README.md

* Create dynamic-form-view-onchange.js

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* Update dynamic-form-view-onchange.js

* Update README.md

Author: juhikumarimodi6

Client-Side Components/Client Scripts/Dynamically Switch Form View Based on Field Value/README.md

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+## Dynamically Switch Form View Based on Field Value
+
+This client script demonstrates how to **automatically switch form views** based on the value of a field.
+
+**Use case:**  
+For example, if the **Category** field is set to *Hardware*, the form view switches to **ess**.  
+You can extend this by updating the mapping object to support additional fields and values (e.g., *Software → itil*, *Network → support*).
+
+**Benefit:**  
+Improves user experience by guiding users to the **most relevant form view**, ensuring the right fields are shown for the right scenario.
+
+**Test:**  
+- Change the **Category** field to *Hardware* → Form view should switch to **ess**.  
+- Update mapping to add new conditions (e.g., *Software → itil*) and verify the view switches accordingly.
+
+**How to Use:**  
+1. **Modify the table name** in the `switchView` function to match your target table:
+   ```javascript
+   switchView("section", "<your_table_name>", targetView);
+2. **Modify the view mapping**

Client-Side Components/Client Scripts/Dynamically Switch Form View Based on Field Value/dynamic-form-view-onchange.js

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+/**
+ * dynamic-form-view-onchange.js
+ *
+ * Dynamically switches the form view automatically depending on the value of a specific field.
+ * Example: If Category = Hardware → switch to ess view.
+ * Extendable by modifying the mapping object for different fields/values.
+ *
+ */
+
+function onChange(control, oldValue, newValue, isLoading) {
+  if (isLoading || !newValue) {
+    return;
+  }
+
+  // Field value → view name mapping
+  var viewMapping = {
+    "hardware": "ess",
+    "software": "itil",
+    "network": "support"
+  };
+
+  var fieldValue = newValue.toLowerCase();
+  var targetView = viewMapping[fieldValue];
+
+  if (targetView) {
+    try {
+      // Here for example the table name is incident
+      switchView("section", "incident", targetView);
+    } catch (e) {
+      console.error("View switch failed: ", e);
+    }
+  }
+}