Handle explicit getRowId=None without breaking grid initialization

CHANGELOG.md

@@ -15,6 +15,7 @@ Links "DE#nnn" prior to version 2.0 point to the Dash Enterprise closed-source D
 
 ### Fixed
 - [#454](https://github.com/plotly/dash-ag-grid/pull/454) fixes issue where a rowCount of 0 would cause the grid not to display new data
+- [#417](https://github.com/plotly/dash-ag-grid/issues/417) fix grid rendering when `getRowId` is explicitly set to `None`
 
 ## [35.2.0] - 2026-04-03
 ### Added 

src/lib/fragments/AgGrid.react.js

@@ -1587,6 +1587,9 @@ export function DashAgGrid(props) {
     const convertedProps = convertAllProps(
         omit(NO_CONVERT_PROPS, {...dashGridOptions, ...restProps})
     );
+    if (convertedProps.getRowId === null) {
+        delete convertedProps.getRowId;
+    }
 
     if ('theme' in convertedProps) {
         if (typeof convertedProps.theme === 'function') {

tests/test_get_row_id.py

@@ -0,0 +1,19 @@
+import dash_ag_grid as dag
+from dash import Dash
+from . import utils
+
+
+def test_get_row_id_none_renders(dash_duo):
+    app = Dash(__name__)
+    app.layout = [
+        dag.AgGrid(
+            id="grid",
+            rowData=[{"test": 1}],
+            columnDefs=[{"field": "test"}],
+            getRowId=None,
+        )
+    ]
+
+    dash_duo.start_server(app)
+    grid = utils.Grid(dash_duo, "grid")
+    grid.wait_for_cell_text(0, 0, "1")