add more descriptions

Author: m4theushw

packages/grid/x-data-grid/src/internals/models/params/gridEditCellParams.ts

@@ -64,7 +64,7 @@ export interface GridCellEditStartParams<
   Api extends GridApiCommon = GridApiCommunity,
 > extends GridCellParams<V, R, F, Api> {
   /**
-   * How this event was triggered.
+   * The reason for this event to be triggered.
    */
   reason: GridCellEditStartReasons;
 }
@@ -85,7 +85,7 @@ export interface GridCellEditStopParams<
   Api extends GridApiCommon = GridApiCommunity,
 > extends GridCellParams<V, R, F, Api> {
   /**
-   * How this event was triggered.
+   * The reason for this event to be triggered.
    */
   reason: GridCellEditStopReasons;
 }

packages/grid/x-data-grid/src/internals/models/params/gridRowParams.ts

@@ -50,9 +50,18 @@ export enum GridRowEditStartReasons {
   deleteKeyDown = 'deleteKeyDown',
 }
 
+/**
+ * Params passed to the `rowEditStart` event.
+ */
 export interface GridRowEditStartParams<R extends GridRowModel = GridRowModel>
   extends GridRowParams<R> {
+  /**
+   * Which field triggered this event.
+   */
   field: string;
+  /**
+   * The reason for this event to be triggered.
+   */
   reason: GridRowEditStartReasons;
 }
 
@@ -64,6 +73,12 @@ export enum GridRowEditStopReasons {
 
 export interface GridRowEditStopParams<R extends GridRowModel = GridRowModel>
   extends GridRowParams<R> {
-  reason: GridRowEditStopReasons;
+  /**
+   * Which field triggered this event.
+   */
   field: string;
+  /**
+   * The reason for this event to be triggered.
+   */
+  reason: GridRowEditStopReasons;
 }