Removing flag OperationInReleasingDataSource from DataGridView.cs

src/System.Windows.Forms/System/Windows/Forms/Controls/DataGridView/DataGridView.Methods.cs

@@ -14910,7 +14910,19 @@ protected virtual void OnDataSourceChanged(EventArgs e)
     /// <summary>
     ///  Refresh items when the DataSource is disposed.
     /// </summary>
-    private void OnDataSourceDisposed(object? sender, EventArgs e) => DataSource = null;
+    private void OnDataSourceDisposed(object? sender, EventArgs e)
+    {
+        try
+        {
+            _dataGridViewOper[OperationInReleasingDataSource] = true;
+            DataSource = null;
+            CurrentCell = null;
+        }
+        finally
+        {
+            _dataGridViewOper[OperationInReleasingDataSource] = false;
+        }
+    }
 
     protected virtual void OnDefaultCellStyleChanged(EventArgs e)
     {

src/System.Windows.Forms/System/Windows/Forms/Controls/DataGridView/DataGridView.cs

@@ -1922,17 +1922,6 @@ public object? DataSource
                     newDataSource.Disposed += OnDataSourceDisposed;
                 }
 
-                _dataGridViewOper[OperationInReleasingDataSource] = true;
-
-                try
-                {
-                    CurrentCell = null;
-                }
-                finally
-                {
-                    _dataGridViewOper[OperationInReleasingDataSource] = false;
-                }
-
                 if (DataConnection is null)
                 {
                     DataConnection = new DataGridViewDataConnection(this);