How to filter the records with searching when underlying items source is DataTable in WPF DataGrid (SfDataGrid)?

private DataTable dataTableCollection;
 
//Gets the data for DataTable object.
dataTableCollection = GetGridData();
 
//Convert DataTable collection as Dyanamic collection.
var dynamicCollection = new ObservableCollection<dynamic>();
foreach (DataRow row in dataTableCollection.Rows)
 {
   dynamic dyn = new ExpandoObject();
   dynamicCollection.Add(dyn);
   foreach (DataColumn column in dataTableCollection.Columns)
    {
      var dic = (IDictionary<string, object>)dyn;
      dic[column.ColumnName] = row[column];
    }
 }
 
DynamicOrders = dynamicCollection;