columns: [
            {
              field: "name",
              filterable: {
                cell: {
                  template: function (args) {
                     // Initialize the AutoComplete manually.
                    args.element.kendoAutoComplete({
                      dataSource: args.dataSource,
                      dataTextField: "name",
                      dataValueField: "name",
                      valuePrimitive: true,
                      filtering: (e) => { // Attach a handler to the filtering event.
                        e.filter.operator = function(item, value) {
                          // If the character that was typed in is "É" change it to regular "e".
                          if(value === "É") {
                            value = "e";
                          }
                          // Return the value.
                          return value;
                        }
                      }
                    });
                  },
                }
              }
            }
          ]