Delete a Specify Row from a DataTable

How can I delete a specified row from a DataTable and then reload a ViewState with the rest of the rows left? I have the following case below, but I am not able to delete directly from DataTable .

protected void rdItens_DeleteCommand(object sender, GridCommandEventArgs e)
    {
        string ID = e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["Id"].ToString();
        DataTable table = (DataTable)ViewState["ItensGrid"];

        var linha = table.Rows.Find(ID);
        linha.Delete();

        ViewState["ItensGrid"] = table;
    }