/// <summary>
/// Used as a call-back function for when the user chooses to apply a saved variant against the data.
/// </summary>
/// <param name="_variantDetails">A Dictionary object that stores the filters saved in the chosen variant.</param>
public void BeginVariantLoadProcess(Dictionary <string, List <string> > _variantDetails)
{
addVariantToolStripMenuItem.Enabled = false;
// Make sure there is no filters selected already.
ClearSelected();
// Pass Variant details to filters for calibration
FilterData.CalibrateFilters(_variantDetails);
BuildQueryFilters();
FilterUtils.FiltersLoaded = false;
CheckFilterStatus();
// Update the checked items that are applied.
UpdateColumnFilterCheckedItems();
UpdateDateFilterCheckedItems();
UpdateAdvancedFilterCheckedItems();
// Start the data load process.
BeginDataLoadProcess();
// Update the buttons.
UpdateFilterButtons();
}