private void cboSelectCategory_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            int intSelectedIndex;

            try
            {
                intSelectedIndex = cboSelectCategory.SelectedIndex - 2;

                if (intSelectedIndex == -1)
                {
                    TheFindAvailableActiveToolsDataSet = TheToolsClass.FindAvailableActiveTools();

                    dgrResults.ItemsSource = TheFindAvailableActiveToolsDataSet.FindAvailableActiveTools;
                }
                else if (intSelectedIndex > -1)
                {
                    ThefindAvailableActiveToolsByCategoryDataSet = TheToolsClass.FindAvailableActiveToolsByCategory(TheFindSortedToolCategoryDataSet.FindSortedToolCategory[intSelectedIndex].ToolCategory);

                    dgrResults.ItemsSource = ThefindAvailableActiveToolsByCategoryDataSet.FindAvailableActiveToolsByCategory;
                }
            }
            catch (Exception Ex)
            {
                TheEventLogClass.InsertEventLogEntry(DateTime.Now, "Blue Jay ERP // Find Available Tools // cbo Select Category Selection Changed " + Ex.Message);

                TheMessagesClass.ErrorMessage(Ex.ToString());
            }
        }