//Inventory Tab - Runs a sql query with every keystroke within searchTextbox.
private void InventorySearchTextbox_TextChanged(object sender, EventArgs e)
{
if (inventoryGridIndex == 0)
{
inventoryGridIndex = 1;
}
if (String.IsNullOrEmpty(InventorySearchTextbox.Text))
{
Inventory.DisplayInventory(InventoryDataGrid, con);
}
else if (System.Text.RegularExpressions.Regex.IsMatch(InventorySearchTextbox.Text, "^[a-zA-Z0-9]"))
{
Inventory.InventorySearch(InventoryDataGrid, InventoryFilterCombo.Text, InventorySearchTextbox.Text, con);
}
}