Created or Edited -> User input of Item Details.Qty -> ItemDetails_Qty_Validations

//For Negative validation Check
for each  var in input.Item_Details
{
	var.Balance_Qty=var.Qty;
}
if(row.Qty <= 0 && row.Qty != null)
{
	alert "Please enter positive values";
	row.Qty=null;
}
else
{
	if(row.Rate != null && row.Qty != null && row.Tax != null)
	{
		get_tax_value = GST_Details[ID == ifnull(row.Tax,"")].Total_Rate;
		Tax_calc = ifnull(row.Qty,0.0) * ifnull(row.Rate,0.0) * ifnull(get_tax_value,0.0) / 100;
		amount_calc = ifnull(row.Qty,0.0) * ifnull(row.Rate,0.0);
		row.Sub_Total=ifnull(amount_calc,0.00);
		row.Tax_Value=Tax_calc;
		row.Total_Amount=ifnull(amount_calc,0.0) + ifnull(Tax_calc,0.0);
		tot = 0.0;
		totqty = 0.0;
		subtot = 0.0;
		for each  rec in Item_Details
		{
			tot = tot + ifnull(rec.Total_Amount,0.0);
			totqty = totqty + ifnull(rec.Qty,0.0);
			subtot = subtot + ifnull(rec.Sub_Total,0.0);
		}
		input.Item_Total = tot;
		input.Overall_Total = ifnull(input.Item_Total,0.0) + ifnull(input.Extra_Charge_s_Total,0.0);
		input.Total_Quantity = ifnull(totqty,0.0);
		//new field calculation starts here - 1/4/2023
		input.Gross_Total = ifnull(subtot,0.0);
		if(input.Discount_Amount > 0)
		{
			input.Gross_with_Discount = ifnull(input.Gross_Total,0.0) - ifnull(input.Discount_Amount,0.0);
		}
		else
		{
			input.Gross_with_Discount = ifnull(input.Gross_Total,0.0);
		}
		get_tax_value = GST_Details[ID == ifnull(input.TaxP,"")].Total_Rate;
		if(get_tax_value == 0)
		{
			input.Gross_Value_Tax = 0;
			input.Gross_Total_with_Discount = ifnull(input.Gross_with_Discount,0.0);
		}
		else
		{
			Tax_calc = ifnull(input.Gross_with_Discount,0.0) * ifnull(get_tax_value,0.0) / 100;
			input.Tax_Total = ifnull(Tax_calc,0.0);
			input.Gross_Value_Tax = ifnull(Tax_calc,0.0);
			input.Gross_Total_with_Discount = ifnull(input.Gross_with_Discount,0.0) + ifnull(input.Gross_Value_Tax,0.0);
		}
		if(input.Packing_Forwarding > 0)
		{
			if(get_tax_value == 0)
			{
				Tax_calc1 = 0;
			}
			else
			{
				Tax_calc1 = ifnull(input.Packing_Forwarding,0.0) * ifnull(get_tax_value,0.0) / 100;
			}
			input.PF_Tax_value = ifnull(Tax_calc1,0.0);
			input.PF_Total_with_tax = ifnull(input.Packing_Forwarding,0.0) + ifnull(input.PF_Tax_value,0.0);
		}
		else
		{
			input.PF_Total_with_tax = 0;
		}
		input.Grand_Total = ifnull(input.Gross_Total_with_Discount,0.0) + ifnull(input.PF_Total_with_tax,0.0);
		//new fields calculation ends 
	}
	//For Adding subtotal field
	if(row.Qty != null && row.Rate != null && row.Tax == null)
	{
		row.Sub_Total=row.Qty * row.Rate;
	}
	fet_deli = Delivery_Schedule[Part_No == row.Part_No];
	if(fet_deli.count() >= 1)
	{
		if(row.Qty > fet_deli.sum(Quantity))
		{
			fet_deli.Full_Quantity=false;
		}
	}
}