>内的标签上我想要的代码可以让我计算

>来自数量和价格的总价格并显示一个宏大的价格

  int  quantity =  3 ; 
十进制 price =  41 。 99 跨度>; 

十进制 totalPrice = price * quantity; 

 //   jokeInCode：我不知道价格是多少。类似于拉古纳塞卡大奖赛的东西？ 
 //  除了笑话，它是什么的税？ 

十进制 tax =  0 。 073 跨度>; 

 decimal  grandPrice = totalPrice *（ 1  + tax）; 

嗨这就是我的做法，但我在计算KM的

  double  tot =  0 ; 
 int  _count =  0 ; 
 decimal  _sumKillometers =  0  .0M; 

  protected   void  grvTravelClaims_RowDataBound（ object  sender，GridViewRowEventArgs e）
 { 

 if （e.Row.RowType == DataControlRowType.DataRow）
 {
 Label lblKM =（Label） e.Row.FindControl（  lblKillometers）; 
 decimal  _Killometers = Decimal.Parse（lblKM.Text）; 
 _sumKillometers + = _Killometers; 
 _count + =  1 ; 

} 
 if （e.Row.RowType == DataControlRowType.Footer）
 {
 Label lblKM =（标签）e.Row.FindControl（  lblTot）; 

 double  rate = Convert.ToDouble（txtRate.Text）; 
 double  sum = Convert.ToDouble（_sumKillometers）; 

 lblKM.Text =（rate * sum）.ToString（）; 

} 
} 

那就是我如何在gridview中调用我的事件

 OnRowDataBound =grvTravelClaims_RowDataBound

 <   asp：GridView     ID   =  grdView     runat   =  server      GridLines   = 无   字体大小  =  15pt  
  
                 宽度  =  486px >  



<   asp：TemplateField     HeaderText   = 数量 >  

<   asp：TextBox     ID   =   txtQty    runat   =  server   高度  =  16px   宽度  =  38px >  




< ;   asp：TemplateField     HeaderText   = 总价格 >  

<   asp：Label     ID   =  lblTotalPrice    runat   =   server   文字  =  0 >  

i want to calculate total price and grand price from gridview values and from texbox for quantity.

i have a gridview and it has got 2 boundfield (description and price) and a textbox also. so i want to calculate total price based on price and entered quantity in that textbox and display it on the label inside the gridview

> i want the code that will allow me to calculate
> the total price from qty and price and display a grand price

int quantity = 3;
decimal price = 41.99;

decimal totalPrice = price * quantity;

// jokeInCode: I have no idea what a grand price is. Something similar to the Laguna Seca Grand Prix?
// Jokes aside, is it something with a tax?

decimal tax = 0.073;

decimal grandPrice = totalPrice * (1 + tax);

Hi this is how I did mine but was calculating KM's

double tot = 0;
int _count = 0;
decimal _sumKillometers = 0.0M;

protected void grvTravelClaims_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                Label lblKM = (Label)e.Row.FindControl("lblKillometers");
                decimal _Killometers = Decimal.Parse(lblKM.Text);
                _sumKillometers += _Killometers;
                _count += 1;
            
            }
            if (e.Row.RowType == DataControlRowType.Footer)
            {
                Label lblKM = (Label)e.Row.FindControl("lblTot");
             
                double rate=Convert.ToDouble(txtRate.Text);
                double sum=Convert.ToDouble(_sumKillometers);
             
                lblKM.Text = (rate * sum).ToString();
                
            }
        }

Then thats how I called my event in the gridview

OnRowDataBound="grvTravelClaims_RowDataBound"

<asp:GridView ID="grdView" runat="server"  GridLines="None" Font-Size="15pt"

        Width="486px">



            <asp:TemplateField HeaderText="Quantity">

                    <asp:TextBox ID="txtQty" runat="server" Height="16px" Width="38px">




            <asp:TemplateField HeaderText="Total Price">

                    <asp:Label ID="lblTotalPrice" runat="server" Text="0">