如何計算開往事件

Question

我想使總列的總和作爲總計行數據總計。在rowdatabound事件中如何統計總數並在標籤中顯示？

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CssClass="gridview" DataKeyNames="Id" Width="633px" OnRowDataBound="GridView1_RowDataBound"> 


        <Columns> 
         <asp:BoundField DataField="Id" HeaderText="Id" ReadOnly="True" SortExpression="Id" /> 
         <asp:BoundField DataField="Description" HeaderText="Description" SortExpression="Description" /> 
         <asp:BoundField DataField="Quantity" HeaderText="Quantity" SortExpression="Quantity" /> 
         <asp:BoundField DataField="UnitPrice" HeaderText="Unit Price" SortExpression="UnitPrice" /> 
         <asp:BoundField DataField="Total" HeaderText="Total" SortExpression="Total" /> 
        </Columns> 
       </asp:GridView> 

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) 
    { 
     if (e.Row.RowType == DataControlRowType.DataRow) 
     { 

      int value = Convert.ToInt32(e.Row.Cells[2].Text); 
      int value2 = Convert.ToInt32(e.Row.Cells[3].Text); 
      int total = value * value2; 
      e.Row.Cells[4].Text = Convert.ToString(total); 


    int GrandTotal = +total; 
    lblgrandTotal = GrandTotal.ToString(); 

     } 
    } 

Answer 1

您可以通過總增加了變量這樣每一行做在現有GridView1_RowDataBound事件： -

int grandTotal = 0; 
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) 
    { 
     if (e.Row.RowType == DataControlRowType.DataRow) 
     { 
      int value = Convert.ToInt32(e.Row.Cells[2].Text); 
      int value2 = Convert.ToInt32(e.Row.Cells[3].Text); 
      int total = value * value2; 
      grandTotal += total; 
      e.Row.Cells[4].Text = Convert.ToString(total); 
      lblgrandTota.Text = grandTotal.ToString(); 
     } 
    } 

我已經放在grandTotal事件處理程序方法之外的變量，以便它不會被初始化爲每一行。