Gridview编辑时Jquery自动计算自定义列（鼠标离开输入框Jquery计算）

Jquery片段：

<script type="text/javascript">
        function compute(nbBoxQuantity, lblQuantityPerBox, lblQuantity, nbPrice, lblTotalAmounts) {
            if (nbBoxQuantity.value == "" || nbBoxQuantity.length == 0) {
                nbBoxQuantity.value = 0;
            }
            if (lblQuantityPerBox.innerText == "" || lblQuantityPerBox.length == 0) {
                lblQuantityPerBox.innerText(0);
            }
            if (nbPrice.value == "" || nbPrice.length == 0) {
                nbPrice.value = 0;
            }
            if (lblQuantity.innerText == "" || lblQuantity.length == 0) {
                lblQuantity.innerText(0);
            }
            lblQuantity.innerText = nbBoxQuantity.value * lblQuantityPerBox.innerText;
            lblTotalAmounts.innerText = nbPrice.value * lblQuantity.innerText;
        }
    </script>

　　

前台片段：

<swc:DataGridView ID="dgvList" runat="server" DataKeyNames="ID"
                        AllowSorting="true" CurrentSortField="GoodsId"
                        OnRowDeleting="dgvList_RowDeleting" OnRowEditing="dgvList_RowEditing" OnRowDataBound="dgvList_RowDataBound" OnRowCommand="dgvList_RowCommand"
                        OnRowCancelingEdit="dgvList_RowCancelingEdit" OnRowUpdating="dgvList_RowUpdating">
                        <Columns>
                            <swc:TemplateField HeaderText="Id" Visible="false">
                                <ItemTemplate>
                                    <asp:Literal runat="server" ID="ltlId"></asp:Literal>
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <asp:Literal runat="server" ID="ltlId"></asp:Literal>
                                </EditItemTemplate>
                            </swc:TemplateField>
                            <swc:TemplateField HeaderText="编号" Width="100" ItemStyle-HorizontalAlign="Center">
                                <ItemTemplate>
                                    <asp:Literal runat="server" ID="ltlGoodsCode"></asp:Literal>
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <asp:Literal runat="server" ID="ltlGoodsCode"></asp:Literal>
                                </EditItemTemplate>
                            </swc:TemplateField>
                            <swc:TemplateField HeaderText="名称" Width="100" ItemStyle-HorizontalAlign="Center">
                                <ItemTemplate>
                                    <asp:Literal runat="server" ID="ltlGoodsName"></asp:Literal>
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <asp:Literal runat="server" ID="ltlGoodsName"></asp:Literal>
                                </EditItemTemplate>
                            </swc:TemplateField>
                            <swc:TemplateField HeaderText="类型" Width="60" ItemStyle-HorizontalAlign="Center">
                                <ItemTemplate>
                                    <asp:Literal ID="ltlType" runat="server" />
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <asp:Literal ID="ltlType" runat="server" />
                                </EditItemTemplate>
                            </swc:TemplateField>
                            <swc:TemplateField HeaderText="赠品" Width="60" ItemStyle-HorizontalAlign="Center">
                                <ItemTemplate>
                                    <asp:Literal ID="ltlIsGift" runat="server" />
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <asp:DropDownList ID="ddlIsGift" runat="server">
                                        <asp:ListItem Value="True">是</asp:ListItem>
                                        <asp:ListItem Value="False">否</asp:ListItem>
                                    </asp:DropDownList>
                                </EditItemTemplate>
                            </swc:TemplateField>
                            <swc:TemplateField HeaderText="箱数" Width="60" ItemStyle-HorizontalAlign="Center">
                                <ItemTemplate>
                                    <asp:Literal ID="ltlBoxQuantity" runat="server" />
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <swc:NumberBox ID="nbBoxQuantity" runat="server" Digit="0" Width="60" />
                                </EditItemTemplate>
                            </swc:TemplateField>
                            <swc:TemplateField HeaderText="每箱数" Width="60" ItemStyle-HorizontalAlign="Center">
                                <ItemTemplate>
                                    <asp:Label ID="lblQuantityPerBox" runat="server"></asp:Label>
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <asp:Label ID="lblQuantityPerBox" runat="server"></asp:Label>
                                </EditItemTemplate>
                            </swc:TemplateField>
                            <swc:TemplateField HeaderText="数量" Width="60" ItemStyle-HorizontalAlign="Center">
                                <ItemTemplate>
                                    <asp:Label ID="lblQuantity" runat="server"></asp:Label>
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <asp:Label ID="lblQuantity" runat="server"></asp:Label>
                                </EditItemTemplate>
                            </swc:TemplateField>
                            <swc:TemplateField HeaderText="单价" Width="60" ItemStyle-HorizontalAlign="Center">
                                <ItemTemplate>
                                    <asp:Literal ID="ltlPrice" runat="server" />
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <swc:NumberBox ID="nbPrice" runat="server" Digit="2" Width="60" />
                                </EditItemTemplate>
                            </swc:TemplateField>
                            <swc:TemplateField HeaderText="总价" Width="60" ItemStyle-HorizontalAlign="Center">
                                <ItemTemplate>
                                    <asp:Label ID="lblTotalAmounts" runat="server"></asp:Label>
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <asp:Label ID="lblTotalAmounts" runat="server"></asp:Label>
                                </EditItemTemplate>
                            </swc:TemplateField>
                            <asp:CommandField ShowDeleteButton="True" ShowEditButton="True" HeaderText="操作" HeaderStyle-Width="60" />
                        </Columns>
                    </swc:DataGridView>

　　

后台片段：

protected void dgvList_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            GridViewRow row = e.Row;
            switch (row.RowType)
            {
                case DataControlRowType.DataRow:
                    SC_PurchaseItem item = row.DataItem as SC_PurchaseItem;
                    if (item.Id != Guid.Empty)
                    {
                        Literal ltlId = row.FindControl<Literal>("ltlId");
                        Literal ltlGoodsCode = row.FindControl<Literal>("ltlGoodsCode");
                        Literal ltlGoodsName = row.FindControl<Literal>("ltlGoodsName");
                        Literal ltlType = row.FindControl<Literal>("ltlType");
                        Label lblQuantityPerBox = row.FindControl<Label>("lblQuantityPerBox");
                        Label lblQuantity = row.FindControl<Label>("lblQuantity");
                        Label lblTotalAmounts = row.FindControl<Label>("lblTotalAmounts");
 
                        var good = bll.Get<M_Goods>(item.GoodsId);
                        ltlId.Text = item.Id.ToString();
                        ltlGoodsCode.Text = good.GoodsCode;
                        ltlGoodsName.Text = good.GoodsName;
                        ltlType.Text = good.GoodsType.ToText();
                        lblQuantityPerBox.Text = item.QuantityPerBox.ToString();
 
                        //if (e.Row.RowState == DataControlRowState.Edit)
                        if (e.Row.RowState == (DataControlRowState.Alternate | DataControlRowState.Edit) || e.Row.RowState == DataControlRowState.Edit)
                        {
                            System.Web.UI.WebControls.DropDownList ddlIsGift = row.FindControl<System.Web.UI.WebControls.DropDownList>("ddlIsGift");
                            NumberBox nbBoxQuantity = row.FindControl<NumberBox>("nbBoxQuantity");
                            NumberBox nbPrice = row.FindControl<NumberBox>("nbPrice");
 
                            ddlIsGift.SelectedValue = item.IsGift.ToString();
                            nbBoxQuantity.Value = item.BoxQuantity.ToHtmlDecode();
                            nbPrice.Text = item.Price.ToHtmlDecode();
 
nbBoxQuantity.Attributes.Add("onchange", "compute(" + nbBoxQuantity.ClientID + "," + lblQuantityPerBox.ClientID + "," + lblQuantity.ClientID + "," + nbPrice.ClientID + "," + lblTotalAmounts.ClientID + ");");
                            nbPrice.Attributes.Add("onchange", "compute(" + nbBoxQuantity.ClientID + "," + lblQuantityPerBox.ClientID + "," + lblQuantity.ClientID + "," + nbPrice.ClientID + "," + lblTotalAmounts.ClientID + ");");
                        }
                        else
                        {
                            Literal ltlIsGift = row.FindControl<Literal>("ltlIsGift");
                            Literal ltlBoxQuantity = row.FindControl<Literal>("ltlBoxQuantity");
                            Literal ltlPrice = row.FindControl<Literal>("ltlPrice");
 
                            ltlIsGift.Text = item.IsGift ? "是" : "否";
                            ltlBoxQuantity.Text = item.BoxQuantity.ToHtmlDecode();
                            ltlPrice.Text = item.Price.ToHtmlDecode();
                        }
                        lblQuantity.Text = (item.BoxQuantity * item.QuantityPerBox).ToHtmlDecode();
                        lblTotalAmounts.Text = ((item.BoxQuantity * item.QuantityPerBox) * item.Price).ToHtmlDecode();
                    }
                    break;
            }
        }
        protected void dgvList_RowCommand(object sender, GridViewCommandEventArgs e)
        {
 
        }
 
        protected void dgvList_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            GridView gv = (GridView)sender;
            string id = ((System.Web.UI.WebControls.Literal)gv.Rows[e.RowIndex].FindControl("ltlId")).Text;
            SC_PurchaseItem entity = new SC_PurchaseItem
            {
                Id = new Guid(id),
                UpdatedDate = DateTime.Now,
                UpdatedUser = CurrentUser.DisplayName
            };
            PurchaseBll bll = new PurchaseBll();
            bll.DeletePurchaseItem(entity);
            this.BindGrid();
        }
        protected void dgvList_RowEditing(object sender, GridViewEditEventArgs e)
        {
            GridView gv = (GridView)sender;
            gv.EditIndex = e.NewEditIndex;
            this.BindGrid();
        }
        protected void dgvList_Sorting(object sender, GridViewSortEventArgs e)
        {
            this.BindGrid();
        }
        protected void dgvList_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
            dgvList.EditIndex = -1;
            this.BindGrid();
        }
        protected void dgvList_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            GridView gv = (GridView)sender;
            string id = ((System.Web.UI.WebControls.Literal)gv.Rows[e.RowIndex].FindControl("ltlId")).Text;
            bool ddlIsGift = ((System.Web.UI.WebControls.DropDownList)gv.Rows[e.RowIndex].FindControl("ddlIsGift")).SelectedValue.As<bool>();
            int nbBoxQuantity = ((NumberBox)gv.Rows[e.RowIndex].FindControl("nbBoxQuantity")).Value.As<int>();
            int lblQuantity = ((Label)gv.Rows[e.RowIndex].FindControl("lblQuantity")).Text.As<int>();
            decimal nbPrice = ((NumberBox)gv.Rows[e.RowIndex].FindControl("nbPrice")).Value.As<decimal>();
 
            PurchaseBll bll = new PurchaseBll();
            SC_PurchaseItem entity = new SC_PurchaseItem
            {
                Id = new Guid(id),
                IsGift = ddlIsGift,
                BoxQuantity = nbBoxQuantity,
                Quantity = lblQuantity,
                Price = nbPrice,
                UpdatedDate = DateTime.Now,
                UpdatedUser = CurrentUser.DisplayName
            };
            bll.UpdatePurchaseItem(entity);
 
            gv.EditIndex = -1;
            this.BindGrid();
        }