Question

我使用下面的JavaScript代码来获取行总计和网格视图的总计

但问题是$Cost值来自DropDownList dllcost

因此，当我使用DropDownList更改成本值时，总价值不会根据所选的成本值进行更新。

JavaScript代码

<script>
    $(document).ready(function () {
        $(".txtMult input").on('keyup mouseup', multInputs);
        function multInputs() {
            var $mult = 0;
            var $mgrandvalue = 0;
            $("tr.txtMult:gt(0):lt(-1)").each(function () {
                var $Cost = $('.Cost', this).val();
                var $MarketValue = $('.MarketValue', this).val();
                var $Quantity = $('.Quantity', this).val();
                var $total = $Cost * $Quantity;
                var $mvalue = $MarketValue * $Quantity;
                $mult += $total;
                $mgrandvalue += $mvalue;

                $('.multTotal', this).text($total.toFixed(2));
                $('.mvalue', this).text($mvalue.toFixed(2));
            });
            $(".lblGrandCost").text($mult.toFixed(2));

            $(".lblGrandmvalue").text($mgrandvalue.toFixed(2));
        }
    });
</script>

网格视图

<asp:GridView ID="griditem" OnRowDataBound="griditem_RowDataBound" CssClass="table table-borded text-nowrap" GridLines="None" runat="server" ShowFooter="True" AutoGenerateColumns="False">
    <Columns>
        <asp:TemplateField HeaderStyle-Width="225" ControlStyle-Width="225" HeaderText="Item">
            <ItemTemplate>
                <asp:DropDownList DataValueField="ItemID" AutoPostBack="true" OnSelectedIndexChanged="dllitem_SelectedIndexChanged" DataTextField="ItemName" ID="dllitem" CssClass="form-control" runat="server"></asp:DropDownList>
            </ItemTemplate>
            <HeaderStyle />
        </asp:TemplateField>

        <asp:TemplateField HeaderStyle-Width="225" ControlStyle-Width="225" HeaderText="Cost">
            <ItemTemplate>
                <asp:DropDownList ID="dllcost" CssClass="form-control Cost" runat="server"></asp:DropDownList>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderStyle-Width="109" ControlStyle-Width="109" HeaderText="Market Value">
            <ItemTemplate>
                <asp:TextBox ID="txtmvalue" TextMode="Number" min="0" step="any" CssClass="form-control MarketValue" runat="server"></asp:TextBox>
            </ItemTemplate>

        </asp:TemplateField>
        <asp:TemplateField HeaderStyle-Width="109" ControlStyle-Width="109" HeaderText="Quantity">
            <ItemTemplate>
                <asp:TextBox ID="txtQuantity" TextMode="Number" min="0" CssClass="form-control Quantity" runat="server"></asp:TextBox>
            </ItemTemplate>

        </asp:TemplateField>
        <asp:TemplateField HeaderStyle-Width="50" HeaderText="Total Cost">
            <ItemTemplate>
                <asp:Label ID="lbltotalcost" CssClass="multTotal" runat="server"></asp:Label>
            </ItemTemplate>
            <FooterTemplate>
                <asp:Label ID="lblgrandcost" Text="" runat="server" CssClass="lblGrandCost" />
            </FooterTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderStyle-Width="50" HeaderText="Total M.Value">
            <ItemTemplate>
                <asp:Label ID="lbltotalmv" CssClass="mvalue" runat="server"></asp:Label>
            </ItemTemplate>
            <FooterTemplate>
                <asp:Label ID="lbltotalmvfooter" Text="" runat="server" CssClass="lblGrandmvalue" />
            </FooterTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

Answer 1

您需要为下拉列表添加更改事件，如下所示。

let countDic: [String: AnyObject] = [
    "a" : 1 as NSNumber,
    "b" : "no" as NSString,
    "c" : 2 as NSNumber
]
let countDicContainsString = countDic.contains {
    key, value in //<- `value` is inferred as `AnyObject`
    value is String //<- true when value is a String, false otherwise
}
print(countDicContainsString) //->true

运行DropDownList的Javascript函数onchange事件

1 个答案: