javascript multiplication in Gridview column

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Hai i my gridview i am having three columns Price,Quantity,Total Price, Price and TotalPrice are label and Quantity is the TextBox,now i need to total Price =Price*Quantity in Jquery or java script Please Help Me: Below is my code

XML

<asp:GridView ID="GRVItem" DataKeyNames="ItemCode,ItemName" runat="server" Font-Names="Calibri"
                        Font-Size="11pt" AlternatingRowStyle-BackColor="#C2D69B" AllowPaging="True" PageSize="5"
                        ShowHeader="true" CssClass="mGrid" PagerStyle-CssClass="pgr" AlternatingRowStyle-CssClass="alt"
                        Width="1000px" padding-top=" 70px;" AutoGenerateColumns="false">
                        <HeaderStyle BorderColor="Gray" BorderStyle="Solid" Font-Bold="true" BackColor="#76C3FD" />
                        <Columns>
            <asp:BoundField HeaderText="Price" DataField="AvgPrice" ReadOnly="true" />
                                <asp:TemplateField HeaderText="Quantity">
                                <ItemStyle HorizontalAlign="center" Width="13%" />
                                <HeaderStyle HorizontalAlign="center" />
                                <ItemTemplate>
                                    <asp:TextBox ID="txtQuantity" runat="server" Width="50%"/>
                                </ItemTemplate>
                                </asp:TemplateField>
                                 <asp:TemplateField HeaderText="Total Price">
                                <ItemStyle HorizontalAlign="center" Width="13%" />
                                <HeaderStyle HorizontalAlign="center" />
                                <ItemTemplate>
                                    <asp:Label runat="server" ID="lbltotPrice"></asp:Label>
                                </ItemTemplate>
                            </asp:TemplateField>
                        </Columns>
                    </asp:GridView>

Posted 23-Aug-13 23:30pm

DhananjayanP

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Shobhana.n · Answer 1 · 2013-08-24T08:53:00

Hi,
You need to do implement small Js function and call it on onblur of quantity text box.But make sure that u need to check that supplied parameters number or not.otherwise it will give as NAN error. u can use isNaN() function to chek that.

function Calculate(ctrl) {
var priceVal = $(ctrl).parent().parent().children(":first-child").html();
var qty = ctrl.value;
var totalPrice = priceVal * qty;
$(ctrl).parent().parent().children(":last-child").html(totalPrice);
}

<asp:gridview id="GRVItem" runat="server" font-names="Calibri" font-size="11pt" alternatingrowstyle-backcolor="#C2D69B" xmlns:asp="#unknown">
AllowPaging="True" PageSize="5" ShowHeader="true" CssClass="mGrid" PagerStyle-CssClass="pgr"
AlternatingRowStyle-CssClass="alt" Width="100%" padding-top=" 70px;" AutoGenerateColumns="false">
<HeaderStyle BorderColor="Gray" BorderStyle="Solid" Font-Bold="true" BackColor="#76C3FD" />
<columns> <asp:boundfield headertext="Price" datafield="AvgPrice" readonly="true">
<asp:templatefield headertext="Quantity">
<itemstyle horizontalalign="center" width="13%">
<HeaderStyle HorizontalAlign="center" />
<itemtemplate>
<asp:textbox id="txtQuantity" onblur="javascript:return Calculate(this);" runat="server">
Width="30%" />

<asp:templatefield headertext="Total Price">
<itemstyle horizontalalign="center" width="13%">
<HeaderStyle HorizontalAlign="center" />
<itemtemplate>
<asp:label runat="server" id="lbltotPrice">