error function expected when getting cell valueo I...

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i have a gridview with textbox qty and rate and amt

when the user enters qty and then rate on blur of rate textbox i need amt to be calculated

i hve script for the same but i get error 'function expected' in line JavaScript runtime error: Function expected

GVRow1.cells(child1).childNodes(0).type

C#

function CalAmt(SelectRow) {

              var GridRow= SelectRow.parentNode.parentNode;

             var row = SelectRow.parentNode.parentNode;
             var Qty;
             var Rate;

             for (var child1 = 0; child1 <= GridRow.cells.length - 1; child1++)
        {
                 alert(GridRow.cells(child1).childNodes(0).type);// error
                 if (GridRow.cells(child1).childNodes(0).type == "text")
                 {
                     if (GridRow.cells(child1).childNodes(0).id.indexOf("txtqty") > 0)
                      {
                          Qty = GridRow.cells(child1).childNodes(0).value;
                      }

                      if (GridRow.cells(child1).childNodes(0).id.indexOf("txtrate") > 0)
                      {
                          Rate = GridRow.cells(child1).childNodes(0).value;

                      }

                      if (GridRow.cells(child1).childNodes(0).id.indexOf("txttotal") > 0)
                       {
                           GridRow.cells(child1).childNodes(0).value = Qty * Rate;
                      }
                  }

             }
         }

Posted 17-Jan-14 5:04am

svknair

Updated 17-Jan-14 5:15am

fixthebugg

v2

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Karthik_Mahalingam · Answer 1 · 2014-01-17T06:04:00

Try like this..

HTML

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">

    <script src="jquery.js.js"></script>
    <script type="text/javascript">

        var calc = function (txt) {

            var rowid = txt.id.split('_')[2];// GridView1_txtRate_0
            var Rate = parseFloat(document.getElementById('GridView1_txtRate_' + rowid).value);
            var Qty = parseFloat(document.getElementById('GridView1_txtQty_' + rowid).value);
            document.getElementById('GridView1_txtAmt_' + rowid).value = Rate * Qty;
        }

    </script>
</head>
<body>
    <form id="form1" runat="server">

        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">

            <Columns>
                <asp:TemplateField HeaderText="Rate">
                    <ItemTemplate>
                        <asp:TextBox ID="txtRate" onblur="calc(this);" runat="server"></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Qty">
                    <ItemTemplate>
                        <asp:TextBox ID="txtQty" onblur="calc(this);" runat="server"></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Amt">
                    <ItemTemplate>
                        <asp:TextBox ID="txtAmt" runat="server"></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>

            </Columns>
        </asp:GridView>
    </form>
</body>
</html>