<asp:TemplateField HeaderText="所屬年月">

            <ItemTemplate>

                        <asp:TextBox ID="txtDate" runat="server" Width="90%" CssClass="TextBox" MaxLength="5"

                                   Text='<%# Eval("Var_Date") %>' οnblur="this.value=this.value.replace(/\D/g,'');ChkVatInvoice(this,'vatDate');"></asp:TextBox>

            </ItemTemplate>

            <HeaderStyle Width="6%" />

</asp:TemplateField>

 

function ChkVatInvoice(obj, val) {

 var txtVal = "";

            var vatType = "";

            var vatDate = "";

            if (val == "txt") {

                txtVal = $(obj).val();

                vatType = $(obj).parent().prev().children().first().val();

                vatDate = $(obj).parent().prev().prev().prev().prev().children().first().val();

            }

            else if (val == "select") {

                txtVal = $(obj).parent().next().children().first().val();

                vatType = obj.value;

                vatDate = $(obj).parent().prev().prev().prev().children().first().val();

            }

            else {

                txtVal = $(obj).parent().next().next().next().next().children().first().val();

                vatType = $(obj).parent().next().next().next().children().first().val();

                vatDate = $(obj).val();

            }

            if (txtVal != "") {

                if (txtVal.length < 2) {

                    alert("<%= localize.UnifiedNo + localize.IsNotValid %>"); //统编格式无效。

                }

                else {

                    //格式代码

                    var char1 = txtVal.substr(0, 1);

                    var char2 = txtVal.substr(1, 1);

                    if (vatType == "21" || vatType == "23" || vatType == "25") {

                        //前两位必须是英文且要存在于发票字轨

                        if (char1.charCodeAt() >= 65 &&

                      char1.charCodeAt() <= 90 &&

                      char2.charCodeAt() >= 65 &&

                      char2.charCodeAt() <= 90) {

  //检测是否存在发票字轨

                            var xmlURL = "JsonData.ashx?t=IT&val=" + txtVal.substr(0, 2) + "&vatType=" + vatType + "&vatDate=" + vatDate;

                            $.get(xmlURL, {}, function(result) {

                                if (result == "N") {

                                    alert("<%=localize.lblVatInvoice %>\"" + txtVal.substr(0, 2) + "\"<%= localize.IsNotExistsInInvoice%>"); //发票号码 不存在於发票字轨。

                                    if (val == "txt") {

                                        obj.value = '';

                                        obj.focus();

                                    }

}