如何为下拉框编写客户端验证 [英] how to write client side validation for drop down boxes
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问题描述
如何在下拉框中编写客户端验证我试过这样但不工作
how to write client side validation on drop down boxes i tried like this but not working
function validateInsert(e)
{
var error = true;
var lblStatuVar = $("#lblStatus");
lblStatuVar.css("color", "Red");
var groupname = document.getElementById('<%=txtGroupName.ClientID %>').value;
var dropdown1= document.getElementById('<%=ddldropdown1.ClientID %>').value;
var dropdown2= document.getElementById('<%=ddldropdown2.ClientID %>').value;
if ($("#txtRequestDate")[0].value == "")
{
lblStatuVar.text("Enter request date");
error = false;
}
if (groupname == "") {
lblStatuVar.text("Enter Group Name");
error = false;
}
if (dropdown1 == "--Select--" || dropdown2 == "--Select--")
{
lblStatus.Text = ("Please select atleast two Medical Cov codes");
result = false;
}
推荐答案
( #lblStatus跨度>);
lblStatuVar.css( color, 红色);
var groupname = document.getElementById(' <%= txtGroupName.ClientID%>')。 value ;
var dropdown1 = document.getElementById(' <%= ddldropdown1.ClientID%>')。 value ;
var dropdown2 = document.getElementById(' <%= ddldropdown2.ClientID%>')。 value ;
if (
("#lblStatus"); lblStatuVar.css("color", "Red"); var groupname = document.getElementById('<%=txtGroupName.ClientID %>').value; var dropdown1= document.getElementById('<%=ddldropdown1.ClientID %>').value; var dropdown2= document.getElementById('<%=ddldropdown2.ClientID %>').value; if (
( #txtRequestDate)[ 0 ]。 value == )
{
lblStatuVar.text( 输入请求日期);
error = false ;
}
如果(groupname == ){
lblStatuVar.text( 输入组名);
error = false ;
}
如果(dropdown1 == - 选择 - || dropdown2 == - 选择 - )
{
lblStatus.Text =( 请选择至少两个医疗Cov代码跨度>);
result = false ;
}
("#txtRequestDate")[0].value == "") { lblStatuVar.text("Enter request date"); error = false; } if (groupname == "") { lblStatuVar.text("Enter Group Name"); error = false; } if (dropdown1 == "--Select--" || dropdown2 == "--Select--") { lblStatus.Text = ("Please select atleast two Medical Cov codes"); result = false; }
功能验证(){
function validations() {
var ddlproduct1 = document.getElementById('<%=ddlproducttype1.ClientID%>');
var ddlproductype1 = ddlproduct1.options[ddlproduct1.selectedIndex].value;
if (ddlproductype1 == 0) {
document.getElementById('<%=ddlproducttype1.ClientID %>').className = 'styletxtmandatory';
// alert("Select Product Type.");
return false;
}
试试这个......
Try this ...
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