Angular 如何将事件附加到动态添加的HTML元素?
我有一个场景,我从后端获取一个HTML字符串,并使用Angular 如何将事件附加到动态添加的HTML元素?,angular,Angular,我有一个场景,我从后端获取一个HTML字符串,并使用[innerHTML]在HTML上呈现该字符串。我有一个字符串链接: 请单击如果可以通过id或类名获取新DOM元素,则可以使用元素分配事件。addEventListener: this.container.nativeElement.innerHTML = "<a class='mylink'>Click to show message</a>"; let children = document.getElements
[innerHTML]
在HTML上呈现该字符串。我有一个字符串链接:
请单击如果可以通过id或类名获取新DOM元素,则可以使用元素分配事件。addEventListener
:
this.container.nativeElement.innerHTML = "<a class='mylink'>Click to show message</a>";
let children = document.getElementsByClassName("mylink");
for (let i = 0; i < children.length; i++) {
children[i].addEventListener("click", (event: Event) => {
alert("Hello world!");
});
}
this.container.nativeElement.innerHTML=“let str=”;
str+='';
str+='';
str+='- ';
str+='';
str+='';
str+='';
str+='
';
Product.forEach(项目=>{
str+='- ';
str+='';
str+='';
str+='';
str+='';
str+='';
str+='';
str+='';
str+=''+项目名称+'';
str+='';
str+=“
”;
});
str+='- ';
str+='添加新';
str+='
';
str+='
';
str+='';
str+='';
函数-Add()、GetXYZ()、GetABC显示在浏览器的inspect元素中,事件是否不起作用
我附加了ts中的HTML。如何从angular 6动态调用按钮单击事件
ItemDetails(orderId, itemIndex) {
if ($("#accordionNew" + itemIndex).closest("div").html().indexOf("div_" + orderId) == -1) {
this.oRequest = new ORequestParameter();
var retrievedObject = localStorage.getItem('userObject');
let userObject = JSON.parse(retrievedObject) as AdminDashboardModel;
this.oRequest.SellerId = userObject.sellerId;
this.oRequest.OrderStatus = $("#hdnOrderStatus").val().toString();
this.oRequest.OrderId = orderId;
this.oRequest.OrderConfirmationFlag = '0,1,2';
let sProviderId = "0";
if (this.MultiSelectObjTypeSelected != undefined) {
let result2 = this.MultiSelectObjTypeSelected.map(a => a.id);
if (result2.join().length > 0) {
sProviderId = result2.join();
}
}
this.oRequest.ProviderID = sProviderId;
this.orderService.GetItemDetails(this.oRequest).subscribe(
lstOrderItem => {
this.lstOrderItem = lstOrderItem;
var sData = "";
if (this.lstOrderItem.length > 0) {
sData += "<div class='col-4 col-lg-4 col-md-4 col-xs-4 text-left' style='font-weight: bold;' id='div_" + orderId + "'>Product Name</div>";
sData += "<div class='col-4 col-lg-4 col-md-4 col-xs-4 text-center' style='font-weight: bold;'>Price</div>";
sData += "<div class='col-4 col-lg-4 col-md-4 col-xs-4 text-center' style='font-weight: bold;'></div>";
sData += "<div class='clearfix'></div>";
var aTag = document.createElement('a');
for (var i = 0; i < this.lstOrderItem.length; i++) {
sData += "<div style='background-color:#fff;padding:10px 0;'>";
sData += "<div class='col-4 col-sm-4 col-lg-4 col-xs-4 col-md-4'>";
sData += "<span style='text-align: justify;'>" + this.lstOrderItem[i].productName + "</span>"; /*<b style='color:red;' > (" + this.lstOrderItem[i].productType + ") < /b>*/
sData += "</div>";
sData += "<div class='col-4 col-sm-4 col-lg-4 col-xs-4 col-md-4 text-center'>";
sData += "<span><i class='fa fa-inr'></i> " + this.lstOrderItem[i].providerSellingPrice + "</span>";
sData += "</div>";
sData += "<div class='col-4 col-lg-4 col-md-4 col-xs-2 text-center' style='font-weight: bold;'>";
sData += '<a id="btn_' + this.lstOrderItem[i].orderItemID + '" data-oid=' + this.lstOrderItem[i].orderItemID + ' class="mylink btn btn-success" style="width:70px;">Pending</a>';
sData += "</div>";
sData += "</div>";
sData += "<div class='clearfix'></div>";
}
sData += "<div style='background-color:#BFE7FF;padding:15px 0;'>";
sData += "<div class='col-6 col-sm-6 col-lg-6 col-xs-6 col-md-6' style='font-weight: bold'>Total Billed Amount</div>";
sData += "<div class='col-2 col-sm-2 col-lg-2 col-xs-2 col-md-2 pull-right text-right'>";
sData += "<span><b>Price:</b> <i class='fa fa-inr'></i> " + totalAmount + "</span></div>";
sData += "<div class='clearfix'></div>";
sData += "</div>";
}
else {
$("#errorMsg").removeClass("hidden");
$("#errorMsg").addClass("alert-danger");
$("#errorMsg").html("There was no record found");
}
$("#accordionNew" + itemIndex).closest("div").html(sData);
let children = document.getElementsByClassName("mylink");
for (let i = 0; i < children.length; i++) {
children[i].addEventListener("click", (event: Event) => {
this.ConfirmThisOrder(event)
});
}
},
error => this.errorMessage = <any>error
);
}
return false;
}
ConfirmThisOrder(obj) {
var orderItemID = obj.target.dataset.oid;
}
ItemDetails(orderId、itemIndex){
if($(“#accordionNew”+itemIndex).closest(“div”).html().indexOf(“div#”+orderId)=-1){
this.oRequest=新的ORequestParameter();
var retrievedObject=localStorage.getItem('userObject');
让userObject=JSON.parse(retrievedObject)作为AdminDashboardModel;
this.oRequest.SellerId=userObject.SellerId;
this.oRequest.OrderStatus=$(“#hdnOrderStatus”).val().toString();
this.oRequest.OrderId=OrderId;
this.oRequest.OrderConfirmationFlag='0,1,2';
让sProviderId=“0”;
如果(this.MultiSelectObjTypeSelected!=未定义){
让result2=this.MultiSelectObjTypeSelected.map(a=>a.id);
如果(result2.join().length>0){
sProviderId=result2.join();
}
}
this.oRequest.ProviderID=sProviderId;
this.orderService.GetItemDetails(this.oRequest).subscribe(
lstOrderItem=>{
this.lstOrderItem=lstOrderItem;
var sData=“”;
如果(this.lstOrderItem.length>0){
sData+=“产品名称”;
sData+=“价格”;
sData+=”;
sData+=”;
var aTag=document.createElement('a');
for(var i=0;i*/
sData+=”;
sData+=”;
sData+=“”+this.lstOrderItem[i].providerSellingPrice+“”;
sData+=”;
sData+=”;
sData+=‘待定’;
sData+=”;
sData+=”;
sData+=”;
}
sData+=”;
sData+=“账单总金额”;
sData+=”;
sData+=“价格:”+总金额+”;
sData+=”;
sData+=”;
}
否则{
$(“#errorMsg”).removeClass(“隐藏”);
$(“#errorMsg”).addClass(“警报危险”);
$(“#errorMsg”).html(“未找到任何记录”);
}
$(“#accordionNew”+itemIndex).closest(“div”).html(sData);
让children=document.getElementsByClassName(“mylink”);
for(设i=0;i{
this.ConfirmThisOrder(事件)
});
}
},
error=>this.errorMessage=错误
);
}
返回false;
}
确认此订单(obj){
var orderItemID=obj.target.dataset.oid;
}
@ConnonrsFan,是的,这是正确的,但他的示例显示了(单击)
,因此我假设他希望使用角度事件处理程序来处理更改检测。@SonuKapoor-抱歉,在您发布答案之前,我已经删除了我的评论。老实说,我不知道(单击)是如何操作的
事件与更改检测相关。我认为该机制主要用于属性绑定。在上面显示的事件处理程序中所做的更改将由Angular检测。@Sonukapor-以下是更改检测。
ItemDetails(orderId, itemIndex) {
if ($("#accordionNew" + itemIndex).closest("div").html().indexOf("div_" + orderId) == -1) {
this.oRequest = new ORequestParameter();
var retrievedObject = localStorage.getItem('userObject');
let userObject = JSON.parse(retrievedObject) as AdminDashboardModel;
this.oRequest.SellerId = userObject.sellerId;
this.oRequest.OrderStatus = $("#hdnOrderStatus").val().toString();
this.oRequest.OrderId = orderId;
this.oRequest.OrderConfirmationFlag = '0,1,2';
let sProviderId = "0";
if (this.MultiSelectObjTypeSelected != undefined) {
let result2 = this.MultiSelectObjTypeSelected.map(a => a.id);
if (result2.join().length > 0) {
sProviderId = result2.join();
}
}
this.oRequest.ProviderID = sProviderId;
this.orderService.GetItemDetails(this.oRequest).subscribe(
lstOrderItem => {
this.lstOrderItem = lstOrderItem;
var sData = "";
if (this.lstOrderItem.length > 0) {
sData += "<div class='col-4 col-lg-4 col-md-4 col-xs-4 text-left' style='font-weight: bold;' id='div_" + orderId + "'>Product Name</div>";
sData += "<div class='col-4 col-lg-4 col-md-4 col-xs-4 text-center' style='font-weight: bold;'>Price</div>";
sData += "<div class='col-4 col-lg-4 col-md-4 col-xs-4 text-center' style='font-weight: bold;'></div>";
sData += "<div class='clearfix'></div>";
var aTag = document.createElement('a');
for (var i = 0; i < this.lstOrderItem.length; i++) {
sData += "<div style='background-color:#fff;padding:10px 0;'>";
sData += "<div class='col-4 col-sm-4 col-lg-4 col-xs-4 col-md-4'>";
sData += "<span style='text-align: justify;'>" + this.lstOrderItem[i].productName + "</span>"; /*<b style='color:red;' > (" + this.lstOrderItem[i].productType + ") < /b>*/
sData += "</div>";
sData += "<div class='col-4 col-sm-4 col-lg-4 col-xs-4 col-md-4 text-center'>";
sData += "<span><i class='fa fa-inr'></i> " + this.lstOrderItem[i].providerSellingPrice + "</span>";
sData += "</div>";
sData += "<div class='col-4 col-lg-4 col-md-4 col-xs-2 text-center' style='font-weight: bold;'>";
sData += '<a id="btn_' + this.lstOrderItem[i].orderItemID + '" data-oid=' + this.lstOrderItem[i].orderItemID + ' class="mylink btn btn-success" style="width:70px;">Pending</a>';
sData += "</div>";
sData += "</div>";
sData += "<div class='clearfix'></div>";
}
sData += "<div style='background-color:#BFE7FF;padding:15px 0;'>";
sData += "<div class='col-6 col-sm-6 col-lg-6 col-xs-6 col-md-6' style='font-weight: bold'>Total Billed Amount</div>";
sData += "<div class='col-2 col-sm-2 col-lg-2 col-xs-2 col-md-2 pull-right text-right'>";
sData += "<span><b>Price:</b> <i class='fa fa-inr'></i> " + totalAmount + "</span></div>";
sData += "<div class='clearfix'></div>";
sData += "</div>";
}
else {
$("#errorMsg").removeClass("hidden");
$("#errorMsg").addClass("alert-danger");
$("#errorMsg").html("There was no record found");
}
$("#accordionNew" + itemIndex).closest("div").html(sData);
let children = document.getElementsByClassName("mylink");
for (let i = 0; i < children.length; i++) {
children[i].addEventListener("click", (event: Event) => {
this.ConfirmThisOrder(event)
});
}
},
error => this.errorMessage = <any>error
);
}
return false;
}
ConfirmThisOrder(obj) {
var orderItemID = obj.target.dataset.oid;
}