I'm following the answer here to use the selection from a dropdown in a URL. I am using asp.net core, using:
asp-page="/Page" asp-page-handler="Action"
To do the redirect
The script below (from the link above) works great, except if you select an item from the dropdown then select a different one (and on and on), it appends both to the URL.
<script>
$("[name=selectedAnalyst]").on("change", function () {
var analystId = $(this).val();
var accept = $(this).closest('td').next().find("a")[0];
var oldUrl = accept.href;
var newUrl = oldUrl + "&analystid=" + analystId;
$(accept).attr("href", newUrl);
})
I tried scrubbing the parameter in question (using params.delete) but it's not working:
<script>
$("[name=selectedAnalyst]").on("change", function () {
var analystId = $(this).val();
var accept = $(this).closest('td').next().find("a")[0];
var oldUrl = accept.href;
let params = new URLSearchParams(oldUrl.search);
params.delete('analystid')
var newUrl = oldUrl + "&analystid=" + analystId;
$(accept).attr("href", newUrl);
})
Is there a way to get the above script to work how I envision, or a better way to do this?
Thank you
it seems that
let params = new URLSearchParams(oldUrl.search);
params.delete('analystid')
does not work I tried with the codes and it could work
<script>
$("[name=selectedAnalyst]").on("change", function () {
var analystId = $(this).val();
var accept = $(this).closest('td').next().find("a")[0];
var oldUrl = accept.href;
var a = oldUrl.indexOf("analystid");
console.log(a);
if (a == -1)
{
var newUrl = oldUrl + "&analystid=" + analystId;
}
else
{
var newUrl= oldUrl.substring(0, oldUrl.length - 1) + analystId;
}
console.log(newUrl);
console.log(oldUrl);
$(accept).attr("href", newUrl);
})
</script>
Building on what Ruikai Feng posted I think this is working:
$("[name=selectedAnalyst]").on("change", function () {
var analystId = $(this).val();
var accept = $(this).closest('td').next().find("a")[0];
var oldUrl = accept.href;
var a = oldUrl.indexOf("analystId ");
if (a == -1) {
var newUrl = oldUrl + "&analystId =" + analystId ;
}
else {
var newUrl = oldUrl.substring(0, a - 1) + "&analystId =" + analystId;
}
$(accept).attr("href", newUrl);
})