使用jQuery和javascript在下拉列表中更改选定的值

Question

I have to assign the value in a repeater column in such a way that upon assignment, the value in the repeater column becomes the current selection in the drop down.

I have the correct value to assign in $('#myname_' + rowIndex).text() , but when I assign this value to the id.value of the dropdown - as shown below - the assignment has no effect. What am I doing wrong.

$("ctl00_ContentPlaceHolder1_myname").value = $('#myname_' + rowIndex).text();

Answer 1

jQuery使用val() ，JavaScript（HTML DOM对象）使用value 。

Answer 2

Use:

$("ctl00_ContentPlaceHolder1_myname").val($('#myname_' + rowIndex).text());

Or

 $("ctl00_ContentPlaceHolder1_myname")[0].value = $('#myname_' + rowIndex).text();

Answer 3

Have you tried using the val function instead?

$("#ctl00_ContentPlaceHolder1_myname").val($('#myname_' + rowIndex).text());

The val function can be used to get the value from the object if you use it without parameters

Answer 4

$("ctl00_ContentPlaceHolder1_myname").val($('#myname_' + rowIndex).text())

要么

$("ctl00_ContentPlaceHolder1_myname")[0].value = $('#myname_' + rowIndex).text()