使用javascript在下拉值选择中出现问题 [英] issue in dropdown value selection using javascript

问题描述

我有一个下拉菜单，其价值在前面说：



1

10

2

20

3

30
4

40

5

50



然后我实际上在我的页面中进行编辑，所以当一个人点击编辑它应该显示在下拉列表中选择的值，所以我首先绑定下拉列表中的所有值，然后使用这样的jquery行：

Hi,

I am having a dropdown and values in it are say for ex:

1
10
2
20
3
30
4
40
5
50

then i am actually doing edit in my page so whenevr a person clicks on edit it should show the value that was selected in dropdown so for that i am first binding all values in dropdown and then using a jquery line like this:

$("#tbl_ddlcolumnname option:contains("+editColDR+")").attr("selected","selected");

其中tbl_ddlcolumnnam是下拉列表ID和需要选择的值我在变量editColDR中得到它但是.....



主要问题是假设5被选中，并且在此行执​​行后的编辑期间，它显示50为选中或...如果我在编辑期间选择1 ...则显示为10。 ....



为什么会出现这个问题？ :)请帮助!!!



提前感谢你！

where tbl_ddlcolumnnam is dropdown id and that value that needs to be selected i am getting it in the variable editColDR but .....

the main issue is suppose 5 was selected and during edit after this line executes it shows 50 as selected or... if i had selected 1 ... during edit it shows as 10.....

Why is this problem arising? :) please help!!!

thanking u in advance!!

推荐答案

（＃tbl_ddlcolumnname选项：contains（+ editColDR +））。attr（selected，selected）;

("#tbl_ddlcolumnname option:contains("+editColDR+")").attr("selected","selected");

其中tbl_ddlcolumnnam是下拉列表id和那个需要选择的值我在变量editColDR中得到它但.......



主要问题是假设5被选中并且在编辑期间在此行执行后，它显示50为选中或...如果我选择1 ...在编辑期间它显示为10 .....



为什么是出现这个问题？ :)请帮助!!!



提前感谢你!!

where tbl_ddlcolumnnam is dropdown id and that value that needs to be selected i am getting it in the variable editColDR but .....

the main issue is suppose 5 was selected and during edit after this line executes it shows 50 as selected or... if i had selected 1 ... during edit it shows as 10.....

Why is this problem arising? :) please help!!!

thanking u in advance!!

尝试使用值属性，其中 editColDR 将是您的下拉列表的值。



和然后使用这个javascript

Try to bind dropdown with Value property, where editColDR would be value of your dropdown.

and then use this javascript

（ ' ＃tbl_ddlcolumnname'）。val（editColDR）

('#tbl_ddlcolumnname').val(editColDR)

这篇关于使用javascript在下拉值选择中出现问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！