[英]SelectedIndexChanged() event of a dropdownlist on a checkbobx checking
I have a checkbox to indicate that communication address is same as the permanent address. 我有一个复选框,表明通讯地址与永久地址相同。 There are 4 dropdownlists -
有4个下拉列表 -
When i check the checkbox, the items of permanent address dropdownlists should be same as that of communication address dropdownlists.How to make it possible? 当我勾选复选框时,永久地址下拉列表的项目应与通信地址下拉列表的项目相同。如何使其成为可能?
My code is 我的代码是
protected void CheckBox2_CheckedChanged(object sender, EventArgs e)
{
DRP_Per_Country2.SelectedIndex = DRP_Comm_Country1.SelectedIndex;
}
But the SelectedIndexChanged(
) Event of DRP_Per_Country2
is not get fired.Is it a wrong method? 但是
DRP_Per_Country2
的SelectedIndexChanged(
)事件没有被触发。这是一个错误的方法吗? If so ,how to work it? 如果是这样,如何工作呢?
First of all, you have to set the 首先,你必须设置
AutoPostBack = true
property for all the DropDownList
. 所有
DropDownList
属性。 If this wont work then call the SelectedIndexChanged
Event manually 如果这不起作用,则手动调用
SelectedIndexChanged
事件
protected void CheckBox2_CheckedChanged(object sender, EventArgs e)
{
DRP_Per_Country2.SelectedIndex = DRP_Comm_Country1.SelectedIndex;
DRP_Per_Country2_SelectedIndexChanged(sender,e);
}
This will surely fire the event. 这肯定会引发这场比赛。
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