更改下拉列表的索引时，SelectedIndexChanged不会触发 [英] SelectedIndexChanged does not fire when change index of dropdownlist

问题描述

我的代码是

My code is

    <asp:DropDownList runat="server" ID="ddlFPS" AutoPostBack="true"  CssClass="form-control input-sm" 

                            OnSelectedIndexChanged="ddlFPS_SelectedIndexChanged"

                         ></asp:DropDownList>
<br />
<asp:LinkButton OnClick="lnkSearchNow_Click" ID="lnkSearchNow" runat="server"  

                        >
                             
                            </asp:LinkButton>

in c＃

in c#

    protected void lnkSearchNow_Click(object sender, EventArgs e)
    {
        ddlFPS.SelectedIndex = 10;
}

当我手动更改事件火灾时。

but when i change manually event fires.

推荐答案

你可以调用selectedIndexChanged事件明确地点击按钮点击

You can call the selectedIndexChanged event explicitly on button click like

protected void lnkSearchNow_Click(object sender, EventArgs e)
    {
        ddlFPS.SelectedIndex = 10;
        ddlFPS_SelectedIndexChanged(null,null);        
}

这篇关于更改下拉列表的索引时，SelectedIndexChanged不会触发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！