DropDownList SelectedIndexChanged事件不会重新签名 [英] DropDownList SelectedIndexChanged event not resign

问题描述

嗨..我正在使用DropDownList它有一些ListItem但是我在文本中重新签名事件Changed或SelectedIndexChanged事件它没有驻留我做了什么mi stack这是我的代码：UI

 <   asp：DropDownList     ID   =  CallStatus    CssClass   =  droptownBox    runat   = 服务器 >  
 <   asp：ListItem  > 打开<   / asp：ListItem  >  
 <   asp：ListItem  > 采取的行动<   / asp：ListItem  >  
 <   asp：ListItem   > 已修复<   / asp：ListItem  >  
 <   asp：ListItem  > 已关闭<   / asp：ListItem  >  
 <   asp：ListItem  > 重新打开<   / asp：ListItem  >  
 <   asp：ListItem  > 拒绝<   / asp：ListItem  >  
 <   asp：ListItem  > 待定 - 移出请求<   / asp：ListItem  >  
 <   / asp：DropDownList  >  

 受保护的  Sub  CallStatus_SelectedIndexChanged（ ByVal  sender 作为 对象， ByVal  e  As  EventArgs）句柄 CallStatus.SelectedIndexChanged 
 如果 CallStatus.Text =  已关闭 然后 
 PanelSoluationView.Visible =  False  
 Submit.Text =  已关闭 
 结束 如果 
 结束  Sub  

解决方案

< blockquote>将 AutoPostBack 属性设置为 true 否则 SelectedIndexChanged 事件不会触发。

Hi.. i am using DropDownList it's have some ListItem But i am resign the event in text Changed or SelectedIndexChanged event it not resided what i done mi stack this is my code:UI

<asp:DropDownList ID="CallStatus" CssClass="droptownBox" runat="server">
                           <asp:ListItem>Open</asp:ListItem>
                           <asp:ListItem>Action Taken</asp:ListItem>
                           <asp:ListItem>Fixed</asp:ListItem>
                           <asp:ListItem>Closed</asp:ListItem>
                           <asp:ListItem>Reopen</asp:ListItem>
                           <asp:ListItem>Reject</asp:ListItem>
                           <asp:ListItem>Pending-Move Out Request</asp:ListItem>
                       </asp:DropDownList>

Protected Sub CallStatus_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Handles CallStatus.SelectedIndexChanged
        If CallStatus.Text = "Closed" Then
            PanelSoluationView.Visible = False
            Submit.Text = "Closed"
        End If
    End Sub

解决方案

Set AutoPostBack property to true otherwise SelectedIndexChanged event wont fire.

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