如何在asp下拉列表中使用标头 [英] How to use header in asp dropdownlist

问题描述

asp下拉列表控件应如下所示：



A类

班加罗尔

加尔各答

孟买

B类

德里

海德拉巴

钦奈



这里，不应选择A / B类，只选择我需要选择的值



我想快速帮助PLZ。下拉列表应该是后端动态的（vb.Net）



它可以使用html标签完成，但我希望这可以使用Asp下拉列表控件来完成。

解决方案

本文应该对您有帮助 - 禁用或使ListItem不可选择ASP.Net DropDownList使用jQuery [ ^ ]。它提供了您需要的确切解决方案。

类似的问题也被问到这里 [之前 ^ ]。

< blockquote>

 <   asp：GridView     ID   =  gvCustomers     runat   = < span class =code-keyword> server   宽度  =  550px  
   
   AutoGenerateColumns   =  false  
   
  字体名称  =  Arial < span class =code-attribute>  字体大小  =  11pt    AlternatingRowStyle-BackColor   = ＃C2D69B  
   
   HeaderStyle-BackColor   =  green  
   
   AllowPaging   =  true    ShowFooter   =  true    OnPageIndexChanging   =  OnPaging    PageSize   =  10  >  
 <  列 >  
 <   asp：BoundField     HeaderText   =   CustomerID    DataField   =  CustomerId    FooterText   = 页脚    /  >  
 <   asp：BoundField     HeaderText   = 联系人姓名    DataField   =  ContactName    FooterText   = 页脚    /  >  
 <   asp：BoundField     HeaderText   = 公司名称    DataField   =  CompanyName    FooterText   = 页脚 < span class =code-attribute>   /  >  
 <   / Columns  >  
 <   AlternatingRowStyle     BackColor   = ＃ C2D69B    /  >  
 <   / asp：GridView  > ;  

the asp dropdownlist control should look like :

Category A
Bangalore
Kolkata
Mumbai
Category B
Delhi
Hyderabad
Chennai

here , the "Category A/B" should not be selected, only the values i need to select

I want quick help plz. The dropdownlist should be dynamic from backend (vb.Net)

it can be done using html tags, but i want this to be done using Asp dropdownlist control.

解决方案

This article should help you - Disable or Make a ListItem Non selectable ASP.Net DropDownList Using jQuery[^]. It provides the exact solution you need.
A similar question was also asked here[^] before.

<asp:GridView ID="gvCustomers" runat="server" Width="550px"

AutoGenerateColumns="false"

Font-Names="Arial" Font-Size="11pt" AlternatingRowStyle-BackColor="#C2D69B"

HeaderStyle-BackColor="green"

AllowPaging="true" ShowFooter="true" OnPageIndexChanging="OnPaging" PageSize="10">
<Columns>
    <asp:BoundField HeaderText="CustomerID" DataField="CustomerId" FooterText="Footer" />
    <asp:BoundField HeaderText="Contact Name" DataField="ContactName" FooterText="Footer" />
    <asp:BoundField HeaderText="Company Name" DataField="CompanyName" FooterText="Footer" />
</Columns>
<AlternatingRowStyle BackColor="#C2D69B" />
</asp:GridView>

这篇关于如何在asp下拉列表中使用标头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！