如何在asp..net中给Dropdownlist中的列表项提供tooptip [英] How to give tooptip for a list item in Dropdownlist in asp..net

问题描述

<asp:DropDownList AutoPostBack="true" runat="server" class="text-box-height" ID="ddlDestination" onmouseover="Showtooltip(this)" OnSelectedIndexChanged="ddlDestination_SelectedIndexChanged">
                             <asp:ListItem Value="asdfgh" title="asdfgh">asdfgh</asp:ListItem>
                             <asp:ListItem Value="qwetrtyt" title="qwetrtyt" Selected="True">qwetrtyt</asp:ListItem>
                             <asp:ListItem Value="zxcvb" title="zxcvb">zxcvb</asp:ListItem>
                         </asp:DropDownList>

我的功能是

and my function is

function Showtooltip(ddlSelected) {
          document.getElementById("ddlDestination").title = ddlSelected.value;
      }

在下拉列表框中它没有显示tooltip.why它没有显示？

in the dropdownlist box it is not showing tooltip.why its not showing?

推荐答案

请查看相关链接以获取帮助。



谢谢，



< a href =http://stackoverflow.com/questions/14208907/how-can-i-show-a-tooltip-for-each-option-on-a-dropdown-with-javascript-or-ajax> http ：//stackoverflow.com/questions/14208907/how-can-i-show-a-toololp-for-each-option-on-a-dropdown-with-javascript-or-ajax [ ^ ]



http://stackoverflow.com/questions/2099564/how-to-add-tooltip-to-a-drop-down-combobox [ ^ ]



http://weblogs.asp.net/abdullaabdelhaq/adding-tooltip-for-each-list-item [ ^ ]



http：//forums.asp .net / t / 903935.aspx？如何+ +添加+ a +工具提示+ + + + +下拉列表+ [ ^ ]

PLease see the releated links for your help.

thanks,

http://stackoverflow.com/questions/14208907/how-can-i-show-a-tooltip-for-each-option-on-a-dropdown-with-javascript-or-ajax[^]

http://stackoverflow.com/questions/2099564/how-to-add-tooltip-to-a-drop-down-combobox[^]

http://weblogs.asp.net/abdullaabdelhaq/adding-tooltip-for-each-list-item[^]

http://forums.asp.net/t/903935.aspx?How+to+add+a+tooltip+to+a+dropdownlist+[^]

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