problem with selecting multiple options in ASP.NET dropdown menu

I'm having trouble implementing a multiple select dropdown in my asp.net project. I keep getting errors when trying to use the multiple field.

Any suggestions on how to resolve this issue?

I have been attempting to utilize the bootstrap multi select plugin.

https://i.sstatic.net/iOnh2.png

<select  id="Select1" multiple="multiple" runat="server">    
    <option value="Text for Item 1" selected="selected"> Item 1 </option>
    <option value="Text for Item 2"> Item 2 </option>
    <option value="Text for Item 3"> Item 3 </option>
    <option value="Text for Item 4"> Item 4 </option>
</select>
javascriptjqueryhtmlcssasp.net

Answer №1

To make a selection with multiple choices, simply include the keyword multiple within your tag.

<select  id="Selection1" runat="server" multiple>

Refer to this website for more information.

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