How to add a data-attribute to a dropdown menu with C#

user_453985 0
Viewed 22745

I have a standard dropdown list and am able to databind to the list. 

<asp:DropDownList runat="server" ID="ddlMake" ClientIDMode="Static" DataTextField="Name" DataValueField="URL" AppendDataBoundItems="true">
    <asp:ListItem>Select Make</asp:ListItem>
</asp:DropDownList>

I would like to add a data-attribute to the option like below: 

<asp:ListItem data-siteid="<%# DataBinder.Eval(Container.DataItem, "SiteID") %>">Select Make</asp:ListItem>

I'm obviously getting an error because it doesn't recognize the data-siteid.

The list is databound.

Any tips would be handy

entity-framework asp.net linq c#
4 Answers

I ended up doing this (where ds is the dataset):

for (int row = 0; row <= ds.Tables(0).Rows.Count - 1; row++) {
    ddl.Items(row).Attributes.Add("data-siteid", ds.Tables(0).Rows(row)("SiteID"));
}
user_21202610
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