Bootstrap checkbox-inline and radio-inline with ASP.NET CheckBoxList and RadioButtonList controls

Update: This applies to Bootstrap 3. See update at end for Bootstrap 4.

Although you can easily create inline checkboxes and radio buttons using ASP.NET CheckBoxes and RadioButtons using Bootstrap's checkbox-inline and radio-inline classes, it's not so easy with ASP.NET CheckBoxList and RadioButtonList controls.

There's probably several ways of emulating the Bootstrap inline styling using these ASP.NET controls, this is how I have been doing it.

Additional CSS classes:

.checkboxlist-inline li, .radiobuttonlist-inline li
{
	display:inline-block;
}

.checkboxlist-inline, .radiobuttonlist-inline
{
	margin-left: 20px;
}

.checkboxlist-inline label, .radiobuttonlist-inline label
{
	padding-left:0;
	padding-right:30px;
}

Then your ASP.NET controls will need some CSS classes applied, and some special attributes:

<asp:CheckBoxList ID="CheckBoxList1" runat="server" CssClass="list-unstyled checkbox checkboxlist-inline" RepeatDirection="Vertical" RepeatLayout="UnorderedList"></asp:CheckBoxList>

<asp:RadioButtonList ID="RadioButtonList1" runat="server" CssClass="list-unstyled radio radiobuttonlist-inline" RepeatDirection="Vertical" RepeatLayout="UnorderedList"></asp:RadioButtonList>

As you can see, I use the UnorderdedList layout and then change the styling of the LI elements to inline-blocks. By using the Bootstrap checkbox/radio classes combined with the list-unstyled we get a result very similar to the native Bootstrap styling.

Update for Bootstrap 4:

Here are the CSS changes for Bootstrap 4.x.

.checkboxlist-inline li, .radiobuttonlist-inline li
{
	display: inline-flex;
			
	align-items: center;
	padding-left: 0;
	margin-right: .75rem;

	position: relative;
}

.checkboxlist-inline li input, .radiobuttonlist-inline li input
{
	position: static;
	margin-top: 0;
	margin-right: .3125rem;
	margin-left: 0;
}

.checkboxlist-inline li label, .radiobuttonlist-inline li label {
	margin-bottom: 0;
}

And here is how your RadioButtonList should be marked up:

<asp:RadioButtonList ID="RadioButtonList1" runat="server" CssClass="list-unstyled radiobuttonlist-inline" RepeatLayout="UnorderedList"></asp:RadioButtonList>