/// <summary>
/// Gets the filter value control.
/// </summary>
/// <param name="configurationValues">The configuration values.</param>
/// <param name="id">The identifier.</param>
/// <param name="required">if set to <c>true</c> [required].</param>
/// <param name="filterMode">The filter mode.</param>
/// <returns></returns>
public override Control FilterValueControl(Dictionary <string, ConfigurationValue> configurationValues, string id, bool required, FilterMode filterMode)
{
var ddlList = new RockDropDownList();
ddlList.ID = string.Format("{0}_ddlList", id);
ddlList.AddCssClass("js-filter-control");
if (!required)
{
ddlList.Items.Add(new ListItem());
}
if (ListSource.Any())
{
foreach (var item in ListSource)
{
ListItem listItem = new ListItem(item.Value, item.Key);
ddlList.Items.Add(listItem);
}
return(ddlList);
}
return(null);
}