Developer's DescriptionBy Net SolutionsSubstitute outdated standard DropDownList.Web Combobox is an ASP.NET Web custom control to be used in substitution of the less advanced standard DropDownList. It includes a wide range of features, among which load on demand, multiple columns, predefined layouts, that make it irreplaceable with traditional native controls. The possibility to load on demand the list of the displayed items makes it particularly useful in every case where the dimension of the data sources is equal to hundreds or thousands records, when the download in a unique solution would cause unacceptable waiting times, especially in presence of slow links.