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Generally speaking, the DropDownList server events of KT.UI for ASP.NET AJAX occur and start to respond to server events fired by complex operations, which cannot be performed by invoking client side events. These events allow users to implement server ide codes on DropDownList control within web ASP.NET application. KT.UI Web ASP.NET DropDownList components supports following three server side events:
Please note that: the SelectedIndexChanged event and ItemSelected event can be fired only when users set the AutoPostBack property as True.
In following texts, users can get the composite ASP.NET and C# sample codes for setting these three DropDownList server side events.
How to Set DropDownList Server Events
Example ASPX and C# codes below are used to demonstrate how to set the supported three DropDownList server events within Web ASP.NET project by using KT.UI DropDownList control for ASP.NET AJAX.
ASPX Codes for DropDownList Server Events
Please refer following ASPX demo codes to set the supportable three DropDownList server events within web ASP.NET developing application.
C# Demo Codes for Configuring DropDownList Server Events
Sample C# codes are for setting and customizing the supportable three DropDownList server events within web C# ASP.NET programming project.
Find Other Related Online Tutorials
This page mainly focuses on DropDownList server side events and how to set these three events by using KT.UI for ASP.NET DropDownList Controls within ASP.NET project, for further operations on DropDownList component client side events and server side templates, users can get more guides via following recommended tutorials.
ASP.NET AJAX UI Controls