how to handle event of the controls in web user control

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I created a web user control which contains a dropDownList control.

ddlPatients.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="ddlPatients.ascx.cs" Inherits="Admin_User_control_ddlPatients" %>

<asp:DropDownList ID="ddlCallsByPatient" runat="server" AutoPostBack="True" />



ddlPatients.ascx.cs

if (!Page.IsPostBack)

     BindDropDownLists();

And Drag And Drop it to aspx page.

Now I want to fire OnSelectedIndexChanged event to get the selected value of that dropDownList control in code behind.

Posted 5-Sep-12 21:02pm

Dinesh Ambaliya

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Sangramsingh Pawar · Accepted Answer · 2012-09-05T21:10:00

in your web user control class define event

C#

public event EventHandler SelectionChanged_UserControl;
//use OnSelectionChanged event of dropDownList 

void Selection_Change(Object sender, EventArgs e) 
      {

      SelectionChanged_UserControl(sender,e);

      }

//you will get SelectionChanged_UserControl event where you use web control 
//this event will fire when selection of dropDownList changed

Rickin Kane · Accepted Answer · 2012-09-05T21:27:00

its a simple solution

First in user control create a delegate above Page_Load() method

C#

public delegate void OnSelectedIndexchanged();
public event OnSelectedindexchanged Setactionname;

then in your dropdown selected index change add following line

SQL

if (Setactionname!= null)
                Setactionname();

then go to your ASPX page and

C#

UsercontrolName.Setactionname+= this.Mehtodnameonlocalpage;

create a function in your aspx code behind page and do what u need to do like

C#

private void SetSelectedActor()
    {

}

how to handle event of the controls in web user control

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