How to invoke the button click event from usercontrole to in code behind (.cs file)

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This button is user control

ASP.NET

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="user.ascx.cs" Inherits="Linque_Practice.user1" %>
Basheer
<p>
    &nbsp;</p>
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Add" 
    Width="64px" />

    <asp:Button ID="Button2" runat="server" onclick="Button2_Click" Text="Delete" 
    Width="64px" />

In aspx page i have three textbox

XML

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    <br />
second<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
    <br />
    add
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>

i want want when i click the add button its in usercontrole it should add the number from first 2 text and result store in 3rd text box

How to invoke the button click event from usercontrole to in code behind (.cs file)

Posted 13-Jan-13 21:06pm

Basheer Belgod

Updated 13-Jan-13 21:09pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

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deostroll · Answer 1 · 2013-01-13T23:10:00

The framework has a way of wiring this through some convention.

You normally declare a public delegate and define a public event in your user control using that delegate. In the control markup use OnEventName="PageMethod". Where EventName is the name of the event defined in the usercontrol and PageMethod is the method in the aspx page. Trigger the event from user control code-behind.

Say delegate is as follows:

public delegate void ClickHandler();

Event definition inside user control class is as follows:

public event ClickHandler Clicked;

Write code which fires the event. In this case button click:

public void btnSubmit_Click(object s, EventArgs e)
{
if(Clicked != null) Clicked();
}

Finally the markup:

ASP.NET

<cc1:uc1 id="uc1"  runat="server"  önClicked="UcClicked"></cc1:uc1>

Make sure there exists a page a method on the page; it should not be private.

Abhinav S · Answer 2 · 2013-01-13T23:18:00

Solution 2

Code could be as simple as Click(o, null) where o is the object and null the event argument which we may not need in case of firing the event via code behind.

Posted 13-Jan-13 23:18pm

Abhinav S