asp.net Button.Click事件未触发

Question

I am having an ASP.WebSite in which I have added some form controls dynamically on aspx.cs using

form1.Controls.Add( " Object of Control ");

Also a have already added a button on form in aspx file using

<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Add" UseSubmitBehavior="false" />

now when I run the program it converts the Button1 into an HTML submit button as below

<input type="button" name="Button1" value="Add" onclick="javascript:__doPostBack('Button1','')" id="Button1" />

and the form tag becomes

<form name="form1" method="post" action="Add1.aspx" id="form1" enctype="multipart/form-data">

when I click the Button1 it submits the form instead of calling the function on Code Behind.

How am I able to call the method Button1_Click specified on OnClick event of Button1?

Please Help.

Answer 1

Have you implemented a click-event handler in codebehind?

protected void Button1_Click(Object sender, EventArgs e)
{
    Button btn = (Button)sender;
}

Button.Click Event

I don't know how this question is related to your dynamic control question since Button1 is added declaratively.

Answer 2

I shoud have added the button control dynamically as follow:

    b1.ID = "EDIT";
    b1.Text = "Add";
    b1.Click +=new System.EventHandler(this.Button1_Click);
    b1.Style["Position"] = "Absolute";
    b1.Style["Top"] = "10px";
    b1.Style["Left"] = "20px";
    form1.Controls.Add(b1);

It is now calling the function Button1_Click on the click event of Button1. I this case I have to create the function Button1_Click manually ie not just double clicking on the design page.

Answer 3

the controls you are adding dynamically, you have to add it on page load.

Then it will work fine.