dynamic button not fire event in the page

Question

0.00/5 (No votes)

See more:

dynamic button not fire event in the page

problem : save button not fired ... how i could solve the problem.

Here's the behind code

C#

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }

    protected void Page_PreRender(object sender, EventArgs e)
    {
        if (IsPostBack)
        {
            btnCreate_Click(sender, e);
            
        }
    }
    
    protected void btnCreate_Click(object sender, EventArgs e)
    {
        DivTextBoxCreator.Controls.Clear();
        HtmlTable htable = new HtmlTable();
        htable.BgColor = "Yellow";
        for (int i = 1; i <= int.Parse(TextBox1.Text); i++)
        {
            HtmlTableRow hRow = new HtmlTableRow();
            HtmlTableCell hCell = new HtmlTableCell();
            TextBox txtGenerator = new TextBox();

            txtGenerator.Text = "TextBox : " + i;
            hCell.Controls.Add(txtGenerator);
            hRow.Controls.Add(hCell);
            htable.Controls.Add(hRow);
        }
        DivTextBoxCreator.Controls.Add(htable);

        // create a Save Button
        Button buttonSave = new Button();
        buttonSave.ID = "buttonSave";
        buttonSave.Text = "Save";
        buttonSave. önClientClick = "return validate()";
        buttonSave.Click += new EventHandler(buttonSave_Click);
        buttonSave_Click(sender, e);
        DivTextBoxCreator.Controls.Add(buttonSave);
    }

    protected void buttonSave_Click(object sender, EventArgs e)
    {
        Response.Write("Test");
    }
}

Here's the tags

C#

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
    
        <table>
            <tr>
                <td>
                    Enter Number of TextBox</td>
                <td>
                    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                     </td>
                <td style="margin-removed 40px">
                    <asp:Button ID="btnCreate" runat="server" Text="Create" Width="139px" 
                        onclick="btnCreate_Click" />
                </td>
            </tr>
            <tr>
                <td>
                     </td>
                <td style="margin-removed 40px">
                     </td>
            </tr>
            <tr>
                <td>
                     </td>
                <td style="margin-removed 40px">
           
                        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
                    <ContentTemplate>
                      <div id="DivTextBoxCreator"  runat="server">

                    </div>
                    </ContentTemplate>
                    
                    </asp:UpdatePanel>
                 </td>
            </tr>
            <tr>
                <td>
                     </td>
                <td style="margin-removed 40px">
                   <asp:UpdatePanel ID="UpdatePanel2" runat="server">
                    <ContentTemplate>
                      <div id="DivButtonCreator"  runat="server">

                          

                    </div>
                    </ContentTemplate>
                   
                    </asp:UpdatePanel>
                </td>
            </tr>
            <tr>
                <td>
                     </td>
                <td style="margin-removed 40px">
                     </td>
            </tr>
        </table>
    
    </div>
    </form>
</body>
</html>

Posted 22-May-13 23:42pm

Honeyboy_20

Add a Solution

2 solutions

Solution 2

may be the problem is your trying to hook a handler to a button in prerender(before rendering of page)
try to hook the events under post render events.

may be this sorts out ur problem.

Posted 23-May-13 1:02am

sameer8k

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

JeremH · Accepted Answer · 2013-05-23T00:02:00

Solution 1

Hi,

when you create the button in event the asp does not load your new button then you must refresh your asp page or you create your button in the load.

see this example Dynamically Created Controls in ASP.NET[^]

good luck

Posted 23-May-13 0:02am

JeremH

Comments

Honeyboy_20 23-May-13 8:08am

Could you correct my code ... coz i have some conflicts in your code.

JeremH 24-May-13 5:36am

you can not to that your button is not create and you rise event it is impossible you can rise event in function the page lifecycle.