How to use dynamically created button event to redirect to another ASP.NET page?

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I’m trying to call the event the buttons that were created dynamically with a foreach

public void adicionarComanda()
{
    List<Comanda> lc = ControllerComanda.getComanda();

    foreach (Comanda comanda in lc)
    {
        Button bt = new Button();
        bt.Text = comanda.nome_Pessoa;
        bt.CssClass = "botoes";
        bt.Click += btnNome1_Click;
        bt.CommandArgument = comanda.nome_Pessoa;              

        HtmlGenericControl li = new HtmlGenericControl("li");
        li.Controls.Add(bt);
        ulBotoes.Controls.Add(li);
    }

}

And the event:

protected void btnNome1_Click(object sender, EventArgs e)
{
    string nomePessoa = (sender as Button).CommandArgument;
    Session["currentUser"] = nomePessoa.ToString();
    Response.Redirect("~/Mobile/Pages/produtosCategoria.aspx");
}

How could I solve this problem and make the event work and I be redirected to the desired page? Thank you all so much!

c# asp.net webforms

  • Your system runs on the right Webforms ?

  • Yes Érik, it’s in webforms

  • 1

    Your code is correct, I just copied it, and managed to make it work correctly. In which event is calling the method adicionarComanda? It may be that a postback is occurring between creating your controls and clicking, causing them to miss the event. If you can, post the code that calls the method that creates the controls.

  • Hey, Marcus, what’s up? So, I use this button here to add a command to the database: protected void btnAdd_Click(Object Sender, Imageclickeventargs and) ' ConnectionComanda(name); txtName.Text = """; txtNome.Focus(); } protected void Page_load(Object Sender, Eventargs and) { addirComanda(); } And then on the Load page I call that add method command. But after I insert it, I have to re-load the page to show the buttons that were created.How would I insert and already appear?

  • Opa Marcus, I solved the problem! Just put a Reponse.Redirect() in the insert method commands to the current page, hence the buttons are generated! But thank you very much!

  • 1

    Put the solution here as an answer, it can help other people!

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1 answer

1

Events are called after Page_load, so the solution was in the event of adding the buttons put a Response.Redirect() to the same page in the event that adds the dynamic buttons.

protected void btnAdd_Click(object sender, ImageClickEventArgs e)
    {
        string nome = txtNome.Text.Trim();

        ControllerComanda.inserirComanda(nome);

        txtNome.Text = "";
        txtNome.Focus();

        Response.Redirect("~/Mobile/Pages/paginaComandas.aspx");
    }

Calling the same page after insertion will cause the page load to occur again and after that create the buttons.

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