Asp.net 如何以编程方式添加按钮，并在单击按钮时调用其事件处理程序？

我想以编程方式创建一个按钮，当我单击该按钮时，我想调用它的事件处理程序……这是我的代码……我做错了什么

protected void DashboardDropDownList_SelectedIndexChanged(object sender, EventArgs e)
{

    Button objbutton = new Button();
    objbutton.ID = "objbutton";
    objbutton.Text = "Hello";
    form1.Controls.Add(objbutton);
    Page.Controls.Add(form1);
    objbutton.Click += new System.EventHandler(objbutton_Click);


}
protected void objbutton_Click(object sender, EventArgs e)
{
    Response.Write("Hello World");
}

如果我单击“对象按钮”，则会触发“仪表板下拉列表”\u SelectedIndexChanged事件，而不是单击“对象按钮”

这样使用

protected void DashboardDropDownList_SelectedIndexChanged(object sender, EventArgs e)
{

    Button objbutton = new Button();
    objbutton.ID = "objbutton";
    objbutton.Click += new System.EventHandler(objbutton_Click);
    objbutton.Text = "Hello";
    form1.Controls.Add(objbutton);


}
protected void objbutton_Click(object sender, EventArgs e)
{
    Response.Write("Hello World");
}

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尝试将DropDownEdit的AutoPostback属性设置为true