如何从RadioButtonList获取选定的单选按钮对象

Question

如何从SelectedIndexChanged事件中的RadioButtonList获取选定的RadioButton对象

好的更多描述

我需要捕捉radiobuttonlist中选择的radiobutton，以便在radiobuttonlist autopostback

时关注它

Answer 1

试试这个：

protected void rbl_SelectedIndexChanged(object sender, EventArgs e)
    {
        RadioButtonList rbList = (RadioButtonList)sender;
        ListItem selItem = rbList.Items[rbList.SelectedIndex];
        selItem.Selected = true;
    }

Answer 2

void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
{
    var script = string.Format("document.getElementById('{0}_{1}').focus();", RadioButtonList1.ClientID, RadioButtonList1.SelectedIndex);

    if (ScriptManager.GetCurrent(this) != null && ScriptManager.GetCurrent(this).IsInAsyncPostBack)
        ScriptManager.RegisterStartupScript(RadioButtonList1, typeof(RadioButtonList), Guid.NewGuid().ToString(), script, true);
    else
        ClientScript.RegisterStartupScript(typeof(RadioButtonList), Guid.NewGuid().ToString(), script, true);
}