[請益] 請問ASP.NET Autopost的問題
我將checkboxlist、radiobuttonlist、dropdownlist、listbox使用AutopostBack屬性，
變換選取項目後將文字顯現在literal上，但dropdownlist跟listbox沒有將文字顯示在
literal上，但若將該兩項用button點選便有顯示在literal上，想請教大大這是什麼緣故
我是用Visual studio 2005編譯的
protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
{
this.Literal1.Text = this.CheckBoxList1.Text;
}→literal有顯示出來
protected void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
{
this.Literal1.Text = this.RadioButtonList1.Text;
}→literal有顯示出來
protected void Button1_Click(object sender, EventArgs e)
{
this.Literal1.Text = this.DropDownList1.SelectedValue;
}→literal有顯示出來
protected void Button2_Click(object sender, EventArgs e)
{
this.Literal1.Text = this.ListBox1.Text;
}→literal有顯示出來
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
this.Literal1.Text = this.DropDownList1.Text;
}→literal無顯示
protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
{
this.Literal1.Text = this.ListBox1.SelectedValue;
}→literal無顯示
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