在用户自定义控件中，如何加入<asp:textbox runat=server><asp:dropdownlist>之类的控件显示出来!!！急！！！

Question

<asp:textbox runat=server><asp:dropdownlist>应该没有这种控件吧？

Answer 1

hehe, come on, you should override CreateChildControls and doDropDownList ddl = new DropDownList();
Controls.Add(ddl);by the way, it is very bad to output html this way, you should be using a usercontrol instead of a custom control

Answer 2

我也考虑过重载CreateChildControls 方法，可是这样布局不是很好控制！！！如果用CreateChildControls ，请问如何控制！！

Answer 3

you really shouldn't put that much html in your code, but if you insist, try
namespace ViewControl
{
[DefaultProperty("Text"),
ToolboxData("<{0}:SaiChen runat=server></{0}:SaiChen>")]
public class SaiChen: System.Web.UI.WebControls.WebControl
{ private string teamContry;
                  TextBox tb = new TextBox();                  
                  DropDownList ddl = new DropDownList(); [Bindable(true),
Category("Appearance"),
DefaultValue("")]
public string TeamContry
{
get
{
return teamContry;
} set
{
teamContry = value;
}
}                  proteced override void CreateChildControls()
                  {
                              Controls.Add(tb);
                              Controls.Add(ddl);
                  }
protected override void Render(HtmlTextWriter output)
{
                       base.Render(output);
                       .....                       //or btn.RenderControl(output);
                       // ddl.RenderControl(output);