下拉框联动

SelectBox selectbox1 = new SelectBox("ParentCode", "上级部门", "", "200px");
selectbox1.OnChanged = "javascript:submitgetform();";

html.Append(@"<form id=""getform"" name=""getform"" action=""/common/getorgsyscode.aspx"" method=""get"" target=""HiddenFrame"">");
html.Append(@"<input type=""hidden"" name=""subflag"" value=""0""/>");
html.Append(@"<input type=""hidden"" name=""pcode"" value=""""/>");
html.Append(@"</form>");

//回调表单获取新编码
js.Append(@"function submitgetform(){");
js.Append(@"var getfrm = JsCore.$$(""getform"");");            
js.Append(@"getfrm.pcode.value=JsCore.$$(""ParentCode"").value;");
js.Append(@"getfrm.submit();");
js.Append(@"}");