页面<input id="aa" runat="server" type="text" />为空

Question

StringBuilder ScriptStr = new StringBuilder();

    ScriptStr.Append("<script language='JavaScript' >\n");
    ScriptStr.Append("function getProIDList()\n");
    ScriptStr.Append("{\n");
    ScriptStr.Append("var proList='';\n");
    ScriptStr.Append("if(document.forms[0].proID!=null)\n");
    ScriptStr.Append("{\n");
    ScriptStr.Append("if(document.forms[0].proID.length==null)\n");
    ScriptStr.Append("{\n");
    ScriptStr.Append("if(document.forms[0].proID.checked)\n");
    ScriptStr.Append("proList=document.forms[0].proID.value;\n");
    ScriptStr.Append("}\n");
    ScriptStr.Append("else\n");
    ScriptStr.Append("{\n");
    ScriptStr.Append("for(var I=0;I<document.forms[0].proID.length;I++)\n");
    ScriptStr.Append("{\n");
    ScriptStr.Append("if(document.forms[0].proID[I].checked)\n");
    ScriptStr.Append("document.forms[0].aa.value=proList+document.forms[0].proID[I].value+',';\n");
    ScriptStr.Append("}\n");
   

    ScriptStr.Append("}\n");
    ScriptStr.Append("}\n");
    ScriptStr.Append("</script>\n");

Answer 1

提交页面值显示还是没有值