<tr>
										　　<td class="emBold"><font color="#FF0000">*</font> State:</td>　　<td>
											　　　　<asp:DropDownList ID="ddlState" runat="server" onchange="CheckState()"/>
											　　　　<asp:RequiredFieldValidator ID="rfvState" runat="server" ErrorMessage="The State is required" ControlToValidate="ddlState"/>
										　　</td>
									</tr>

 

javascript隐藏链接 js隐藏节点_父节点

 

 

//ID为"rfvState"的父节点的上一个兄弟节点的第一个子节点,即红色星号*显示

document.getElementById("rfvState").parentElement.previousElementSibling.firstChild.style.visibility = "visible";


javascript隐藏链接 js隐藏节点_Code_02

 

 

//ID为"rfvState"的父节点的上一个兄弟节点的第一个子节点,即红色星号*隐藏
                document.getElementById("rfvState").parentElement.previousElementSibling.firstChild.style.visibility = "hidden"; document.getElementById("rfvState").parentElement.previousElementSibling.firstChild.style.display = "block";
document.getElementById("rfvState").parentElement.previousElementSibling.firstChild.style.display = "inline-block";
//将<font>节点样式全部隐藏，即红色星号*和占位的空白都删除,State会最靠左顶格显示
document.getElementById("rfvState").parentElement.previousElementSibling.firstChild.style.display = "none";

 

 

var St = "";
		function CheckState() {
            St = document.getElementById("ddlState").value;
        }		function CheckCountry() {
			if (document.getElementById("ddlCountry").value == "USA") {
				document.getElementById("ddlState").value = St;
                PackageinfoValidatorsStAndZip(true);
                document.getElementById("rfvState").parentElement.previousElementSibling.firstChild.style.visibility = "visible";
                document.getElementById("rfvZipCode").parentElement.previousElementSibling.firstChild.style.visibility = "visible";
			} else {
                document.getElementById("ddlState").value = "";
                PackageinfoValidatorsStAndZip(false);
                document.getElementById("rfvState").parentElement.previousElementSibling.firstChild.style.visibility = "hidden";
                document.getElementById("rfvZipCode").parentElement.previousElementSibling.firstChild.style.visibility = "hidden";
            }