Phiên bản đầy đủ: jsB@nk » Biểu mẫu » Trình đơn xổ dọc » Hộp chọn các item
URL: https://www.javascriptbank.com/selection-box.html
Hiệu ứng sẽ kiểm tra">kiểm tra và hiển thị các item do người dùng chọn trong các listbox.
Phiên bản đầy đủ: jsB@nk » Biểu mẫu » Trình đơn xổ dọc » Hộp chọn các item
URL: https://www.javascriptbank.com/selection-box.html
<SCRIPT LANGUAGE="JavaScript">// Kathi O'Shea (Kathi.O'Shea@internet.com)<!-- Beginfunction moveOver() {var boxLength = document.choiceForm.choiceBox.length;var selectedItem = document.choiceForm.available.selectedIndex;var selectedText = document.choiceForm.available.options[selectedItem].text;var selectedValue = document.choiceForm.available.options[selectedItem].value;var i;var isNew = true;if (boxLength != 0) {for (i = 0; i < boxLength; i++) {thisitem = document.choiceForm.choiceBox.options[i].text;if (thisitem == selectedText) {isNew = false;break; } }} if (isNew) {newoption = new Option(selectedText, selectedValue, false, false);document.choiceForm.choiceBox.options[boxLength] = newoption;}document.choiceForm.available.selectedIndex=-1;}function removeMe() {var boxLength = document.choiceForm.choiceBox.length;arrSelected = new Array();var count = 0;for (i = 0; i < boxLength; i++) {if (document.choiceForm.choiceBox.options[i].selected) {arrSelected[count] = document.choiceForm.choiceBox.options[i].value;}count++;}var x;for (i = 0; i < boxLength; i++) {for (x = 0; x < arrSelected.length; x++) {if (document.choiceForm.choiceBox.options[i].value == arrSelected[x]) {document.choiceForm.choiceBox.options[i] = null; }}boxLength = document.choiceForm.choiceBox.length; }}function saveMe() {var strValues = "";var boxLength = document.choiceForm.choiceBox.length;var count = 0;if (boxLength != 0) {for (i = 0; i < boxLength; i++) {if (count == 0) {strValues = document.choiceForm.choiceBox.options[i].value;}else {strValues = strValues + "," + document.choiceForm.choiceBox.options[i].value;}count++; }}if (strValues.length == 0) {alert("You have not made any selections");}else {alert("Here are the values you've selected:\r\n" + strValues); }}// End --></script><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com--><form name="choiceForm"><table border=0><tr><td valign="top" width=175>Available Content:<br><select name="available" size=10 onchange="moveOver();"><option value=1>Company News<option value=2>Industry News<option value=3>Product Updates<option value=4>Product Specifications<option value=5>Order History<option value=6>Order Status<option value=7>Contacts<option value=8>Calendar of Events<option value=9>Scheduler<option value=10>Notes</select></td><td valign="top">Your Choices:<br><select multiple name="choiceBox" style="width:150;" size="10"></select></td></tr><tr><td colspan=2 height=10><input type="button" value="Remove" onclick="removeMe();"><input type="button" value="Get Selected Values" onclick="saveMe();"></td></tr></table></form><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->