当前位置: 首页 > 图文教程 > 网络编程 > Javascript > javascript实现的listview效果

Javascript
js 方法实现返回多个数据的代码
Ext 表单布局实例代码
javascript document.referrer 用法
JavaScript 字符编码规则
JS 动态加载脚本的4种方法
jQuery textarea的长度进行验证
jQuery select的操作实现代码
jQuery 1.2.x 升級 1.3.x 注意事项
关于viewport,Ext.panel和Ext.form.panel的关系
日期 时间js控件
JavaScript的parseInt 进制问题
javascript 有用的脚本函数
javascript 两个字符串比较函数
javascript 代码运行器
js arguments.callee的应用代码
JavaScript Table排序 2.0 (更新)
给Function做的OOP扩展
<script defer> defer 是什么意思
FF和IE之间7个JavaScript的差异
javascript获取当前ip的代码

Javascript 中的 javascript实现的listview效果


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-09-12   浏览: 312 ::
收藏到网摘: n/a

<style type="text/css">
#oContainer {
width: 600px;
height: 500px;
border: 1px solid menu;
margin: 0px;
padding: 0px;
overflow: hidden;
}
a {
color: black;
text-decoration: none;
}
a:hover {
color: red;
text-decoration: underline;
}
</style>
<script language="javascript">
var oListView = new Object();
function listView(_container) {
this.author = '51JS.COM-ZMM';
this.version = 'ListView 1.0';
this.container = _container;
this.box = new Object();
this.headerWidth = 0;
this.headerHeight = 20;
this.itemWidth = 0;
this.itemHeight = 0;
this.rowsCount = 30;
this.isResize = false;
this.separate = new Object();
this.startPoint = 0;
this.endPoint = 0;
this.tempSeparate = new Object();
this.put_headerHeight = function(_height) { return _height; };
this.get_headerHeight = function() { return this.headerHeight; };
this.put_rowsCount = function(_count) { return _count; };
this.get_rowsCount = function() { return this.rowsCount; };
}
listView.prototype = {
boxInit : function() {
this.container.innerHTML = new String();
this.box = (function(_object) {
var _box = document.createElement('DIV');
with (_box) {
id = 'ListViewBox';
style.width = _object.offsetWidth;
style.height = _object.offsetHeight;
style.margin = '0px';
style.padding = '0px';
attachEvent('oncontextmenu', new Function('return false;'));
}
return _box;
})(this.container);
this.headerPanel = (function(_width, _height) {
var _headerPanel = document.createElement('DIV');
with (_headerPanel) {
style.width = _width;
style.height = _height;
}
return _headerPanel;
})(this.box.style.width, this.headerHeight);
this.headerPanel.appendChild(this.textPanel = (function() {
var _textPanel = document.createElement('NOBR');
_textPanel.attachEvent('onmousemove', function() {
with (oListView) {
if (event.button == 1) {
textPanel.style.cursor = 'E-resize';
tempSeparate.style.left = event.clientX - getPosition(box).left;
tempSeparate.style.display = 'inline';
endPoint = event.clientX;
isResize = true;
}
}
});
return _textPanel;
})());
this.rowItemPanel = (function(_width, _height) {
var _itemPanel = document.createElement('DIV');
with (_itemPanel) {
style.width = _width;
style.height = _height;
style.overflow = 'hidden';
}
return _itemPanel;
})(this.box.style.width, parseInt(this.box.style.height) - this.headerHeight);
this.rowItemPanel.appendChild(this.dataPanel = (function() {
var _dataPanel = document.createElement('NOBR');
with (_dataPanel) {
style.cursor = 'default';
attachEvent('onclick', function() {
document.selection.empty();
});
attachEvent('onselectstart', function() {
document.selection.empty();
});
}
return _dataPanel;
})());
this.dataPanel.appendChild(this.tempSeparate = (function(_height) {
var _tempSeparate = document.createElement('SPAN');
with (_tempSeparate) {
style.width = '1px';
style.height = _height;
style.border = '0px';
style.backgroundColor = 'black';
style.position = 'absolute';
style.display = 'none';
}
return _tempSeparate;
})(this.rowItemPanel.style.height));
this.box.appendChild(this.headerPanel);
this.box.appendChild(this.rowItemPanel);
this.container.appendChild(this.box);
},
drawListView : function(_headers, _aligns) {
this.boxInit();
this.drawHeader(_headers);
this.drawRowItem(_headers, _aligns);
document.attachEvent('onmouseup', this.finishResize);
},
drawHeader : function(_headers) {
this.headers = [];
this.headerWidth = Math.round((parseInt(this.headerPanel.style.width) - (_headers.length - 1) * 1) / _headers.length) + 1;
for (var i = 0; i < _headers.length; i ++) {
var _header = document.createElement('SPAN');
with (_header) {
style.width = this.headerWidth;
style.height = this.headerHeight;
style.overflow = 'hidden';
style.backgroundColor = 'buttonface';
style.borderLeft = '1px solid buttonhighlight';
style.borderTop = '1px solid buttonhighlight';
style.borderRight = '1px solid buttonshadow';
style.borderBottom = '1px solid buttonshadow';
style.textAlign = 'center';
style.fontSize = '12px';
style.fontFamily = 'Sans-Serif, Tahoma';
style.paddingTop = '1px';
innerText = _headers[i];
}
this.textPanel.appendChild(_header);
this.headers[this.headers.length] = _header;
var _separate = this.getSeparate(true);
this.textPanel.appendChild(_separate);
this.headers[this.headers.length] = _separate;
}
var _last = document.createElement('SPAN');
with (_last) {
style.width = this.headerPanel.offsetWidth;
style.height = this.headerHeight;
style.overflow = 'hidden';
style.backgroundColor = 'buttonface';
style.borderLeft = '1px solid buttonhighlight';
style.borderTop = '1px solid buttonhighlight';
style.borderRight = '1px solid buttonshadow';
style.borderBottom = '1px solid buttonshadow';
style.textAlign = 'center';
style.fontSize = '12px';
style.fontFamily = 'Sans-Serif, Tahoma';
style.paddingTop = '1px';
innerText = new String();
}
this.textPanel.appendChild(_last);
this.headers[this.headers.length] = _last;
},
drawRowItem : function(_headers, _aligns) {
this.items = [];
this.itemWidth = Math.round((parseInt(this.rowItemPanel.style.width) - (_headers.length - 1) * 1) / _headers.length) + 1;
this.itemHeight = parseInt(this.rowItemPanel.style.height) - 2;
for (var i = 0; i < _headers.length; i ++) {
var _item = document.createElement('SPAN');
with (_item) {
style.width = this.itemWidth;
style.height = this.itemHeight;
style.overflow = 'hidden';
style.padding = '0px';
appendChild((function(_count, _width, _height, _align) {
var _table = document.createElement('TABLE');
with (_table) {
cellSpacing = 0;
cellPadding = 0;
style.width = _width;
style.tableLayout = 'fixed';
}
var _tbody = document.createElement('TBODY');
for (var i = 0; i < _count; i ++) {
var _tableTr = document.createElement('TR');
var _tableTd = document.createElement('TD');
with (_tableTd) {
align = _align;
style.height = _height;
style.borderBottom = '1px solid #c6c3c6';
style.fontSize = '12px';
style.paddingLeft = '3px';
setAttribute('onclick', function() {
oListView.selectedRow(this.parentNode.rowIndex);
});
setAttribute('ondblclick', function() {
oListView.showSelected(this.parentNode.rowIndex);
});
innerHTML = new String(' ');
}
_tableTr.appendChild(_tableTd);
_tbody.appendChild(_tableTr);
}
_table.appendChild(_tbody);
return _table;
})(this.rowsCount, this.itemWidth, Math.round(this.itemHeight / this.rowsCount), _aligns[i]));
}
this.dataPanel.appendChild(_item);
this.items[this.items.length] = _item;
var _separate = this.getSeparate(false);
_separate.style.height = this.itemHeight;
this.dataPanel.appendChild(_separate);
this.items[this.items.length] = _separate;
}
var _last = document.createElement('SPAN');
with (_last) {
style.width = this.rowItemPanel.offsetWidth;
style.height = this.itemHeight;
style.overflow = 'hidden';
style.padding = '0px';
appendChild((function(_count, _width, _height) {
var _table = document.createElement('TABLE');
with (_table) {
cellSpacing = 0;
cellPadding = 0;
style.width = '100%';
}
var _tbody = document.createElement('TBODY');
for (var i = 0; i < _count; i ++) {
var _tableTr = document.createElement('TR');
var _tableTd = document.createElement('TD');
with (_tableTd) {
style.height = _height;
style.borderBottom = '1px solid menu';
innerHTML = new String('<nobr style="height: ' + eval(_height-1) + ';overflow: hidden;"> </nobr>');
}
_tableTr.appendChild(_tableTd);
_tbody.appendChild(_tableTr);
}
_table.appendChild(_tbody);
return _table;
})(this.rowsCount, this.itemWidth, Math.round(this.itemHeight / this.rowsCount)));
}
this.dataPanel.appendChild(_last);
this.items[this.items.length] = _last;
},
getSeparate : function(_resize) {
var _separate = document.createElement('SPAN');
with (_separate) {
style.width = _resize ? '2px' : '1px' ;
style.height = this.headerHeight;
style.border = '1px ' + (_resize ? 'inset white' : 'solid #c6c3c6');
style.overflow = 'hidden';
style.position = 'absolute';
if (_resize) {
attachEvent('onmousedown', function() {
with (oListView) {
separate = event.srcElement;
startPoint = event.clientX;
}
});
attachEvent('onmouseenter', function() {
event.srcElement.style.cursor = 'E-resize';
});
}
}
return _separate;
},
getPosition : function(_object) {
var _top = _left = 0;
var _root = document.body;
while (_object != _root) {
_left += _object.offsetLeft;
_object = _object.offsetParent;
}
return { left: _left };
},
resizeItem : function() {
with (this) {
var _width, _movePart = endPoint - startPoint;
for (var i = 0; i < headers.length; i ++) {
if (headers[i] == separate) {
var _bool = true;
_bool = _bool && (_movePart < 0);
_bool = _bool && (parseInt(headers[i - 1].style.width) < Math.abs(_movePart));
if (_bool) {
headers[i - 1].style.width = 0;
items[i - 1].style.width = 0;
} else {
_width = parseInt(headers[i - 1].style.width);
headers[i - 1].style.width = _width + _movePart;
_width = parseInt(items[i - 1].style.width);
items[i - 1].style.width = _width + _movePart;
_width = parseInt(items[i - 1].firstChild.style.width);
items[i - 1].firstChild.style.width = _width + _movePart;
var _table = items[i - 1].firstChild;
for (var j = 0; j < _table.rows.length; j ++) {
var _dataPanel = _table.rows[j].cells[0].children[0];
if (typeof _dataPanel != 'undefined') {
_width = parseInt(_dataPanel.style.width);
_dataPanel.style.width = _width + _movePart;
}
}
}
}
}
}
},
finishResize : function() {
with (oListView) {
if (isResize) {
isResize = false;
textPanel.style.cursor = 'default';
tempSeparate.style.display = 'none';
resizeItem();
}
}
},
addListItem : function(_datas) {
var _itemNum = _datas.length > this.rowsCount ? this.rowsCount : _datas.length ;
for (var i = 0; i < _itemNum; i ++) {
var n = 0;
for (j = 0; j < this.items.length - 2; j ++) {
if (j % 2 == 0) {
var _dataPanel = document.createElement('NOBR');
var _tableCell = this.items[j].firstChild.rows[i].cells[0];
with (_dataPanel) {
style.width = this.itemWidth;
style.overflow = 'hidden';
style.textOverflow = 'ellipsis';
innerHTML = _datas[i][n];
}
_tableCell.innerHTML = new String();
_tableCell.appendChild(_dataPanel);
_tableCell.title = _datas[i][0];
n ++;
}
}
}
},
selectedRow : function(n) {
for (var i = 0; i < this.items.length; i++) {
if (i % 2 == 0) {
var _table = this.items[i].firstChild;
for (var j = 0; j < _table.rows.length; j ++) {
var _dataPanel = _table.rows[j].cells[0].children[0];
if (typeof _dataPanel != 'undefined') {
if (j == n) {
_table.rows[j].cells[0].style.color = 'highlighttext';
_table.rows[j].cells[0].style.backgroundColor = 'highlight';
} else {
_table.rows[j].cells[0].style.color = '';
_table.rows[j].cells[0].style.backgroundColor = '';
}
var _children = _table.rows[j].cells[0].firstChild.children;
this.changeChild(_children, j == n);
}
}
}
}
},
changeChild : function(_children, _isSelected) {
if (typeof _children != 'undefined') {
for (var i = 0; i < _children.length; i ++) {
if (_isSelected) {
_children[i].style.color = 'highlighttext';
_children[i].style.backgroundColor = 'highlight';
} else {
_children[i].style.color = '';
_children[i].style.backgroundColor = '';
}
}
} else {
return false;
}
},
showSelected : function(n) {
var _text = new String();
for (var i = 0; i < this.items.length - 2; i++) {
if (i % 2 == 0) {
var _table = this.items[i].firstChild;
_text += this.headers[i].innerText + ':\n';
_text += _table.rows[n].cells[0].firstChild.innerHTML + '\n\n';
}
}
alert(_text);
}
}
function initListView() {
var _headers = [];
_headers[_headers.length] = '标题';
_headers[_headers.length] = '内容';
_headers[_headers.length] = '时间';
_headers[_headers.length] = '管理';
var _aligns = [];
_aligns[_aligns.length] = 'left';
_aligns[_aligns.length] = 'left';
_aligns[_aligns.length] = 'center';
_aligns[_aligns.length] = 'center';
oListView = new listView(self.oContainer);
oListView.drawListView(_headers, _aligns);
var _items = [];
_items[_items.length] = ['标题一', '内容一', '2006-6-21 10:30:00', '<a href="update.aspx">编辑</a> <a href="delete.aspx">删除</a>'];
_items[_items.length] = ['标题二', '内容二', '2006-6-21 14:20:12', '<a href="update.aspx">编辑</a> <a href="delete.aspx">删除</a>'];
_items[_items.length] = ['标题三', '内容三', '2006-6-21 20:45:36', '<a href="update.aspx">编辑</a> <a href="delete.aspx">删除</a>'];
oListView.addListItem(_items);
}
attachEvent('onload', initListView);
</script>
<center>
<div id="oContainer"></div>
</center>