此扩展方法是在官网提供的表格编辑单元格功能上进行进一步的功能扩展，
加入了键盘快捷键的操作
- 没启动编辑的时候，按下键盘上下键可以切换选中的行
- 单击单元格启动编辑单元格，
按下键盘↑键，可编辑的单元格变为当前单元格上方的单元格
按下键盘↓键，可编辑的单元格变为当前单元格下方的单元格
按下键盘Tab键，可编辑的单元格变为当前单元格右侧的单元格
按下键盘Shift键，可编辑的单元格变为当前单元格右侧的单元格
按下键盘Enter键，结束编辑，重新出发上下键选择列的功能
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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<script type="text/javascript" src="easyui/jquery.min.js"></script>
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<script type="text/javascript">
//创建数据表格的假数据data
var data = [
{
productid: "FI-SW-01",
productname: "Koi",
unitcost: "10",
status: "P",
listprice: "36.5",
attr1: "Large",
itemid: "EST-1"
},
{
productid: "FI-SW-01",
productname: "Koi",
unitcost: "10",
status: "P",
listprice: "36.5",
attr1: "Large",
itemid: "EST-1"
},
{
productid: "FI-SW-01",
productname: "Koi",
unitcost: "10",
status: "P",
listprice: "36.5",
attr1: "Large",
itemid: "EST-1"
},]
$.extend($.fn.datagrid.methods, {
//编辑单元格方法 此处和官网提供的扩展方法一致，没有做修改 查阅网址[http://www.jeasyui.net/extension/202.html][1]
editCell: function (jq, param) {
return jq.each(function () {
var opts = $(this).datagrid('options');
var fields = $(this).datagrid('getColumnFields', true).concat($(this).datagrid('getColumnFields'));//获取列的字段，包括冻结列
for (var i = 0; i < fields.length; i++) {
var col = $(this).datagrid('getColumnOption', fields[i]);
col.editor1 = col.editor;
if (fields[i] != param.field) {
col.editor = null;
}
}
$(this).datagrid('beginEdit', param.index);
for (var i = 0; i < fields.length; i++) {
var col = $(this).datagrid('getColumnOption', fields[i]);
col.editor = col.editor1;
}
});
},
//单元格内整行数据的切换选择
keyCtrLine:function(jq){
var elem=jq.selector//获取当前datagrid的id
var dg = $("#"+elem.replace("#",''));
$(document).unbind("keydown");//取消之前定义的文档流对键盘按下的监听事件
//只要在当前页面进行上下键的操作，就会被监听，触发列数据的选择
$(document).bind('keydown', function (e) {
if(editIndex==undefined){
switch (e.keyCode) {
case 38: // up
var selected = dg.datagrid('getSelected');
if (selected) {
var index = dg.datagrid('getRowIndex', selected);
//判断选中的行的下标不能等于0，不等于0时才可上移
if(index != 0){
dg.datagrid('selectRow', index - 1);
}
} else {
var rows = dg.datagrid('getRows');
dg.datagrid('selectRow', rows.length - 1);
}
break;
case 40: // down
var selected = dg.datagrid('getSelected');
if (selected) {
var index = dg.datagrid('getRowIndex', selected);
var rows = dg.datagrid('getRows');
if(index < (rows.length-1)){
dg.datagrid('selectRow', index + 1);
}else {
dg.datagrid('selectRow', 0);
}
}else {
var rows = dg.datagrid('getRows');
dg.datagrid('selectRow',0);
}
break;
}
}
});
},
//单元格启动编辑状态时快捷键的监听事件
keyCtrCell: function (jq) {
var elem=jq.selector
var dg = $("#"+elem.replace("#",''));
var allFields = dg.datagrid('getColumnFields');
$(document).unbind("keydown");
$(document).bind('keydown', function (e) {
console.log(e.keyCode)
if(editIndex!=undefined){
switch (e.keyCode) {
case 38: // up ↑键被按下
//判断正在编辑的单元格是不是在第一行
if(editIndex != 0){
dg.datagrid('endEdit', editIndex);
//onClickCell(editIndex-1,editField)
dg.datagrid('editCell', { index: editIndex-1, field: editField });
editIndex = editIndex-1;
editField = editField;
}
break;
case 40: // down ↓键被按下
var rows = dg.datagrid('getRows');
//判断正在编辑的单元格是不是在最后第一行
if(editIndex < (rows.length-1)){
dg.datagrid('endEdit', editIndex);
//onClickCell(editIndex+1,editField)
dg.datagrid('editCell', { index: editIndex+1, field: editField });
editIndex = editIndex+1;
editField = editField;
}
break;
case 16://left shift键被按下
//判断正在编辑的单元格是不是在第一列
if(editField!=allFields[0]){
var i=allFields.indexOf(editField);
dg.datagrid('endEdit', editIndex);
dg.datagrid('editCell', { index: editIndex, field: allFields[i-1] });
editIndex = editIndex;
editField = allFields[i-1];
// onClickCell(editIndex,allFields[i-1]);
}
break;
case 9://right tab键被按下
//判断正在编辑的单元格是不是在第一列
if(editField!=allFields[allFields.length-1]){
var i=allFields.indexOf(editField);
dg.datagrid('endEdit', editIndex);
dg.datagrid('editCell', { index: editIndex, field: allFields[i+1] });
editIndex = editIndex;
editField = allFields[i+1];
//onClickCell(editIndex,allFields[i+1]);
}
break;
case 13://enter 回车键被按下
//取消当前编辑的单元格触发数据表格的行数据选择功能
dg.datagrid('endEdit', editIndex);
editIndex = undefined;
editField = undefined;
dg.datagrid("keyCtrLine")
break;
}
}
});
}
});
//定义全局变量，存储当前被操作的数据表格ID:keyCodeListionDG;所在行索引:editIndex;列头:editField;
var editIndex = undefined;
var editField = undefined;
var keyCodeListionDG=undefined;
function endEditing(obj) {
if (editIndex == undefined) { return true }
//validateRow 验证指定的行，有效时返回 true。
if (obj.datagrid('validateRow', editIndex)) {
obj.datagrid('endEdit', editIndex);
editIndex = undefined;
editField = undefined;
return true;
} else {
return false;
}
}
function onClickCell(index, field) {
var dg = $(this);
if (endEditing(dg)) {
dg.datagrid('selectRow', index).datagrid('editCell', { index: index, field: field });
editIndex = index;
editField = field;
keyCodeListionDG=this.id
$("#"+keyCodeListionDG).datagrid("keyCtrCell")
}
}
$(function () {
$("#dg").datagrid({
data: data,
frozenColumns: [[
{ field: "ck", checkbox: true },
]],
iconCls: 'icon-edit',
singleSelect: true,
onClickCell: onClickCell,
onLoadSuccess:function(){
//可以在表格初次加载成功的时候就调用行快捷键方法，也可以在需要的时候调用
$("dg").datagrid("keyCtrLine")
}
})
$("#dg1").datagrid({
data: data,
frozenColumns: [[
{ field: "ck", checkbox: true },
]],
iconCls: 'icon-edit',
singleSelect: true,
onClickCell: onClickCell,
onLoadSuccess:function(){
//$("dg1").datagrid("keyCtrLine")
}
})
})
</script>
</head>
<body>
<table id="dg" class="easyui-datagrid" title="Cell Editing in DataGrid" style="width:700px;height:auto">
<thead>
<tr>
<th data-options="field:'itemid',width:80,editor:'text'">Item ID</th>
<th data-options="field:'productid',width:100,editor:'text'">Product</th>
<th
data-options="field:'listprice',width:80,align:'right',editor:{type:'numberbox',options:{precision:1}}">
List Price</th>
<th data-options="field:'unitcost',width:80,align:'right',editor:'numberbox'">Unit Cost</th>
<th data-options="field:'attr1',width:250,editor:'text'">Attribute</th>
<th
data-options="field:'status',width:60,align:'center',editor:{type:'checkbox',options:{on:'P',off:''}}">
Status</th>
</tr>
</thead>
</table>
<table id="dg1" class="easyui-datagrid" title="Cell Editing in DataGrid" style="width:700px;height:auto">
<thead>
<tr>
<th data-options="field:'itemid',width:80,editor:'text'">Item ID</th>
<th data-options="field:'productid',width:100,editor:'text'">Product</th>
<th
data-options="field:'listprice',width:80,align:'right',editor:{type:'numberbox',options:{precision:1}}">
List Price</th>
<th data-options="field:'unitcost',width:80,align:'right',editor:'numberbox'">Unit Cost</th>
<th data-options="field:'attr1',width:250,editor:'text'">Attribute</th>
<th
data-options="field:'status',width:60,align:'center',editor:{type:'checkbox',options:{on:'P',off:''}}">
Status</th>
</tr>
</thead>
</table>
</body>
</html>
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