Easyui datagrid行内【添加】、【编辑】、【上移】、【下移】

1、首先大概说下这几个功能里用到的主要方法，行内添加数据主要是添加列的editor属性, 行内编辑主要使用beginEdit(), endEdit(),同时一个关键就是拿到当前的操作行索引editIndex.

2、撤销用到了rejectChanges().

3、保存时使用getRows()或者getChanges(). getChanges()主要是获取添加或编辑的数据，getRows()获取到本页所有数据，主要是配合【上移】【下移】方法使用。

4、在做这个功能中我使用了一个序列化前台对象组件【json.js】，这个组件可以很方便的把前台的对象转化成json字符串，然后传到后台，实在是方便至极让我眼前一亮，要知道就在这个功能前面我还手动处理数组，使用join()拼字符串，当找到这个组件时速度效率一下几提起来了，实在是相见恨晚。



5、在做这个功能，用到这些方法时遇到的问题，刚开始时我是看easyui的官方demo，我发现添加数据后点保存，再点获取数据时就获取不到了，后经过测试发现好像是调用了acceptChanges()引起的问题。

function GetTable() {
    var editRow = undefined;
 
    $("#Student_Table").datagrid({
        height: 300,
        width: 450,
        title: '学生表',
        collapsible: true,
        singleSelect: true,
        url: '/Home/StuList',
        idField: 'ID',
        columns: [[
         { field: 'ID', title: 'ID', width: 100 },
            { field: 'Name', title: '姓名', width: 100, editor: { type: 'text', options: { required: true } } },
            { field: 'Age', title: '年龄', width: 100, align: 'center', editor: { type: 'text', options: { required: true } } },
            { field: 'Address', title: '地址', width: 100, align: 'center', editor: { type: 'text', options: { required: true } } }
        ]],
        toolbar: [{
            text: '添加', iconCls: 'icon-add', handler: function () {
                if (editRow != undefined) {
                    $("#Student_Table").datagrid('endEdit', editRow);
                }
                if (editRow == undefined) {
                    $("#Student_Table").datagrid('insertRow', {
                        index: 0,
                        row: {}
                    });
 
                    $("#Student_Table").datagrid('beginEdit', 0);
                    editRow = 0;
                }
            }
        }, '-', {
            text: '保存', iconCls: 'icon-save', handler: function () {
                $("#Student_Table").datagrid('endEdit', editRow);
 
                //如果调用acceptChanges(),使用getChanges()则获取不到编辑和新增的数据。
 
                //使用JSON序列化datarow对象，发送到后台。
                var rows = $("#Student_Table").datagrid('getChanges');
 
                var rowstr = JSON.stringify(rows);
                $.post('/Home/Create', rowstr, function (data) {
                     
                });
            }
        }, '-', {
            text: '撤销', iconCls: 'icon-redo', handler: function () {
                editRow = undefined;
                $("#Student_Table").datagrid('rejectChanges');
                $("#Student_Table").datagrid('unselectAll');
            }
        }, '-', {
            text: '删除', iconCls: 'icon-remove', handler: function () {
                var row = $("#Student_Table").datagrid('getSelections');
                 
            }
        }, '-', {
            text: '修改', iconCls: 'icon-edit', handler: function () {
                var row = $("#Student_Table").datagrid('getSelected');
                if (row !=null) {
                    if (editRow != undefined) {
                        $("#Student_Table").datagrid('endEdit', editRow);
                    }
 
                    if (editRow == undefined) {
                        var index = $("#Student_Table").datagrid('getRowIndex', row);
                        $("#Student_Table").datagrid('beginEdit', index);
                        editRow = index;
                        $("#Student_Table").datagrid('unselectAll');
                    }
                } else {
                     
                }
            }
        }, '-', {
            text: '上移', iconCls: 'icon-up', handler: function () {
                MoveUp();
            }
        }, '-', {
            text: '下移', iconCls: 'icon-down', handler: function () {
                MoveDown();
            }
        }],
        onAfterEdit: function (rowIndex, rowData, changes) {
            editRow = undefined;
        },
        onDblClickRow:function (rowIndex, rowData) {
            if (editRow != undefined) {
                $("#Student_Table").datagrid('endEdit', editRow);
            }
 
            if (editRow == undefined) {
                $("#Student_Table").datagrid('beginEdit', rowIndex);
                editRow = rowIndex;
            }
        },
        onClickRow:function(rowIndex,rowData){
            if (editRow != undefined) {
                $("#Student_Table").datagrid('endEdit', editRow);
 
            }
            
        }
        
    }); 
}

上移下移代码：

<br><br>//上移
function MoveUp() {
    var row = $("#Student_Table").datagrid('getSelected'); 
    var index = $("#Student_Table").datagrid('getRowIndex', row);
    mysort(index, 'up', 'Student_Table');
     
}
//下移
function MoveDown() {
    var row = $("#Student_Table").datagrid('getSelected');
    var index = $("#Student_Table").datagrid('getRowIndex', row);
    mysort(index, 'down', 'Student_Table');
     
}
 
 
function mysort(index, type, gridname) {
    if ("up" == type) {
        if (index != 0) {
            var toup = $('#' + gridname).datagrid('getData').rows[index];
            var todown = $('#' + gridname).datagrid('getData').rows[index - 1];
            $('#' + gridname).datagrid('getData').rows[index] = todown;
            $('#' + gridname).datagrid('getData').rows[index - 1] = toup;
            $('#' + gridname).datagrid('refreshRow', index);
            $('#' + gridname).datagrid('refreshRow', index - 1);
            $('#' + gridname).datagrid('selectRow', index - 1);
        }
    } else if ("down" == type) {
        var rows = $('#' + gridname).datagrid('getRows').length;
        if (index != rows - 1) {
            var todown = $('#' + gridname).datagrid('getData').rows[index];
            var toup = $('#' + gridname).datagrid('getData').rows[index + 1];
            $('#' + gridname).datagrid('getData').rows[index + 1] = todown;
            $('#' + gridname).datagrid('getData').rows[index] = toup;
            $('#' + gridname).datagrid('refreshRow', index);
            $('#' + gridname).datagrid('refreshRow', index + 1);
            $('#' + gridname).datagrid('selectRow', index + 1);
        }
    }
 
}

后台获取代码：

[HttpPost]
 public ActionResult Create()
 {
     string result = Request.Form[0];
       
     //后台拿到字符串时直接反序列化。根据需要自己处理
     var list = JsonConvert.DeserializeObject<List<Student>>(result);
 
     return Json(true);
 }

评论

1 楼 jiajunli 2014-08-14