为什么自定义渲染器不能按预期工作并导致奇怪的表格单元格行为?

时间:2013-06-01 07:31:59

标签: javascript jquery handsontable

我的自定义渲染器导致奇怪的单元格在行动中的行为?当我尝试编辑单元格后,光标自动下移到其他单元格,其他单元格乱七八糟,整个编辑过程从那一刻开始崩溃。

我需要根据值对一些单元格着色,这就是我需要使用某种机制的原因,我选择了在列定义中定义类型:

columns: { data: "some-property", type: {renderer: colorRenderer, editor:colorRenderer}}

不幸的是,当我这样做时,在细胞编辑期间会发生一些奇怪的行为。请在这里查看jsfiddle:http://jsfiddle.net/6QEtF/3/ line:191是个问题。

如何在不使用渲染器或渲染器出错的情况下以其他方式为单元格着色?

请帮忙......

这是我的示例代码,完全正常工作在JsFiddle(上面的链接)。

var COLUMN_TYPES = new Object();

// JSON fetched via Ajax from backend:
var res = getJSON();

// Create grid header names and definitions based on fetched JSON:
var column_names = [];
var column_defs = [];
for (var i=0; i<res.headers.length; i++) {
    column_names[i] = res.headers[i].name;
    column_defs[i] = {
        data: "valueDTO." + i + ".value", 
        type: {renderer: colorRenderer, editor:colorEditor}, // 1 way <--- cause a problem! 
        //type: res.headers[i].type,    // 2nd way is correct but without custom renderer which I need to colorize some cells.
        source: res.headers[i].sources, 
        readOnly: res.headers[i].readOnly, 
        strict: res.headers[i].strict
    };
    COLUMN_TYPES["valueDTO."+i+".value"] = res.headers[i].type;
}

// Create grid table:
createHandsontable(res.rows, column_names, column_defs, res.values);

function createHandsontable(row_names, column_names, column_defs, values) {
    var $container = $("#spreadsheet");
    var $parent = $container.parent();
    $container.handsontable({
      startRows: 4,
      startCols: 20,
      manualColumnResize: true,
      manualColumnMove: true,
      columnSorting: true,
      contextMenu: true,
      rowHeaders: row_names,
      colHeaders: column_names, //grid.headers,
      data: values, // data init only once at start
      columns: column_defs,
      cells: function (row, col, prop) {
          //return {type: {renderer: colorRenderer, editor: colorEditor}};
      }
    });
}

function colorRenderer (instance, td, row, col, prop, value, cellProperties) {
    switch (COLUMN_TYPES[prop]) {   
        case 'text':
            Handsontable.TextCell.renderer.apply(this, arguments);
            Handsontable.TextCell.editor.apply(this, arguments);
            if (value != null) {
                if (value.toString().toLowerCase() === "green") {
                    $(td).css({
                        background: '#00DC00'
                    });
                }
                else if (value.toString().toLowerCase() === "amber") {
                    $(td).css({
                        background: '#FAE600'
                    });
                }
                else if (value.toString().toLowerCase() === "red") {
                    $(td).css({
                        background: 'red'
                    });
                }
            }   
            break;
        case 'autocomplete':
            Handsontable.AutocompleteCell.renderer.apply(this, arguments);
            Handsontable.AutocompleteCell.editor.apply(this, arguments);
            break;
        case 'checkbox':
            Handsontable.CheckboxCell.renderer.apply(this, arguments);
            Handsontable.CheckboxCell.editor.apply(this, arguments);
            break;
        case 'numeric':
            Handsontable.NumericCell.renderer.apply(this, arguments);
            Handsontable.NumericCell.editor.apply(this, arguments);
            break;
        case 'date':
            Handsontable.DateCell.renderer.apply(this, arguments);
            Handsontable.DateCell.editor.apply(this, arguments);
            break;
        case 'handsontable':
            Handsontable.HandsontableCell.renderer.apply(this, arguments);
            Handsontable.HandsontableCell.editor.apply(this, arguments);
            break;
        default:
            Handsontable.TextCell.renderer.apply(this, arguments);
            Handsontable.TextCell.editor.apply(this, arguments);
            break;
    }
};

function colorEditor (instance, td, row, col, prop, value, cellProperties) {
    switch (COLUMN_TYPES[prop]) {   
        case 'text':
            Handsontable.TextCell.renderer.apply(this, arguments);
            Handsontable.TextCell.editor.apply(this, arguments);
            break;
        case 'autocomplete':
            Handsontable.AutocompleteCell.renderer.apply(this, arguments);
            Handsontable.AutocompleteCell.editor.apply(this, arguments);
            break;
        case 'checkbox':
            Handsontable.CheckboxCell.renderer.apply(this, arguments);
            Handsontable.CheckboxCell.editor.apply(this, arguments);
            break;
        case 'numeric':
            Handsontable.NumericCell.renderer.apply(this, arguments);
            Handsontable.NumericCell.editor.apply(this, arguments);
            break;
        case 'date':
            Handsontable.DateCell.renderer.apply(this, arguments);
            Handsontable.DateCell.editor.apply(this, arguments);
            break;
        case 'handsontable':
            Handsontable.HandsontableCell.renderer.apply(this, arguments);
            Handsontable.HandsontableCell.editor.apply(this, arguments);
            break;
        default:
            Handsontable.TextCell.renderer.apply(this, arguments);
            Handsontable.TextCell.editor.apply(this, arguments);
            break;
    }
};

1 个答案:

答案 0 :(得分:2)

尝试升级到latest version

http://handsontable.com/

并查看conditional formatting