jQuery技术:Handsontable Limit Cell Characters

我一直在寻找一个非常简单的问题的答案，如何阻止用户将250个字符输入到Handsontable的单元格中？ 我发现我可以重新创建validation，但这不会阻止用户输入超过250个字符。 我正在寻找像maxlength这样的东西：

 var date_validator_regexp = /(^$|^(0[1-9]|1[012])[/](0[1-9]|[12][0-9]|3[01])[/][0-9]{4}$)/; var limit_validator_regexp = /(^[sS]{0,250}$)/; $("#gridUpdateNotes").handsontable({ startRows: 1, startCols: 2, colHeaders: ["Date", "Notes"], columnSorting: false, enterBeginsEditing: false, autoWrapRow: true, autoWrapCol: true, minSpareRows: 1, colWidths: [140, 450], removeRowPlugin: true, copyPaste: true, afterValidate: function (isValid, value, row, prop, source) { if (isValid == false && prop === "Notes") { alert("The Notes cannot have more than 250 characters."); } }, columns: [ { data: "NoteDate", type: "date", dateFormat: "mm/dd/yy", allowInvalid: false, validator: date_validator_regexp }, { data: "Notes", allowInvalid: false, validator: limit_validator_regexp } ] }); 

 cmlCols = [ { data: "Notes", validator: function (value, callback) { if (value.length > 255) { alert('Must be 255 character or less. Extra characters will be removed'); this.instance.setDataAtCell(this.row, this.col, value.substring(0, 255), null); } callback(true); }]; 

 (function (Handsontable) { 'use strict'; var MaxLengthEditor = Handsontable.editors.TextEditor.prototype.extend(); MaxLengthEditor.prototype.prepare = function () { Handsontable.editors.TextEditor.prototype.prepare.apply(this, arguments); this.TEXTAREA.maxLength = this.cellProperties.maxLength; }; Handsontable.editors.MaxLengthEditor = MaxLengthEditor; Handsontable.editors.registerEditor('maxlength', MaxLengthEditor); })(Handsontable); 

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