1、创建自定义元素
要为lightbox创建一个自定义控件,请按以下方法定义一个新对象:
gantt.form_blocks["my_editor"]={ render:function(sns){ //sns - the section's configuration object return "html code of the editor here"; }, set_value:function(node,value,task,section){ //node - an html object related to the html defined above //value - a value defined by the map_to property //task - the task object //section- the section's configuration object ... code to set value to the element ... }, get_value:function(node,task,section){ //node - an html object related to the html defined above //task - the task object //section - the section's configuration object return "current value from editor"; }, focus:function(node){ //node - an html object related to the html defined above ...code to set focus to the element... }}
要确保没有在”render”函数返回的HTML代码中对标签使用短的关闭语法,因为这可能会导致浏览器的解析问题:
//this is WRONGrender:function(){ return "<div id='box'/>";}//instead use opening and closing tags syntax:render:function(){ return "<div id='box'></div>";// recommended}

gantt.form_blocks["my_editor"] = { render: function (sns) { return "<div class='dhx_cal_ltext' style='height:60px;'>"+ "Text <input class='editor_description' type='text'>"+ "<br/>Holders <input class='editor_holders' type='text'>"+ "</div>"; }, set_value: function (node, value, task) { node.querySelector(".editor_description").value = value || ""; node.querySelector(".editor_holders").value = task.users || ""; }, get_value: function (node, task) { task.users = node.querySelector(".editor_holders").value; return node.querySelector(".editor_description").value; }, focus: function (node) { var a = node.querySelector(".editor_description"); a.select(); a.focus(); }};gantt.config.lightbox.sections = [ { name:"description", height:200, map_to:"text", type:"my_editor", focus:true}, { name:"time", height:72, type:"duration", map_to:"auto"}];
可

例如,你可以基于jQuery selected插件创建一个控件,为一个任务分配多个资源。与默认的Gantt资源控件不同,它只允许为任务分配资源,而不设置资源的数量。然而,如果您想要一个非常简单的控件,它可能是有用的。
在甘特图中使用基于jQuery chosen的控件。
在页面中包含它的源文件:
<script src="https://code.jquery.com/jquery-3.3.1.min.js=5.2.4" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/chosen/1.8.7/chosen.jquery.js=5.2.4"></script><link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/chosen/1.8.7/chosen.css=5.2.4">
描述控制逻辑:
gantt.form_blocks["multiselect"] = { render: function (sns) { var height = (sns.height || "23") + "px"; var html = "<div class='gantt_cal_ltext gantt_cal_chosen gantt_cal_multiselect'"+ "style='height:"+ height + ";'><select data-placeholder='...'"+ "class='chosen-select' multiple>"; if (sns.options) { for (var i = 0; i < sns.options.length; i++) { if(sns.unassigned_value !== undefined && sns.options[i].key==sns.unassigned_value){ continue; } html+="<option value='" +sns.options[i].key+ "'>"+sns.options[i].label+"</option>"; }} html += "</select></div>"; return html;},set_value: function (node, value, ev, sns) { node.style.overflow = "visible"; node.parentNode.style.overflow = "visible"; node.style.display = "inline-block"; var select = $(node.firstChild); if (value) { value = (value + "").split(","); select.val(value); } else { select.val([]); } select.chosen(); if(sns.onchange){ select.change(function(){ sns.onchange.call(this); }) } select.trigger('chosen:updated'); select.trigger("change");},get_value: function (node, ev) { var value = $(node.firstChild).val(); //value = value value.join(",") : null return value;},focus: function (node) { $(node.firstChild).focus(); }};
将该控件用作lightbox section,类型为:”multiselect”:
gantt.config.lightbox.sections = [ {name:"description",height:38,map_to:"text",type:"textarea",focus: true}, {name:"owner",height:60, type:"multiselect", options:gantt.serverList("people"), map_to:"owner_id", unassigned_value:5 }, {name: "time", type: "duration", map_to: "auto"}];
控件对象中的unassignd_value属性用于隐藏控件中不应用于选择的资源。您需要将相应资源的id设置为此属性的值。在上面的例子中,id=5的资源在控件中没有显示为选项。
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