IO

GanttSheet supports importing and exporting different kinds of file types, and it also supports printing and exporting to pdf.

Required Dependency If you want to support IO feature (except json serialization/deserialization) you need to import and reference the specific NPM packages: Excel IO: @grapecity/spread-excelio New SJS Format: @grapecity/spread-sheets-io Print: @grapecity/spread-sheets-print PDF: @grapecity/spread-sheets-pdf Export to Excel If you want to export the gantt data to Excel, you need to make sure the serialization option is includeBindingSource: true. Note: The gantt chart column will be exported as a picture in the Excel file.
/*REPLACE_MARKER*/ /*DO NOT DELETE THESE COMMENTS*/ var myTable; var ganttSheet; var roundBarsToWholeDays = true; window.onload = function() { var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"), { sheetCount: 0 }); initSpread(spread); initSplitView(spread); }; function initSpread(spread) { spread.suspendPaint(); initDataSource(spread); initGanttSheet(spread); spread.resumePaint(); } function initDataSource(spread) { var tableName = "Gantt_Id"; var baseApiUrl = getBaseApiUrl(); var apiUrl = baseApiUrl + "/" + tableName; var dataManager = spread.dataManager(); myTable = dataManager.addTable("myTable", { batch: true, remote: { read: { url: apiUrl } }, schema: { hierarchy: { type: "Parent", column: "parentId" }, columns: { id: { isPrimaryKey: true }, taskNumber: { dataType: "rowOrder" } } } }); } function initGanttSheet(spread) { ganttSheet = spread.addSheetTab(0, "GanttSheet", GC.Spread.Sheets.SheetType.ganttSheet); var view = myTable.addView("ganttView", [ { value: "taskNumber", caption: "NO.", width: 60 }, { value: "name", caption: "Task Name", width: 200 }, { value: "duration", caption: "Duration", width: 90 }, { value: "predecessors", caption: "Predecessors", width: 120, visible: false } ]); view.fetch().then(function() { ganttSheet.bindGanttView(view); }); initSidePanel(spread, ganttSheet); } function initSidePanel(spread, ganttSheet) { var excelIo = new GC.Spread.Excel.IO(); var fileInput = document.getElementById("file-input"); var openFileItem = document.getElementById("open-file"); var fileNameItem = document.getElementById("file-name"); var exportJSONItem = document.getElementById("export-to-json"); var exportSJSItem = document.getElementById("export-to-sjs"); var exportExcelItem = document.getElementById("export-to-excel"); var printItem = document.getElementById("print"); var pdfItem = document.getElementById("pdf"); var exportFileName = "export"; openFileItem.addEventListener('click', function() { fileInput.click(); }); fileInput.addEventListener('change', function(e) { fileNameItem.value = 'Loading file...'; var file = fileInput.files[0]; if (!file) { alert("Upload a file first."); return; } var fileName = file.name; var suffix = fileName.substr(fileName.lastIndexOf('.')); if (suffix === '.xlsx' || suffix === '.xlsm') { // here is excel IO API excelIo.open(file, function(json) { spread.fromJSON(json); fileNameItem.value = fileName; fileInput.value = ''; }, function(e) { // process error console.log(e); }); } else if (suffix === '.ssjson' || suffix === '.json') { var reader = new FileReader(); reader.onload = function() { var spreadJson = JSON.parse(this.result); spread.fromJSON(spreadJson); fileNameItem.value = fileName; fileInput.value = ''; }; reader.readAsText(file); } else if (suffix === '.sjs') { spread.open(file, () => { fileNameItem.value = fileName; fileInput.value = ''; }, (e) => { console.log(e); }, { openMode: GC.Spread.Sheets.OpenMode.normal, fullRecalc: true, }); } }); exportJSONItem.addEventListener('click', function () { var fileName = exportFileName + ".ssjson"; var json = spread.toJSON(); saveAs(new Blob([JSON.stringify(json)], { type: "text/plain;charset=utf-8" }), fileName); }); exportSJSItem.addEventListener('click', function () { var fileName = exportFileName + ".sjs"; spread.save(function (blob) { saveAs(blob, fileName); }, function (e) { // process error console.log(e); }, { fileType: GC.Spread.Sheets.FileType.ssjson, includeBindingSource: true, saveAsView: true }); }); exportExcelItem.addEventListener('click', function () { var fileName = exportFileName + ".xlsx"; var json = spread.toJSON({ includeBindingSource: true, saveAsView: true }); // here is excel IO API excelIo.save(json, function(blob) { saveAs(blob, fileName); }, function(e) { // process error console.log(e); }, { xlsxStrictMode: false }); }); printItem.addEventListener('click', function() { spread.print(); }); pdfItem.addEventListener('click', function() { spread.savePDF(function (blob) { var url = URL.createObjectURL(blob); pwin = window.open(url); }); }); } function syncPanel(ganttSheet) { var zoomFactorInput = document.getElementById("zoom-factor"); zoomFactorInput.value = ganttSheet.project.timescale.zoomFactor; } function getBaseApiUrl() { return window.location.href.match(/http.+spreadjs\/demos\//)[0] + 'server/api'; } function initSplitView(spread) { var host = document.getElementById("split-view"); var content = host.getElementsByClassName("split-content")[0]; var panel = host.getElementsByClassName("split-panel")[0]; new SplitView({ host: host, content: content, panel: panel, refreshContent: function() { spread.refresh(); } }); }
<!doctype html> <html style="height:100%;font-size:14px;"> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <link rel="stylesheet" type="text/css" href="$DEMOROOT$/en/purejs/node_modules/@grapecity/spread-sheets/styles/gc.spread.sheets.excel2013white.css"> <link rel="stylesheet" type="text/css" href="$DEMOROOT$/spread/source/splitView/splitView.css"> <!-- Promise Polyfill for IE, https://www.npmjs.com/package/promise-polyfill --> <script src="https://cdn.jsdelivr.net/npm/promise-polyfill@8/dist/polyfill.min.js"></script> <script src="$DEMOROOT$/en/purejs/node_modules/@grapecity/spread-sheets/dist/gc.spread.sheets.all.min.js" type="text/javascript"></script> <script src="$DEMOROOT$/en/purejs/node_modules/@grapecity/spread-sheets-print/dist/gc.spread.sheets.print.min.js" type="text/javascript"></script> <script src="$DEMOROOT$/en/purejs/node_modules/@grapecity/spread-sheets-pdf/dist/gc.spread.sheets.pdf.min.js" type="text/javascript"></script> <script src="$DEMOROOT$/en/purejs/node_modules/@grapecity/spread-sheets-io/dist/gc.spread.sheets.io.min.js" type="text/javascript"></script> <script src="$DEMOROOT$/en/purejs/node_modules/@grapecity/spread-sheets-tablesheet/dist/gc.spread.sheets.tablesheet.min.js" type="text/javascript"></script> <script src="$DEMOROOT$/en/purejs/node_modules/@grapecity/spread-sheets-ganttsheet/dist/gc.spread.sheets.ganttsheet.min.js" type="text/javascript"></script> <script src="$DEMOROOT$/en/purejs/node_modules/@grapecity/spread-excelio/dist/gc.spread.excelio.min.js" type="text/javascript"></script> <script src="$DEMOROOT$/spread/source/splitView/splitView.js" type="text/javascript"></script> <script src="$DEMOROOT$/spread/source/js/license.js" type="text/javascript"></script> <script src="$DEMOROOT$/spread/source/js/FileSaver.js" type="text/javascript"></script> <script src="app.js" type="text/javascript"></script> <link rel="stylesheet" type="text/css" href="styles.css"> </head> <body> <div id="split-view" class="sample-tutorial"> <div id="ss" class="sample-spreadsheets split-content"></div> <div class="options-container split-panel"> <div class="option-block"> <input id="file-input" type="file" name="files[]" accept=".xlsx, .ssjson, .json, .sjs, .zip, .xlsm" class="hide" /> <div class="option-row input-box"> <label for="file-name">File Name</label> <input type="text" id="file-name" value="" disabled /> </div> <div class="option-row"> <input type="button" id="open-file" class="option-button" value="Open File" /> <div class="option-info">File Type: *.xlsx, *.ssjson, *.sjs</div> </div> </div> <div class="option-block"> <div class="option-row"> <input type="button" id="export-to-json" class="option-button" value="Export to JSON" /> </div> <div class="option-row"> <input type="button" id="export-to-sjs" class="option-button" value="Export to SJS" /> </div> <div class="option-row"> <input type="button" id="export-to-excel" class="option-button" value="Export to Excel" /> </div> </div> <div class="option-block"> <div class="option-row"> <input type="button" id="print" class="option-button" value="Print" /> </div> <div class="option-row"> <input type="button" id="pdf" class="option-button" value="PDF" /> </div> </div> </div> </div> </html>
.options-container { float: right; width: 280px; padding: 12px; height: 100%; box-sizing: border-box; background: #fbfbfb; overflow: auto; box-shadow: inset 0px 0 4px 0 rgba(0,0,0,0.4); } .option-block { background: #fff; padding: 8px; margin: 12px 0; border-radius: 4px; border: 1px dashed #82bc00; box-shadow: 0px 0 6px 0 rgba(0,0,0,0.1); } .option-block.toggle { border: 1px dotted #f7a711; } .option-row { font-size: 14px; box-sizing: border-box; padding: 4px 0; } .option-title { font-weight: bold; color: #656565; } .option-info { font-size: 12px; color: #919191; margin-top: 6px; font-weight: normal; } .option-info.valid { color: #82bc00; } .option-info.toggle { color: #f7a711; } .option-button { width: 100%; padding: 0; line-height: 20px; background: #82bc00; color: #fff; transition: 0.3s; cursor: pointer; outline: none; border-radius: 4px; box-sizing: border-box; box-shadow: 0 1px 4px 0 rgba(0,0,0,0.3); border: none; } .option-button:hover { background: #82bc00; color: #fff; box-shadow: 0 3px 8px 0 rgba(0,0,0,0.4); } .option-checkbox { background: #fff; border: 1px dashed #f7a711; color: #f7a711; padding: 2px 4px; transition: 0.3s; box-sizing: border-box; cursor: pointer; } .option-checkbox.active { color: #fff; background: #f7a711; box-shadow: 0 1px 4px 0 rgba(0,0,0,0.3); border-radius: 4px; } .selection-box { position: relative; } .selection-box > select { text-align: left; width: 100%; height: 20px; padding: 0; line-height: 20px; background: transparent; border: none; border-bottom: 2px solid #656565; color: #656565; transition: 0.3s; cursor: pointer; outline: none; box-sizing: border-box; } .selection-box > select > option { background: white; } .selection-box > select:focus { border-bottom: 2px solid #82bc00; color: #82bc00; box-shadow: 0 2px 6px 0 rgba(0,0,0,0.3); } .selection-box > label { position: absolute; cursor: pointer; font-size: 12px; color: #fff; background: #656565; padding: 0 4px; right: 0; top: 6px; box-shadow: 0 1px 4px 0 rgba(0,0,0,0.3); } .input-box { position: relative; } .input-box > input[type=text] { width: 100%; background: transparent; border: none; color: #656565; border-bottom: 2px solid #656565; outline: none; box-sizing: border-box; transition: 0.3s; } .input-box > input[type=text]:focus { color: #82bc00; border-bottom: 2px solid #82bc00; } .input-box > label { cursor: pointer; position: absolute; right: 0; top: 5px; font-size: 12px; color: #fff; background: #656565; padding: 0 4px; box-shadow: 0 1px 4px 0 rgba(0,0,0,0.3); }