SpreadJS結合40余年專業控件技術和在電子表格應用領域的經驗而推出的純前端表格控件，基于 HTML5，兼容 450 多種 Excel 公式，具備“高性能、跨平臺、與 Excel 高度兼容”的產品特性，備受華為、明源云、遠光軟件等知名企業青睞，被中國軟件行業協會認定為“中國優秀軟件產品”。SpreadJS在界面和功能上與 Excel 高度類似，但又不局限于 Excel，而是為企業信息化系統提供 表格文檔協同編輯、 數據填報 和 類 Excel 報表設計 的應用場景支持，極大降低了企業研發成本和項目交付風險。

 甘特圖是項目管理、生產排程、節點管理中非常常見的一個功能。那么，有沒有一種方法能夠幫助將甘特圖引入到系統中，讓數據的進度、排程數據的展示更加直觀，讓管理更加高效。

今天為大家帶來一個新的插件——甘特圖插件。該插件是結合 SpreadJS 本身強大的前端電子表格能力提供的一種全新的可視化展示方案，能夠有效地將生產計劃、預算排期中的日程管理信息展示出來，顯示關鍵路徑上關鍵節點的進展或狀態。其數據來自與集算表同源的數據管理器（DataManager），通過綁定 -> 視圖的方式，將層級化的任務數據通過甘特圖插件進行展示。通過這種結合，前端Excel的便捷錄入體驗和甘特圖的可視化展示可以無縫的集合在一起，使得系統更易于使用。

SpreadJS v16.0 Update1官方正式版下載

1.縮放和時間刻度滾動

JavaScript代碼：

var myTable;
var ganttSheet;
var adjustTierUnit = 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 }
]);
view.fetch().then(function() {
ganttSheet.bindGanttView(view);
}).then(function() {
ganttSheet.project.timescale.zoomOut();
});
initSidePanel(ganttSheet);
}

2. 任務欄和網格線的樣式調整

JavaScript代碼：

var myTable;
var ganttSheet;

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);
ganttSheet.project.timescale.tierMode = GC.Spread.Sheets.GanttSheet.TimescaleTierMode.topMiddleBottom;
ganttSheet.project.timescale.topTier.unit = GC.Spread.Sheets.GanttSheet.TimescaleUnit.thirdsOfMonth;
}).then(function() {
ganttSheet.gridlines.bottomTierColumn = {
lineType: GC.Spread.Sheets.GanttSheet.GanttGridlineType.dashed,
lineColor: "#c85b11"
};
ganttSheet.gridlines.ganttRows.lineType = GC.Spread.Sheets.GanttSheet.GanttGridlineType.thin;
ganttSheet.gridlines.ganttRows.lineColor = "#abd08f";
ganttSheet.gridlines.ganttRows.interval = 2;
ganttSheet.gridlines.ganttRows.intervalLineType = GC.Spread.Sheets.GanttSheet.GanttGridlineType.dashDot;
ganttSheet.gridlines.ganttRows.intervalLineColor = "#9cc3e5";
});
initSidePanel(ganttSheet);
}

function initSidePanel(ganttSheet) {
var setButton = document.getElementById("set-gridline");
var intervalPanel = document.getElementById("interval-panel");
var affectItemOption = document.getElementById("affectItem");
var lineTypeOption = document.getElementById("lineType");
var lineColorOption = document.getElementById("lineColor");
var intervalLineTypeOption = document.getElementById("intervalLineType");
var intervalLineColorOption = document.getElementById("intervalLineColor");
var intervalOption = document.getElementById("interval");

var option = convertToNormalOptions(ganttSheet, "ganttRows");
syncOptionToPanel(option);

affectItemOption.addEventListener('change', function(e) {
var target = affectItemOption.value;
if (affectItemOption.value === "ganttRows") {
intervalPanel.classList.remove("hide");
} else {
intervalPanel.classList.add("hide");
}
var option = convertToNormalOptions(ganttSheet, target);
syncOptionToPanel(option);
});
setButton.addEventListener('click', function() {
var target = affectItemOption.value;
var lineType = Number(lineTypeOption.value);
var lineColor = lineColorOption.value;
var intervalLineType = Number(intervalLineTypeOption.value);
var intervalLineColor = intervalLineColorOption.value;
var interval = Number(intervalOption.value);
var option = convertToGanttGridlineOptions(lineType, lineColor, intervalLineType, intervalLineColor, interval);
if (option) {
ganttSheet.gridlines[target] = option;
}
});

3. 數據展示布局調整

JavaScript代碼：

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);
ganttSheet.suspendPaint();
var summaryStyleRule = ganttSheet.project.taskStyleRules.getRule("summary");
var summaryStyle = summaryStyleRule.style.taskbarStyle;
summaryStyle.leftText = "start";
summaryStyle.rightText = "finish";
summaryStyleRule.style.taskbarStyle = summaryStyle;
var layout = ganttSheet.project.layout;
layout.linkLineMode = "noLinks";
layout.barHeight = 18;
ganttSheet.resumePaint();
});
initSidePanel(ganttSheet);
}

function initSidePanel(ganttSheet) {
var roundBarItem = document.getElementById("round-bar");
var linkTypeItem = document.getElementById("link-type");
var barHeightItem = document.getElementById("bar-height");
var dateFormatItem = document.getElementById("date-format");
var setLayoutItem = document.getElementById("set-layout");

roundBarItem.addEventListener("click", function() {
if (roundBarItem.classList.contains("active")) {
roundBarItem.classList.remove("active");
roundBarsToWholeDays = false;
} else {
roundBarItem.classList.add("active");
roundBarsToWholeDays = true;
}
});

setLayoutItem.addEventListener("click", function() {
var layout = ganttSheet.project.layout;
ganttSheet.suspendPaint();
layout.linkLineMode = linkTypeItem.value;
layout.barHeight = Number(barHeightItem.value);
layout.barTextDateFormat = dateFormatItem.value;
layout.roundBarsToWholeDays = roundBarsToWholeDays;
ganttSheet.resumePaint();
});
}

4. 任務操作

JavaScript代碼：

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
},
batch: {
url: apiUrl + "Collection"
}
},
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: "id", caption: "Id", width: 40 },
{ 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 }
]);
view.fetch().then(function () {
ganttSheet.bindGanttView(view);
});
initSidePanel(ganttSheet);
}

function initSidePanel(ganttSheet) {
var addTaskItem = document.getElementById("add-task");
var addSummayItem = document.getElementById("add-summary");
var addMilestoneItem = document.getElementById("add-milestone");

var deleteItem = document.getElementById("delete-task");

var indentTaskItem = document.getElementById("indent-task");
var outdentTaskItem = document.getElementById("outdent-task");

var linkTaskItem = document.getElementById("link-task");
var unlinkTaskItem = document.getElementById("unlink-task");

var submitItem = document.getElementById("submit-changes");
var cancelItem = document.getElementById("cancel-changes");

addTaskItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
addTask();
ganttSheet.resumePaint();
});
addSummayItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
addSummary();
ganttSheet.resumePaint();
});
addMilestoneItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
addMilestone();
ganttSheet.resumePaint();
});

deleteItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
deleteTask();
ganttSheet.resumePaint();
});

indentTaskItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
indentTask();
ganttSheet.resumePaint();
});
outdentTaskItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
outdentTask();
ganttSheet.resumePaint();
});

linkTaskItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
linkTask();
ganttSheet.resumePaint();
});
unlinkTaskItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
unlinkTask();
ganttSheet.resumePaint();
});

submitItem.addEventListener("click", function () {
ganttSheet.submitChanges();
});
cancelItem.addEventListener("click", function () {
ganttSheet.cancelChanges();
});

function addTask() {
var project = ganttSheet.project;
var selections = ganttSheet.getSelections();
var insertedRow = Math.min(...selections.map(r => r.row), project.tasks.length)
var rowCount = selections.map(r => r.rowCount).reduce((pre, current) => { return pre + current });
var taskData = createTaskDataList(rowCount, () => ({ name: "<新任務>" }));
project.insertTasksByRow(insertedRow, taskData);
}

function addSummary() {
var project = ganttSheet.project;
var selectedRange = ganttSheet.getSelections()[0];
var insertedRow = selectedRange.row;
var insertedTaskNumbers = ganttSheet.getTaskByRow(insertedRow).taskNumber || project.count;
var selectedTasks = getSelectedRowIndexes().map((row) => ganttSheet.getTaskByRow(row)).filter((row) => !!row);

if (selectedTasks.length == 0) {
project.insertTasks(insertedTaskNumbers, [{ name: "<新摘要任務>" }, { name: "<新任務>" }]);
project.indentTasks(insertedTaskNumbers + 1);
} else {
project.insertTasks(insertedTaskNumbers, { name: "<新摘要任務>" }, selectedTasks[0].level);
project.indentTasks(selectedTasks.map((t) => t.taskNumber));
}
ganttSheet.setSelection(insertedRow, -1, 1, -1);
}

function addMilestone() {
var project = ganttSheet.project;
var selections = ganttSheet.getSelections();
var rowCount = selections.map(r => r.rowCount).reduce((pre, current) => { return pre + current });
var insertedRow = Math.min(...selections.map(r => r.row), project.tasks.length);
var taskData = createTaskDataList(rowCount, () => ({ name: "<新里程碑>", duration: 0 }));
project.insertTasksByRow(insertedRow, taskData);
ganttSheet.setSelection(insertedRow, -1, rowCount, -1);
}

function deleteTask() {
var project = ganttSheet.project;
var rowIds = getSelectedTaskNumbers();
project.removeTasks(rowIds);
}

function indentTask() {
var project = ganttSheet.project;
var rowIds = getSelectedTaskNumbers();
project.indentTasks(rowIds);
}

function outdentTask() {
var project = ganttSheet.project;
var rowIds = getSelectedTaskNumbers();
project.outdentTasks(rowIds);
}

function linkTask() {
var project = ganttSheet.project;
var links = [];
var selections = ganttSheet.getSelections();
var previous = -1;
for (var range of selections) {
if (previous != -1) {
links.push([previous, range.row]);
}
for (var row = range.row + 1; row < range.row + range.rowCount; row++) {
links.push([row - 1, row]);
}
previous = range.row + range.rowCount - 1;
}
if (links.length <= 0) {
return;
}
project.suspendSchedule();
for (var link of links) {
var [fromTaskNumber, toTaskNumber] = link;
try {
project.addDependency({ fromTaskNumber, toTaskNumber });
} catch { }
}
project.resumeSchedule();
}

5. 日歷

JavaScript代碼：

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 initGanttSheet(spread) {
ganttSheet = spread.addSheetTab(0, "GanttSheet", GC.Spread.Sheets.SheetType.ganttSheet);
var view = myTable.addView("ganttView", [
{ value: "id", caption: "Id", width: 40 },
{ 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 }
]);
view.fetch().then(function () {
ganttSheet.bindGanttView(view);
});
initSidePanel(ganttSheet);
}

function initSidePanel(ganttSheet) {
var addTaskItem = document.getElementById("add-task");
var addSummayItem = document.getElementById("add-summary");
var addMilestoneItem = document.getElementById("add-milestone");

var deleteItem = document.getElementById("delete-task");

var indentTaskItem = document.getElementById("indent-task");
var outdentTaskItem = document.getElementById("outdent-task");

var linkTaskItem = document.getElementById("link-task");
var unlinkTaskItem = document.getElementById("unlink-task");

var submitItem = document.getElementById("submit-changes");
var cancelItem = document.getElementById("cancel-changes");

addTaskItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
addTask();
ganttSheet.resumePaint();
});
addSummayItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
addSummary();
ganttSheet.resumePaint();
});
addMilestoneItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
addMilestone();
ganttSheet.resumePaint();
});

deleteItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
deleteTask();
ganttSheet.resumePaint();
});

indentTaskItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
indentTask();
ganttSheet.resumePaint();
});
outdentTaskItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
outdentTask();
ganttSheet.resumePaint();
});

linkTaskItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
linkTask();
ganttSheet.resumePaint();
});
unlinkTaskItem.addEventListener("click", function () {
ganttSheet.suspendPaint()
unlinkTask();
ganttSheet.resumePaint();
});

submitItem.addEventListener("click", function () {
ganttSheet.submitChanges();
});
cancelItem.addEventListener("click", function () {
ganttSheet.cancelChanges();
});

function addTask() {
var project = ganttSheet.project;
var selections = ganttSheet.getSelections();
var insertedRow = Math.min(...selections.map(r => r.row), project.tasks.length)
var rowCount = selections.map(r => r.rowCount).reduce((pre, current) => { return pre + current });
var taskData = createTaskDataList(rowCount, () => ({ name: "<新任務>" }));
project.insertTasksByRow(insertedRow, taskData);
}

function addSummary() {
var project = ganttSheet.project;
var selectedRange = ganttSheet.getSelections()[0];
var insertedRow = selectedRange.row;
var insertedTaskNumbers = ganttSheet.getTaskByRow(insertedRow).taskNumber || project.count;
var selectedTasks = getSelectedRowIndexes().map((row) => ganttSheet.getTaskByRow(row)).filter((row) => !!row);

if (selectedTasks.length == 0) {
project.insertTasks(insertedTaskNumbers, [{ name: "<新摘要任務>" }, { name: "<新任務>" }]);
project.indentTasks(insertedTaskNumbers + 1);
} else {
project.insertTasks(insertedTaskNumbers, { name: "<新摘要任務>" }, selectedTasks[0].level);
project.indentTasks(selectedTasks.map((t) => t.taskNumber));
}
ganttSheet.setSelection(insertedRow, -1, 1, -1);
}

function addMilestone() {
var project = ganttSheet.project;
var selections = ganttSheet.getSelections();
var rowCount = selections.map(r => r.rowCount).reduce((pre, current) => { return pre + current });
var insertedRow = Math.min(...selections.map(r => r.row), project.tasks.length);
var taskData = createTaskDataList(rowCount, () => ({ name: "<新里程碑>", duration: 0 }));
project.insertTasksByRow(insertedRow, taskData);
ganttSheet.setSelection(insertedRow, -1, rowCount, -1);
}

function deleteTask() {
var project = ganttSheet.project;
var rowIds = getSelectedTaskNumbers();
project.removeTasks(rowIds);
}

function indentTask() {
var project = ganttSheet.project;
var rowIds = getSelectedTaskNumbers();
project.indentTasks(rowIds);
}

function outdentTask() {
var project = ganttSheet.project;
var rowIds = getSelectedTaskNumbers();
project.outdentTasks(rowIds);
}

function linkTask() {
var project = ganttSheet.project;
var links = [];
var selections = ganttSheet.getSelections();
var previous = -1;
for (var range of selections) {
if (previous != -1) {
links.push([previous, range.row]);
}
for (var row = range.row + 1; row < range.row + range.rowCount; row++) {
links.push([row - 1, row]);
}
previous = range.row + range.rowCount - 1;
}
if (links.length <= 0) {
return;
}
project.suspendSchedule();
for (var link of links) {
var [fromTaskNumber, toTaskNumber] = link;
try {
project.addDependency({ fromTaskNumber, toTaskNumber });
} catch { }
}
project.resumeSchedule();
}

function unlinkTask() {
var project = ganttSheet.project;
var taskNumbers = getSelectedTaskNumbers();
var dependencies = [];
if (taskNumbers.length == 1) {
var task = project.getTaskByRow(taskNumbers[0]);
dependencies = [...task.predecessorDependencies, ...task.successorDependencies];
} else {
var taskNumberSet = {};
for (var taskNumber of taskNumbers) {
taskNumberSet[taskNumber] = true;
}
dependencies = project.dependencies.filter(dp => taskNumberSet[dp.from.taskNumber] && taskNumberSet[dp.to.taskNumber]);
}
if (dependencies.length >= 1) {
project.removeDependency(dependencies);
}
}

function getSelectedRowIndexes() {
var rows = [];
var selections = ganttSheet.getSelections();
for (var range of selections) {
for (var row = range.row; row < range.row + range.rowCount; row++) {
rows.push(row);
}
}
return rows;
}

6. 導入和導出操作

支持將甘特圖插件中展示的內容導出至PDF及Excel的格式。

總結

甘特圖是一種強大的項目管理工具，通過直觀的時間軸展示任務的安排和進度。它能幫助項目經理們創建詳細的項目計劃，有效跟蹤進度，并合理分配資源。甘特圖還可以管理任務間的依賴關系，及時調整時間表，并識別風險與關鍵路徑。它在項目管理中扮演著重要的角色，提高了團隊的協作效率和項目的成功率。通過使用甘特圖，項目團隊能夠更好地掌握項目進展，作出決策，并確保項目按時交付。以上功能可以通過前端表格組件 SpreadJS 新晉的甘特圖插件方便的添加到系統中。

本文內容源自