This .NET class library project provides a C# Winforms UserControl that draws a gantt chart using native GDI+.
The project is written with Microsoft Visual Studio 2017, simply download the latest source code from the master branch and build the library with the IDE.
No pre-requisites other than the .NET Framework.
The project builds into a class library with example applications.
The source code includes a test project GanttChartTests which you can load and run within Microsoft Visual Studio 2017 from the test menu.
- Support time units Weeks, Days (default), Hours out-of-the-box, can be modified to support other time resolutions.
- Single tasks, grouped tasks, precedent/dependant tasks, split tasks, tagged resources
- Printing respects page margin, orientation and multiple pages per page
- Percentage complete property for each task
- Various mouse events for customising UI experience directly on the chart.
- Comes with default mouse commands that can be overridden through inheritance.
- Determines critical path and slack
Jump directly to the doxygen documentation, or visit my blog for more information. (Please make sure you are reading the updated versions while I try to keep up, thanks.)
public Form1()
{
InitializeComponents();
var manager = new ProjectManager();
var task = new Task() { Name = "Hello World" };
manager.Add(task);
var chart = new Chart();
chart.Init(manage);
this.Controls.Add(chart);
this.AutoScroll = true; // this is no longer required
}
You can manipulate the task through code using various methods in the ProjectManager:
// Set task durations
_mManager.SetDuration(wake, 3);
// Give the Tasks some organisation, setting group and
// precedents e.g. make "wake" task a subtask under "work"
_mManager.Group(work, wake);
// Setting task dependencies e.g. make "wake" task a precedent of "brush teeth" task
_mManager.Relate(wake, teeth);
// Assigning Resources e.g. add "jake" resource to "wake" task
_mManager.Assign(wake, jake);
// splitting a tasks e.g. split the "pack up" task into 2 new tasks
_mManager.Split(pack, new MyTask(_mManager), new MyTask(_mManager), 2);
// set some tooltips to show the resources in each task
// e.g. set a tooltip on the "wake" task
_mChart.SetToolTip(wake, string.Join(", ", _mManager.ResourcesOf(wake).Select(x => (x as MyResource).Name)));
You can change the default task appearance for all task, or as in here change individual task color as a demo for adding custom business data to tasks.
public partial class ExampleSimple : Form
{
ProjectManager _mProject;
public ExampleSimple()
{
InitializeComponent();
_mProject = new ProjectManager();
_mProject.Add(new Task() { Name = "New Task" });
_mProject.Add(new ColoredTask() { Name = "Purple Task", Color = Color.Purple });
_mProject.Add(new ColoredTask() { Name = "Gold Task", Color = Color.Gold });
_mChart.Init(_mProject);
// Custom behavior on paint task
_mChart.PaintTask += (s, e) =>
{
ColoredTask ctask = e.Task as ColoredTask;
if (ctask != null)
{
var format = new TaskFormat();
format = e.Format;
format.BackFill = new SolidBrush(ctask.Color);
e.Format = format;
}
};
// Grab custom data for tasks
_mChart.TaskSelected += (s, e) =>
{
ColoredTask ctask = e.Task as ColoredTask;
if (ctask != null)
{
MessageBox.Show("Selected " + ctask.Color.ToString());
}
};
}
}
// Custom task with business data
public class ColoredTask : Task
{
public ColoredTask() : base() {}
public Color Color { get; set; }
}
This project is licensed under the MIT License - see the LICENSE.md file for details
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